Obama is scheduled to meet with top BP executives today at the White House. Ahead of the meeting, BP America President Lamar McKay testified before the House Energy and Commerce Committee along with the CEOs of ExxonMobil, Chevron, ConocoPhillips and Shell. Democratic Congress member Ed Markey of Massachusetts prodded McKay to apologize for BP’s faulty reporting of the spill size.

Rep. Ed Markey: “Please, one final chance: apologize for getting that number wrong.”

Lamar McKay: “We are sorry for everything the Gulf Coast is going through. We are sorry for that and the spill.”

In one of several heated moments, Republican Congress member Cliff Stearns of Florida told McKay he should resign.

Rep. Cliff Stearns: “Do you know what, Mr. McKay, 'The buck stops here' means? You know, that you take full responsibility? Now, Mr. Markey had asked you for an apology. I really think, in light of the performance of you as a CEO and what has occurred, I really think you should be resigning as chairman of BP America. I mean, it’s really outrageous that you sit here and tell us that you’re going to punt to the Unified Command, when we’ve had eleven people killed, we’ve had a huge environmental damage, and you’re still sitting here as a CEO of BP?”