"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."

"A bidding war is heating up among users of corn in the United States as livestock feeders and ethanol makers scramble to lock in supplies before extremely low stocks run dry by this summer."

"The federal government unveiled new fuel economy window stickers on Wednesday, for vehicles starting with the 2013 model year, that for the first time include estimated annual fuel costs and the vehicle’s overall environmental impact."

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

"Opponents of a pipeline that would nearly double U.S. imports of Canadian oil-sands crude sued the State Department today in a bid to force speedy disclosure of any contacts it made with a lobbyist for the pipeline's sponsor."

"The disputed share swap and oil exploration agreement between BP and the Russian state-owned company Rosneft has collapsed, leaving some BP investors questioning the company’s future strategy and freeing Rosneft to look for a new partner in Russia."