U.S. President Barack Obama (2nd R) and Vice President Joe Biden (3rd R) meet with BP executives in the Roosevelt Room of the White House, in this handout photo taken and released June 16, 2010. BP has reached a preliminary agreement to put $20 billion into an escrow account to pay damage claims from the Gulf of Mexico oil spill, a source with knowledge of the process said on Wednesday. Pictured (L-R): BP CEO Tony Hayward, BP Chairman Carl-Henric Svanberg, BP General Counsel Rupert Bondy, BP Managing Director Robert Dudley, Senior Obama Advisor Valerie Jarrett, Labor Secretary Hilda Solis, Attorney...