"In a major ruling in the oil spill litigation, U.S. District Judge Carl Barbier ruled Wednesday that BP and Anadarko are responsible parties under the Oil Pollution Act of 1990 and are liable for civil penalties under the Clean Water Act for the undersea discharge of oil from the ill-fated Macondo well.

"Ships entering the Great Lakes should be made to kill all the creatures that hitch a ride in their ballast tanks, environmental groups said on Tuesday, challenging as too lax a proposed government standard to combat invasive species."

"TEMPLE, N.H. -- A mild winter across the Northeast is injecting extra uncertainty into maple syrup season, but many producers say they'll just go with the flow, whenever it starts."

"Rising gasoline prices, trumpeted in foot-tall numbers on street corners across the country, are causing concern among advisers to President Obama that a budding sense of economic optimism could be undermined just as he heads into the general election.

White House officials are preparing for Republicans to use consumer angst about the cost of oil and gas to condemn his energy programs and buttress their argument that his economic policies are not working.

"After years of taking farmers to court to assert their patent rights, agri-giant Monsanto Co.is being sued by farmers. Lots of farmers."

"Just four years ago, shale gas king Aubrey K. McClendon told shareholders of Chesapeake Energy that 'finally, we made some new friends this year.'"

"CHICAGO — The wind industry is predicting massive layoffs and stalled or abandoned projects after a deal to renew a tax credit for wind production failed Thursday in Washington."

"Wildlife officials don't usually base hunting policies on how the public feels about an animal. But the black bear seems to be different. The revered king of the forest has bounced back from near-extinction to being a nuisance in some areas. Some states are trying to figure out if residents can live at peace with bears, or if they'd rather have hunters keep numbers in check."

"Royal Dutch Shell's bid to drill in the Arctic this summer took another step forward on Friday when the U.S. Interior Department approved its oil spill response plan for the Chukchi Sea."

"The U.S. and Mexico reached an agreement Monday to cooperate on oil and gas development in the Gulf of Mexico. Signed at a meeting in Los Cabos, Mexico, the agreement would set a process that U.S. companies and Mexico's state-owned Pemex could use to jointly develop waters that straddle the nations' maritime border. It also would provide for the U.S. and Mexican governments jointly to review applications and safety inspections in cases of drilling in the boundary-straddling waters, where oil spills could affect both nations."