Keystone XL Pipeline Project: Key Issues 
Paul W. Parfomak 
Specialist in Energy and Infrastructure Policy 
Robert Pirog 
Specialist in Energy Economics 
Linda Luther 
Analyst in Environmental Policy 
Adam Vann 
Legislative Attorney 
April 9, 2013 
Congressional Research Service 
7-5700 
www.crs.gov 
R41668 
CRS Report for Congress
Pr
  epared for Members and Committees of Congress        
Keystone XL Pipeline Project: Key Issues 
 
Summary 
TransCanada’s proposed Keystone XL Pipeline would transport oil sands crude from Canada and 
crude produced in North Dakota and Montana to a market hub in Nebraska for further delivery to 
Gulf Coast refineries. The proposed pipeline would consist of 875 miles of 36-inch pipe with the 
capacity to transport 830,000 barrels per day. Because it would cross the Canadian-U.S. border, 
construction of Keystone XL requires a Presidential Permit from the State Department. A decision 
to issue or deny a Presidential Permit is based on a determination that a project would serve the 
national interest, considering potential impacts on the environment, the economy, energy security, 
foreign policy, and other factors. Environmental impacts are evaluated and documented in an 
Environmental Impact Statement (EIS) under the National Environmental Policy Act (NEPA). 
TransCanada originally applied for a Presidential Permit for the Keystone XL Pipeline in 2008. 
The initial proposal included a southern segment from Oklahoma to the Gulf Coast. After a final 
EIS for the original project was released in August 2011, the State Department began a 90-day 
public review period to make its national interest determination. A key issue that arose during this 
review was concern over environmental impacts in the Sand Hills region of Nebraska. This 
concern led the Nebraska legislature to enact new state pipeline siting requirements that would 
alter the pipeline route through Nebraska. In January 2012, the State Department concluded that it 
would not have sufficient information to evaluate an altered pipeline route before a deadline 
imposed by Congress and denied the permit. The southern segment of the original Keystone XL 
proposal, now called the Gulf Coast Project, was subsequently separated from the original 
proposal because it did not require a Presidential Permit. It has been approved by the relevant 
states and is currently under construction. 
In May 2012, TransCanada reapplied to the State Department for a Presidential Permit to build 
the northern, cross-border segment of Keystone XL. The new permit application initiated a new 
NEPA process. The governor of Nebraska approved a new route through the state avoiding the 
Sand Hills on January 22, 2013. On March 6, 2013, notice was published in the Federal Register 
that the State Department draft EIS for the reconfigured Keystone XL Project was available for 
public comment until April 22, 2013. Public comments must be addressed by the State 
Department before a final EIS can be issued. After that, the 90-day public review period for the 
national interest determination begins. 
Development of the Keystone XL Pipeline has been controversial. Proponents base their 
arguments supporting the pipeline primarily on increasing the diversity of the U.S. petroleum 
supply and economic benefits, especially jobs. Pipeline opposition stems in part from concern 
regarding the greenhouse gas emissions associated with the development of Canadian oil sands, 
continued U.S. dependency on fossil fuels, and the risk of a potential release of heavy crude. The 
Energy Production and Project Delivery Act of 2013 (S. 17), the Keystone for a Secure Tomorrow 
Act (H.R. 334), a bill to approve the Keystone XL Pipeline (S. 582), and the Northern Route 
Approval Act (H.R. 3) would all effectively approve the Keystone XL Pipeline. The Strategic 
Petroleum Supplies Act (S. 167) would suspend sales of petroleum products from the Strategic 
Petroleum Reserve until the pipeline is approved. On March 22, 2013, the Senate passed an 
amendment to the Fiscal 2014 Senate Budget Resolution (S.Con.Res. 8) that would provide for 
the approval and construction of the Keystone XL Pipeline (S.Amdt. 494). 
 
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Keystone XL Pipeline Project: Key Issues 
 
Contents 
Introduction ...................................................................................................................................... 1 
Presidential Permit Review ....................................................................................................... 1 
Keystone XL Permit Applications ............................................................................................. 2 
Past Congressional Actions ....................................................................................................... 3 
Congressional Actions in the 113th Congress ............................................................................ 4 
Description of the Keystone Pipeline System .................................................................................. 5 
The Keystone and Keystone XL Pipeline Systems ................................................................... 5 
Marketlink for Bakken Oil Production ...................................................................................... 7 
Presidential Permit Application Requirements ................................................................................ 8 
The Consideration of Environmental Impacts Under NEPA ................................................... 10 
Overview of the NEPA Process Relevant to Presidential Permit Approval ...................... 10 
Milestones in the NEPA Process for the Keystone XL Pipeline Project ........................... 11 
NEPA and the National Interest Determination ....................................................................... 14 
Overview of the Process for the 2008 Keystone XL Pipeline Project ............................... 15 
State Siting and Additional Environmental Requirements ...................................................... 17 
Legislative Efforts to Change Permitting Authority ................................................................ 19 
Arguments For and Against the Pipeline ....................................................................................... 20 
Impact on U.S. Energy Security .............................................................................................. 20 
Canadian Oil Imports in the Overall U.S. Supply Context ............................................... 21 
Oil Sands, Keystone XL, and the U.S. Oil Market ........................................................... 23 
Economic Impact of the Pipeline............................................................................................. 28 
Lifecycle Greenhouse Gas Emissions ..................................................................................... 29 
Private Land Use and Oil Spill Impacts .................................................................................. 30 
Issues with the Original Pipeline Route Across the Sand Hills ............................................... 32 
 
Figures 
Figure 1. Existing Keystone Pipeline and Proposed Keystone Expansions .................................... 6 
Figure 2. The Keystone XL and Gulf Coast Projects ....................................................................... 7 
Figure 3. Gross U.S. Oil Imports by Major Sources ...................................................................... 22 
Figure 4. Proposed Enbridge Flanagan South Pipeline Route ....................................................... 26 
Figure 5. Keystone XL Project—Pipeline Route in Nebraska ....................................................... 34 
 
Tables 
Table 1. Milestones in the NEPA process for the Keystone XL Pipeline ...................................... 13 
Table 2. Milestones in National Interest Determination Process for the 2008 Keystone XL 
Pipeline ....................................................................................................................................... 17 
 
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Keystone XL Pipeline Project: Key Issues 
 
Appendixes 
Appendix A. Presidential Permitting Authority ............................................................................. 35 
Appendix B. Details of the Initial NEPA Review .......................................................................... 37 
 
Contacts 
Author Contact Information........................................................................................................... 40 
Acknowledgments ......................................................................................................................... 40 
 
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Keystone XL Pipeline Project: Key Issues 
 
Introduction1 
TransCanada (a Canadian company) has applied to the U.S. Department of State for a Presidential 
Permit to build the Keystone XL Pipeline Project. The Keystone XL Pipeline would transport 
Canadian oil sands crude extracted in Alberta, Canada, and crude produced from the Bakken 
region in North Dakota and Montana to a market hub in Nebraska for further delivery to Gulf 
Coast refineries. Because it would cross the Canadian-U.S. border, construction of Keystone XL 
requires a Presidential Permit from the State Department. A decision to issue or deny a 
Presidential Permit is based on a determination that a project would serve the national interest. 
TransCanada originally applied for a Presidential Permit for the Keystone XL Pipeline in 2008. 
The original proposal included a southern segment from Oklahoma to the Gulf Coast. After a 
final EIS for the original project was released in August 2011, the State Department began a 90-
day public review period to make its national interest determination. One key issue that arose 
during this review was concern over environmental impacts in the Sand Hills region of Nebraska. 
This concern led the Nebraska legislature to enact new state pipeline siting requirements that 
would alter the pipeline route through Nebraska. In January 2012, the State Department 
concluded that it would not have sufficient information to evaluate an altered pipeline route 
before a deadline imposed by Congress and denied the permit. TransCanada and Nebraska have 
since agreed upon an alternative pipeline route avoiding the Sand Hills.2 In May 2012, 
TransCanada reapplied to the State Department for a Presidential Permit to build the cross-border 
segment of Keystone XL. 
This report describes the Keystone XL Project, as proposed by TransCanada in its May 4, 2012, 
Presidential Permit application, and the process that the State Department is obligated to complete 
in processing that permit application. It also reviews selected issues that arose during the 2008 
permit application process, particularly those that may affect the current permit application. This 
report also summarizes key arguments that have been raised, both for and against the pipeline, by 
the pipeline’s developers, state and federal agencies, environmental groups, and other 
stakeholders. Finally, the report discusses the constitutional basis for the State Department’s 
authority to issue a Presidential Permit, and opponents’ possible challenges to this authority. 
Presidential Permit Review 
Siting authority for oil pipelines generally lies with the states. However, the construction of 
facilities at the U.S. border for exporting or importing petroleum or other fuels requires a 
Presidential Permit issued by the Department of State. Before deciding whether to grant or deny a 
Presidential Permit, the Secretary of State must determine whether a project is in the national 
interest, taking account of factors such as energy security; environmental, cultural, and economic 
                                                 
1 This report provides an overview of the Keystone XL project, permit review process, and general policy issues. For 
more detailed legal analysis, see CRS Report R42124, Proposed Keystone XL Pipeline: Legal Issues, by Adam Vann, 
Kristina Alexander, and Kenneth R. Thomas. For more analysis of U.S.-Canada energy trade, see CRS Report R41875, 
The U.S.-Canada Energy Relationship: Joined at the Well, by Paul W. Parfomak and Michael Ratner. For additional 
environmental analysis associated with Canadian oil sands, see CRS Report R42537, Canadian Oil Sands: Life-Cycle 
Assessments of Greenhouse Gas Emissions, by Richard K. Lattanzio. 
2 The southern segment of the original Keystone XL proposal, now called the Gulf Coast Project, was separated from 
the original proposal because it does not require a Presidential Permit. It is currently under construction. 
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impacts; foreign policy; and compliance with relevant federal regulations. The identification and 
consideration of environmental impacts is documented within the context of preparing an 
Environmental Impact Statement (EIS), pursuant to the National Environmental Policy Act 
(NEPA, 42 U.S.C. §4321 et seq.).3  
Generally, a draft and final EIS would be prepared for a project. Once a final EIS is issued to 
inform the national interest determination, the Secretary of State must request the views of the 
Attorney General, the Secretaries of Defense, Energy, the Interior, Transportation, Homeland 
Security, and Commerce, and the U.S. Environmental Protection Agency. The Secretary of State 
may also consult with such state, tribal, and local government officials and foreign governments, 
as the Secretary deems appropriate, with respect to each application. To expedite the process, the 
Secretary is required to allow for agency and public comment for a period not to exceed 90 days 
from the date of the request public input process begins. The details of the State Department’s 
application review process for Keystone XL are discussed later in this report. 
Keystone XL Permit Applications 
For the 2008 Keystone XL permit application, the NEPA compliance process involved 
preparation of a draft, supplemental draft, and final EIS. During that process, a wide range of 
environmental issues were identified that drew support for and opposition to the Keystone XL 
Pipeline. Once the NEPA process was largely complete (a final EIS had been issued) and the 
national interest determination process was underway, issues arose that made it clear that a 
supplemental final EIS would have to be prepared. In particular, the State Department determined 
that concern regarding pipeline construction across the Sand Hills region in Nebraska would 
require the consideration of an alternative pipeline route. In response to action taken by 
Nebraska’s governor and legislature, on November 10, 2011, the State Department announced 
that it needed to undertake an in-depth assessment of alternative pipeline routes that would avoid 
the Sand Hills.4 That assessment would be necessary before it could complete its national interest 
determination. Subsequently, on November 14, 2011, TransCanada announced an agreement with 
the Nebraska Department of Environmental Quality (DEQ) to identify a pipeline route that would 
avoid the Sand Hills. 
After the State Department’s announcement of a delay in the permit review, Congress acted to 
expedite a permit decision on the Keystone XL Pipeline. The Temporary Payroll Tax Cut 
Continuation Act of 2011 (P.L. 112-78), enacted on December 23, 2011, included provisions 
requiring the Secretary of State to issue a permit for the project within 60 days, unless the 
President publicly determined the project not to be in the national interest. The act allowed for 
future changes to the Nebraska route if approved by the governor of Nebraska. On January 18, 
2012, the State Department, with the President’s consent, denied the Keystone XL permit, citing 
                                                 
3 In processing Presidential Permit applications, the State Department is also explicitly directed to review the project’s 
compliance with the National Historic Preservation Act (16 U.S.C. §470f), the Endangered Species Act (16 U.S.C. 
§1531 et seq.), and Executive Order 12898 of February 11, 1994 (59 Federal Register 7629), concerning environmental 
justice. In processing the permit application for the Keystone XL Project, issues associated with NEPA compliance 
have drawn the most attention. In large part, that is likely because it is during the NEPA process that compliance with 
these, as well as any other environmental requirements, would be identified, documented, and demonstrated.  
4 U.S. Department of State, “Keystone XL Pipeline Project Review Process: Decision to Seek Additional Information,” 
November 10, 2011, http://www.state.gov/r/pa/prs/ps/2011/11/176964.htm.  
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insufficient time under the 60-day deadline to obtain all the necessary information to assess the 
reconfigured project.5  
On February 27, 2012, TransCanada announced that it would proceed with development of the 
Gulf Coast Project, a pipeline segment connecting Cushing, OK, to the Gulf Coast refineries 
originally proposed as part of the Keystone XL Project. The construction and operation of the 
Gulf Cost Project did not require a Presidential Permit since that segment of the pipeline would 
be located entirely within the United States. The Obama Administration has stated its support for 
the Gulf Coast Project, while reserving judgment on the reconfigured northern segment of the 
Keystone XL project until completion of a new Presidential Permit review.6  
On May 4, 2012, the State Department received a new application from TransCanada for a 
reconfigured Keystone XL Project running from the Canadian border to an existing pipeline and 
oil market hub in Steele City, NE.7 The new application identified proposed new routes through 
Nebraska. On September 5, 2012, TransCanada submitted to the Nebraska Department of 
Environmental Quality its preferred alternative route for the Keystone XL pipeline in Nebraska.8 
The governor of Nebraska approved a new route through the state on January 22, 2013.9 On 
March 1, 2013, the State Department issued a draft EIS for the modified Keystone XL Project.10 
The reconfigured project would be 875 miles long and cross three states—Montana, South 
Dakota, and Nebraska. 
Past Congressional Actions 
Since it was initially proposed in 2008, many Members of Congress have expressed support for 
the Keystone XL pipeline’s potential energy security and economic benefits, while many others 
have expressed reservations about its potential environmental impacts.11 Though Congress, to 
date, has had no direct role in permitting the pipeline’s construction, it may have an oversight role 
stemming from federal environmental statutes that govern the pipeline’s application review 
process. Congress also may seek to influence the State Department permitting process, or may 
seek to assert direct congressional authority over permit approval, through new legislation. 
                                                 
5 U.S. Department of State, “Briefing on the Keystone XL Pipeline,” briefing transcript, January 18, 2012, 
http://www.state.gov/r/pa/prs/ps/2012/01/181492.htm. 
6 The White House, Office of the Press Secretary, “Statement by the Press Secretary,” press release, February 27, 2012, 
http://www.whitehouse.gov/the-press-office/2012/02/27/statement-press-secretary. 
7 See the U.S. Department of State’s “New Keystone XL Pipeline Project” webpage at http://www.keystonepipeline-
xl.state.gov/. 
8 TransCanada Corp., “TransCanada Listens to Nebraskans: Updated Keystone XL Nebraska Re-route Reflects Their 
Feedback,” press release, September 5, 2012. 
9 Dave Heineman, governor of Nebraska, letter to President Obama and Secretary Clinton, January 22, 2013, 
http://www.governor.nebraska.gov/news/2013/01/docs/0122_Pipeline_Approval.pdf. 
10 Available online at http://keystonepipeline-xl.state.gov/draftseis/index.htm. 
11 See, for example, Matthew Daly, “53 Senators Urge Approval of Keystone XL Pipeline,” Associated Press, January 
23, 2013; Juliet Eilperin, “Democratic Lawmakers Pressure Obama Administration on Both Sides of Keystone Pipeline 
Issue,” Washington Post, October 19, 2011; House Energy & Commerce Committee, Subcommittee on Energy and 
Power, Hearing on The American Energy Initiative, Discussion Draft of H.R. ____, the North American Made Energy 
Security Act of 2011, May 23, 2011; U.S. Senator Charles Grassley, Letter to Secretary of State Hillary Rodham 
Clinton, May 16, 2011; U.S. Senator Max Baucus, Letter to Secretary of State Hillary Rodham Clinton, September 10, 
2010; U.S. Representative Henry A. Waxman, Letter to Secretary of State Hillary Rodham Clinton, July 2, 2010. 
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In the 112th Congress, a number of legislative proposals, like P.L. 112-78, would have imposed 
deadlines on a national interest determination for the Keystone XL project. The North American-
Made Energy Security Act (H.R. 1938) would have directed the President to issue a final order 
granting or denying the Presidential Permit for the Keystone XL pipeline by November 1, 2011. 
The Jobs Through Growth Act (H.R. 3400) would have required the President to issue a final 
order granting or denying the Presidential Permit for the Keystone XL pipeline within 30 days of 
enactment. The North American Energy Security Act (S. 1932) would have required the Secretary 
of State to issue a permit for the project within 60 days of enactment, unless the President 
publicly determined the project to be not in the national interest. The North American Energy 
Security Act (H.R. 3537) and the Middle Class Tax Relief and Job Creation Act of 2011 (H.R. 
3630) contained similar provisions for issuing a Presidential Permit within 60 days of enactment. 
All of these proposals were mooted by the State Department’s initial denial of the permit. 
Additional legislative proposals followed TransCanada’s second permit application. The North 
American Energy Access Act (H.R. 3548) would have transferred the permitting authority over 
the Keystone XL pipeline project from the State Department to the Federal Energy Regulatory 
Commission, requiring the commission to issue a permit for the project within 30 days of 
enactment. The Keystone for a Secure Tomorrow Act (H.R. 3811) would have immediately 
approved the original permit application filed by TransCanada in 2008. The Grow America Act of 
2012 (S. 2199), the EXPAND Act (H.R. 4301), S. 2041 (a bill to approve the Keystone XL 
pipeline), and the Energizing America through Employment Act (H.R. 4000), would have 
similarly approved the original permit upon passage. All six bills included provisions allowing for 
later alteration of the pipeline route in Nebraska. A House bill (H.R. 6164) and The Domestic 
Energy and Jobs Act (S. 3445) both would have eliminated the Presidential Permit requirement 
for the reconfigured Keystone XL pipeline as proposed in TransCanada’s permit application filed 
on May 4, 2012. A Senate amendment (S.Amdt. 2789) contained the same language.12 
H.R. 3900 sought to ensure that any crude oil transported by the Keystone XL pipeline, or 
resulting refined petroleum products, would be sold only into U.S. markets—not exported 
overseas. S. 2100 and H.R. 4211 would have suspended sales of petroleum products from the 
Strategic Petroleum Reserve until issuance of a Presidential Permit for the Keystone XL project 
application filed in 2008. 
Congressional Actions in the 113th Congress 
In the 113th Congress, several legislative proposals from the prior Congress have been 
reintroduced. The Energy Production and Project Delivery Act of 2013 (S. 17) would eliminate 
the Presidential Permit requirement for the reconfigured Keystone XL pipeline. The Keystone for 
a Secure Tomorrow Act (H.R. 334) and a Senate bill to approve the Keystone XL Pipeline (S. 
582) would directly approve the Keystone XL Pipeline under the authority of Congress to 
regulate foreign commerce. The Northern Route Approval Act (H.R. 3) would eliminate the 
Presidential Permit requirement for Keystone XL and require issuance of permits for water 
crossings by the Army Corps of Engineers within 90 days of an application, among other 
provisions. On March 22, 2013, the Senate passed an amendment to the Fiscal 2014 Senate 
Budget Resolution (S.Con.Res. 8) that would provide for the approval and construction of the 
Keystone XL Pipeline (S.Amdt. 494). Congressional debate continues. 
                                                 
12 S.Amdt. 2789 would have amended the Veterans Jobs Corps Act of 2012 (S. 3429). 
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Description of the Keystone Pipeline System 
In 2005, TransCanada announced its plan to address expected increases in Western Canadian 
Sedimentary Basin production by constructing the Keystone Pipeline System. When complete, 
the system would transport crude oil from Hardisty, Alberta, to U.S markets in the Midwest and 
Gulf Coast. The pipeline system was proposed as two distinct phases—the Keystone Pipeline 
(complete and in service) and Keystone XL Pipeline.  
The Keystone and Keystone XL Pipeline Systems 
The Keystone Pipeline was completed in two segments—the Keystone Mainline and the Cushing 
Extension. The Mainline is 1,353 miles of 30-inch pipeline from Hardisty, Alberta, to the United 
States refineries in Wood River and Patoka, Illinois. The U.S. portion of the pipeline runs 1,086 
miles and begins at the international border in Cavalier County, ND, and has been in service since 
June 2010. The Cushing Extension is 298 miles of 36-inch pipeline and associated facilities that 
run from Steele City, NE (near the Kansas border) to existing crude oil terminals and tanks farms 
in Cushing, OK. The Cushing Extension has been in service since February 2011.  
The Keystone XL pipeline system is also being proposed in two segments, as follows: 
•  The Gulf Coast Project, 485 miles of 36-inch pipeline and associated facilities 
linking the Cushing, OK, tank farms to refineries in Houston and Port Arthur, 
TX. This segment includes the Cushing Marketlink project that will provide 
receipt facilities to transport U.S. crude oil to the Gulf Coast. TransCanada 
anticipates this segment to be in service mid-to-late 2013. 
•  The Keystone XL Project, 875 miles of 36-inch pipeline and associated 
facilities linking Hardisty, Alberta to Steele City, NE. This segment also includes 
the Bakken Marketlink in Baker, MT—receipt facilities that can transport crude 
oil from the Williston Basin producing region for delivery to Steele City then 
Gulf Coast refineries. Of the Keystone Pipeline’s 830,000 bpd capacity, 100,000 
bpd has been set aside to transport Bakken crude oil.  
The Keystone Pipeline currently has the capacity to deliver up to 590,000 bpd of Canadian crude 
oil to U.S. refineries and export terminals. The Keystone XL Pipeline system (the northern and 
southern segments) would have a capacity of 830,000 bpd. As a result, the entire Keystone 
Pipeline System may ultimately have the capacity to deliver up to 1.3 million bpd of crude oil. 
The existing Keystone Pipeline and proposed expansions are illustrated in Figure 1. The 
proposed Keystone XL Project and associated projects are illustrated in Figure 2. 
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Figure 1. Existing Keystone Pipeline and Proposed Keystone Expansions  
 
Source: U.S. State Department, March 2013, Draft EIS for the Keystone XL Project, 
Section 1.2 “Overview of Proposed Project,” p. 1.2-5. 
 
TransCanada estimates the capital cost of the U.S. portion of the Keystone XL Project, from the 
U.S. border to Steele City, NE, would be $5.3 billion.13 This figure was higher than the cost 
estimate when the 2008 permit application was filed, reportedly due to currency swings, changing 
regulatory requirements, and permitting delays.14 
                                                 
13 TransCanada Keystone Pipeline, L.P., “Application of TransCanada Keystone Pipeline L.P. for a Presidential Permit 
Authorizing the Construction, Operation, and Maintenance of Pipeline Facilities for the Importation of Crude Oil to be 
Located at the United States-Canada Border,” submitted to the U.S. Department of State, May 4, 2012, p. 39, available 
at http://keystonepipeline-xl.state.gov/proj_docs/permitapplication/index.htm. 
14 “TransCanada Expects $1-Billion Cost Escalation for Keystone XL Pipeline,” Canadian Press, February 17, 2011. 
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Figure 2. The Keystone XL and Gulf Coast Projects 
 
Source: U.S State Department, March 2013, Draft EIS for the Keystone XL Project. 
Section 1.2 “Overview of Proposed Project,” p. 1.2-3. 
Marketlink for Bakken Oil Production  
The Bakken Formation is a large unconventional petroleum and natural gas resource underlying 
parts of North Dakota, Montana, and the Canadian provinces of Saskatchewan and Manitoba. 
Although the region has been producing since 1951, it is only since 2006 that prices and 
technology have made it economic for industry to increase production. In March 2012, Bakken 
production reached a new high of over 510,000 bpd, the first time breaking 500,000 bpd.15 In late 
2011, Bakken oil production in North Dakota exceeded 500,000 bpd. Depending on the pace of 
well development in the region, production is expected to increase steadily.16 To date, 
                                                 
15 North Dakota Department of Mineral Resources, “North Dakota Monthly Oil Production Statistics,” Bismarck, ND, 
2011, p. 14, https://www.dmr.nd.gov/oilgas/stats/historicaloilprodstats.pdf. 
16 James Mason, Oil and Gas Journal, “Bakken’s Maximum Potential Oil Production Rate Explored,” April 2, 2012. 
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infrastructure to transport oil produced from the Bakken Formation has not kept up with the 
increased production. Bakken shale crude oil is transported to refineries by rail and truck, in 
addition to more economical transport by pipeline. (For more analysis, see CRS Report R42032, 
The Bakken Formation: Leading Unconventional Oil Development, by Michael Ratner et al.) 
The proposed Keystone XL Project would include receipt facilities to transport crude produced 
from the Williston Basin in North Dakota and Montana to Gulf Coast refineries. That project, the 
Bakken Marketlink, would include facilities to provide crude oil transportation service from 
Baker, Montana, to Cushing, OK, via the proposed Keystone XL pipeline and from Cushing to 
delivery points in Texas, via the proposed Gulf Coast Project.17 Keystone Marketlink18 estimates 
that the project will cost $140 million and have the ability to deliver approximately 100,000 bpd 
of crude oil to the proposed Keystone XL pipeline.19 Keystone Marketlink currently has firm, 
long term contracts to transport 65,000 bpd of the 100,000 bpd.20 
The Bakken contracts improve the economics for Keystone XL Pipeline, raising the amount of oil 
slated to flow through the pipeline.21 Lower transportation costs and access to new markets may 
support further investment in the Bakken. Furthermore, TransCanada is not the only company 
adding pipeline capacity in the region. Notably, Enbridge, another Canadian pipeline company, 
has proposed the Bakken Pipeline Project, which would add 120,000 bpd of transport capacity to 
move Bakken oil to Midwest markets.22 According to Enbridge, sufficient pipeline capacity has 
been slow to emerge in the region because “they’re smaller players in the Bakken. They are not 
able to make the 20-year commitments and it’s been a lot of work to get them to commit to the 
level that [is] required to underwrite a major project out of the Bakken.”23 Rail transport capacity 
is also expanding.24 
Presidential Permit Application Requirements 
Ordinarily, federal agencies have no authority to site oil pipelines, even interstate pipelines.25 The 
primary siting authority for oil pipelines generally would be established under applicable state 
law (which may vary considerably from state to state). However, the construction, connection, 
operation, and maintenance of a pipeline that connects the United States with a foreign country 
requires Executive permission conveyed through a Presidential Permit.  
                                                 
17 The Bakken Marketlink project is described in the August 2011 final EIS for the 2008 Presidential Permit application 
in Section 2.5.3, available at http://keystonepipeline-xl.state.gov/documents/organization/182012.pdf. 
18 Keystone Marketlink, LLC, is a wholly owned subsidiary of TransCanada Pipelines Limited. 
19 2012 Application of TransCanada Keystone Pipeline, L.P. for a Presidential Permit (footnote 13), p. 16. 
20 Ibid. 
21 Vanderklippe, 2011. 
22 Enbridge, “Bakken Pipeline Project—Project Overview,” press release, http://www.enbridge.com/
BakkenPipelineProjects/BakkenPipelineProjectUS.aspx. 
23 Lauren Krugel, “TransCanada attracts support for Montana-to-Oklahoma crude pipeline,” The Canadian Press, 
January 20, 2011. 
24 Selam Gebrekidan, “Bakken Rail Terminal Ships First Crude Cargo-Lario,” Reuters, November 9, 2011. 
25 This is in contrast to interstate natural gas pipelines, which, under Section 7(c) (15 USC §717f(c)) of the Natural Gas 
Act, must obtain a “certificate of public convenience and necessity” from the Federal Energy Regulatory Commission.  
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Executive Order 13337 delegates to the Secretary of State the President’s authority to receive 
applications for Presidential Permits.26 Issuance of a Presidential Permit depends on a State 
Department determination that the project would serve the “national interest.” The term is not 
defined in the Executive Orders or elsewhere. Regarding its interpretation of the term, the State 
Department has asserted that, consistent with the President’s broad discretion in the conduct of 
foreign affairs, it has significant discretion in deciding the factors it will examine in making a 
national interest determination.27 The State Department will not necessarily evaluate the same 
factors for each project seeking a permit. However, for the 2008 Keystone XL Project, the State 
Department identified the following as key factors it considered when making determinations for 
previous applications for pipeline permits: 
•  Environmental impacts of the proposed projects; 
•  Impacts of the proposed projects on the diversity of supply to meet U.S. crude oil 
demand and energy needs; 
•  The security of transport pathways for crude oil supplies to the United States 
through import facilities constructed at the border relative to other modes of 
transport; 
•  Stability of trading partners from whom the United States obtains crude oil; 
•  Relationship between the United States and various foreign suppliers of crude oil 
and the ability of the United States to work with those countries to meet overall 
environmental and energy security goals; 
•  Impact of proposed projects on broader foreign policy objectives, including a 
comprehensive strategy to address climate change; 
•  Economic benefits to the United States of constructing and operating proposed 
projects; and 
•  Relationships between proposed projects and goals to reduce reliance on fossil 
fuels and to increase use of alternative and renewable energy sources.28 
The State Department has broad discretion in determining what factors it will examine to inform 
its national interest determination and, ultimately, whether a proposed project is in the national 
interest. However, the State Department is required to consult with and seek the views of the 
Secretaries of Defense, the Interior, Commerce, Transportation, Energy, and Homeland Security; 
the Attorney General; and the Administrator of the Environmental Protection Agency. The 
Department is also required to solicit input from affected local, tribal, and state agencies and to 
invite public comment in arriving at its determination. 
                                                 
26 See Executive Order 13337, “Issuance of Permits With Respect to Certain Energy-Related Facilities and Land 
Transportation Crossings on the International Boundaries of the United States,” 69 Federal Register 25299, May 5, 
2004, as amended, and Department of State Delegation of Authority No. 118-2 of January 26, 2006. The source of 
Permitting Authority for relevant Executive Orders is discussed further in the Appendix A. 
27 U.S. Department of State, “Final Environmental Impact Statement for the Proposed Keystone XL Project,” August 
2011, p. 1-4.  
28 Ibid. It was noted that this list is not exhaustive and that the State Department may consider additional factors in its 
national interest determination process. 
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Keystone XL Pipeline Project: Key Issues 
 
The Consideration of Environmental Impacts Under NEPA 
Apart from the potential to consider environmental impacts when making a national interest 
determination, pursuant to the National Environmental Policy Act (NEPA, 42 U.S.C. §4321 et 
seq.), the State Department would be obligated to consider the environmental impacts of granting 
or denying a Presidential Permit.29 Broadly, NEPA requires federal agencies to consider the 
environmental impacts of their actions before proceeding with them and to inform the public of 
those potential impacts. 
To ensure that environmental impacts are considered before final agency decisions are made, for 
every major federal action that may have a significant impact upon the environment, an 
Environmental Impact Statement (EIS) must be prepared.30 With respect to the 2012 Presidential 
Permit application submitted by TransCanada, the State Department concluded that approval of a 
permit for the proposed construction, connection, operation, and maintenance of the pipeline and 
its associated facilities at the United States border could result in significant environmental 
impacts and, hence, requires the preparation of an EIS.31  
This report provides an overview of the NEPA compliance process relevant to approval of a 
Presidential Permit. It also summarizes milestones in the NEPA compliance process, undertaken 
for both the 2008 permit application and the 2012 application that is currently being processed by 
the State Department. 
Overview of the NEPA Process Relevant to Presidential Permit Approval 
Preparing an EIS is the responsibility of a designated “lead agency,” in this case, the State 
Department. In developing an EIS for a private party applicant (TransCanada) the State 
Department may use a third-party contractor. Consistent with regulations implementing NEPA, 
such a contractor is one that is selected by and works under the direction of the State Department, 
but is being paid by the applicant.32  
An EIS is generally prepared in two stages—resulting in a draft and final EIS. Among other 
requirements, an EIS must include a statement of the purpose and need for an action, a 
description of all reasonable alternatives to meet that purpose and need, a description of the 
environment to be affected by those alternatives, and an analysis of the direct and indirect effects 
of the alternatives, including cumulative impacts.33 Accordingly, the State Department EIS must 
                                                 
29 In processing Presidential Permit applications, the State Department is also explicitly directed to review the project’s 
compliance with the National Historic Preservation Act (16 U.S.C. §470f), the Endangered Species Act (16 U.S.C. 
§1531 et seq.), and Executive Order 12898 of February 11, 1994 (59 Federal Register 7629), concerning environmental 
justice.  
30 42 U.S.C. §4332(2)(C). 
31 U.S. Department of State, “Notice of Intent to Prepare a Supplemental Environmental Impact Statement (SEIS) and 
To Conduct Scoping and To Initiate Consultation Under Section 106 of the National Historic Preservation Act for the 
Proposed TransCanada Keystone XL Pipeline Proposed To Extend From Phillips, MT (the Border Crossing) to Steele 
City, NE,” 77 Federal Register 36032, June 15, 2012. 
32 U.S. Department of State, “Interim Guidance for the Use of Third-Party Contractors in Preparation of Environmental 
Documents by the Department of State,” available online at http://www.state.gov/documents/organization/190304.pdf. 
33 In preparing an EIS associated with a Presidential Permit, NEPA regulations promulgated by both the Council of 
Environmental Quality (CEQ) and the State Department would apply. CEQ regulations implementing NEPA (under 40 
C.F.R. §§1500-1508) apply to all federal agencies. NEPA regulations applicable to State Department actions, which 
(continued...) 
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Keystone XL Pipeline Project: Key Issues 
 
demonstrate that it has identified and considered potential environmental impacts of the entire 
pipeline project (including the construction, operation, and maintenance of the pipeline and its 
associated facilities), not just the facilities at the border crossing. 
In preparing the EIS, the State Department must request input from “cooperating agencies,” 
which include any agency with jurisdiction by law or with special expertise regarding any 
environmental impact associated with the project.34 Cooperating agencies for the Keystone XL 
Project include the U.S. Environmental Protection Agency (EPA); the Department of 
Transportation’s Pipeline and Hazardous Materials Safety Administration (PHMSA), Office of 
Pipeline Safety (OPS); the Department of the Interior’s Bureau of Land Management, U.S. Fish 
and Wildlife Service, and National Park Service; the U.S. Army Corps of Engineers; the U.S. 
Department of Agriculture’s Farm Service Agency, Natural Resources Conservation Service, and 
Rural Utilities Service; the Department of Energy’s Western Area Power Administration; and state 
environmental agencies.  
In addition to its role as a cooperating agency, EPA is also required to review and comment 
publicly on the EIS and rate both the adequacy of the EIS itself and the level of environmental 
impact of the proposed project.35 Rating the EIS takes place after the draft is issued. The EIS 
could be rated either “Adequate,” “Insufficient Information,” or “Inadequate.” EPA’s rating of a 
project’s environmental impacts may range from “Lack of Objections” to “Environmentally 
Unsatisfactory.” In rating the impact of the action itself, EPA would specify one of the following: 
“Lack of Objections,” “Environmental Concerns,” “Environmental Objections,” or 
“Environmentally Unsatisfactory.” The federal agency, in this case the Department of State, 
would then be required to respond to EPA’s rating, as appropriate.  
As the NEPA compliance process for TransCanada’s permit application moves forward, it is 
helpful to understand the distinction between what is required under NEPA itself and what may be 
required pursuant to other environmental requirements identified within the context of the NEPA 
process. NEPA itself requires federal agencies to identify the environmental impacts of an action 
before proceeding with them and to involve the public in that process when environmental 
impacts are significant. In that process of identifying a proposed project’s environmental impacts, 
within the context of preparing the EIS, the lead agency should identify any compliance 
obligations (licenses, permits, or approvals) established under additional state, tribal, and federal 
law applicable to the portion of the project constructed in the United States (see “State Siting and 
Additional Environmental Requirements,” below). 
Milestones in the NEPA Process for the Keystone XL Pipeline Project 
For TransCanada’s 2008 Presidential Permit application, a draft, supplemental draft, and final EIS 
was prepared. Those documents identified environmental impacts associated with the Keystone 
XL Pipeline—a proposed pipeline route that would have extended from the Canadian border in 
                                                                  
(...continued) 
supplement the CEQ regulations, are found at 22 C.F.R. Part 161. 
34 40 C.F.R. §1508.5. Also, Executive Order 13337 directs the Secretary of State to refer an application for a 
Presidential Permit to other specifically identified federal departments and agencies on whether granting the application 
would be in the national interest. 
35 For more information, see the U.S. Environmental Protection Agency’s “Environmental Impact Statement (EIS) 
Rating System Criteria” at http://www.epa.gov/compliance/nepa/comments/ratings.html. 
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Phillips County, MT, to Steele City, NE, and construction of a pipeline from Cushing, OK, to the 
Gulf Coast of Texas. For the 2012 permit application, the EIS evaluates potential impacts 
associated with the new route from Montana to Steele City, NE, that avoids the Nebraska Sand 
Hills, and excludes the proposed Gulf Coast Project.  
On March 1, 2013, the State Department released the draft EIS for the proposed Keystone XL 
Project,36 as a supplement to the final EIS prepared for the 2008 Presidential Permit application 
(released in August 2011).37 According to the State Department, the draft EIA includes a 
“comprehensive review of the new route in Nebraska as well as any significant new 
circumstances or information that is now available on the largely unchanged route in Montana 
and South Dakota. It also expands and updates information that had been included in the 2011 
Final Environmental Impact Statement that was prepared for the previous Keystone XL 
application.”38 
On March 8, a notice of availability for the draft EIS was published in the Federal Register.39 For 
a minimum of 45 days after publishing that notice, the State Department must receive public 
comments (including local, state, tribal, or federal agency comments) on the draft. The public 
comment period ends on April 22, 2013. After receiving agency and public comments on the draft 
EIS, and possibly modifying the EIS to address those comments, the State Department may issue 
a final EIS. The time it takes between the issuance of the draft and the final EIS would depend on 
a range of factors, including the scope and the nature of the comments—particularly comments 
from cooperating agencies, such as EPA.  
Major milestones in the NEPA process, for both the 2008 and 2012 Presidential Permit 
applications are listed in Table 1, below (for detail on milestones associated with the 2008 permit 
application, see Appendix B). 
                                                 
36 See U.S. Department of State, “New Keystone XL Pipeline Application” webpage at http://www.keystonepipeline-
xl.state.gov/. 
37 The State Department refers to the EIS released in 2013 as a “Draft Supplemental” EIS. This reference apparently 
reflects the fact that the 2013 draft EIS draws largely from (or supplements) documentation and analysis included in the 
final EIS issued for the Keystone XL Project in 2011. However, for purposes of NEPA compliance, the submission of a 
new permit application in May 2012 started the NEPA process anew. While it may draw from the 2011 final EIS, the 
2013 draft EIS is a new NEPA document—not a supplement to an EIS prepared for a different, albeit similar, 
Presidential Permit application. 
38 See footnote 36. 
39 See the U.S. Environmental Protection Agency, “Environmental Impacts Statements; Notice of Availability,” 
78 Federal Register 15012, March 8, 2013.  
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Table 1. Milestones in the NEPA process for the Keystone XL Pipeline 
Federal, State, and Company Actions Relevant to the NEPA Compliance Process 
Date Party 
Description 
NEPA Compliance Milestones Relevant to TransCanada’s 2008 Presidential Permit Application 
Sept. 
TransCanada 
An application for a Presidential Permit is submitted to the State Department to 
2008 
Keystone 
authorize “the construction, connection, operation, and maintenance of pipeline 
Pipeline, L.P. 
facilities for the importation of crude oil to be located at the United States-
Canada border”; a “Preliminary Environmental Report” for the project is also 
submitted.  
Apr. 16, 
State 
Draft EIS for the proposed Keystone XL Pipeline project is released for public 
2010 
Department 
comment. 
July 16, 
EPA 
The agency rates the draft EIS as “Inadequate,” noting that potential y significant 
2010 
impacts were not evaluated, that the additional information and analysis was 
needed, and that the draft EIS would need to be formally revised and again made 
available for public review. 
Apr. 15, 
State 
Supplemental draft EIS issued. 
2011 
Department 
June 6, 
EPA 
The agency rates the supplemental draft EIS as having “Insufficient Information” 
2011 
and the action as having “Environmental Objections.” EPA recommends 
additional analysis on a range of issues. 
Aug. 26, 
State 
Final EIS issued; 90-day public comment related to the national interest 
2011 
Department 
determination process begins. 
Nov. 22, 
Governor of 
The governor signs legislation passed during the special session directing the 
2011 
Nebraska 
Nebraska DEQ to work col aboratively with the State Department to gather 
information necessary for a supplemental EIS.  
Nov. 
Nebraska 
The agencies begin to negotiate a Memorandum of Understanding (MOU) 
2011 
DEQ/State 
regarding their col aboration on the supplemental EIS. Nebraska DEQ hires a 
Department 
contractor to delineate the “Sand Hills” region that alternative routes must 
avoid. 
Dec. 23, 
Congress 
The Temporary Payrol  Tax Cut Continuation Act of 2011 (P.L. 112-78) is 
2011 
enacted, including provisions requiring the Secretary of State to issue a permit 
for the project within 60 days, unless the President determines the project is 
not in the national interest.  
Jan. 18, 
State 
The agency announces, with the President’s consent, that it will deny the 
2012 
Department 
Keystone XL permit. It states that its decision was predicated on the fact that 
the 60-day deadline under P.L. 112-78 did not provide sufficient time to obtain 
information necessary to assess the current project’s national interest. 
Feb. 3, 
State 
Formal permit denial issued; State Department and Nebraska DEQ suspend 
2012 
Department 
work on MOU regarding a supplemental EIS. 
Feb. 
TransCanada 
The company informs the State Department of its intent to continue with the 
2012 
Gulf Coast Project (a pipeline that would not require an EIS if constructed apart 
from the lager project that requires authorization via a Presidential Permit). 
April 19, 
TransCanada 
The company submits to Nebraska DEQ, Initial Report Identifying Alternative and 
2012 
Preferred Corridors for Nebraska Reroute; public meetings on the newly proposed 
routes followed. 
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Date Party 
Description 
NEPA Compliance Milestones Relevant to TransCanada’s 2013 Presidential Permit Application 
May 4, 
TransCanada 
An application for a Presidential Permit is submitted to the State Department to 
2012 
authorize “the construction, connection, operation, and maintenance of pipeline 
facilities for the importation of crude oil to be located at the United States-
Canada border.” 
June, 15, 
State 
The department posts in the Federal Register: “Notice of Intent To Prepare a 
2012 
Department 
Supplemental Environmental Impact Statement (SEIS) and To Conduct Scoping 
and To Initiate Consultation Under Section 106 of the National Historic 
Preservation Act for the Proposed TransCanada Keystone XL Pipeline 
Proposed To Extend From Phillips, MT (the Border Crossing) to Steele City, 
NE.” 
March 1, 
State 
Draft EIS for the 2012 Keystone XL Project is released for public comment; 
2013 
Department 
comments will be received until April 22, 2013. 
April 22, 
State 
Deadline for submission of public comments on the draft EIS. 
2013 
Department 
Source: Congressional Research Service, based on a review of events during, and affecting, the NEPA process 
conducted for the 2008 and 2012 Presidential permit applications for the Keystone XL Project. 
Had the State Department modified its final EIS for the 2008 Presidential Permit application and 
continued its national interest determination, as it originally proposed in November 2011, it could 
have completed the NEPA process with only the publication of a supplemental final EIS that 
included analysis of new routes through Nebraska. However, denial of the Presidential Permit 
ended the NEPA process for the 2008 project. With the new Presidential Permit application, the 
State Department is required to begin a new NEPA process and, eventually, determine whether 
that project would serve the national interest.40  
NEPA and the National Interest Determination 
Generally, after a final EIS is issued, a federal agency may issue a final record of decision (ROD) 
for the project. However, for a Presidential Permit, issuance of the final EIS represents the 
beginning of a 90-day public review period during which the State Department gathers 
information from those necessary to inform its national interest determination. Ultimately, a 
decision regarding issuance of a Presidential Permit for a pipeline project would be reflected in a 
combined “Record of Decision and National Interest Determination,” issued by the State 
Department.41 That document, required under elements of both NEPA and E.O. 11424, formalizes 
the selection of a project alternative. 
The process of determining a project’s national interest illustrates the distinctly different, yet 
interrelated requirements applicable to the NEPA process and the Presidential Permit application 
process. Under NEPA, the State Department (or any other federal agency considering an action) 
must fully assess the environmental consequences of an action and potential project alternatives 
before making a final decision. NEPA does not prohibit a federal action that has adverse 
                                                 
40 See footnote 36. 
41 For example, see U.S. Department of State, “Record of Decision and National Interest Determination, TransCanada 
Keystone Pipeline, LP Application for Presidential Permit,” February 25, 2008, http://www.cardnoentrix.com/keystone/
project/SignedROD.pdf. 
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Keystone XL Pipeline Project: Key Issues 
 
environment impacts; it requires only that a federal agency be fully aware of and consider those 
adverse impacts before selecting a final project alternative. That is, NEPA is intended to be part of 
the decision-making process, not dictate a particular outcome. By contrast, issuance of a 
Presidential Permit is predicated on the Secretary of State finding that the proposed project would 
serve the national interest.  
Overview of the Process for the 2008 Keystone XL Pipeline Project 
During the 90-day public review period for the 2008 Presidential Permit application, the State 
Department held public meetings in each of the six states through which the proposed pipeline 
would pass and in Washington, DC.42 The meetings were intended to give members of the public 
additional opportunity to voice their opinions on issues they thought should be taken into account 
in determining whether granting or denying the Presidential Permit would be in the national 
interest. During the review period, the State Department received input from state, local, and 
tribal officials as well as members of the public. 
On November 10, 2011, during the public review period, the State Department issued a statement 
regarding the public comments and its response to those comments.43 The department stated that 
it received comments on a wide range of issues including the project’s potential impact on jobs, 
pipeline safety, health concerns, the societal impact of the project, and oil extraction in Canada. 
Concern regarding the proposed pipeline route through the Sand Hills area of Nebraska was 
identified as one of the most common issues raised. Comments regarding that pipeline route were 
consistent with the environmental impacts identified in the final EIS with regard to the unique 
combination of characteristics of the Sand Hills region (e.g., a high concentration of wetlands of 
special concern, a sensitive ecosystem, and extensive areas of very shallow groundwater). 
Further, the Nebraska legislature convened a special session to consider the legislation that would 
establish regulations applicable to pipeline siting within the state.  
Facing the prospect of new state pipeline siting regulations applicable to the Sand Hills, together 
with the concern about the Keystone XL pipeline’s specific “preferred” route, the State 
Department announced that it needed additional information about alternative pipeline routes 
avoiding the environmentally sensitive Sand Hills area in Nebraska before moving forward with 
its national interest determination.44 Although the State Department did not decide that 
environmental issues led to a determination that the proposed project was not in the national 
interest, environmental issues identified in the final EIS, and further stressed in public comments, 
led to its decision to delay that determination until it gathered this information. In a concurrent 
press release, President Obama stated 
Because this permit decision could affect the health and safety of the American people as 
well as the environment, and because a number of concerns have been raised through a 
public process, we should take the time to ensure that all questions are properly addressed 
and all the potential impacts are properly understood.45 
                                                 
42 U.S. Department of State press release, “Keystone XL Final Environmental Impact Statement Released; Public 
Meetings Set,” August 26, 2011, http://www.state.gov/r/pa/prs/ps/2011/08/171082.htm. 
43 U.S. Department of State, “Keystone XL Pipeline Project Review Process: Decision to Seek Additional 
Information,” Media Note, PRN 2011/1909, Office of the Spokesperson, November 10, 2011. 
44 Ibid. 
45 The White House, Office of the Press Secretary, “Statement by the President on the State Department’s Keystone XL 
(continued...) 
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Keystone XL Pipeline Project: Key Issues 
 
Subsequently, TransCanada announced that it would work with the State Department and the 
Nebraska Department of Environmental Quality (DEQ) to conduct an environmental assessment 
to define the best location for the Keystone XL pipeline in Nebraska. Further, the company stated 
that it would “cooperate with these agencies and provide them with the information they need to 
complete a thorough review that addresses concerns regarding the Sandhills region.”46 
The State Department has subsequently stated that it did not anticipate concluding the federal 
review process before the end the first quarter of 2013.47 In a 2011 press interview, President 
Obama also appeared to suggest that, notwithstanding the delegation of Presidential Permit 
authority to the State Department, he would be personally involved in the final decision on the 
Keystone XL Pipeline permit application.48  
As noted previously, on December 23, 2011, the Temporary Payroll Tax Cut Continuation Act of 
2011 was enacted (P.L. 112-78). Under Section 501, “Permit for Keystone XL Pipeline,” the 
Secretary of State was required to grant the Presidential Permit for the Keystone XL pipeline 
project within 60 days, unless the President determined that the pipeline would not be in the 
national interest. On January 18, 2012, the State Department announced, with the President’s 
concurrence, that the Presidential Permit for the proposed Keystone XL Pipeline would be denied 
at that time because it was determined not to serve the national interest. That recommendation 
“was predicated on the fact that the Department does not have sufficient time to obtain the 
information necessary to assess whether the project, in its current state, is in the national 
interest.”49 Milestones in the State Department process to make its national interest determination 
for the 2008 permit application are summarized in Table 2. 
                                                                  
(...continued) 
Pipeline Announcement,” November 10, 2011. 
46 See TransCanada Corp., Media Advisory, “State of Nebraska to Play Major Role in Defining New Keystone XL 
Route Away From the Sandhills,” November 14, 2011, available at http://www.transcanada.com/5896.html.  
47 Victoria Nuland, Spokesperson, U.S. Department of State, daily press briefing, January 22, 2013. 
48 KETV NewsWatch 7, “Uncut: KETV’s Rob McCartney Interviews President Obama,” Omaha, NE, November 1, 
2011, http://www.ketv.com/video/29652519/detail.html. 
49 U.S. Department of State, Media Note, “Denial of the Keystone XL Pipeline Application,” January 18, 2012, 
available at http://www.state.gov/r/pa/prs/ps/2012/01/181473.htm.  
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Keystone XL Pipeline Project: Key Issues 
 
Table 2. Milestones in National Interest Determination Process for the 2008 
Keystone XL Pipeline 
Date Party 
Description 
Aug.-
State 
The 90-day public review period for national interest determination begins; 
Oct. 
Department 
State Department holds public meetings in the six states through which the 
2011 
proposed pipeline would pass and in Washington, DC. 
Oct. 
Congress 
Fourteen Members of Congress request the State Department Office of 
2011 
Inspector General (IG) to investigate the department’s handling of the EIS and 
national interest determination for the Keystone XL project. 
Oct. 24, 
Governor of 
The governor calls the Nebraska legislature into a special session to determine if 
2011 
Nebraska 
siting legislation can be crafted and passed for pipeline routing in Nebraska.  
Nov. 4, 
State 
IG announces it is initiating a special review to determine to what extent the 
2011 
Department 
Department and all other parties involved complied with Federal laws and 
regulations relating to the Keystone XL pipeline permit process. 
Nov. 10, 
State 
The agency announces that additional information will be needed regarding 
2011 
Department 
alternative pipeline routes that would avoid the Nebraska Sand Hills before 
national interest determination can be made. Officials suggest that analysis 
needed to prepare the supplemental EIS, including additional public comment, 
could be completed as early as the first quarter of 2013. 
Nov. 14, 
TransCanada 
The company announces that it will work with the Nebraska Department of 
2011 
Environmental Quality (DEQ) to identify a potential pipeline route that would 
avoid the Nebraska Sand Hills. 
Nov. 22, 
Governor of 
The governor signs legislation passed during the special session directing the 
2011 
Nebraska 
Nebraska DEQ to work col aboratively with the State Department to gather 
information necessary for a supplemental EIS.  
Nov. 
Nebraska 
The agencies begin to negotiate a Memorandum of Understanding (MOU) 
2011 
DEQ/State 
regarding their col aboration on the supplemental EIS. Nebraska DEQ hires a 
Department 
contractor to delineate the “Sand Hills” region that alternative routes must 
avoid. 
Dec. 23, 
Congress 
The Temporary Payrol  Tax Cut Continuation Act of 2011 (P.L. 112-78) is 
2011 
enacted, including provisions requiring the Secretary of State to issue a permit 
for the project within 60 days, unless the President determines the project is 
not in the national interest.  
Jan. 18, 
State 
The agency announces, with the President’s consent, that it will deny the 
2012 
Department 
Keystone XL permit. 
Source: Congressional Research Service, based on a review of events during, and affecting, the State Department’s 
national interest determination for the 2008 Presidential Permit application for the Keystone XL pipeline project. 
State Siting and Additional Environmental Requirements 
As noted above, the federal government does not currently exercise siting authority over oil 
pipelines. Instead, siting for the Keystone XL pipeline must comply with any applicable state 
law—which can vary from state to state. South Dakota, for example, required TransCanada to 
apply for a permit for the Keystone XL pipeline from the state public utility commission, which 
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Keystone XL Pipeline Project: Key Issues 
 
issued the permit on April 25, 2010.50 Montana requires a certificate from the state’s Department 
of Environmental Quality.51  
At the time of TransCanada’s initial application for a Presidential Permit, Nebraska did not have 
any permitting requirements that applied specifically to the construction and operation of oil 
pipelines, although a state statute does include an “eminent domain” provision, which grants 
eminent domain authority to oil pipeline companies that are unable to obtain the necessary 
property rights from the relevant property owners.52 However, due to the controversy surrounding 
the Keystone XL project, Nebraska’s governor called a special session of its legislature to enact 
legislation to assert state authority over pipeline siting. Subsequently, the state enacted two 
laws—one that would affect the siting of the Keystone XL pipeline and one that outlines 
procedures for siting any future oil pipeline in Nebraska.53 The latter will require an oil pipeline 
carrier proposing to construct a major oil pipeline in Nebraska to file an application with the 
state’s Public Service Commission and receive approval before beginning construction. 
Additionally, the law authorized the commission to follow certain procedures before deciding 
whether a proposed oil pipeline would serve the public interest. 
Although there are limited federal requirements applicable to oil pipeline siting, there are 
numerous local, state, tribal, and federal requirements applicable to pipeline construction, 
operation, and maintenance. For example, the 2013 draft EIS for the Keystone XL Project lists 
major permits, licenses, approvals, and consultation requirements for the proposed project that 
would be required by federal, state, and local agencies prior to implementation of the project.54 
Following are selected requirements included on that list: 
•  The U.S. Army Corps of Engineers—issuance of a permit for sections of the 
project that require placement of dredge and fill material in waters of the United 
States, including wetlands (pursuant to Section 404 of the Clean Water Act), or 
for pipeline crossings of navigable waters (pursuant to Section 10 of the Rivers 
and Harbors Act);  
•  The Environmental Protection Agency—review and issue National Pollutant 
Discharge Elimination System permits for the discharge of pollutants in state 
waters (pursuant to Section 402 of the Clean Water Act);  
•  The Bureau of Land Management—grant temporary use permits for portions of 
the project that would encroach on federal lands;  
•  U.S. Fish and Wildlife Service—consider impacts to federally listed endangered 
species (pursuant to the Endangered Species Act) and provide a Biological 
Opinion if the project is likely to adversely affect federally listed species. 
                                                 
50 South Dakota Public Utilities Commission, Final Decision and Order; Notice of Entry Before the Public Utilities 
Commission of the State of South Dakota, In the Matter of the Application by TransCanada Keystone Pipeline, LP for 
a Permit Under the South Dakota Energy Conversion and Transmission Facilities Act to Construct the Keystone 
Pipeline Project, HP07-001, http://puc.sd.gov/commission/orders/HydrocarbonPipeline/2008/hp07-001.pdf. 
51 Montana Major Facility Siting Act, Title 75, Chapter 20. 
52 Nebraska Rev. Stat. §57-1101. 
53 See Nebraska governor Dave Heineman’s November 23, 2011, statement “Common Sense Solution,” available at 
http://www.governor.nebraska.gov/columns/2011/11/23_solution.html.  
54 U.S. Department of State, March 2013, Draft EIS, Section 1.9, “Permits, Approvals, and Regulatory Requirements.” 
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•  Multiple state/county agencies—consult on and/or consider issuance of permits 
for projects that cross navigable waters or state highways, or involve work 
potentially affecting state streams, cultural resources, or natural resources.  
The time it took to complete the NEPA process was a focus of attention for the 2008 Presidential 
Permit application. However, for past pipeline projects, obtaining all required local, state, tribal, 
and federal permits, approvals, and licenses took a similar amount of time. By way of example, 
for the Alberta Clipper pipeline project (another oil sands pipeline) completion of the NEPA 
process, the national interest determination and issuance of a Presidential Permit took 
approximately two years. Obtaining the necessary permits, approvals, and licenses for 
construction of the pipeline took an additional two years. 
Legislative Efforts to Change Permitting Authority 
In light of the State Department’s denial of the 2008 permit application for the Keystone XL 
Project, some in Congress have sought alternative means to support development of the pipeline. 
There were a number of legislative proposals in the 112th Congress to change the federal 
permitting authority for the pipeline. H.R. 3548 would have transferred the permitting authority 
over the Keystone XL Project from the State Department to the Federal Energy Regulatory 
Commission (FERC), requiring the commission to issue a permit for the project within 30 days of 
enactment.55 Other proposals, such as H.R. 3811 and S. 3445, would have directly shifted 
permitting authority to Congress, effectively approving upon enactment the permit applications 
filed by TransCanada in 2008 and 2012, respectively.  
Changing, or eliminating altogether, the State Department’s role in issuing cross-border 
infrastructure permits may raise questions about the President’s executive authority (further 
discussed in the Appendix A). In response to H.R. 3548, for example, the State Department’s key 
official on Keystone XL testified before Congress: 
The legislation raises serious questions about existing legal authorities, questions the 
continuing force of much of the federal and all of the state and local environmental and land 
use management authority over the pipeline, and overrides foreign policy and national 
security considerations implicated by a cross border permit, which are properly assessed by 
the State Department.56 
Such proposals may also raise some administrative and legal challenges for FERC or other 
federal agencies. A senior FERC official testified that a proposal like H.R. 3548 does not provide 
enough time for an “adequate” public record, provides no clear authority for enforcing measures 
required in the EIS, does not articulate a process for authorizing alterations to the pipeline route 
in Nebraska, and is unclear about permits required from other federal agencies, among other 
                                                 
55 The Surface Transportation Extension Act of 2012, Part II (H.R. 4348), which passed in the House on April 18, 
2012, also contained these provisions, but they were subsequently dropped from the bill in conference committee with 
the Senate. 
56 Kerri-Ann Jones, Assistant Secretary of State for Oceans and International Environmental and Scientific Affairs, 
Testimony before the House Energy and Commerce Committee, Subcommittee on Energy and Power Hearing on the 
North American Energy Access Act, January 25, 2012. 
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Keystone XL Pipeline Project: Key Issues 
 
concerns.57 For additional analysis of associated legal issues, see CRS Report R42124, Proposed 
Keystone XL Pipeline: Legal Issues, by Adam Vann, Kristina Alexander, and Kenneth R. Thomas. 
Given the State Department’s initial permit denial, and opposition from various environmental 
groups and stakeholders along the pipeline route, legal challenges are a possibility. However, in 
the event of a challenge based on an environmental issue, the distinction between State 
Department actions required under NEPA and those required under its authority to issue a 
Presidential Permit would be relevant. NEPA does not create a private right of action. Instead, 
judicial challenges to a federal agency action under NEPA are brought pursuant to the 
Administrative Procedure Act (APA, 5 U.S.C. §§706 et seq.). Presidential actions, however, are 
not subject to judicial review under the APA.58 That is, the final agency action reflected in an 
ROD is subject to judicial review, but the State Department’s national interest determination, 
made under its authority to issue a Presidential Permit, is not. For more analysis of the State 
Department’s authority to grant a Presidential Permit, see Appendix A.  
Arguments For and Against the Pipeline 
Proponents of the Keystone XL Project, including Canadian agencies and U.S. and Canadian 
petroleum industry stakeholders, base their arguments supporting the pipeline primarily on 
increasing the security and diversity of the U.S. petroleum supply and economic benefits, 
especially jobs. Pipeline opponents are generally environmental organizations and community 
groups. Their concerns stem from issues that can be broadly categorized as the pipeline’s global 
or community impacts. “Global” impacts stem primarily from concern regarding the lifecycle 
greenhouse gas (GHG) emissions associated with the development of Canadian oil sands, 
compared to conventional oil or renewable fuels.59 Although the concern regarding GHG 
emissions is focused primarily on the extraction process, opponents also argue that use of the oil 
sands crude promotes continued U.S. dependency on fossil fuels. Concern over adverse 
community impacts of the pipeline stems primarily from impacts associated with the pipeline’s 
construction and long-term use on private land—particularly its potential to affect agricultural 
uses and cattle grazing. Communities along the pipeline route are also concerned about the risk of 
a potential release of heavy crude and the operators’ ability to respond to a release, particularly in 
remote areas. 
Impact on U.S. Energy Security 
In its Presidential Permit application, TransCanada asserts that constructing the proposed 
Keystone XL pipeline is in the U.S national interest to maintain adequate crude oil supplies for 
U.S. refineries. The application argues that the pipeline will allow U.S. refiners to substitute 
                                                 
57 Jeff Wright, Director, Office of Energy Projects, Federal Energy Regulatory Commission, Testimony before the 
House Energy and Commerce Committee, Subcommittee on Energy and Power Hearing on the North American Energy 
Access Act, January 25, 2012. 
58 While the APA’s definition of “agency” does not specifically exclude or include the president, the Supreme Court 
has held that exercises of presidential authority are not subject to judicial review because the president is not an agency 
(Dalton v. Specter, 511 U.S. 462, 470 (1994)). The Court has also held that the APA does not apply to the president 
based on separation of powers principles (Franklin v. Massachusetts, 505 U.S. 788, 800-01 (1992)). 
59 For additional analysis of greenhouse gas issues associated with Canadian oil sands crudes, see CRS Report R42537, 
Canadian Oil Sands: Life-Cycle Assessments of Greenhouse Gas Emissions, by Richard K. Lattanzio.  
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Keystone XL Pipeline Project: Key Issues 
 
Canadian supply for other foreign crude supply and to obtain direct pipeline access to secure and 
growing Canadian crude output. In particular, the application asserts that the pipeline would allow 
the United States to decrease its dependence on foreign crude oil supplies from Mexico and 
Venezuela, the two largest oil exporters into the U.S. Gulf Coast.60 Consistent with this argument, 
H.R. 3900 would seek to ensure that any crude oil and bitumen transported by the Keystone XL 
pipeline, or any resulting refined products, would have to remain in U.S. markets subject to a 
presidential waiver allowing foreign export.61 Depending upon the circumstances, however, such 
restrictions could raise concerns with respect to international trade agreements, among other 
considerations. 
Energy security arguments have taken on additional weight in light of the recent geopolitical 
tensions in the Middle East and North Africa. However, it is worth noting that even if Keystone 
XL is built, prices for the crude oil it carries as well as for domestically produced oil from 
elsewhere will continue to be affected by international events. The oil market is globally 
integrated and events in major producer and consumer countries can affect prices everywhere.62 
For example, the disruption of Libyan supply in early 2011 contributed to higher crude oil prices 
in the United States, even though the United States imported almost no oil from Libya before the 
unrest broke out.63  
Canadian Oil Imports in the Overall U.S. Supply Context64 
Gross U.S. imports of crude oil and petroleum products averaged 11.4 million bpd (Mbpd) in 
2011.65 U.S. oil exports averaged 2.9 Mbpd (almost entirely petroleum products), leaving net 
imports at 8.4 Mbpd.66 U.S. net imports have fallen by 4.1 Mbpd or 33% since they peaked in 
2005 as a result of lower total oil consumption and higher domestic production. Some of this 
decline could be mitigated in the near term as oil demand recovers from the recession. However, 
there is increasing sentiment among forecasters that U.S. oil imports have passed their high water 
mark already and may remain relatively flat or fall in the foreseeable future.67 
Among the largest sources of U.S. gross oil imports are Canada (2.7 Mbpd), the Persian Gulf (1.9 
Mbpd), Mexico (1.2 Mbpd), and Venezuela (0.9 Mbpd). Imports from the latter two sources have 
                                                 
60 TransCanada Keystone Pipeline, L.P., September 19, 2008, pp. 6-8. 
61 On February 7, 2012, the House Energy and Committee rejected an amendment to H.R. 3548 offered by 
Representative Edward Markey containing similar export restrictions. 
62 This is the case unless the oil is stranded due to transport bottlenecks. Ironically, the bottleneck for crude oil flowing 
south from the Midwest to the Gulf Coast—which Keystone XL would help alleviate—helped insulate Midwestern 
crude oil prices from the impacts of unrest in the Middle East and North Africa. However, as is discussed below, this 
may have benefited Midwestern refiners but probably did not significantly reduce costs for U.S. consumers.  
63 For more about this, see CRS Report R41683, Middle East and North Africa Unrest: Implications for Oil and 
Natural Gas Markets, by Michael Ratner. 
64 For a primer on the oil market, see CRS Video Brief Introduction to the Oil Market, at http://www.crs.gov/analysis/
Pages/WVB00002.aspx.  
65 All data in this section are from the U.S. Energy Information Administration’s (EIA’s) Petroleum & Other Liquids 
(http://www.eia.gov/petroleum/data.cfm), International Energy Statistics (http://tonto.eia.doe.gov/cfapps/ipdbproject/
IEDIndex3.cfm), and the Short Term Energy Outlook (http://www.eia.gov/forecasts/steo/). 
66 For context, the United States consumed 18.8 Mbpd in 2011, more than 20% of the world’s oil market. Net imports 
are gross or total imports less total exports. This section will focus on gross imports, though it should be noted that 
among U.S. petroleum exports about 0.2 Mbpd of petroleum products go to Canada and 0.4 Mbpd to Mexico. 
67 For more analysis, see CRS Report R42465, U.S. Oil Imports and Exports, by Robert Pirog. 
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Keystone XL Pipeline Project: Key Issues 
 
decreased in recent years in part due to lower need for imports described above and in part due to 
developments in those countries. Mexican production has been falling since 2004 because new oil 
developments have not been able to offset depletion at Mexico’s giant Cantarell field. Imports 
from Venezuela, another key source of U.S. imports, have also fallen. Venezuelan production 
never fully recovered after a strike at its national oil company, Petróleos de Venezuela, in 2002-
2003. Venezuelan production today is nearly 1 Mbpd less than that achieved in 2001. In recent 
years, Venezuela has also been trying to diversify business away from the United States, for 
example, by increasing exports to China.68 
Meanwhile, Canadian production and exports to the United States have increased, primarily due 
to growing output from the oil sands in western Canada. Energy markets in the United States and 
Canada are well integrated by pipeline infrastructure; nearly all Canadian energy exports go to the 
United States.69 Canadian oil production has increased about 0.2 Mbpd since 2005 and exports to 
the United States have increased by 0.5 Mbpd (see Figure 3).70 Some expect Canadian oil 
production to grow by nearly 2 Mbpd by 2025 due to increased output from the oil sands.71  
Figure 3. Gross U.S. Oil Imports by Major Sources  
Average annual imports in Mbpd 
14
12
10
8
Rest of World
6
Other OPEC
4
Persian Gulf OPEC
2
Mexico
Canada
0
1
95
7
99
1
03
5
09
1
199 1993 19
199 19
200 20
200 2007 20
201
 
Source: U.S. Energy Information Administration, Petroleum & Other Liquids: U.S. Imports by 
Country of Origin, March 19, 2012. http://www.eia.gov/petroleum/data.cfm#imports. 
                                                 
68 U.S. Energy Information Administration, “Country Analysis Brief: Venezuela,” February 2010, 
http://www.eia.doe.gov/emeu/cabs/Venezuela/Oil.html. 
69 For further analysis of U.S.-Canada energy trade, see CRS Report R41875, The U.S.-Canada Energy Relationship: 
Joined at the Well, by Paul W. Parfomak and Michael Ratner. 
70 As in the United States, Canadian consumption fell due to economic downturn. This allowed the increment in exports 
to be higher than the increment in production.  
71 Canadian Association of Petroleum Producers (CAPP), Crude Oil: Forecast, Markets, and Pipelines, June 2011, p. 
2, http://www.capp.ca/forecast/Pages/default.aspx. 
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Keystone XL Pipeline Project: Key Issues 
 
Oil Sands, Keystone XL, and the U.S. Oil Market 
Oil sands (also referred to as tar sands) are a mixture of clay, sand, water, and heavy black 
viscous oil known as bitumen. Oil sands require more processing than conventional crude oil. Oil 
sands are processed to extract the bitumen, which can then be sent to refineries in one of two 
forms. Bitumen can be upgraded into “syncrude,” a light crude that is suitable for pipeline 
transport and is relatively easy to refine. Alternatively, bitumen can be blended with lighter 
hydrocarbons to form a heavy crude (diluted bitumen or “dilbit”) that can be transported by 
pipeline. The bulk of oil sands supply growth is expected to be in the form of the latter.72  
Most oil sands imports into the United States currently go to the Midwest, where refineries have 
been investing in complex refining capacity to process growing volumes of heavy Canadian 
crude.73 The U.S. Gulf Coast region already has a large amount of complex refining capacity and 
is well suited for processing Canadian heavy crude oil. Gulf Coast refiners currently process 
heavy crudes from Venezuela, Mexico, and elsewhere. Complex refineries in the Gulf Coast may 
be best equipped to handle a large increase of heavy oil sands crude, though they may still need to 
adjust processes and make new capital investments in equipment to accommodate particular 
crudes’ characteristics,74 especially if the new Canadian crudes will be used in large amounts.75 
There are 58 refineries in the Gulf Coast region (potentially served by the proposed Gulf Coast 
Project) that could process heavy crude oil similar in composition to the oil that Keystone XL 
pipeline would carry.76  
Oil production from the oil sands is increasing, as is production from the Bakken and other areas 
of the U.S. Midwest.77 Transport options to carry crude from the Midwest to the Gulf Coast are 
limited. (In the past, crude oil had been shipped up from the Gulf Coast to Midwestern refineries.) 
The resulting abundance of crude oil in the Midwest has driven down crude oil prices in that 
region relative to Gulf Coast and international crude markets. Midwestern refiners benefit from 
the lower cost of crude, but it does not translate to substantially lower consumer prices for 
gasoline or other products in the region. The Midwest still brings in refined products from the 
Gulf Coast, which keeps refined products prices in line with national and international levels.78  
Oil sands producers are interested in Keystone XL because it would expand their market reach 
into the Gulf Coast. The Gulf Coast region holds half of U.S. refining capacity, including a 
substantial amount of technologically advanced capacity capable of processing heavy sour crudes 
                                                 
72 CAPP, 2011, p. 7. 
73 CAPP, 2011, p. 13. According to CAPP, refineries adding capacity to process more heavy oil in the Midwest include 
those in Roxana, IL; Whiting, IN, and Detroit, MI.  
74 Baker Hughes, Planning Ahead for Effective Canadian Crude Processing, Baker Petrolite White Paper, 2010, 
http://www.bakerhughes.com/assets/media/whitepapers/4c2a3c8ffa7e1c3c7400001d/file/28271-
canadian_crudeoil_update_whitepaper_06-10.pdf.pdf&fs=1497549. 
75 For a description of which units refineries may need to add (or have added) to be able to process more Canadian oil 
sands supply, see Praveen Gunaseelan and Christopher Buehler, “Changing US Crude Imports Are Driving Refinery 
Upgrades,” Oil and Gas Journal, August 10, 2009. 
76 TransCanada Keystone Pipeline, L.P., May 2012 Presidential Permit application submitted to the U.S. Department of 
State (see footnote 13), p. 14. 
77 See increased U.S. crude oil production in the Midwest under the PADD2 heading at the following source: Energy 
Information Administration, U.S. Department of Energy, Crude Oil Production (by PADD), Petroleum & Other 
Liquids, http://www.eia.gov/dnav/pet/pet_crd_crpdn_adc_mbblpd_a.htm. 
78 Adjusted for transport costs and other regional differences.  
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Keystone XL Pipeline Project: Key Issues 
 
in large volumes. Reaching a larger market and one with more advanced refining capacity could 
increase the price these producers receive for their crude. For their part, Gulf Coast refiners are 
interested in the Keystone XL pipeline because it increases the supply of heavy sour crude in the 
Gulf Coast region, potentially bringing down their input costs relative to the options they 
currently have available. Canadian Natural Resources Limited, an oil sands producer, and Valero 
Energy Corporation, a large U.S. refiner, are among those that contracted for shipping capacity on 
the Keystone XL pipeline. 
With expanded pipeline capacity extending to the U.S. Gulf Coast, Canadian oil sands crude may 
compete with other heavy crudes such as those from Mexico, Venezuela, and elsewhere.79 It is 
difficult to predict precisely how this competition will play out, but it may take place through 
shifting discounts or premiums on crude oils from various sources.80 It may be possible for 
Canadian oil supplies to effectively “push out” waterborne shipments from other countries, 
although this depends on a wide range of market conditions. Waterborne crudes may more easily 
go to other destinations than Canadian crudes, though like Canadian crudes they can be tied to 
specialized refining capacity, as is true for Venezuelan heavy crudes.  
There is concern that increased supply of crude to the Gulf Coast may result in larger petroleum 
product exports rather than contributing to lower domestic fuel cost. Although the United States is 
a net importer of oil and petroleum products, it does export some petroleum products. U.S. 
petroleum product exports rose when domestic demand declined in the wake of the recession 
while foreign demand for certain fuels, such as diesel, remained relatively robust. Issues around 
potential export of Canadian crude oil carried on Keystone XL or export of products made from 
that crude oil are addressed in CRS Report R42465, U.S. Oil Imports and Exports, by Robert 
Pirog. 
If Keystone XL secures growing oil sands output for the United States, it could push out seaborne 
crudes from elsewhere, regardless of where the product is ultimately sold. If the absence of the 
pipeline encourages Canadian oil sands producers and pipeline companies to find an alternate 
export route through the Canadian West Coast, Canadian supplies may displace heavy oil supplies 
in other markets and potentially allow relatively more overseas imports coming into the Gulf 
Coast. This possibility is discussed further below.  
It should be noted that Keystone XL aims to alleviate two potential bottlenecks in the pipeline 
transportation system: Between Western Canada and the United States, and between the U.S. 
Midwest and the Gulf Coast. Existing pipelines between Canada and the United States have spare 
capacity to carry rising Canadian production for the time being. According to some estimates, 
additional capacity, such as Keystone XL, may not be needed until 2019.81 The latter bottleneck, 
between the Midwest and the Gulf Coast, is already at capacity and, as described above, has 
resulted in a discount for crude oil in the Midwest (though not for petroleum products). The Gulf 
Coast Pipeline Project, the lower leg of originally proposed Keystone XL pipeline, would address 
this second bottleneck and help alleviate the discount for Midwestern crudes.  
                                                 
79 Center for Energy Economics and Bureau of Economic Geology, Overview of the Alberta Oil Sands, University of 
Texas at Austin, 2006, p. 16, http://www.beg.utexas.edu/energyecon/documents/overview_of_alberta_oil_sands.pdf. 
80 For more about the U.S. refining system, see CRS Report R41478, The U.S. Oil Refining Industry: Background in 
Changing Markets and Fuel Policies, by Anthony Andrews et al. 
81 Testimony of Jim Burkhard, U.S. Congress, Senate Committee on Energy and Natural Resources, US and Global 
Energy Outlook for 2012, 112th Cong., 2nd sess., January 31, 2012. 
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Other Pipeline Projects 
Apart from Keystone XL, several other pipeline proposals could help carry growing Canadian 
crude oil supplies to the U.S. Gulf Coast. On October 16, 2011, Enbridge announced it would 
purchase ConocoPhillips’ share of the Seaway pipeline and reverse its direction to bring crude oil 
from the Midwest to the Gulf Coast. ConocoPhillips had kept the pipeline running northward to 
serve its refinery in Ponca City, OK. However, the glut of oil in the Midwest had resulted in the 
pipeline running at low volumes. Nonetheless, ConocoPhillips had been uninterested in reversing 
the pipeline. ConocoPhillips, which is spinning off its refining business,82 sold its share of 
Seaway to Enbridge. Enbridge and Seaway shareholder Enterprise Products Partners L.P. reversed 
the direction of crude oil flows on the Seaway pipeline to enable it to transport oil from Cushing, 
OK, to the U.S. Gulf Coast. The pipeline began running southward at an initial capacity of 
150,000 bpd in 2012, with capacity expected to increase to 400,000 bpd in 2013. The reversal and 
expansion are expected to reduce the glut of crude oil in the Midwest and reconnect Midwestern 
crude prices to global prices (driving the U.S. Benchmark West Texas Intermediate crude 
higher).83  
Prior to the Seaway sale, Enbridge had reported significant commitments for two new pipeline 
projects: Flanagan South, which would carry oil from Illinois to Oklahoma, and Wrangler, which 
would carry oil from Oklahoma to Texas.84 According to Enbridge, the project would duplicate 
existing routes and would not cross an international border, so it would not require a Presidential 
Permit. Enbridge already has cross border pipeline capacity connecting Alberta to Illinois. 
However, according to press reports, Wrangler has been canceled in light of the Seaway purchase 
and reversal.85 Enbridge is moving forward with the Flanagan South project, which will have an 
initial capacity of about 600,000 bpd and run alongside Enbridge’s existing Spearhead pipeline 
(see Figure 4).86 Like Keystone XL/Gulf Coast Project, Flanagan South and a southbound 
Seaway may facilitate increased flow of Canadian crude to the U.S. Gulf Coast. 
In February 2013, Enbridge also announced a proposal to convert segments of existing natural 
gas pipeline owned by Trunkline Gas Company to carry crude oil from western Canada and North 
Dakota to refineries in the eastern Gulf of Mexico. The pipeline conversion could potentially 
carry up to 660,000 bpd from the market hub at Patoka, IL, more than 700 miles to St. James, 
LA.87 
                                                 
82 ConocoPhillips, “ConocoPhillips Pursuing Plan to Separate into Two Stand-Alone, Publicly Traded Companies,” 
press release, July 14, 2011, http://www.conocophillips.com/EN/newsroom/news_releases/2011news/Pages/07-14-
2011.aspx. 
83 Jenny Gross, “NYMEX Oil Gets Boost From Pipeline Reversal,” Wall Street Journal, April 22, 2012.  
84 Bradley Olson, “Enbridge Pursuing Alternative to Transcanada’s Keystone XL,” Bloomberg, November 9, 2011. 
85 Ben Lefebvre, “Enterprise Products Cancels Wrangler Pipeline,” Dow Jones Newswires, November 16, 2011. 
86 Enbridge, “Flanagan South Project Fact Sheet,” April 1, 2012, http://www.enbridge.com/
FlanaganSouthPipeline.aspx. 
87 Enbridge, “Enbridge and Energy Transfer Join to Provide Crude Oil Pipeline Access to Eastern Gulf Coast Market,” 
press release, February 15, 2013. 
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Keystone XL Pipeline Project: Key Issues 
 
Figure 4. Proposed Enbridge Flanagan South Pipeline Route 
 
Source: Enbridge, “Flanagan South Project Fact Sheet,” April 1, 2012, 
http://www.enbridge.com/FlanaganSouthPipeline.aspx. 
Rail Transportation 
While the oil industry has been making substantial investments in pipeline capacity to relieve 
transportation bottlenecks for Canadian crudes, there has also been a substantial increase in oil 
transportation from the region by rail. As the State Department’s 2013 DEIS for the Keystone XL 
project states: 
In the past 2 years, there has been exponential growth in the use of rail to transport crude oil 
throughout North America, primarily originating from the Bakken in North Dakota and 
Montana, but also increasingly utilized in other production areas, including the [Western 
Canadian Sedimentary Basin]. Because of the flexibility of rail delivery points, once loaded 
onto trains the crude oil could be delivered to refineries, terminals, and/or port facilities 
throughout North America, including the Gulf Coast area.88 
Consistent with this view, both Canadian National Railway and Canadian Pacific Railway 
reportedly have long been pursuing a “pipeline on rails” business strategy, including new track 
investments, to move Canadian crudes to new markets throughout North America.89 While the 
potential volumes associated with rail transportation of crude would likely be lower than pipeline 
                                                 
88 U.S. Department of State, March 2013, Draft EIS, Section 5.1, “No Action Alternatives.” 
89 Nathan Vanderklippe, “CN, CP Push for a ‘Pipeline on Rails,’” The Globe and Mail, February 7, 2011. 
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Keystone XL Pipeline Project: Key Issues 
 
volumes, they could still be significant. Increasing cross-border movements of crude oil by rail 
does not require State Department approval, so such an approach seeks to avoid regulatory 
delays. As rail volumes have increased, however, some policymakers have expressed concern 
about the potential safety of crude transport by rail compared to pipelines.90 
Canadian Oil to East and West Coast Markets 
There are proposals to increase the capacity for oil from Alberta to reach the Canadian east and 
west coast. Currently, nearly all of Canada’s oil exports go to the United States, mostly through 
north-south pipelines. Only one major oil pipeline extends from Alberta to Canada’s west coast: 
the Trans Mountain Pipeline, which is owned by Houston-based Kinder Morgan and has a 
capacity of 300,000 bpd. Some of the oil from the Trans Mountain Pipeline is loaded onto tankers 
and shipped from Vancouver. Nearly all of the quantities shipped by sea go to the United States, 
with a small amount going to China and other Asian countries.91 Proposals for additional east and 
westbound capacity include the following. 
•  Kinder Morgan has plans to expand the Trans Mountain Pipeline to 850,000 bpd 
by 2017, more than doubling its existing capacity, and expanding west coast 
shipping facilities.92 The expansion has received the necessary commitments 
from parties interested in shipping additional crude volumes. Some shippers are 
interested in using the additional capacity to export more Canadian crude oil to 
Asia. Kinder Morgan still needs regulatory approvals from Canadian authorities 
and is working to gain the support of stakeholders.93 There is some opposition to 
the project, including from groups concerned about additional tanker traffic near 
Vancouver and potential oil spill risks.94  
•  Enbridge has proposed a new pipeline: the Northern Gateway project would have 
a 525,000 bpd capacity to send oil from Edmonton to Kitimat, British 
Columbia.95 However, Northern Gateway faces opposition from groups including 
some First Nations communities and environmental groups.96  
•  Several projects are considering moving oil east rather than to the west coast. 
According to reports, TransCanada is considering a pipeline project sending oil 
east from Alberta to Quebec and New Brunswick, which could also carry crude 
bound for export.97 Enbridge is also interested in expanding eastbound capacity 
                                                 
90 See, for example, David Sheppard and Jeffrey Jones, “Train Hauling Canadian Oil Derails in Minnesota,” Reuters, 
March 27, 2013. 
91 According to the Global Trade Atlas, about 0.5% of Canadian crude exports went to China in 2011 (accessed April 
25, 2012).  
92 Christopher Smith, “KMEP Advances Trans Moutain Crude Pipeline Expansion,” Oil & Gas Journal, April 6, 2012.  
93 David Ebner and Justine Hunter, “U.S. Company Plans Billion-Dollar Expansion of Trans Mountain Pipeline,” The 
Global and Mail, April 13, 2012.  
94 Jeff Lee, “Vancouver Council, Park Board to Formally Oppose Kinder Morgan Pipeline Expansion,” Vancouver Sun, 
April 24, 2012. 
95 Enbridge, “Northern Gateway at a Glance,” press release, 2011, http://www.northerngateway.ca/project-info/
northern-gateway-at-a-glance. The project would also include a pipeline to allow the import of 193,000 bpd of 
condensate, a light hydrocarbon that can be blended with bitumen to allow pipeline transport. 
96 “Enbridge Pipeline and Tanker Opposition Mounts as Risks Multiply,” Marketwire, March 13, 2012. 
97 Nathan Vanderklippe and Shawn McCarthy, “TransCanada Looks East as Gateway Pipeline Gets Bogged Down,” 
The Globe and Mail, March 22, 2012. 
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Keystone XL Pipeline Project: Key Issues 
 
by reversing its Line 9 Pipeline.98 Some suggest this could potentially lead to oil 
sands crude traveling east, through Montreal and then through another pipeline to 
Portland, ME, from which point it could be exported.99 As with other pipeline 
projects, these also face opposition from environmental groups concerned about 
oil spill risks and/or generally opposed to oil sands development.  
These projects reflect anticipated growth of western Canadian oil production and an interest by 
Canadian oil producers to diversify their available markets beyond U.S. customers, including to 
reach rapidly growing Asian oil demand. Proposals have received criticism from 
environmentalists. Because it would require construction of a completely new pipeline, Northern 
Gateway in particular has been criticized by some environmental and First Nations groups.100  
Canadian interests assert that Canadian oil sales to Asian markets, where oil demand is growing 
rapidly, are more likely if greater shipments to the United States are not possible.101 A study 
commissioned by the U.S. Department of Energy suggested that  
if pipeline projects to the BC [British Columbia] coast are built, they are likely to be utilized. 
This is because of the relatively short marine distances to major northeast Asia markets, 
future expected growth there in refining capacity and increasing ownership interests by 
Chinese companies especially in oil sands production. Such increased capacity would alter 
global crude trade patterns. Western Canadian Sedimentary Basin (WCSB) crudes would be 
“lost” from the USA, going instead to Asia. There they would displace the world’s balancing 
crude oils, Middle Eastern and African predominantly OPEC grades, which would in turn 
move to the USA. The net effect would be substantially higher U.S. dependency on crude 
oils from those sources versus scenarios where capacity to move WCSB crudes to Asia was 
limited.102 
Economic Impact of the Pipeline 
In addition to supply diversity arguments, some Keystone XL pipeline proponents support the 
project based on economic benefits associated with expanding U.S. pipeline infrastructure. A 
recent study by the Energy Policy Research Foundation, for example, concludes that “the 
Keystone expansion would provide net economic benefits from improved efficiencies in both the 
transportation and processing of crude oil of $100 million-$600 million annually, in addition to an 
immediate boost in construction employment.”103 A 2009 report from the Canadian Energy 
Research Institute (CERI) commissioned by the American Petroleum Institute similarly 
concludes that 
                                                 
98 “Enbridge Pipelines Inc. - Line 9 Reversal Phase I Project (OH-005-2011),” (Project Application), National Energy 
Board (Government of Canada), http://www.neb-one.gc.ca/clf-nsi/rthnb/pplctnsbfrthnb/nbrdgln9phs1/nbrdgln9phs1-
eng.html. 
99 Matt Dodge, “Court Decision Affects South Portland-Montreal Pipeline,” Maine Biz, April 3, 2012.  
100 Derrick Penner, “Opposition to Enbridge Northern Gateway pipeline grows,” Vancouver Sun, December 2, 2010. 
101 Edward Welsch, “TransCanada: Oil Sands Exports Will Go to Asia if Blocked in U.S.,” Dow Jones Newswires, 
June 30, 2010.  
102 EnSys Energy & Systems, Inc., Keystone XL Assessment: Final Report, Prepared for the U.S. Department of 
Energy, Office of Policy & International Affairs, December 23, 2010, p. 118. 
103 Energy Policy Research Foundation, Inc., The Value of the Canadian Oil Sands (….to the United States): An 
Assessment of the Keystone Proposal to Expand Oil Sands Shipments to Gulf Coast Refiners, Washington, DC, 
November 29, 2010, p. 2, http://www.eprinc.org/pdf/oilsandsvalue.pdf. 
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As investment and production in oil sands ramps up in Canada, the pace of economic activity 
quickens and demand for US goods and services increase rapidly, resulting in an estimated 
343 thousand new US jobs between 2011 and 2015. Demand for U.S. goods and services 
continues to climb throughout the period, adding an estimated $34 billion to US GDP in 
2015, $40.4 billion in 2020, and $42.2 billion in 2025.104 
These CERI estimates apply to the entire oil sands industry, however, not only the Keystone XL 
project, and they are derived from a proprietary economic analysis which has not been subject to 
external review. Some stakeholders point to State Department and other studies reporting much 
lower anticipated economic benefits.105 With the separation of the Gulf Coast Project from the 
northern segment of the original proposal, the potential economic impact of the reconfigured 
Keystone XL project has clearly changed. Consequently, it is difficult to determine what specific 
economic and employment impacts may ultimately be attributable to the Keystone XL pipeline. 
Nonetheless, given the physical scale of the project, it could be expected to increase employment 
and investment at least during construction. 
Lifecycle Greenhouse Gas Emissions 
Oil production from oil sands is controversial because it has significant environmental impacts, 
including emissions of greenhouse gases during extraction and processing, disturbance of mined 
land, and impacts on wildlife and water quality.106 Because bitumen in oil sands cannot be 
pumped from a conventional well, it must be mined, usually using strip mining or open pit 
techniques, or the oil can be extracted with underground heating methods.107 Large amounts of 
water and natural gas are also required (for heating) during the extraction process.108 The 
magnitude of the environmental impacts of oil sands production, in absolute terms and compared 
to conventional oil production, has been the subject of numerous, and sometimes conflicting, 
studies and policy papers.109 Some stakeholders who object to oil sands projects oppose the 
Keystone XL pipeline because it expands access to new markets for the oil produced by those 
projects, thereby encouraging what they consider to be further environmentally destructive oil 
sands development. As discussed earlier, however, if oil sands production can be diverted to other 
markets (e.g., Asia), preventing the Keystone XL project may not necessarily limit oil sands 
development.110 
                                                 
104 Canadian Energy Research Institute, The Impacts of Canadian Oil Sands Development on the United States’ 
Economy, Final Report, Calgary, Alberta, October 2009, p. vii. 
105 See, for example, Cornell University Global Labor Institute, Pipe Dreams? Jobs Gained, Jobs Lost by the 
Construction of Keystone XL, September 28, 2011; National Wildlife Federation, “TransCanada Exaggerating Jobs 
Claims for Keystone XL,” November 9, 2010, http://www.dirtyoilsands.org/files/Keystone_XL_Jobs_11-09-10.pdf. 
106 For more analysis of oil sands and their environmental impacts, see CRS Report RL34258, North American Oil 
Sands: History of Development, Prospects for the Future, by Marc Humphries.  
107 U.S. Bureau of Land Management, “About Tar Sands,” web page, January 11, 2011, http://ostseis.anl.gov/guide/
tarsands/index.cfm. 
108 Cecilia Jamasmie, “The Challenges and Potential of Canada’s Oil Sands,” Mining, September-October 2010, pp. 
7-8. 
109 For an example of contrasting views, see IHS CERA Inc., Oil Sands, Greenhouse Gases, and US Oil Supply, 
Getting the Numbers Right, 2010; and Natural Resources Defense Council, “Setting the Record Straight: Lifecycle 
Emissions of Tar Sands,” November 2010. 
110 For more analysis of oil sands, including the environmental effects of its extraction, see CRS Report RL34258, 
North American Oil Sands: History of Development, Prospects for the Future, by Marc Humphries. 
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Some stakeholders object to the Keystone XL pipeline because it would increase U.S. supplies of 
oil, and thereby perpetuate the nation’s dependence on imported fossil fuels and increase carbon 
emissions from the transportation sector.111 Acknowledging this concern, in a public forum on 
October 20, 2010, Secretary of State Clinton reportedly remarked that “we’re either going to be 
dependent on dirty oil from the [Persian] Gulf or dirty oil from Canada … until we can get our act 
together as a country and figure out that clean, renewable energy is in both our economic interests 
and the interests of our planet.”112 Critics of the State Department’s draft and supplemental draft 
EIS assert that the environmental review overlooks the pipeline project’s overall impact on 
greenhouse gas emissions, for example, from the extraction and refining processes. To address 
those potential emissions, EPA recommended that the final EIS include discussion of mitigation 
approaches for greenhouse gas emissions from extraction activities that are either currently used 
or could be employed to help lower lifecycle greenhouse gas emissions.113 However, others have 
argued that whether the Keystone XL Pipeline is constructed would have little bearing on 
greenhouse gas emissions as there are likely to be other export routes available for Canadian oil 
sands crude, and therefore, the same crude oils would still be transported and refined, albeit in 
different locations.114 For further analysis of greenhouse gas emissions associated with the 
Canadian oil sands, see CRS Report R42537, Canadian Oil Sands: Life-Cycle Assessments of 
Greenhouse Gas Emissions, by Richard K. Lattanzio. 
Private Land Use and Oil Spill Impacts 
For the proposed Keystone XL Project, approximately 88% of the land affected by pipeline 
construction and operation would be privately owned, with the remaining 12% primarily state and 
federal land.115 Private land uses along the proposed pipeline routes are primarily agricultural—
farmers and cattle ranchers.  
The pipeline’s construction and continued operation would involve a 50-foot-wide permanent 
right-of-way along the length of the pipeline. Keystone agreed to compensate landowners for 
losses on a case-by-case basis. However, a concern among landowners and communities along 
the route is the potential for their land or water (used for drinking, irrigation, or recreation) to be 
contaminated by an accidental release (spill) of oil. That concern is heightened in areas where the 
pipeline will be located near or would cross water or is in a remote location. 
A primary environmental concern of any oil pipeline is the risk of a release, leak, or spill of oil. A 
release is a loss of integrity of a pipeline (from the mainline or other components); a leak is a 
release over time; and a spill is the liquid volume of a leak that escapes any containment system 
and enters the environment.116 In estimating potential environmental impacts, several factors will 
                                                 
111 See, for example: Natural Resources Defense Council, Tar Sands Invasion: How Dirty and Expensive Oil from 
Canada Threatens America’s New Energy Economy, May 2010. 
112 See Secretary of State Hillary Clinton’s “Remarks on Innovation and American Leadership to the Commonwealth 
Club,” San Francisco, CA, October 15, 2010, available at http://www.state.gov/secretary/rm/2010/10/149542.htm. 
113 See EPA’s July 16, 2010, letter to the U.S. Department of State rating the supplemental EIS for the Keystone XL 
pipeline project, available at http://yosemite.epa.gov/oeca/webeis.nsf/%28PDFView%29/20100126/$file/
20100126.PDF. Discussion of the analysis of GHG emissions is included on pp. 3-4. 
114 EnSys Energy & Systems 2010, p. 116. 
115 U.S. Department of State, March 2013, Draft EIS: “Section 4.9, Land Use, Recreation, and Visual Resources,” p. 
4.9-2. 
116 U.S. Department of State, March 2013, Draft EIS: “Executive Summary,” p. ES-16. 
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be important—including the size and location of the release, leak, or spill, and how quickly it is 
remediated. 
A release of oil on land would not necessarily result in surface or groundwater contamination. 
The potential for a spill to reach water would depend on factors such its proximity to a water 
source (e.g., on or near a creek or stream or located on land where the groundwater table is close 
to the surface) and the characteristics of the environment into which the crude oil is released (e.g., 
porous underlying soils), and the volume of the spill, the duration of the release, and the viscosity 
and density of the crude oil.  
The size of potential spills and the type of oil that would likely be released from the Keystone XL 
pipeline have been issues of concern to opponents of the project. In its July 16, 2010 comments 
on the draft EIS for the Keystone XL Project, EPA expressed particular concern over the potential 
adverse impacts to surface and ground water from pipeline leaks or spills. That concern stemmed 
from two areas—the toxicity of chemical diluents that may be used to allow bitumen to be 
transported by pipeline and the lack of risk assessment for potential “serious or significant spills,” 
including an evaluation of spill response procedures in the wake of such a spill. 
Concerns reflected in EPA’s letter were realized 10 days later when the Enbridge Energy Partners’ 
Alberta Pipeline ruptured near Marshall, MI. The resulting spill released dilbit crude into a 
tributary creek of the Kalamazoo River and traveled approximately 40 miles downstream in the 
Kalamazoo River. Initially estimated by Enbridge as a release of approximately 800,000 gallons 
of crude, EPA subsequently estimated that over 1.1 million gallons were released. The spill 
resulted in over 220 areas of moderate-to-heavy contamination, including over 200 acres of 
submerged oil on the river bottom and over 300 solidified oil deposits.117 Enbridge estimates that 
cleanup will cost approximately $700 million. 
The Enbridge spill highlighted several issues of concern among environmental groups and 
communities along the pipeline route—in particular, the nature of the dilbit crude likely carried 
by the Keystone XL pipeline. The dilbit crude in the Enbridge spill had been diluted with benzene 
and other hazardous constituents. Following the spill, high levels of benzene in the air prompted 
the issuance of voluntary evacuation of residents in the area. Concern over the presence of 
similarly toxic constituents, particularly the degree to which the level of toxic constituents may be 
unknown at the time of a release, has been an ongoing concern among environmental and 
community groups.  
The Enbridge spill was considered a “very large spill” and not necessarily one that would likely 
occur along the Keystone XL pipeline route. However, in its first year of operation, 
TransCanada’s Keystone pipeline experienced 14 spills. Although mostly minor spills, one spill at 
the Ludden, ND, pump station resulted in the release of 21,000 gallons of oil. Like the Enbridge 
release, that release was first reported by local citizens, not as a result of the Keystone’s release 
detection equipment. A March 29, 2013, release of oil sands crude from an Exxon Mobil pipeline 
in Mayflower, AR, has continued to draw attention to the risk of potential spills from crude oil 
pipelines.118 These incidents have made pipeline opponents concerned that such spills may be 
                                                 
117 For more information see EPA’s regarding the response to the Enbridge oil spill at http://www.epa.gov/
enbridgespill/. 
118 Arkansas Department of Environmental Quality, “Mayflower Oil Spill Response,” fact sheet, March 30, 2013, 
http://www.adeq.state.ar.us/hazwaste/mayflower_oil_spill_2013/files/mayflower_pipeline-_fact_sheet.pdf. 
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significant and that, absent a witness to a spill, a leak in a remote area could potentially go 
undetected for a long period.  
Also as illustrated in the aftermath of the Enbridge spill, cleanup of bitumen crude presents 
certain challenges. Dilbit is a relatively heavy crude oil mixture compared to other crude oils. In 
general, heavier oils are more persistent and present greater technical challenges in removal after 
a spill compared to lighter oils. Almost two years after the Enbridge spill, cleanup efforts 
continue. Since the spill, public access to 39 miles of the river system was banned to protect 
public health and safety. The first three-mile segment of river reopened to the public on April 27, 
2012. Elements of the cleanup are expected to last until 2015. 
Regardless of design, construction, and safety measures, the Keystone XL pipeline will likely 
have some number of spills over the course of its operating life. The unique oil spill response 
efforts necessary for dilbit crude make an accurate assessment of potential oil spill risk 
particularly relevant when addressing concerns expressed by opponents to the Keystone XL 
pipeline. The need for more conclusive analysis of potential risks associated with the transport of 
dilbit crude was addressed, in part, in the Pipeline Safety, Regulatory Certainty, and Job Creation 
Act of 2011 (P.L. 112-90, enacted January 16, 2012). In particular, under Section 16, “Study of 
transportation of diluted bitumen,” the Secretary of Transportation is required to conduct an 
analysis to determine whether there is any increased risk of a release for pipeline facilities 
transporting diluted bitumen. In response to that directive, the PHMSA contracted with the 
National Academy of Sciences to conduct a full and independent study of this topic, which is not 
yet completed. For further analysis of environmental issues associated with the Keystone XL 
project, see CRS Report R42611, Oil Sands and the Keystone XL Pipeline: Background and 
Selected Environmental Issues, coordinated by Jonathan L. Ramseur. 
Issues with the Original Pipeline Route Across the Sand Hills 
In the process of examining factors necessary to determine whether the Presidential Permit for the 
original Keystone XL Project was in the national interest, the State Department decided that it 
needed to assess potential alternative pipeline routes that would avoid the Sand Hills region of 
Nebraska. Unique characteristics of the Sand Hills—including its high concentration of wetlands, 
extensive areas of very shallow groundwater, and its sensitive ecosystem—were identified as 
factors that resulted in increasing public concern over the proposed pipeline location. For these 
reasons, TransCanada announced it would work with the Nebraska DEQ to identify a potential 
pipeline route that would avoid the Sand Hills. New pipeline routes through Nebraska, identified 
in the 2013 draft EIS, reflect the work between TransCanada and Nebraska DEQ. 
To understand concerns about the potential environmental impacts of a pipeline crossing the Sand 
Hills (also referred to as the Sandhills), an understanding of the unique size and structure of the 
region is useful. The Sand Hills region is a 19,600 square mile sand dune formation stabilized by 
native grasslands that cover 95% of its surface. The surface is highly susceptible to wind erosion 
if the grassland is disturbed.119 Below its surface lie hundreds of feet of coarse sand and gravel. 
Essentially, the porous soil acts like a giant sponge that quickly absorbs precipitation, allowing 
very little to run off. In some areas, the water table reaches the land surface—a characteristic that 
creates lakes that dot the region as well as 1.3 million acres of wetlands. The loose, porous soil 
                                                 
119 For more information, see the Department of the Interior’s U.S. Fish and Wildlife Service web page on the Sand 
Hills at http://www.fws.gov/mountain-prairie/pfw/ne/ne4.htm.  
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and sensitivity to wind erosion have been factors contributing to a lack of development on the 
Sand Hills. As a result, the region contains the most intact natural habitat of the Great Plains of 
the United States. The porosity of the soil is also relevant because the Sand Hills sits atop the 
Ogallala Aquifer—one of the largest freshwater aquifer systems in the world.120 
The highly porous soil of the Sand Hills makes it a significant recharge zone in the northern 
Ogallala Aquifer. That is, the sandy, porous soil of the Sand Hills allows a significant amount of 
surface water to enter (recharge) the aquifer system. Water from the aquifer also accounts for a 
significant amount of water use—78% of the region’s public water, 83% of irrigation water in 
Nebraska, and 30% of water used in the United States for irrigation and agriculture. 
Potential impacts to the Ogallala Aquifer and the Sand Hills identified in the final EIS for 
TransCanada’s original permit application included groundwater contamination after an 
accidental spill or leak of crude oil during the construction or operation of the proposed pipeline. 
Along the preferred route of the originally proposed pipeline configuration, areas in the Sand 
Hills region were identified as locations where the water table may be close to the surface. The 
depth to groundwater was less than 10 feet for approximately 65 miles of the preferred pipeline 
route in Nebraska. Both the soil porosity and the close proximity of groundwater to the surface 
increase the potential that a release of oil from the pipeline could contaminate groundwater in the 
region.121  
On January 13, 2013, the Governor of Nebraska approved a proposed reroute of the Keystone XL 
pipeline through Nebraska.122 The new route alternatives proposed for the Nebraska section of the 
Keystone XL pipeline avoids the Sand Hills and certain areas nearby with similar soil properties.  
                                                 
120 The entire Ogallala Aquifer system stretches across eight states generally from north to south to include South 
Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas and underlies about 174,000 
square miles. 
121 Generally, a release of crude oil to land would not necessarily result in groundwater contamination. In addition to 
the depth from the land surface to groundwater and the characteristics of the environment into which the crude oil is 
released (e.g., characteristics of the underlying soils), the potential for crude oil to reach groundwater would depend on 
factors such as the volume of the spill, the duration of the release, and the viscosity and density of the crude oil.  
122 See U.S. Department of State, March 2013, Draft EIS: “Volume III. Appendix A. Governor Approval of the 
Keystone XL Project in Nebraska.” 
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Figure 5. Keystone XL Project—Pipeline Route in Nebraska 
Comparison of Currently and Previously Proposed Project Segments 
 
Source: State Department, March 2013, “Draft Supplemental 
Environmental Impact Statement for the Keystone XL Project: Executive 
Summary,” p. ES-7.  
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Appendix A. Presidential Permitting Authority123 
The executive branch has exercised permitting authority over the construction and operation of 
“pipelines, conveyor belts, and similar facilities for the exportation or importation of petroleum, 
petroleum products” and other products at least since the promulgation of Executive Order 11423 
in 1968.124 Executive Order 13337 amended this authority and the procedures associated with the 
review, but did not substantially alter the exercise of authority or the delegation to the Secretary 
of State in E.O. 11423.125 However, the source of the executive branch’s permitting authority is 
not entirely clear from the text of these Executive Orders. Generally, powers exercised by the 
executive branch are authorized by legislation or are inherent presidential powers based in the 
Constitution. E.O. 11423 makes no mention of any authority, and E.O. 13337 refers only to the 
“Constitution and the Laws of the United States of America, including Section 301 of title 3, 
United States Code.”126 Section 301 simply provides that the President is empowered to delegate 
authority to the head of any department or agency of the executive branch.  
The legitimacy of this permitting authority has been addressed by federal courts. In Sisseton v. 
United States Department of State, the plaintiff Tribes filed suit and asked the court to suspend or 
revoke the Presidential Permit issued under E.O. 13337 for the TransCanada Keystone 
Pipeline.127 The U.S. District Court for the District of South Dakota found that the plaintiffs 
lacked standing because they would be unable to prove their injury could be redressed by a 
favorable decision.128 The court determined that even if the plaintiff’s injury could be redressed, 
“the President would be free to disregard the court’s judgment,” as the case concerned the 
President’s “inherent Constitutional authority to conduct foreign policy,” as opposed to statutory 
authority granted to the President by Congress.129  
The court further found that even if the Tribes had standing, the issuance of the Presidential 
Permit was a presidential action, not an agency action subject to judicial review under the 
Administrative Procedure Act (APA).130 The court stated that the authority to regulate the cross-
border pipeline lies with either Congress or the President.131 The court found that “Congress has 
failed to create a federal regulatory scheme for the construction of oil pipelines, and has delegated 
this authority to the states. Therefore, the President has the sole authority to allow oil pipeline 
border crossings under his inherent constitutional authority to conduct foreign affairs.”132 The 
                                                 
123 For a more expansive treatment of this topic, see CRS Report R42124, Proposed Keystone XL Pipeline: Legal 
Issues, by Adam Vann, Kristina Alexander, and Kenneth R. Thomas. 
124 Providing for the performance of certain functions heretofore performed by the President with respect to certain 
facilities constructed and maintained on the borders of the United States, 33 Federal Register 11741, August 16, 1968. 
125 Issuance of Permits With Respect to Certain Energy-Related Facilities and Land Transportation Crossings on the 
International Boundaries of the United States, 69 Federal Register 25299, May 5, 2004. 
126 Ibid. 
127 659 F. Supp. 2d 1071, 1078 (D. S.D. 2009). 
128 Ibid. at 1078. 
129 Ibid. at 1078, 1078 n.5. 
130 See ibid. at 1080-81. 
131 Ibid. at 1081. 
132 Ibid.  
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President could delegate his permitting authority to the U.S. Department of State, but delegation 
did not transform the permit’s issuance into an agency action reviewable under the APA.133 
In Sierra Club v. Clinton,134 the plaintiff Sierra Club challenged the Secretary of State’s decision 
to issue a Presidential Permit authorizing the Alberta Clipper pipeline. Among the plaintiff’s 
claims was an allegation that issuance of the permit was unconstitutional because the President 
had no authority to issue the permits referenced in E.O. 13337 (in this case, for the importation of 
crude oil from Canada via pipeline).135 The defendant responded that the authority to issue 
Presidential Permits for these border-crossing facilities “does not derive from a delegation of 
congressional authority ... but rather from the President’s constitutional authority over foreign 
affairs and his authority as Commander in Chief.”136 The U.S. District Court for the District of 
Minnesota agreed, noting that the defendant’s assertion regarding the source of the President’s 
authority has been “well recognized” in a series of Attorney General opinions, as well as a 2009 
judicial opinion.137 The court also noted that these permits had been issued many times before and 
that “Congress has not attempted to exercise any exclusive authority over the permitting process. 
Congress’s inaction suggests that Congress has accepted the authority of the President to issue 
cross-border permits.”138 Based on the historical recognition of the President’s authority to issue 
these permits and Congress’s implied approval through inaction, the court found the Presidential 
Permit requirement for border facilities constitutional. 
                                                 
133 Ibid. at 1082. 
134 689 F.Supp.2d 1147 (D. Minn. 2010). 
135 Ibid. at 1162. 
136 Ibid. 
137 Ibid. at 1163 (citing 38 U.S. Atty Gen. 162 (1935); 30 U.S. Op. Atty. Gen. 217 (1913); 24 U.S. Op. Atty. Gen. 100; 
and Natural Resources Defense Council (NRDC) v. U.S. Department of State, 658 F.Supp.2d 105, 109 (D.D.C. 2009)). 
The court in NRDC held that the State Department’s issuance of a presidential permit under Executive Order 13337 
was not subject to judicial review under the Administrative Procedure Act for abuse of discretion because “the issuance 
of presidential permits is ultimately a presidential action.” 658 F. Supp. 2d at 109, 111-12. The court said that to allow 
judicial review of such decisions would raise separation of powers concerns. Ibid. at 111. 
138 Ibid.; see also Youngstown Sheet and Tube Co. v. Sawyer, 343 U.S. 579 (1952) (establishing a three-part test for 
analyzing the validity of presidential actions in relation to constitutional and congressional authority). 
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Appendix B. Details of the Initial NEPA Review 
The NEPA process for TransCanada’s 2008 Presidential Permit application for the Keystone XL 
pipeline project included several significant milestones (summarized in Table 1). These events, 
and resulting documents, will likely have varying degrees of influence over TransCanada’s 2012 
permit application. 
Draft EIS issued 
The State Department released its draft EIS for the proposed Keystone XL Pipeline project for 
public comment on April 16, 2010.139 The draft EIS identified TransCanada’s “preferred 
alternative” for the project as well as other alternatives considered. On July 16, 2010, EPA rated 
the draft EIS “Inadequate.”140 EPA found that potentially significant impacts were not evaluated 
and that the additional information and analysis needed was of such importance that the draft EIS 
would need to be formally revised and again made available for public review. Additional 
criticism of the State Department’s implementation of the NEPA process followed an October 21, 
2010, statement by Secretary Clinton that, while analysis of the project was not complete and a 
final decision had not been made, the State Department was “inclined to” approve the project.141 
Critics of the project, including some Members of Congress, stated that the Secretary’s statement 
appeared to prejudge its permit approval for the pipeline proposal as a foregone conclusion.142  
Supplemental Draft EIS Issued 
The State Department issued a supplemental draft EIS on April 15, 2011. In addition to 
addressing issues associated with EPA’s inadequacy rating, the supplemental draft EIS addressed 
comments received from other agencies and the public. On June 6, 2011, EPA sent a letter to the 
State Department that rated the supplemental draft EIS as having “Insufficient Information” and 
having “Environmental Objections” to the proposed action.143 EPA acknowledged that the State 
Department had “worked diligently” to develop additional information in response to EPA’s 
comments and the large number of other comments on the draft EIS. However, EPA believed that 
additional analysis needed to be included in the final EIS to fully respond to its earlier comments. 
                                                 
139 Documents submitted for the initial 2008 Presidential Permit application have now been archived by the State 
Department. Documents related to that original application are available at http://keystonepipeline-xl.state.gov/archive/
index.htm. 
140 U.S. Environmental Protection Agency’s July 16, 2010, letter to the U.S. Department of State commenting on the 
draft EIS for the Keystone XL project is available at http://yosemite.epa.gov/oeca/webeis.nsf/%28PDFView%29/
20100126/$file/20100126.PDF. 
141 See Secretary of State Hillary Clinton, “Remarks on Innovation and American Leadership to the Commonwealth 
Club,” San Francisco, CA, October 15, 2010, available at http://www.state.gov/secretary/rm/2010/10/149542.htm. The 
statement by Secretary Clinton was actually made in response to a question about the Alberta Clipper pipeline project 
which received a Presidential Permit from the State Department in 2009; a State Department spokesman later clarified 
that the Secretary was referring to the Keystone XL pipeline permit approval. 
142 For example, see the October 21, 2010, letter from Senator Mike Johanns to Secretary Clinton expressing his 
concern that her statement gave the appearance that approval of the pipeline was a foregone conclusion, 
http://johanns.senate.gov/public/?a=Files.Serve&File_id=8b090aa5-76fe-41ca-a674-ae9e37db8d36. 
143 U.S. Environmental Protection Agency’s June 6, 2011, letter to the U.S. Department of State commenting on the 
supplemental draft EIS for the Keystone XL project is available at http://yosemite.epa.gov/oeca/webeis.nsf/
%28PDFView%29/20110125/$file/20110125.PDF?OpenElement.  
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Among other items, EPA recommended that the State Department should do the following: 
improve the analysis of the potential oil spill risks, including additional analysis of other 
reasonable alternatives to the proposed pipeline route; provide additional analysis of potential oil 
spill impacts, health impacts, and environmental justice concerns to communities along the 
pipeline route and adjacent refineries; and improve its characterization of lifecycle greenhouse 
gas emissions associated with Canadian oil sands crude. 
In its June 6 letter to the State Department, EPA refers to agreements with the State Department 
that certain deficiencies identified in the supplemental draft EIS would be addressed in the final 
EIS. Further, in its conclusion, EPA stated that it would carefully review the final EIS to 
determine if it fully reflects those agreements and if measures to mitigate adverse environmental 
impacts are fully evaluated. 
Final EIS Issued 
On August 26, 2011, the State Department issued the final EIS for the proposed Keystone XL 
Pipeline. Among other elements of the final EIS, it identified various major pipeline route 
alternatives and an environmental analyses of potential impacts associated with those 
alternatives.144 
In October 2011, 14 Members of Congress wrote to the State Department’s Office of Inspector 
General requesting an investigation of the department’s handling of the EIS and national interest 
determination for the Keystone XL project.145 The request was prompted, in part, by press reports 
suggesting bias or potential conflicts of interest in the State Department’s hiring of an outside 
contractor to perform the EIS and in its communications with the pipeline’s developer, 
TransCanada.146 On November 4, the Inspector General’s Office (IG) announced that, in response 
to this request, it was initiating a special review “to determine to what extent the Department and 
all other parties involved complied with Federal laws and regulations relating to the Keystone XL 
pipeline permit process.”147 On February 9, 2012, the IG released its findings, reporting that the 
State Department “did not violate its role as an unbiased oversight agency,” among other specific 
findings generally supportive of the department’s Keystone XL permit review process.148 
Public Review and National Interest Determination  
Following the release of the Keystone XL project’s final EIS, a review period began to determine 
if the proposed project was in the national interest. As part of the process for the Keystone XL 
project, the State Department held public meetings in each of the six states through which the 
                                                 
144 Environmental analysis associated with pipeline project alternatives is provided in Volumes 1 and 2 of the final EIS.  
145 U.S. Senator Bernard Sanders, et al., Letter to The Honorable Harold W. Geisel, Office of Inspector General, U.S. 
Department of State, October 26, 2011. 
146 See. for example, Elisabeth Rosenthal and Dan Frosch, “Pipeline Review Is Faced with Question of Conflict,” New 
York Times, October 7, 2011. 
147 Harold W. Geisel, United States Department of State, Office of Inspector General, “Information Memo for Deputy 
Secretary Burns,” November 4, 2011, http://sanders.senate.gov/imo/media/doc/
Special%20Review%20Keystone%20XL%20Pipeline%20Nov%2020112.pdf. 
148 Harold W. Geisel, United States Department of State, Office of Inspector General, Special Review of the Keystone 
XL Pipeline Permit Process, AUD/SI-12-28, February 2012. 
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proposed pipeline would pass and in Washington, DC.149 The meetings were intended to give 
members of the public additional opportunity to voice their opinions on issues they thought 
should be taken into account in determining whether granting or denying the Presidential Permit 
would be in the national interest.150 During the review period, the State Department received input 
from state, local, and tribal officials as well as members of the public. 
After the public review period, the State Department issued a statement regarding the public 
comments and its response to those comments.151 The State Department stated that it received 
comments on a wide range of issues, including the Keystone XL project’s potential impact on 
jobs, pipeline safety, health concerns, the societal impact of the project, and oil extraction in 
Canada. Concern regarding the proposed pipeline route through the Sand Hills area of Nebraska 
was identified as one of the most common issues raised. Comments regarding that pipeline route 
were consistent with the environmental impacts identified in the final EIS with regard to the 
unique combination of characteristics of the Sand Hills region.  
In the final EIS, the preferred pipeline route through Nebraska would have been located entirely 
above the Ogallala Aquifer. Potential impacts to the Ogallala Aquifer and the Sand Hills 
identified in the final EIS include potential groundwater contamination after a release (e.g., a spill 
or leak from a hole or damaged portion of the pipeline) of crude oil during the construction or 
operation of the proposed pipeline. Both the soil porosity and the close proximity of groundwater 
to the surface increase the potential that a release of oil from the pipeline could contaminate 
groundwater in the region. 
During the public review period, the governor of Nebraska called a special session of the 
legislature to determine if siting legislation could be crafted and passed for pipeline routing in 
Nebraska. Facing the prospect of new state pipeline siting regulations applicable to the Sand 
Hills, together with the concern about the Keystone XL pipeline’s specific “preferred” route, the 
State Department announced that it would require additional information about alternative 
pipeline routes avoiding the environmentally sensitive Sand Hills area in Nebraska before moving 
forward with its national interest determination.152 Although the State Department did not decide 
that environmental issues led to a determination that the proposed project was not in the national 
interest, environmental issues identified in the final EIS, and further stressed in public comments, 
led to its decision to delay that determination until it gathered this information.  
Although no new decision deadline was established, State Department officials suggested that it 
would be “reasonable to expect that this process including a public comment period on a 
supplement to the final EIS consistent with NEPA could be completed as early as the first quarter 
of 2013.”153 In a prior press interview, President Obama also appeared to suggest that, 
                                                 
149 U.S. Department of State press release, “Keystone XL Final Environmental Impact Statement Released; Public 
Meetings Set,” August 26, 2011, http://www.state.gov/r/pa/prs/ps/2011/08/171082.htm. 
150 These additional public meetings are not part of the NEPA process. Considering the strong public interest in the 
pipeline proposal (both opposed and in favor), the public hearings were part of the State Department’s national interest 
determination. 
151 U.S. Department of State, November 10, 2011. 
152 U.S. Department of State, “Keystone XL Pipeline Project Review Process: Decision to Seek Additional 
Information,” Media Note, PRN 2011/1909, Office of the Spokesperson, November 10, 2011. 
153 U.S. Department of State, November 10, 2011. 
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notwithstanding the delegation of Presidential Permit authority to the State Department, he would 
be personally involved in the final decision on the Keystone XL Pipeline permit application.154 
Directive to the President to Approve or Deny the Permit 
In the wake of the State Department determination that supplemental analysis was needed, 
Congress directed the President to make a determination on the Presidential permit application for 
the Keystone XL pipeline. Specifically, the Temporary Payroll Tax Cut Continuation Act of 2011 
(P.L. 112-78), enacted on December 23, 2011, included provisions requiring the Secretary of State 
to issue a permit for the project within 60 days, unless the President publicly determined the 
project to be not in the national interest.  
Subsequently, the State Department, with the President’s consent, announced that it would deny 
the Keystone XL permit on January 18, 2012. In its announcement the department stated that its 
decision “was predicated on the fact that [P.L. 112-78] ... passed in December does not provide 
sufficient time to obtain the information that we think is necessary to assess whether the project, 
in its current state, is in the national interest.”155 However, the department also stated that its 
decision did not preclude TransCanada from reapplying for a Presidential Permit in the future, 
although such a reapplication “will trigger ... a completely new review process.”156 
As a result of that denial, instead of developing a supplemental EIS incorporating analysis 
applicable to a new pipeline route through Nebraska, a new Presidential permit application 
process will be required. As a result, a “new” NEPA process will be required. Although much of 
the analysis and documentation will likely be the same, issuance of a draft and final EIS, and 
corresponding public and agency comment periods, will be required. 
Author Contact Information 
 
Paul W. Parfomak 
  Linda Luther 
Specialist in Energy and Infrastructure Policy 
Analyst in Environmental Policy 
pparfomak@crs.loc.gov, 7-0030 
lluther@crs.loc.gov, 7-6852 
Robert Pirog 
  Adam Vann 
Specialist in Energy Economics 
Legislative Attorney 
rpirog@crs.loc.gov, 7-6847 
avann@crs.loc.gov, 7-6978 
 
Acknowledgments 
The authors would like to acknowledge the contributions of Kristina Alexander, Vanessa 
Burrows, and Jim Uzel to the content of this report. 
                                                 
154 KETV NewsWatch 7, “Uncut: KETV’s Rob McCartney Interviews President Obama,” Omaha, NE, November 1, 
2011, http://www.ketv.com/video/29652519/detail.html. 
155 U.S. Department of State, January 18, 2012. 
156 Ibid. 
Congressional Research Service 
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