Study: Oil in Gulf likely came from rig wreckage

Researchers: Oil trapped in sunken rig's wreckage is likely source of Gulf of Mexico sheens

Associated Press

NEW ORLEANS (AP) -- A team of researchers has concluded that pockets of oil trapped in the wreckage of the sunken Deepwater Horizon are the likely source of oil sheens that have been spotted in the Gulf of Mexico near the site of the deadly 2010 explosion on the BP-leased drilling rig.

A newly published study by the Woods Hole Oceanographic Institution and the University of California at Santa Barbara rules out BP's sealed-off Macondo well and natural oil seeps as possible sources of the sheens.

The researchers said their conclusions are based on an analysis of 14 sheen samples collected from the surface of the water during two trips to the Gulf.

Last year, BP PLC said it capped an abandoned piece of equipment that was believed to be the source of a sheen.

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