John O'Shea, the 57-year-old former general manager of the Texas unit of ABB, was arrested last week for his alleged role in a conspiracy to bribe Mexican government officials and get business from the Comision Federal de Electricidad, or CFE.

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In September of last year, a massive explosion at a Pemex natural-gas plant near the northern border city of Reynosa killed 30 workers and caused critical shortages of the fuel, causing the state-run electricity company Comision Federal de Electricidad to switch to more expensive fuels in order to free up some natural gas for industry.

WSJ: Deadly Blast Hits Mexico Oil Giant