The Organization of the Petroleum Exporting Countries and allies, known as OPEC+, complied with 115% of agreed output curbs in May, the source said. OPEC said this week the April figure was 114%.

OPEC+ is returning 2.1 million barrels per day (bpd) to the market from May through July as part of a plan to gradually unwind last year's record oil output curbs, as demand recovers from the pandemic.

(Reporting by Rania El Gamal; Writing by Alex Lawler; Editing by Peter Graff)