"BILLINGS, Mont. -- Federal regulators proposed $1.7 million in civil penalties against Exxon Mobil Corp. on Monday for safety violations linked to a pipeline rupture that spilled an estimated 63,000 gallons of crude oil into Montana's scenic Yellowstone River."

"When a Texas landowner took his fear that a gas driller had poisoned his well to federal regulators, the company, Range Resources Corp., turned around and sued him for conspiring 'to harm Range.'"

"CHEYENNE, Wyo. -- A judge in Casper has sided with the state of Wyoming and ruled against environmentalists who sought to obtain lists of the ingredients that go into hydraulic fracturing fluids."

"A controversial offshore wind project off the coast of Aberdeen has been approved by the Scottish government. The 11-turbine European Offshore Wind Deployment Centre is bitterly opposed by US businessman Donald Trump, who has complained that it will the spoil the view from his nearby golf course."

Natural gas liquids extracted from Pennsylvania's Marcellus Shale will go via new pipelines to Texas.

"WILLARD, Utah -- A Chevron fuel spill near a northern Utah bird refuge is much worse than originally thought as up to 27,000 gallons might have leaked, authorities said."

"PORTLAND, Maine -- Millions of gallons of crude oil from the nation's heartland are crossing Maine in railroad tank cars bound for a Canadian oil refinery, raising concern among environmentalists and state officials about the threat of an accident and spill."

"The Senate easily passed on Friday a symbolic measure approving the Canada to Texas Keystone XL oil pipeline, a move backers said showed strong support for a bill that would give Congress power to green light the project later in the year."