Oil advanced a third day as skepticism among U.S. lawmakers over a nuclear deal with Iran undermined prospects that the OPEC producer will bolster crude exports.
Futures climbed 1.3 percent in New York. President Barack Obama is dispatching three cabinet members to brief lawmakers as a Senate committee prepares to take up a bill that will give Congress 60 days to review any final agreement with Iran. Drillers in the U.S. reduced the number of active rigs seeking oil to the fewest since December 2010, according to Baker Hughes Inc.
