The forceful takeover of several oil export terminals by eastern Libya militia leader Khalifa Haftar has been welcomed by the country’s top oil official, who has promised the immediate resumption of exports. But it has divided the Presidential Council (PC) and drawn robust criticism from several of Libya’s international partners.

The Libyan National Army (LNA) has taken control of three export facilities on eastern Libya’s ‘Oil Crescent’: 450,000 b/d-capacity...