The credit rating of BP continues to tumble with the rating agencies. Moody's downgraded the rating on Friday, the oil company three notches, from A2 to Aa2, "to reflect the worsening of the expected impact of the oil spill in the Gulf of Mexico."

The agency explains reflect the strong upward revision of the volume of oil spills every day in the Gulf of Mexico, the persistent failure to seal the well and the staggering costs associated with damage from the disaster."The oil spill will have a lasting negative impact on cash flow generation of the company and its financial position for a number of years," the agency said in a note.

Moody's believes that the creation of a fund by BP of estimates of 20 billion dollars to compensate victims of the disaster is "a moderately positive development": the pressure of U.S. government could indeed become more flexible but the substance is in no If an expenditure ceiling of BP.

The agency states that all notes of the group remains under surveillance.

The three rating agencies have become so degraded the note of the oil company is the largest British company listed on the London Stock Exchange.Last week, Fitch downgraded BP six notches, to BBB (cons AA), Thursday, Standard & Poor's downgraded two notches, from A to AA-.

Nevertheless, BP wins the title at 2.45% 368.50 pence shortly before 15:30 at the London Stock Exchange. In New York, where the group is also listed, the share was up 3.12% to 32.70 dollars.

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