Salazar, in a speech at the North American Prospect Expo (Nape), recalled briefing President Obama in the Oval Office and meeting with top oil company executives during the tense 87 days after BP's Macondo well blew out in April 2010.

The deep-water incident killed 11 men and the uncontrolled well spilled nearly 5 million barrels of oil into the ocean.

“It was a very unfortunate accident.