BP has reached an $18.7 billion settlement with the federal government and five states, effectively ending litigation stemming from the 2010 Deepwater Horizon rig explosion and subsequent oil spill.

Around six gallons of oil spilled earlier in the week in Laurel, causing a recreation area to close and cleanup in T. Howard Duckett Reservoir.

There could be about a million 'orphan' oil and gas wells across the U.S. As they age, they can leak greenhouse gases or ...