BP Deepwater Horizon Gulf Spill: Complacency Led to Disaster
On January 11, 2011, the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling released its final report on the causes and consequences of the BP Deepwater Horizon disaster, and proposed comprehensive reforms of both government and industry practices to overhaul the U.S. approach to drilling safety and greatly reduce the chances of a similar, large scale disaster in the future.
It is the conclusion of the commission that the accident could have been prevented, but as the Board that investigated the loss of the Columbia space shuttle noted, “complex systems almost always fail in complex ways”.
The immediate causes of the well blowout can be traced to a series of identifiable, preventable human and engineering mistakes made by BP, Halliburton, and Transocean that reveal such systematic failures in risk management that they place in doubt the safety culture of the entire industry. As offshore drilling took place in ever-deeper waters, safety precautions did not keep pace. Response plans to such a spill were inadequate, and had barely evolved since the 1989 Exxon Valdez oil spill in Alaska. Deepwater energy exploration and production, particularly at the frontiers of experience, involve risks for which neither industry nor government has been adequately prepared, but for which they can and must be prepared in the future. What went wrong in the broader context is that as the oil and gas industry moved down to depths of a thousand feet or more without having adjusted its response capability and/or its containment technology, to manage those new risks. At the time of the blowout, BP, and industry more generally, had no proven options for rapid containment in deep water other than attempting to close the blowout preventer. They just thought it couldn’t happen.
In the opinion of the Commission, baseline of prescriptive safety regulations applicable to offshore drilling should be toughened to address the increased challenges presented by drilling in deeper waters and less well known geologic areas, and by the changing nature of the oil and gas industry. Interior should also supplement those regulations with a risk-based performance approach, similar to the “safety case” approach used in the North Sea, that requires all offshore drilling companies to demonstrate that they have thoroughly evaluated all of the risks associated with drilling a particular well or other operation, and are prepared to address any and all risks pertaining to that well or operation.
Also, the oil and gas industry should create and maintain readily deployable resources for rescue, response, and containment and should ensure such resources are available in the immediate aftermath of a well blowout. The EPA should amend or issue guidance on the National Contingency Plan to establish distinct procedures for a Spill of National Significance, to increase state and local elected officials’ involvement in spill response planning, to update dispersant testing and use protocols, and to create a mechanism for expert oversight of well containment.
To assure human safety and environmental protection, regulatory oversight of leasing, energy exploration, and production require reforms even beyond those significant reforms already initiated since the Deepwater Horizon disaster. Broader consultations among federal agencies, including the Coast Guard and the National Oceanic and Atmospheric Administration (NOAA), prior to leasing and exploration will help identify and address risks. In particular, Congress should amend the Outer Continental Shelf Lands Act to provide the NOAA with a more formal consultation role relating to environmental protection in Interior leasing decisions.
Regulatory oversight was compromised by commingling two distinct missions within one agency: 1) responsibility for promoting the rapid expansion of offshore leasing and drilling; and 2) responsibility for ensuring its safety. Fundamental reform will be needed in both the structure of those in charge of regulatory oversight and their internal decisionmaking process to ensure their political autonomy, technical expertise, and their full consideration of environmental protection concerns.
Because regulatory oversight alone will not be sufficient to ensure adequate safety, the oil and gas industry will need to take its own, unilateral steps to increase dramatically safety throughout the industry, including self-policing mechanisms that supplement governmental enforcement. The technology, laws and regulations, and practices for containing, responding to, and cleaning up spills lag behind the real risks associated with deepwater drilling into large, high-pressure reservoirs of oil and gas located far offshore and thousands of feet below the ocean’s surface. Government must close the existing gap and industry must support rather than resist that effort. Existing conventional or “baseline” safety regulations should be expanded to address all features essential to well safety, and should be updated and enhanced to ensure safer drilling in all U.S. offshore operations—including drilling in deeper waters and less well-known geologic areas. These new regulations should be, at a minimum, at least as stringent as those regulations in peer oil-producing nations (such as Norway and the United Kingdom).
Scientific understanding of environmental conditions in sensitive environments in deep Gulf waters, along the region’s coastal habitats, and in areas proposed for more drilling, such as the Arctic, is inadequate. The same is true of the human and natural impacts of oil spills. The role of people that do have scientific competence and get more and better science into these key decisions must be strengthened. In order to assure good decisions are made regarding where, when, and how to develop resources safely and reduce risk in frontier areas, additional comprehensive scientific, technical, and oil spill response research is needed.
Commission Co- Chair William K. Reilly says he was struck by the totally inadequate response plans that were in place. In an interview with Yale Environment 360, he talks about why it’s crucial to carry out the reforms needed to prevent future disasters.


