"WOLF POINT, Mont. -- It's tough to miss the trains hauling crude oil out of the Northern Plains. They are growing more frequent by the day, mile-long processions of black tank cars that rumble through wheat fields and towns, along rivers and national parks."

"US government scientists have for the first time found direct evidence of toxic exposure in the Gulf of Mexico."

"U.S. gasoline pump prices are poised to reach their lowest level this year as supply expands to a two-decade seasonal high and winter curbs demand."

"LOUISVILLE, Ky. -- A group of Louisville residents who say coal ash from a nearby power plant drifts into their lungs and homes have sued the utility company."

"WASHINGTON –- The federal government isn't doing enough to ensure it collects a 'fair return' for the oil and gas that companies produce from public lands, in part due to policies on revenues for onshore drilling that are nearly a century old, according to a critical report on the Department of the Interior released Tuesday."

"The Interior Department will not be held in contempt over its actions in the aftermath of the 2010 Gulf of Mexico oil spill after the Supreme Court declined on Monday to review an appeals court ruling in the government's favor."

"WASHINGTON — USEC, the sole American company in the uranium enrichment business, said Monday that it would file for bankruptcy early next year, although it hopes to keep operating."

"A study of hydraulic fracturing sites in Colorado finds substances that have been linked to infertility, birth defects and cancer."

"Continental Resources, one of the companies that has committed to ship crude on TransCanada Corp's proposed Keystone XL pipeline, now says the controversial pipeline is no longer needed."