Strong Evidence Emerges of BP Oil on Seafloor, Wall Street Journal, December 9, 2010:
[Scientists] have speculated that the substance—found as deep as 2,300 meters below the surface— was oil from the BP blowout. But, until now, they haven't had this evidence from chemical tests.
David Hollander, an oceanographer at the University of South Florida, said in an interview that he and colleagues have just completed tests showing that the chemical profile of oil they found in Gulf sediment matches that from the blown-out BP well. ...
The federal government also has found oil matching Macondo oil in Gulf
Laura Folse, director of science and technology for BP's Gulf Coast
restoration effort, declined to say whether BP found oil matching
Macondo oil in the Gulf sediment.
Read the report here.