Talos Energy LLC of Houston says it's working on plans for a permanent cement plug in an inactive well that leaked last week off Louisiana. It says it has not yet resumed production on two active ...

It may be days or even weeks before BP is able to permanently plug the Deepwater Horizon oil well. The leak is sealed — but scientists say putting a permanent plug on it could damage the well and ...

Workers today are expected to complete construction of a concrete, permanent plug for a leaky valve near the sewage treatment plant to stop the flow of contaminated water into the Arkansas River.