Home Latest News Top Stories Mexico: Methane Gas Build-Up, Spark Caused Blast Mexico: Methane Gas Build-Up, Spark Caused Blast By NewsAmericas - August 2, 2013 Facebook Twitter Gmail Linkedin I Like This Gas could have built up for decades before an explosion caused three floors of the headquarters of the national oil company to collapse, killing 37 people, Mexican federal prosecutors said Friday. Facebook Twitter Gmail Linkedin I Like This RELATED ARTICLESMORE FROM AUTHOR This Trinidadian Immigrant Brings Caribbean Flavored Drink Mixers To Texas Caribbean Immigrant Loses Primary To Ilhan Omar Parkland to consolidate its International Segment; agrees to a share exchange for the remaining 25 percent of Sol