An Oklahoma oil and gas company plugged a well that disposes of oil production’s toxic byproduct after an investigation by The Frontier and ProPublica revealed that regulators had approved the well in ...

For starters, it's untaxed, so it isn't legal for road use. But even if your truck is for off-road use only, there are risks when you pump used oil through your vehicle's precious power plant.

Evansville police say the van held 300 gallons of used cooking oil. An industry group puts U.S. theft losses at $300 million ...

Calling something “waste” does not mean that its physical properties are irrelevant. A toxic chemical can poison a river. But ...

The waters of one of Brazil’s most visited cities are often stained by a reddish-orange liquid that flows around beachgoers, kayakers and turtles. A new recycling initiative involving City Hall, state ...

JOAQUIN — The ground is swelling under a small East Texas town along the state border, where oil and gas wastewater is flowing up from old oil and gas wells and bursting into an aquifer used for ...