"Oil spill in the Gulf of Mexico may be contributing to a dramatic dive in the region's oyster harvest. Prices are up and the harvest is down, ever since the 2010 BP oil spill, but the exact cause remains unclear.""

"Environment Canada says the watchdog does not have the authority to investigate complaints made in 2010 alleging that tarsands’ tailings ponds are seeping into groundwater."

"WASHINGTON -- Two loaded and two empty crude oil trains operate daily over Amtrak’s Northeast Corridor in Maryland and Delaware, according a document submitted by the passenger railroad in response to a Freedom of Information Act request."

"Russian president calls ExxonMobil a 'model of cooperation' for its partnership with Rosneft in the face of Western sanctions against the Russian oil company. The energy giants are drilling Russia's first well in the arctic Kara Sea, an area with huge reserves of oil and gas."

"The much-debated Keystone XL pipeline could produce four times more global warming pollution than the State Department calculated earlier this year, a new study concludes."

"Enbridge says it consulted with regulatory agencies and communities for a year and a half to select the best route, which faces intense public opposition."

"BAGHDAD — The crisis gripping Iraq escalated rapidly on Thursday with a re-energized Islamic State in Iraq and Syria storming new towns in the north and seizing a strategic dam as Iraq’s most formidable military force, the Kurdish pesh merga, was routed in the face of the onslaught."

"Former Vice President Gore is warning investors to pull their stock in coal assets or face devastating financial consequences."

"An email shows federal and provincial authorities allowed Canadian Natural Resources Limited, under investigation for a serious oilsands leak, to collect some evidence in the probe."

"President Obama unveiled $12 billion in new pledges from the private sector and government institutions on Tuesday to help strengthen Africa's electric power infrastructure."