Home2014 Treaties and Agreements ...Mexico (14-718) – Agreement Concerning Transboundary Hydrocarbon Reservoirs in the Gulf of Mexico hide Mexico (14-718) – Agreement Concerning Transboundary Hydrocarbon Reservoirs in the Gulf of Mexico TIAS Office of Treaty Affairs July 18, 2014 Boundaries and Boundary Waters: Hydrocarbon Reservoirs Agreement signed at Los Cabos February 20, 2012; entered into force July 18, 2014. Download attachment [2 MB] Tags Boundaries and Boundary Waters Mexico Treaties