U.S. oil futures settled with a modest gain on Friday, ending higher for the week after the Organization of the Petroleum Exporting Countries and its allies reiterated their commitment to output cuts. Prices for the U.S. benchmark, however, ended below the session’s highs, briefly turning lower for the session afterAljazeera reported that Libyan commander Khalifa Haftar announced a conditional lifting of a months-long blockage of oilfields and ports by the Libyan National Army. That fed expectations for higher global crude supplies. October West Texas Intermediate oil rose 14 cents, or 0.3%, to settle at $41.11 a barrel on the New York Mercantile Exchange. Front-month prices rose 10.1%, marking the strongest weekly rise since the week ended June 5, according to FactSet data.