Mexico blast a blow to Pemex’s improving safety

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Burnt out Pemex gas tanks at the Petroleos Mexicans pipeline distribution center on the outskirts of Reynosa, Mexico, reveals some of the extent of the damage caused by the gas explosion, Wednesday Sept. 19, 2012. The death toll in a pipeline fire at a distribution plant near the U.S. border has risen to 29, Mexico's state-owned oil company said Wednesday. At least 46 others were injured, and more might be missing. (AP Photo/The Monitor, Delcia Lopez)An enormous blast that killed 30 workers at a pipeline facility in northern Mexico was a big setback for the state-owned oil company, which up to this year had been reporting strides in its safety record at once accident-prone plants.