"WASHINGTON — Oil companies that locked up more than 1.3 million acres of the Beaufort Sea for drilling in 2007 have since relinquished nearly half that territory."

"SAN FRANCISCO — Pacific Gas & Electric was charged Tuesday with lying to regulators in connection with a fatal pipeline explosion that killed eight people and leveled a suburban Northern California neighborhood in 2010."

"Proposed answers from Environment Canada to questions about a 2013 oilsands leak triggered emails suggesting the ministry 'limit information' given to media."

"The United States and Europe kicked off a joint effort on Tuesday intended to curb Russia’s long-term ability to develop new oil resources, taking aim at the Kremlin’s premier source of wealth and power in retaliation for its intervention in Ukraine."

"The nation gets its chance this week to blast or praise the Environmental Protection Agency’s sweeping plan to cut climate-warming emissions by 2030."

"A Libya oil depot fire spread uncontrolled Monday, after the oil depot was caught in the middle of militias battling for control of an airfield. The Libya oil depot fire had spread to a second depot by Monday afternoon, according to the government."

"The Government Accountability Office is calling on the federal Environmental Protection Agency to step up enforcement of water contamination and seismic activity associated with fracking, the high-pressure injection of fluids into wells to extract oil and natural gas."

"NEWPORT NEWS, Va. — Coal from Appalachia rumbles into this port city, 150 railroad cars at a time, bound for the belly of the massive cargo ship Prime Lily. The ship soon sets sail for South America, its 80,000 tons of coal destined for power plants and factories, an export of American energy — and pollution."