ABSTRACT:
Anadarko Petroleum Corporation partnered with the U.S. Coast Guard Eighth District and the Mexican Navy (SEMAR Zone 1) in a multi-year Mexico-United States (MEXUS) exercise series. The MEXUS Plan is a Joint Contingency Plan between the United Mexican States and the United States of America Regarding Pollution of the Marine Environment by Discharges of Hydrocarbons or other Hazardous Substances. It provides standard operational procedures with respect to bi-national coordination in case of pollution incidents that may represent a threat to coastal waters or the marine environment of the border zone of both countries. The MEXUS Agreement and Plan were developed after the Ixtoc I well blowout in June 1979. This international agreement entered into force on 30 March 1981.
Under the MEXUS Plan there are two regional annexes: Gulf (MEXUSGULF) and Pacific (MEXUSPAC). Each Annex incorporates regional resource and high-level strategic information to assist each country in communication and coordination during an incident that impacts both countries’ jurisdiction. The regional annexes are not tactical; tactical planning remains at the local level (Area Contingency Plans in the U.S.; Local Contingency Plans in Mexico), led by the respective Federal On-Scene Coordinator (FOSC). For the U.S., the U.S. Coast Guard is the lead agency serving as the Federal On-Scene Coordinator; the Mexican Navy serves as the lead agency in Mexico.
The U.S. Coast Guard has been working with the Mexican Navy (SEMAR) to update the MEXUS Plan, with a near final draft as of March 2017. The proposed changes incorporate several organizational changes that have occurred over the years while reiterating the core purpose as a communication and coordination plan.
With the impending development of offshore leases in Mexico, coupled with efforts to update the MEXUS Plan, a tabletop exercise was conducted in 2016. This tabletop exercise allowed senior officials from federal and state agencies and industry representatives to openly discuss emerging scenarios and high-level strategies to identify gaps and shortfalls in existing plans, policies and procedures. To achieve this concept, both countries shared procedures and processes to allow for resources to operate in each respective country to minimize impact to natural resources and sensitive shoreline areas. In 2017, the lessons learned were incorporated in a multi-day exercise to demonstrate how industry, the U.S. Coast Guard and other agencies would manage a hypothetical offshore subsea well incident originating from the U.S. with resulting impacts in Mexican waters.
This paper discusses the planning process and shares the lessons learned from both exercises in an effort to promote continued preparedness and improved response coordination. With the help of Mexican Association of Hydrocarbon Companies (AMEXHI), Mexico’s newly-formed national oil and gas industry association, these lessons learned will further help promote implementing Mexico’s new subsea containment and offshore response requirements.
U.S. State Practice
