MWCC is a not for profit operation
supported by 10 of the world’s largest
offshore deepwater operators.

MWCC was established in response to the Deepwater Horizon incident in 2010. This event prompted unprecedented collaboration among companies within the energy industry who realized they needed a dedicated source control solution. In 2010, subsea source control organizations were nonexistent.

Almost immediately, major offshore operators came together to begin developing a solution to enhance response readiness for future events. In parallel, regulators initiated additional guidance for enhanced prevention and response practices for future deepwater drilling activities.

Regulators issued two Notices to Lessees and Operators (NTL) in 2010. The first required Operators to provide worst case discharge calculations – the worst case scenario for the amount of hydrocarbons released from a well, and emergency plans to mitigate the impact of losing subsea well control. The second notice gave specific requirements for lease holders to have access to capping stacks, dispersant and other source control equipment to stop the flow of a well. These standards were developed into regulation known as the Well Control Rule, which maintains the same standards for source control defined in the first two NTLs.

In July 2010, Chevron, ConocoPhillips, ExxonMobil and Shell came together to build the world’s most comprehensive Containment System. This project, commissioned as the Marine Well Containment System, required an initial capital investment of more than $1 billion. These four companies became the initial members of Marine Well Containment Company (MWCC) and were later joined by other major operators in the U.S. Gulf of Mexico, united in the mission of ensuring the industry will be prepared to respond to future emergencies.


Our members are committed to ensuring that MWCC’s leadership is some of the best and brightest the industry…

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MWCC’s corporate headquarters and two equipment storage facilities are situated along the U.S. Gulf Coast…

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History & Structure

MWCC was founded as an independent, not for profit organization in 2010 as a result of industry collaboration…

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We are continuously ready to respond

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Marine Well Containment Company (MWCC) is an independent company founded in 2010 to address the need for a deepwater well containment response capability in the U.S. Gulf of Mexico.

MWCC's industry-leading approach to deepwater well control incidents is built on three pillars: dedicated equipment, a highly skilled organization, and a preeminent responder training program.

MWCC has the most comprehensive portfolio of source control equipment to cover a broad range of well characteristics. The ownership of this system comes with great responsibilities to…