Of all the Gulf Coast states, Louisiana is the most at risk to credit pressures resulting from the BP oil spill, Moody’s Investors Service said in a report on Monday.

The doubling of the estimate of oil leaking from the damaged well to as much as 40,000 barrels a day means the Deepwater Horizon blowout will have far greater environmental and economic consequences than the grounding of the Exxon Valdez in 1989, analyst Ted Hampton said.

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