"NEW ORLEANS -- Billions of dollars will be at stake Monday at the opening of a complex trial to determine how much BP should pay for the devastating 2010 Gulf of Mexico oil spill."

"Native Americans on an oil-rich North Dakota reservation have been cheated out of more than $1 billion by schemes to buy drilling rights for lowball prices, a flurry of recent lawsuits assert. And, the suits claim, the federal government facilitated the alleged swindle by failing in its legal obligation to ensure the tribes got a fair deal."

"Drilling specialists have been pumping heavy fluids into a gas well 50 miles off the Louisiana coast in a bid to halt natural gas moving among underground formations at the site."

"Limited data and unreliable estimates on air pollution from oil and natural gas production is hindering the Environmental Protection Agency's efforts to police the drilling boom, the agency's internal watchdog said in a report released Thursday."

"Environmental advocates and representatives from the oil-and-gas industry are flocking to the White House following the submission of a draft rule that would govern the controversial practice of hydraulic fracturing on public lands."

"NEW ORLEANS -- Stunning new data not yet publicly released shows Louisiana losing its battle with rising seas much more quickly than even the most pessimistic studies have predicted to date."

"Court reduces company's maximum fine a week before trial over blowout that dumped millions of gallons of oil into Gulf of Mexico."

Two retired outdoorsmen -- with help from water researchers -- are testing streamwater in western Pennsylvania. They are struggling to get EPA attention to chemicals they fear could be related to the fracking boom.

"Oil production in the US is expected to rise by record amounts in 2013, thanks to a revolution in drilling techniques. The question is: How long will the oil production boom last?"

"HOUSTON — Unless the Justice Department and BP reach a last-minute settlement, the British oil company will return to court on Monday to face tens of billions of dollars in civil claims from the 2010 explosion on the Deepwater Horizon rig in the Gulf of Mexico that could cripple the company for years to come."

"IOWA CITY, Iowa -- Regent Bruce Rastetter intervened on behalf of ethanol industry leaders who were upset with a prominent University of Iowa researcher for warning that water-intensive ethanol production was threatening Iowa's water supply, records show."

A Texas company quit plans to build a coal-fired power plant -- blaming President Obama's environmental rules, but admitting the low price of natural gas was a key reason.

"Event billed as largest climate protest in US history intended as show of force as Obama nears decision on controversial project."

"A U.S. District Court in Denver handed down a precedent-setting decision on Wednesday, ruling that the Bureau of Land Management must reveal the names of companies or individuals nominating public land for oil and gas drilling."

"Alleging violations of the federal Clean Water Act at the Colbert Fossil Plant, a coalition of environmental groups announced plans to file a lawsuit against the Tennessee Valley Authority on Wednesday."