Casper Star-Tribune: Natural gas is poised to grab a portion of the electric utility market that for decades called Wyoming coal its darling. Driving this shift is the U.S. Environmental Protection Agency’s actions to further restrict a number of industrial air pollutants, and a legal mandate to phase in rules curbing greenhouse gas emissions, which begin in January. Utilities say they need a more comprehensive climate and energy bill before they’re prepared to invest in expensive advanced-coal …