Higher natural gas futures prices for 2021 and a continued glut of crude oil are prodding U.S. shale firms to boost gas drilling and production. Shale producers are increasing spending on natural gas, a change from the past, amid forecasts for a 45% jump in gas prices next year compared to a 15% gain for Brent prices. The shift is a reminder to the Organization of the Petroleum Exporting Countries meeting this week how shale moves quickly in response to price. The OPEC group is considering whether to ease oil output curbs from Jan. 1. The largest U.S. shale oil producer, EOG Resources, this month said next year it will start selling gas […]