The Coast Guard earlier this week said its own laboratory testing showed oil from the slick matched oil from BP’s 2010 spill. This latest development indicates the government is not satisfied with BP’s explanation that the oil likely came from a leak in the bent riser pipe that once connected the Deepwater Horizon drilling rig to the Macondo well.  Officials have noted that the pipe lies on the bottom of the sea floor with both ends open.

Now, the Coast Guard says, BP and Transocean have agreed to make satellite observations and to mobilize “ROVs,” or remotely operated vehicles, to examine the original Macondo well area, including the wreckage, debris, and the riser on the sea floor.

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