Offshore Division Montara Macondo Investigations Status

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Investigative Body Reports and Other Documents
U.S. Chemical Safety Board Investigation of Deepwater Horizon Executive Summary (12 April 2016)

  • Incident Review
  • Key Findings & Conclusions
    • Technical Factors
    • Human & Organizational Factors
    • Regulatory Factors

Overview (5 June 2014) Volume 1 (5 June 2014)

  • Macondo Incident Background and General Description
  • Deepwater Drilling and Temporary Abandonment of the Macondo Well

Volume 2 (5 June 2014)

  • BOP Technical Failure Analysis
  • Barrier Management at Macondo
  • Safety Critical Elements

Volume 3 (12 April 2016)

  • Human Factors
  • Organizational Learning
  • Safety Performance Indicators
  • Risk Management Practices
  • Corporate Governance
  • Safety Culture

Volume 4 (5 June 2016)

  • US Offshore Safety Regulation During and After Macondo
  • Attributes of an Effective Regulatory and Regulatory System
United States District Court for the Eastern District of Louisiana Partial Consent Decree between the USA and Transocean (19 February 2013)
Amendment to the Partial Consent Decree between the USA and Transocean (19 February 2013)
Deepwater Horizon Joint (BOEMRE-USCG) Investigation of Deepwater Horizon Vol.1 (U.S. Coast Guard-Joint Investigation Team) draft report to Commandant
22 April 2011
IADC letter of 31 May 2011 to the Commandant, USCG, regarding the Vol. 1 draft report to Commandant
31 May 2011
BOEMRE Final Report regarding Macondo Well Blowout
14 September 2011
Deepwater Horizon Joint Investigation Team Releases Final Report
14 September 2011
Volume I – USCG Final Action Memo on Vol I
14 September 2011
Volume I – Enclosure to Final Action Memo
14 September 2011
Deepwater Horizon Report Appendices
September 2011
U.S. Coast Guard Incident Specific Preparedness Review (ISPR) Deepwater Horizon Oil Spill
18 March 2011
Montara Commission of Inquiry Report of the Montara Commission of Inquiry
17 June 2010
Final Government Response to the Report of The Montara Commission Of Inquiry
25 May 2011
BP Deepwater Horizon Accident Investigation Report
8 September 2010
Transocean Macando Well Incident: Transocean Report, Vol I
20 June 2011
Macando Well Incident: Transocean Report, Vol II
20 June 2011
The National Commission on the Deepwater Horizon Oil Spill and Offshore Drilling Visit Archived Website
Oil Spill Commission Action The oil Spill Commission Action (OCSA) project is an outgrowth of the National Commission (above) supported of many of the original Commissioners.
OSCA Assessment Report on the status of implementation of the Commission’s recommendations (17 April 2012)
(low resolution version)
17 August 2011
Harvard Law School 
Emmet Environmental Law and Policy Clinic
Recommendations for Improved Oversight of Offshore Drilling Based on a Review of 40 Regulatory Regimes (June 2012)

Appendix – Regulatory Programs and Organizations Analyzed January-April 2012

University of California, Berkeley — Center for Catastrophic Risk Management “Deepwater Horizon Study Group Final Report on the Investigation of the Macondo Well Blowout”
1 March 2011
U.S. Chemical Safety Board Investigation of Deepwater Horizon Investigation currently underway
National Academy of Engineering– Analysis of Causes of Deepwater Horizon Explosion, Fire, and Oil Spill to Identify Measures to Prevent Similar Accidents in the Future Interim Report on Causes of the Deepwater Horizon Oil Rig Blowout and Ways to Prevent Such Events
16 November 2010
Macondo Well-Deepwater Horizon Blowout:  Lessons for Offshore Drilling Safety
14 December 2011
Transportation Research Board Transportation Research Board Special Report 309:
Evaluating the Effectiveness of Offshore Safety and Environmental Management Systems
June 2012
Petroleum Safety Authority Norway – Macondo Incident Preliminary conclusions by the Petroleum Safety Authority Norway (PSA) and action recommended after the Deepwater Horizon accident (English summary)
9 June 2011
SINTEF Executive Summary of report commissioned by the Petroleum Safety Authority
May 2011
The Petroleum Safety Authority Norway’s concluding report on its follow-up of the Deepwater Horizon accident
February 2014
Norwegian Oil Industry Association (OLF)
Deepwater Horizon – lessons learned and follow up
OLF’s Deepwater Horizon Report – In English (84 pages)
OLF’s summary Report – In English (20 Pages)
June 2012
UK Health and Safety Executive – Deepwater Horizon incident in the Gulf of Mexico The Health and Safety Executive’s Offshore Division is monitoring the situation in the Gulf of Mexico following the fatal explosion on the Deepwater Horizon drilling rig in April 2010 and has created a website (link at left) to report on its findings, observations and actions.
 UK Ministerial commissioned Independent Review for the Deepwater Horizon/Macondo incident Offshore Oil and Gas in the UK – an independent review of the regulatory regime December 2011Government Response to an Independent Review of the Regulatory Regime, Department of Energy & Climate Change, December 2012
International Organization for Standardization – Subcommittee on Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries Proposed ISO/TC 67 programme for drilling, well construction and well operations standards, resulting from the Montara and Macondo accidents
(N 1119)
1 March 2011
International Maritime Organization (IMO) Casualty Statistics and Investigation, Report of the Correspondence Group on Casualty Analysis (FSI 21/5) addressing, inter alia, the explosion, fire and loss of the Mobile Offshore Drilling Unit Deepwater Horizon
International Association of Oil and Gas Producers (OGP) International recommendations on well incident prevention, intervention and response
Global Industry Response Group recommendations (Summary)
May 2011
Oil Spill Response
May 2011
Capping & Containment
May 2011
Deepwater Wells
May 2011