Oil nudges down ahead of U.S. data; OPEC jostling weighs

By Sabina Zawadzki LONDON (Reuters) - Oil prices nudged down in late European trade on Tuesday, retreating from positive territory as traders digested a flurry of comments from OPEC states about the prospects of an output cut and ahead of U.S. crude inventory data. U.S. West Texas Intermediate (WTI) crude futures fell by 4 cents to $50.48 a barrel. Analysts said that oil would trade in a range ahead of crude oil inventory data from the American Petroleum Institute, due at 2030 GMT, followed by o