oil

The holiday season can be stressful, but for energy workers, December is turning out to be especially tough. Oil and gas firms have laid off close to 56,000 Texans in the past year.

Canada's potentially lucrative oil sands business faces serious economic challenges. It has some concerned about its future as environmental critics look for ways to keep the oil in the ground.

Oklahoma's earthquake boom is now a national security threat. No damage has been reported, but operators at the hub are on high alert for a disruption that would ripple through the U.S. energy market.

Illicit oil sales generate large revenues every day for the Islamic State. The U.S. airstrikes could dry up a significant stream of cash for the group.

The bust of the coal-bed methane industry has left Wyoming responsible for the exorbitant cost of plugging thousands of wells. The price tag for dealing with deep oil and gas wells may be even higher.

One of the most controversial aspects of the nuclear deal is the unfreezing of more than $100 billion in oil revenues. But concerns have been raised about what Iran might do with this windfall.