Casper Star-Tribune: Natural gas is set to increase its share of the electrical utility market if the U.S. Environmental Protection Agency moves forward with plans to phase in greenhouse gas regulations, beginning in January. On the production side, a handful of natural gas producers in Wyoming say they’ve already come a long way in reducing their own emissions in the field. EnCana Oil & Gas USA spokesman Randy Teeuwen said reducing emissions from its upstream operations isn’t a “job killer” as …