Oil prices fall on concerns supply to rise as producers wrangle on cuts

MELBOURNE (Reuters) - Oil prices fell on Thursday, reversing gains in the previous session, on concerns that supply will rise if major producers are unable to agree to extend the depth of output cuts that have supported recent gains. Brent crude futures fell 1%, or 41 cents, to $39.38 a barrel as of 0157 GMT.U.S. West Texas Intermediate (WTI) crude futures fell 1.6%, or 61 cents, to $36.68 a barrel.Saudi Arabia and Russia, two of the world's biggest oil producers, have agreed to support..