Published: Jun 13, 2010 8:09 PM EDT
Updated: Jun 13, 2010 5:09 PM EDT

SCHRIEVER, La. (AP) - The Coast Guard says it's deploying undersea sensors to get a better estimate of how much oil is gushing from that ruptured well in the Gulf of Mexico.

The latest estimates say the well could have been spewing as much as 2 million gallons of crude a day before BP managed to cap some of the flow earlier this month.
      
Coast Guard Adm. Thad Allen says an accurate measure will only be possible when the well is completely capped.
      
Meanwhile, the White House is joining at least two Gulf states in calling for BP to set up an escrow account to pay claims related to the Gulf oil spill.
      
Obama's top political adviser, David Axelrod, tells NBC's "Meet the Press" that Obama will demand that BP set up an account with "substantial" reserves to pay the claims.