"Proposed federal clean-air rules could have a profound impact on American Electric Power, leading to an increase in electricity bills, the closing or partial closing of 11 power plants and the loss of 600 jobs, the company said."

"First came lumber certified as environmentally friendly, then seafood. Now a move is afoot to give gravel -- blasted out of open-pit mines, then hauled out using diesel-belching trucks -- the green seal of approval."

"U.S. dependence on imported oil fell below 50 percent in 2010 for the first time in more than a decade, thanks in part to the weak economy and more fuel efficient vehicles, the Energy Department said on Wednesday."

"At Chevron's annual general meeting Wednesday, the oil giant's chief executive John Watson, the Board of Directors and shareholders were greeted by over 150 activists, who traveled to San Ramon from throughout the world. They came from Angola, Indonesia, Nigeria, Alaska and Ecuador to share their stories of the human and environmental degradation Chevron had unleashed in their communities."

"Shareholders of Massey Energy Co. asked a judge on Thursday to block the company's pending acquisition unless they are allowed to pursue claims that company directors ignored safety for profits and should be held accountable for a mine explosion that killed 29 workers last year."

Regulators from the Commodity Futures Trading Commission filed suit Tuesday against several traders charging they manipulated crude oil markets in 2008, driving up prices.