Offshore oil and gas in the Gulf of Mexico (United States) blowout) began on April 20, 2010, in the Gulf of Mexico on the BP-operated Macondo Prospect. Killing eleven people, it is considered the largest marine oil spill in the history of the petroleum industry and estimated to be 8% to 31% larger in volume than the previous largest, the Ixtoc I oil spill. In 2012, federal leases in the Gulf of Mexico produced of oil, which made up 19.5% of all U.S. oil production that year, and more than that of any U.S. state other than Texas. The 2012 production was less than the in 2009; however, due to new
Infighting in the Gulf Cartel with the Sinaloa Cartel and Joaquín "El Chapo" Guzmán. Nonetheless, after the arrests of Costilla Sánchez and Cárdenas Guillén, it is difficult to predict what fate lies ahead for the Gulf Cartel and Mexico's criminal underworld. In the late 1990s, Osiel Cárdenas Guillén, the former leader of the Gulf Cartel, had other similar groups besides Los Zetas established in several cities in Tamaulipas. Each of these groups were identified by their radio codes: the Rojos were based in Reynosa; the Metros were headquartered in Matamoros; and the Lobos were established in Laredo. The infighting between the Metros and the Rojos