Anadarko Petroleum, a marginal associate in the ruptured well in the Gulf of Mexico, placed blames on BP for behaving in a reckless manner, trying to distance itself from the most horrible oil spill in the US history.

The increasing proof clearly illustrates that this calamity was avoidable but the direct consequence of BP's irresponsible decisions and actions led to the disaster, Anadarko Chief Executive, Jim Hackett said in a statement issued late on Friday.

Anadarko, which is the owner of 25% of the Macondo well where the Deepwater Horizon rig was drilling, signed an agreement saying that it would reimburse a quarter of the expenses that are associated with the well, unless BP is found culpable of gross neglect.

BP's actions and dealings probably represent gross neglect or willful misbehavior and thus, have an effect on the obligations of the associates under the operating accord, Hackett said.

On April 20, a blast on the Deepwater Horizon took away the lives of 11 personnel, and the well is now emitting millions of gallons of oil into the Gulf of Mexico.

BP hurriedly issued a statement on Friday saying it not at all agrees with the charges, and that Anadarko is refusing to take up the responsibility for oil spill removal expenses and compensation.