West Texas Intermediate crude pared gains as U.S. supplies unexpectedly increased last week.
U.S. inventories rose 431,000 barrels, the Energy Information Administration reported. Analysts surveyed by Bloomberg had expected a decrease of 2.45 million. Stockpiles tumbled 29.9 million in the four weeks ended July 19, the biggest such decline since 1982. Prices headed for their biggest monthly rally since August as the U.S. economy grew more than projected in the second quarter.