"BP Plc, seeking to reduce potential water pollution fines of as much as $18 billion, will try to convince a judge that less oil spilled in the 2010 Gulf of Mexico disaster than the U.S. claims and that it capped the deep-sea gusher as quickly as possible."

"Critics of hydraulic fracturing, known widely as 'fracking,' have been pushing hard for natural gas companies to disclose all of the chemicals in the fluids that are used in the process. But what if the companies themselves don't even know what those chemicals are?"

"Shell Oil has not disclosed new safety measures since a critical federal report in March, and it has not applied to drill in the Arctic in 2014."

"Senator Tim Scott will vote against President Barack Obama’s nominee to lead the U.S. Federal Energy Regulatory Commission, virtually erasing the possibility of a Senate panel approving the nomination."

"SALEKHARD, Russia -- Russia announced on Tuesday that it had opened a piracy investigation against the crew of a Greenpeace ship after its activists scaled an offshore oil platform in the Arctic last week. The step signaled that the authorities intended to act decisively to thwart more protests against Russia’s ambitious plans to expand energy exploration in the region."

"The leaders of 25 environmental and climate action groups sent an open letter to President Barack Obama on Tuesday, urging him to reject the proposed Keystone XL pipeline and avoid any 'deal-making' with the Canadian government."

"North Carolina’s environment agency has taken the unusual step of returning a federal grant to study streams and wetlands that could be harmed by hydraulic fracturing for natural gas."

"New regulations to oversee hydraulic fracturing of oil and gas wells in Alaska could be issued later this year by state regulators, officials said at a public hearing on Monday."

"Environmental inspections of oil and gas facilities on public lands have jumped nearly twofold since 2007, but federal investigators said Monday that the government is doing a poor job of targeting the riskiest sites."

"Airlines on Monday urged a UN aviation group to back a mandatory global framework to curb airline emissions, saying failure to reach a deal would revive threats of a trade war."