Robert Malone (R), Chairman and President of BP America speaks among four other oil company executives at a hearing on Capitol Hill in Washington, April 1, 2008. The executives (L-R), Senior Vice President of Exxon Mobil Stephen Simon, President of Shell Oil John Hofmeister, Vice Chairman of Chevron Peter Robertson and Executive Vice President of ConocoPhillips John Lowe joined Malone in testimony at the House select committee hearing on energy independence and global warming. REUTERS/Jason Reed (UNITED STATES)