Oil falls as U.S. supplies, speculative length counter OPEC cuts

By Scott DiSavino NEW YORK (Reuters) - Oil fell on Monday as ample U.S. supplies and excess speculative length outweighed OPEC output curbs and rising tensions between the United States and Iran. Brent futures fell $1.09, or 1.9 percent, to settle at $55.72 a barrel, while U.S. West Texas Intermediate crude lost 82 cents, or 1.5 percent, to close at $53.01. "We feel that the bulk of the price decline related to the larger-than-expected increase in net WTI speculative length as well as another he