"America's hydraulic fracturing gold rush portends the greatest environmental disaster of a generation. ... The natural gas industry has spent $747 million lobbying state and federal officials over the past decade, allowing it to continue drilling in 34 states. Few Americans are any richer. But a whole lot more have horror stories to tell."

"BP shut a Norwegian oil and gas field after a potentially dangerous leak, the company said on Tuesday, six days after the incident forced the emergency shutdown of the facility."

"Some of the world's biggest fertilizer companies are banking that the aftermath of the worst U.S. drought in 56 years will boost sales, as U.S. farmers seek to cash in on high crop prices."

"WASHINGTON, DC -- More than 300 public interest groups representing millions of people from all 50 states sent a letter to the U.S. Senate Friday opposing S.3512, the Coal Ash Recycling and Oversight Act of 2012. This bill would remove responsibility for coal ash management from the federal government and hand it to the states."

"AUSTIN -- Exxon Mobil Corp. has reported inadvertent emissions of large amounts of pollutants at its flagship refinery near Houston."

"NEWARK, Ohio -- Becky and Andrew Snedeker spent their first year of marriage living with her parents while searching for their dream home. They found it on James Street in Newark, but now the Ohio Department of Transportation wants to buy and raze it to clean up a known carcinogen in groundwater feet below their property."

"More than 191,000 gallons of toxic chemicals may have been released from the Stolthaven New Orleans petroleum and chemical storage and transfer terminal in Braithwaite during Hurricane Isaac, according to a company report filed Tuesday with the U.S. Coast Guard National Response Center. That's just one day after the Louisiana Department of Environmental Qualty assured the public that monitoring at the facility detected no offsite contamination."

Oil and gas drilling can usually protect groundwater when enough effort is taken to install well casings and cement them properly. But even those safeguards may fail in karst formations, as the Bureau of Land Management's experience in New Mexico shows.