A U.S. subsidiary of Mexico’s state power company Comisión Federal de Electricidad (CFE) posted a 14% year/year increase in pipeline natural gas exports from the United States to Mexico during the second quarter, according to the U.S. Department of Energy. The subsidiary, CFE International LLC (CFEi), exported 298,963 MMcf or 3.3 Bcf/d under short-term contracts…