Bloomberg: Chevron Corp. (CVX) joined natural gas producers and environmental groups to form an independent center that will set standards for drilling by hydraulic fracturing in the U.S. Appalachian region.
Gas output in Pennsylvania, Ohio and West Virginia is booming as drillers unlock shale deposits using the process, also called fracking, that shoots water, sand and chemicals underground to crack rock and free trapped gas. The process has spurred complaints from landowners and environmental groups about...