"Duke Energy, the giant utility whose spill of toxic waste into a North Carolina river last month is under federal investigation, released wastewater last week from a second site upriver of Raleigh that state regulators said could be illegal."

"It's a busy Monday night at Whispers strip bar in the oil boomtown of Williston, North Dakota. A man in overalls drains his glass before showering money on a pole dancer."

"The Association of American Railroads said on Thursday that major railroads delivered 434,042 carloads of crude oil in 2013, an increase of 83 percent from 2012."

"As oil production goes, Florida isn't much of a player. The state produced less than 2 million barrels last year, which is how much oil Texas pumps from its wells each day. That's about to change as the revolution in oil drilling technology comes to Florida."

"Four years after the Deepwater Horizon rig explosion, BP is being welcomed back to seek new oil leases in the Gulf of Mexico."

"Internal emails between staff at North Carolina's environmental agency suggest state regulators were coordinating with Duke Energy before intervening in efforts by citizens groups trying to sue the company over groundwater pollution leeching from its coal ash dumps."

"The energy giant raised the cash it needed to survive by slashing royalties it paid property owners to drill on their land."

"Efforts to attach a measure fast-tracking natural gas exports to a Ukraine aid package by Sen. John Barrasso (R-Wyo.) on Wednesday were stopped dead at a committee markup."

"A $5bn facility to capture carbon and pump it underground could provide a lifeline for the dirtiest of fossil fuels, but many remain unconvinced"