Mexico petrochemical plant blast kills 24, 8 still missing
Site of the explosion produces the hazardous industrial chemical vinyl chloride.
Eight injured in fire at oil refinery in Mexico
Pemex said none of the injuries to two petroleum workers and six contractors were serious; cause of blaze being investigated.
Pemex forming company to explore for oil, gas in US
Mexico’s state-owned oil company has been unable to exploit its shale and deep-water reserves.