Deepwater Horizon Oil Spill: 
Highlighted Activities 
Jonathan L. Ramseur 
Specialist in Environmental Policy 
February 23, 2012 
Congressional Research Service 
7-5700 
www.crs.gov 
R42371 
CRS Report for Congress
Pr
  epared for Members and Committees of Congress        
Deepwater Horizon Oil Spill: Highlighted Activities 
 
Summary 
In the wake of the explosion of the Deepwater Horizon offshore drilling rig in the Gulf of Mexico 
on April 20, 2010, the federal government, state governments, and responsible parties faced an 
unprecedented challenge. An oil discharge continued for 84 days, resulting in the largest oil spill 
in U.S. waters—estimated at approximately 206 million gallons (4.9 million barrels). In recent 
financial statements, BP estimated the combined oil spill costs—cleanup, natural resource and 
economic damages, penalties, and other obligations—at approximately $41 billion. 
Response activities, led by the U.S. Coast Guard, continue but have diminished substantially. The 
natural resources damage assessment (NRDA) process, conducted by federal and state trustees, is 
ongoing, now in its restoration planning phase. The Gulf Coast Claims Facility (GCCF), funded 
by BP, continues to award claims to affected parties: it has awarded almost $6 billion in 
compensation for economic losses resulting from the oil spill. 
Members in the 112th Congress continue to express concerns regarding various oil spill-related 
policy matters. However, oil spill-related legislative activity in the 112th Congress has diminished 
compared to the 111th Congress. 
The House passed H.R. 3408 (the PIONEERS Act) on February 15, 2012; the act would create a 
Gulf Coast Restoration Trust Fund in the U.S. Treasury, financed by 80% of any Deepwater 
Horizon-related penalties, settlements, and fines under Clean Water Act (CWA) Section 311. The 
Trust Fund would be used to “restore the ecosystems and economy of the Gulf Coast region.” 
Unlike similar legislative proposals (e.g., S. 1400, which the Senate Committee on Environment 
and Public Works reported on December 11, 2011), the monies in the Trust Fund would not be 
immediately available, but would require further congressional action to appropriate the funds. 
Proposals that seek to encourage offshore oil exploration and development have seen more 
legislative action than oil spill-related proposals. Congress enacted one bill with provisions that 
arguably encourage OCS development. On December 23, 2011, Congress enacted P.L. 112-74 
(the Consolidated Appropriations Act, 2012). Among other provisions, this act (§432) transfers air 
emission regulatory authority in the OCS off Alaska’s north coast from the U.S. Environmental 
Protection Agency (EPA) to the Department of the Interior (DOI). The primary difference 
between the EPA and DOI programs is rooted in their different statutory authorities, which have 
different objectives—air quality versus offshore energy development. The two regulatory 
programs reflect these underlying differences. 
In addition, the House has passed several bills intended to encourage oil and gas development on 
the OCS. The Senate has not reported analogous legislation. 
In 2011 the Secretary of the Department of the Interior (DOI) initiated a series of reforms aimed 
at replacing the former regulatory agency, the Minerals Management Service (MMS). Secretary 
Salazar redefined the responsibilities previously performed by MMS and reassigned the functions 
of the offshore energy program among three separate organizations: the Bureau of Ocean Energy 
Management (BOEM), the Bureau of Safety and Environmental Enforcement (BSEE), and the 
Office of Natural Resources Revenue (ONRR). BOEM and BSEE are charged with managing 
procedures for leases and operations, ONRR for revenue management. 
 
Congressional Research Service 
Deepwater Horizon Oil Spill: Highlighted Activities 
 
Contents 
Introduction...................................................................................................................................... 1 
Oil Spill Response ........................................................................................................................... 1 
Compensation and Claims ............................................................................................................... 2 
NRDA and Gulf Coast Restoration.................................................................................................. 3 
Congressional Activity..................................................................................................................... 5 
Executive Branch Activity............................................................................................................... 6 
Independent Inquiries ...................................................................................................................... 7 
CRS Reports for Further Reading.................................................................................................... 8 
 
Contacts 
Author Contact Information............................................................................................................. 9 
 
Congressional Research Service 
Deepwater Horizon Oil Spill: Highlighted Activities 
 
Introduction 
In the wake of the explosion of the Deepwater Horizon offshore drilling rig on April 20, 2010, the 
federal government, state governments, and responsible parties faced an unprecedented challenge 
in the Gulf of Mexico. Never before had a subsea drilling system discharge of this magnitude, or 
an oil spill of this size—estimated at approximately 206 million gallons (4.9 million barrels)—
occurred in U.S. waters.1  
In many respects, the incident was unprecedented, testing the response capabilities of the federal 
government, state governments, and private industry; and the legal framework of liability and 
compensation. Both the response (i.e., cleanup) and compensation process continue today. 
This report provides a summary update of selected issues related to the 2010 Deepwater Horizon 
oil spill:  
•  Oil Spill Response 
•  Compensations and Claims 
•  NRDA and Gulf Coast Restoration 
•  Congressional Activity 
•  Executive Branch Activities 
•  Independent Inquiries 
More detailed analysis of these issues, as well as other issues (e.g., OCS moratoria), is addressed 
in other CRS products. The final section includes a list of CRS reports that discuss various 
aspects of the Deepwater Horizon incident as well as related background information. 
Oil Spill Response  
The uncontrolled discharge from the Deepwater Horizon continued for approximately 84 days 
until, following several attempts, responders gained control of the release on July 15, 2010. 
Response activities continue to date but have diminished substantially compared to the height of 
operations: 
•  During the summer of 2010, response personnel levels rose to 47,000; response 
vessel numbers approached 7,000. 
•  As of December 2011, approximately 1,000 response personnel remain in the 
Gulf region.2  
                                                 
1 An estimated 17% of this oil did not enter the Gulf environment, but was directly recovered from the wellhead by BP. 
See the Federal Interagency Solutions Group, Oil Budget Calculator Science and Engineering Team, Oil Budget 
Calculator: Deepwater Horizon-Technical Documentation, November 2010. See also CRS Report R41531, Deepwater 
Horizon Oil Spill: The Fate of the Oil, by Jonathan L. Ramseur. 
2 Unified Command, Shoreline Clean-up Completion Plan (SCCP) FAQs, December 15, 2011, at 
http://www.restorethegulf.gov/sites/default/files/u306/SCCP%20FAQ%20FINAL%20VERSION1.pdf. See also the 
Unified Command website at http://www.restorethegulf.gov. 
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According to NOAA shoreline survey data, the maximum extent of shoreline oiling involved 
almost 1,100 miles of shoreline. As of October 2011, that figure has decreased to 481 miles.3 
On November 23, 2010, the federal government released a peer-reviewed publication that 
provided an oil budget estimate (i.e., an estimate of what happened to the oil). At the time of these 
calculations, a portion of the oil had been effectively removed from the Gulf environment through 
human interaction. However, a greater portion remained, in some form, in the Gulf.4 
It is debatable whether the fate of the remaining oil will ever be established conclusively. 
Multiple challenges hinder this objective, and as time progresses, determining the fate of the oil 
will likely become more difficult. Researchers are continuing to study and publish results 
addressing various aspects of the spill.5 
Compensation and Claims 
As an identified responsible party (others may also be legally responsible),6 BP is liable for 
cleanup costs, natural resource damages, and various economic damages.7 The total costs of the 
2010 Gulf spill are projected to dwarf those of the 1989 Exxon Valdez oil spill.8 In its recent 
financial statements, BP estimated the combined oil spill costs—cleanup, natural resource and 
economic damages, potential Clean Water Act (CWA) penalties, and other obligations—to be 
approximately $41 billion. This estimate includes payments made to date as well as projected 
future payments, such as claims. However, BP acknowledges the difficulty in estimating some 
costs and does not include these costs in its projection. Therefore, this estimate is subject to 
considerable uncertainty.9 
                                                 
3 Data from personal communication (October 3, 2011) with NOAA Office of Response and Restoration officials. 
4 For more information, see CRS Report R41531, Deepwater Horizon Oil Spill: The Fate of the Oil, by Jonathan L. 
Ramseur. 
5 For example, some recent results suggest that microbial organisms played a substantial role through biodegradation. 
See, e.g., David Valentine et al, “Dynamic autoinoculation and the microbial ecology of a deep water hydrocarbon 
irruption,” Proceedings of the National Academy of Sciences, January 2012; Bethanie Edwards et al., “Rapid Microbial 
Respiration of Oil from the Deepwater Horizon Spill in Offshore Surface Waters of the Gulf of Mexico,” 
Environmental Research Letters, Vol. 6, August 2011. 
6 For the purpose of this report, BP is discussed as if it is the sole responsible party—a key term in the existing liability 
and compensation framework. However, other parties are involved. The Department of Justice named 9 defendants in a 
civil suit filed December 15, 2010. See Press Release at http://www.justice.gov/opa/pr/2010/December/10-ag-
1442.html. 
7 Oil Pollution Act, 33 U.S.C. 2702 (discussed below). 
8 The Exxon Valdez was a U.S.-flagged tanker that grounded in Prince William Sound, AK, in March 1989 spilling 
approximately 11 million gallons of oil. The oil spill sparked regional and nation-wide interest in oil spill prevention, 
response, clean-up, and liability. In association with the 1989 oil spill, Exxon paid approximately $4.9 billion. 
Payments were made voluntarily and pursuant to several different legal proceedings at different times over 
approximately 20 years.  
9 As stated by BP, 
The total amounts that will ultimately be paid by BP in relation to all obligations relating to the 
incident are subject to significant uncertainty and the ultimate exposure and cost to BP will be 
dependent on many factors. Furthermore, the amount of claims that become payable by BP, the 
amount of fines ultimately levied on BP (including any determination of BP’s negligence), the 
outcome of litigation, and any costs arising from any longer-term environmental consequences of 
the oil spill, will also impact upon the ultimate cost for BP. 
(continued...) 
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In the early months of the spill, the issue of liability limits received considerable attention. As a 
responsible party of an offshore facility, BP is liable for “all removal costs plus $75 million” for 
natural resource damages and specified economic damages.10 However, liability limits are not 
guaranteed but are conditional.11 Regardless, BP has awarded claims to individuals and 
businesses far exceeding its (conditional) liability limit of $75 million. The Obama 
Administration and BP jointly announced on June 16, 2010, the creation of the Gulf Coast Claims 
Facility (GCCF), an independent claims facility administered by Kenneth Feinberg, to process 
claims for individuals and businesses.12 Although the GCCF has awarded approximately $6 
billion (as of February 17, 2012), it has received considerable attention, with some raising 
questions about its effectiveness in compensating injured parties.13 The GCCF will continue to 
accept claims until it closes its operations on August 22, 2013. 
Some parties have sought compensation through litigation. Many of these lawsuits have been 
consolidated into a case before the United States District Court in New Orleans. According to 
court documents, over 100,000 private claims of “non-governmental economic loss and property 
damages” comprise one part of this case;14 other parts include government claims.15  
NRDA and Gulf Coast Restoration 
When a spill occurs, natural resource trustees conduct a natural resource damage assessment 
(NRDA) to determine the extent of the harm. Trustees may include officials from federal agencies 
designated by the President, state agencies designated by the relevant governor, and 
representatives from tribal and foreign governments. The trustees’ work occurs in three steps: a 
Pre-assessment Phase, the Restoration Planning Phase, and the Restoration Implementation 
Phase. Natural resource damages are compensatory, not punitive. Collected damages cannot be 
placed into the general treasury revenues of the federal or state government, but must be used to 
restore or replace lost resources.  
The Deepwater Horizon NRDA process is progressing as trustees have moved from a pre-
assessment phase to a restoration planning phase.16  
                                                                  
(...continued) 
BP, Fourth quarter and full year 2010 financial statement, February 1, 2011, at http://www.bp.com/. 
10 OPA §1004 (33 U.S.C. §2704). 
11 First, the liability limits do not apply to situations involving acts of gross negligence or willful misconduct. Second, 
liability limits do not apply if the violation of a federal safety, construction, or operating requirement proximately 
caused the spill. Third, parties must report the incident and cooperate with response officials to maintain their liability 
caps. See OPA Section 1004 (33 U.S.C. §2704). 
12 See http://www.gulfcoastclaimsfacility.com/. 
13 For more information, see CRS Report R41679, Liability and Compensation Issues Raised by the 2010 Gulf Oil 
Spill, by Jonathan L. Ramseur. 
14 See United States District Court Eastern District of Louisiana, Order issued August 26, 2011, at 
http://www.laed.uscourts.gov/OilSpill/OilSpill.htm. 
15 For further information, the Court’s website provides documents related to the case, http://www.laed.uscourts.gov/
OilSpill/OilSpill.htm. 
16 For more information, see CRS Report R41972, The 2010 Deepwater Horizon Oil Spill: Natural Resource Damage 
Assessment Under the Oil Pollution Act, by James V. DeBergh. 
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On April 21, 2011, the trustees for the Deepwater Horizon oil spill announced that BP has agreed 
to provide $1 billion toward early restoration projects in the Gulf of Mexico to address injuries to 
natural resources caused by the spill. “Early Restoration” projects may be developed prior to the 
completion of the injury assessment to achieve restoration faster. NOAA published a draft plan 
(seeking public comments) of early restoration projects in December 2011.17  
The Deepwater Horizon oil spill raised issues regarding restoration of natural resources in the 
spill’s path and the region at large. On June 15, 2010, the Administration committed to 
developing a long-term Gulf of Mexico restoration plan for post-spill recovery needs as well as 
long-term restoration. In contrast to the environmental damages addressed by NRDA, the 
Administration’s plan would address a broader array of restoration needs,18 many of which 
predate the oil spill.19  
To fund restoration efforts, and, in some cases, economic projects, in the Gulf region, several bills 
would redirect20 potential CWA Deepwater Horizon penalties into a newly created trust fund. 
Unless specifically directed otherwise, the Miscellaneous Receipts Act (31 U.S.C. §3302(b)) 
provides that all court or administratively imposed penalties are paid to the general fund of the 
U.S. Department of the Treasury. The underlying statutory provisions of the Oil Spill Liability 
Trust Fund (OSLTF) override this general provision by transferring civil judicial penalties under 
CWA Section 311 (among others)21 into the OSLTF.22  
The potential CWA civil penalties could be substantial: the National Commission report included 
a range of $4.5 billion to $21.5 billion for possible penalty revenue.23 However, the civil penalties 
could be below this range, because the “EPA Administrator, the Secretary [of Homeland 
Security], or the court, as the case may” must consider several factors when assessing the penalty 
amounts.24 On December 15, 2010, the U.S. Department of Justice (DOJ) initiated a civil 
proceeding against BP and other defendants related to the Deepwater Horizon incident. One of 
the issues in this case relates to the CWA civil penalties. 
                                                 
17 For more up-to-date information, see http://www.gulfspillrestoration.noaa.gov/. 
18 See the Obama Administration’s America’s Gulf Coast: A Long Term Recovery Plan after the Deepwater Horizon 
Oil Spill (sometimes referred to as the “Mabus Report”), September 2010. 
19 See CRS Report R41640, The Deepwater Horizon Oil Spill and the Gulf of Mexico Fishing Industry, by Harold F. 
Upton. 
20 Existing law directs these penalties to the Oil Spill Liability Trust Fund. See CRS Report R41679, Liability and 
Compensation Issues Raised by the 2010 Gulf Oil Spill, by Jonathan L. Ramseur. 
21 26 U.S.C. §9509(b)(8) states “any penalty paid pursuant to section 311 of the Federal Water Pollution Control Act, 
section 309(c) of such Act (as a result of violations of such section 311), the Deepwater Port Act of 1974, or section 
207 of the Trans-Alaska Pipeline Authorization Act.”  
22 The relationship between trust funds, such as the OSLTF, and the general treasury is complex. For more information, 
see GAO, Federal Trust and Other Earmarked Funds: Answers to Frequently Asked Questions, January 2001. 
23 The low end of this range is achieved by multiplying 4.1 million barrels (amount of discharge after removing the 
17% directly captured by BP) by $1,100/ barrel. The upper end of range is achieved by multiplying 4.9 million barrels 
(total discharge amount) by the maximum penalty of $4,300/barrel, which presumes a determination of either gross 
negligence or willful misconduct. 
24 As listed in CWA §311(b)(8), these include 
the seriousness of the violation or violations, the economic benefit to the violator, if any, resulting 
from the violation, the degree of culpability involved, any other penalty for the same incident, any 
history of prior violations, the nature, extent, and degree of success of any efforts of the violator to 
minimize or mitigate the effects of the discharge, the economic impact of the penalty on the 
violator, and any other matters as justice may require. 
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Congressional Activity 
Although interest has arguably diminished in the 112th Congress (relative to interest in the 111th 
Congress—see text box below), some Members continue to express concerns regarding various 
oil spill-related policy matters.  
The House passed H.R. 3408 (the PIONEERS Act) on February 15, 2012; the act would create a 
Gulf Coast Restoration Trust Fund in the U.S. Treasury, financed by 80% of any Deepwater 
Horizon-related penalties, settlements, and fines under Clean Water Act (CWA) Section 311. 
Compared to similar bills, the text is relatively brief, stating that the Trust Fund would be used to 
“restore the ecosystems and economy of the Gulf Coast region.” Unlike similar legislative 
proposals (e.g., S. 1400, discussed below), the monies in the Trust Fund would not be 
immediately available, but would require further congressional action to appropriate the funds. 
The Senate Committee on Environment and Public Works reported S. 1400 (the RESTORE Act) 
on December 11, 2011. This bill would distribute (without further appropriation) potential CWA 
penalties from the incident to Gulf states and a restoration council to support various objectives, 
including restoration projects and economic development in the Gulf states. 
At least four committees in both the House and the Senate have held hearings on issues associated 
with the Deepwater Horizon oil spill in the 112th Congress. Several of these hearings dealt with 
recommendations made by the National Commission on the BP Deepwater Horizon Oil Spill and 
Offshore Drilling, which issued its final report in January 2011.25 At least 30 proposals have been 
introduced that would address various oil spill-related issues.26 Some of the bills are similar (if 
not identical) to proposals from the 111th Congress. Other bills reflect recommendations by the 
Commission in its January 2011 final report.27 
 
Activity in the 111th Congress28 
During the immediate aftermath of the oil spill, Senate and House committees in the 111th Congress held more than 
60 hearings on a variety of issues. Members introduced more than 150 legislative proposals related to oil spill matters. 
The 111th Congress enacted three of these proposals into law (P.L. 111-191, P.L. 111-212, and P.L. 111-281). 
Provisions in these laws generally concerned short-term matters that will not have a lasting impact on oil spill 
governance. However, H.R. 3619, the Coast Guard Authorization Act for Fiscal Years 2010 and 2011, which the 
President signed October 15, 2010 (P.L. 111-281), includes more substantial changes. In addition to the enacted 
legislation, the House in the 111th Congress passed several bills, including H.R. 3534 (the Consolidated Land, Energy, 
and Aquatic Resources Act, or CLEAR Act), that included multiple oil spill provisions. The Senate had comparable 
bills on its legislative calendar, but did not vote on their passage. 
 
                                                 
25 The final report and other publications are available at http://www.oilspillcommission.gov/. 
26 Primarily in response to oil pipeline spills, Congress enacted (January 3, 2012) one oil spill-related bill—H.R. 2845 
(the Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011). See CRS Report R41684, Oil Spill 
Legislation in the 112th Congress, by Jonathan L. Ramseur. 
27 See CRS Report R41684, Oil Spill Legislation in the 112th Congress, by Jonathan L. Ramseur; and Commission’s 
final report at http://www.oilspillcommission.gov. 
28 CRS Report R41453, Oil Spill Legislation in the 111th Congress, by Jonathan L. Ramseur (archived). 
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In contrast, proposals that seek to encourage offshore oil exploration and development have seen 
more legislative action. Congress enacted one bill with provisions that arguably encourage OCS 
development. On December 23, 2011, Congress enacted P.L. 112-74 (Consolidated 
Appropriations Act, 2012). Among other provisions, this act (§432) transfers air emission 
regulatory authority in the OCS off Alaska’s north coast from the U.S. Environmental Protection 
Agency (EPA) to the Department of the Interior (DOI). The primary difference between the EPA 
and DOI programs is rooted in their different statutory authorities, which have different 
objectives—air quality versus offshore energy development. The two regulatory programs reflect 
these underlying differences. 
In addition, the House passed several bills that encourage oil and gas development on the OCS: 
for example, H.R. 1230, H.R. 1229, H.R. 1231, and H.R. 2021. The Senate has not reported 
analogous legislation. 
Executive Branch Activity 
The Administration’s response involves multiple agencies. As this spill occurred in the coastal 
zone, an on-scene coordinator (OSC) from the U.S. Coast Guard directed and coordinated the on-
site activities of federal, state, local, and private entities (e.g., BP). The OSC continues to 
coordinate activities in the region. This framework of multiple parties working together under the 
leadership of the federal government is referred to as the Unified Command. Upon classifying the 
event as a spill of national significance, Secretary of Homeland Security Napolitano appointed 
retired Coast Guard Admiral Thad Allen as National Incident Commander, a role that dissolved in 
October 2010.  
Prior to the oil spill, the Department of the Interior (DOI) and congressional investigations had 
identified a number of management shortcomings, ethical lapses among personnel, and conflicts 
of interest in the former Minerals Management Service (MMS). Such concerns had been raised in 
oversight hearings and in reports, including one from the DOI inspector general.29 On May 19, 
2010, the Secretary of the Department of the Interior (DOI) replaced the Minerals Management 
Service (MMS) with the Bureau of Ocean Energy Management, Regulation and Enforcement 
(BOEMRE). On October 1, 2011, DOI divided BOEMRE into three separate entities: the Bureau 
of Ocean Energy Management (BOEM), the Bureau of Safety and Environmental Enforcement 
(BSEE), and the Office of Natural Resources Revenue (ONRR).  
The DOI agencies have issued several regulatory and policy changes related to offshore activities, 
including an interim final rule on drilling procedures, and notices to lessees (NTLs) on worst-case 
discharges and spill containment measures.30 
After observing the Deepwater Horizon response operations in the Gulf, many questioned the 
ability of industry and the federal government to prevent or respond to a significant blowout at 
substantial water depths. DOI agencies issued two notices to lessees (NTLs) to address some of 
these issues through policy guidance.31 In addition, two industry groups—the Marine Well 
                                                 
29 For more information, see CRS Report R41485, Reorganization of the Minerals Management Service in the 
Aftermath of the Deepwater Horizon Oil Spill, by Henry B. Hogue. 
30 For more details, see http://www.boem.gov/reforms.htm. 
31 The NTLs are available at http://www.boem.gov/reforms.htm. 
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Containment Company (MWCC)32 and Helix Well Containment Group (HWGC)33—pooled 
resources to develop subsea containment technology that could be used by operators on the OCS. 
Independent Inquiries 
Several investigations and commissions—both federal and private—were initiated to examine 
issues surrounding the Deepwater Horizon incident. These include the following (listed in order 
of report publication date): 
•  National Incident Commander’s Report: final report released October 2010.34 
•  U.S. Coast Guard’s Incident Specific Preparedness Review: final report released 
January 2011.35 
•  The National Commission on the BP Deepwater Horizon Oil Spill and Offshore 
Drilling: final report—The Gulf Disaster and the Future of Offshore Drilling—
submitted to the President on January 12, 2011.36 
•  Joint Investigation of Bureau of Ocean Energy Management, Regulation, and 
Enforcement and U.S. Coast Guard: volume I of the final report—Report of 
Investigation into the Circumstances Surrounding the Explosion, Fire, Sinking 
and Loss of Eleven Crew Members Aboard the Mobile Offshore Drilling Unit 
Deepwater Horizon—issued in April 2011;37 and Volume II—Report Regarding 
the Causes of the April 20, 2010 Macondo Well Blowout—issued in September 
2011.38 
•  On Scene Coordinator Report: released September 2011.39 
•  National Academy of Engineering: final report—Macondo Well–Deepwater 
Horizon Blowout: Lessons for Improving Offshore Drilling Safety—issued 
December 2011.40 
•  U.S. Chemical Safety and Hazard Investigation Board: report forthcoming.41 
Several committee hearings have considered the findings of some of these reports, particularly the 
National Commission’s final report. 
                                                 
32 See http://marinewellcontainment.com/about.php. 
33 See http://www.helixesg.com/HFRS/. 
34 See http://www.nrt.org 
35 See http://www.uscg.mil/foia/docs/DWH/BPDWH.pdf. 
36 See http://www.oilspillcommission.gov/. 
37 For cover letter, see http://www.boemre.gov/pdfs/maps/JointMemo092011.pdf; Volume I available at 
https://homeport.uscg.mil. 
38 See http://www.boemre.gov/pdfs/maps/DWHFINAL.pdf. 
39 See https://homeport.uscg.mil. 
40 See http://www.nae.edu/default.aspx?id=19649. 
41 See http://www.csb.gov/investigations. 
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CRS Reports for Further Reading 
Legislation 
CRS Report R41684, Oil Spill Legislation in the 112th Congress, by Jonathan L. Ramseur. 
CRS Report R41453, Oil Spill Legislation in the 111th Congress, by Jonathan L. Ramseur. 
2010 Deepwater Horizon Oil Spill 
CRS Report R41679, Liability and Compensation Issues Raised by the 2010 Gulf Oil Spill, by 
Jonathan L. Ramseur. 
CRS Report R41531, Deepwater Horizon Oil Spill: The Fate of the Oil, by Jonathan L. Ramseur. 
CRS Report R41972, The 2010 Deepwater Horizon Oil Spill: Natural Resource Damage 
Assessment Under the Oil Pollution Act, by James V. DeBergh. 
CRS Report R41311, The Deepwater Horizon Oil Spill: Coastal Wetland and Wildlife Impacts 
and Response, by M. Lynne Corn and Claudia Copeland. 
CRS Report R41320, Deepwater Horizon Oil Spill Disaster: Risk, Recovery, and Insurance 
Implications, by Rawle O. King. 
CRS Report R41323, Tax Issues and the Gulf of Mexico Oil Spill: Legal Analysis of Payments 
and Tax Relief Policy Options, by Molly F. Sherlock, Erika K. Lunder, and Edward C. Liu. 
CRS Report R41265, The 2010 Oil Spill: MMS/BOEMRE and NEPA, by Kristina Alexander. 
CRS Report R41234, Potential Stafford Act Declarations for the Gulf Coast Oil Spill: Issues for 
Congress, by Francis X. McCarthy. 
CRS Report R41365, Tax Deductible Expenses: The BP Case, by Molly F. Sherlock. 
Background 
CRS Report RL33705, Oil Spills in U.S. Coastal Waters: Background and Governance, by 
Jonathan L. Ramseur. 
CRS Report RS22145, Environmental Activities of the U.S. Coast Guard, by Jonathan L. 
Ramseur. 
CRS Report R41266, Oil Pollution Act of 1990 (OPA): Liability of Responsible Parties, by 
Robert Meltz. 
CRS Report R41370, Federal Civil and Criminal Penalties Possibly Applicable to Parties 
Responsible for the Gulf of Mexico Oil Spill, by Robert Meltz. 
CRS Report RL34209, Commercial Fishery Disaster Assistance, by Harold F. Upton. 
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CRS Report R41308, The 2010 Oil Spill: Criminal Liability Under Wildlife Laws, by Kristina 
Alexander. 
CRS Report RL33404, Offshore Oil and Gas Development: Legal Framework, by Adam Vann. 
CRS Report R41485, Reorganization of the Minerals Management Service in the Aftermath of the 
Deepwater Horizon Oil Spill, by Henry B. Hogue. 
CRS Report RS22022, Disaster Unemployment Assistance (DUA), by Julie M. Whittaker. 
CRS Report R40645, U.S. Offshore Oil and Gas Resources: Prospects and Processes, by Marc 
Humphries and Robert Pirog. 
CRS Report R41522, Cuba’s Offshore Oil Development: Background and U.S. Policy 
Considerations, by Neelesh Nerurkar and Mark P. Sullivan. 
CRS Report RS22990, Gas Hydrates: Resource and Hazard, by Peter Folger. 
CRS Report R41132, Outer Continental Shelf Moratoria on Oil and Gas Development, by Curry 
L. Hagerty. 
 
Author Contact Information 
 
Jonathan L. Ramseur 
   
Specialist in Environmental Policy 
jramseur@crs.loc.gov, 7-7919 
 
 
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