Nationwide supplies rose 9.3 million barrels last week: API Libya, Nigeria boosting output as OPEC seeks production cuts Oil extended losses from the lowest close in more than a month after weekly industry data showed U.S. crude stockpiles expanded, exacerbating an inventory glut. Futures lost as much as 1 percent in New York after falling 6.1 percent the previous three sessions. Crude supplies rose by 9.3 million barrels last week, the American Petroleum Institute was said to report Tuesday. Government data Wednesday is also forecast to show stockpiles gained. OPEC members Libya and Nigeria are boosting output , providing a challenge to the group’s effort to finalize an agreement to curb production and stabilize prices. Oil is continuing its retreat from near $50 a barrel, triggered by the failure of the Organization of Petroleum Exporting Countries’ to agree on country quotas Friday as part of implementing the group’s output […]