Coast Guard: Another oil sheen discovered near Gulf disaster site

Another oil sheen has been reported in the Gulf of Mexico near the site of the 2010 Deepwater Horizon disaster off Louisiana, the U.S. Coast Guard said Thursday.

The Coast Guard said in a statement that BP, owner of the Macondo well that blew out, and Transocean, owner of the rig that exploded, have received approval to proceed with another subsea camera investigation of the wreckage and wellhead site.

The move comes after a sheen was reported by BP on Nov. 2 and verified by satellite imagery, the agency said. Robotic cameras will be used starting Dec. 3 to determine the source of the sheen.

An earlier sheen was discovered at the site in September. It was later determined to have originated from a piece of equipment on the seafloor that had been used in a failed effort to stop the flow of oil to the sea from the Macondo well following the disaster. A cap and plug were successfully put in place and no further oil emissions from the containment dome have been observed, the Coast Guard said.

The Coast Guard said BP and Transocean are being asked to develop options for “permanent remediation of oil that could still be contained within wreckage in the vicinity of the original Deepwater Horizon incident.”