Oil posted its second straight weekly decline as signals of additional crude supplies and a deteriorating global demand outlook loomed over a string of thinly traded sessions.
Turkey halted flows through a twin-pipeline in March after an arbitration court ordered it to pay about $1.5 billion in damages to Iraq for transporting oil without Baghdad's approval.
Lease Sale 261 will offer approximately 12,395 blocks on approximately 67 million acres on the U.S. Outer Continental Shelf in the Western, Central, and Eastern Planning Areas in the Gulf of Mexico.