BENGHAZI, Libya: Libya has lifted force majeure at some of its main ports and is resuming exports, the National Oil Corporation said Thursday.

“Exports will resume immediately from Zueitina and Ras Lanouf, and will continue at Brega ... exports will resume from Es Sidra as soon as possible,” NOC Chairman Mustafa Sanalla said.

He said Libya’s U.N.-backed government in Tripoli and a parliament based in eastern Libya both backed reopening the ports which had been seized on Sept. 11 by forces loyal to eastern commander Khalifa Haftar.

Haftar – who was promoted to field marshal by Libya’s internationally recognized parliament late Wednesday – has been an outspoken opponent of the Government of National Accord in Tripoli, and his seizure of the four ports from a rival force aligned with the GNA had raised fears of fresh conflict over Libya’s oil resources.

“NOC is in charge of the ports,” Sanalla said Thursday, a day after visiting Zueitina. “They are secure, and we have been in contact with our foreign commercial partners.”

Western powers had condemned Haftar’s seizure of the ports and had said they were ready to prevent any exports attempted outside the GNA’s authority.

“[This] had the potential to escalate, with potentially devastating consequences for the nation and our petroleum industry,” Sanalla said. “Instead, we have found a shared interest in letting the oil flow, and the wisdom of that decision needs to be recognized.”

Libya could raise output to 600,000 barrels per day within a month and to 950,000 by the end of the year from about 290,000 currently, Sanalla said this week, but said NOC would need new funds and blockaded pipelines in southwest Libya would need to be reopened.

Conflict since Libya’s 2011 uprising has reduced its oil output to a fraction of the 1.6 million barrels per day the Organization of Petroleum Exporting Countries member once produced.

A port official at Ras Lanouf said a tanker had docked to load crude Thursday, the first to do so since at least 2014, and that a second tanker had docked at Brega, which has remained open.

Both were arranged before Haftar’s Libyan National Army seized control of the ports, the official said.

Production also resumed at the Nafoura oil field Thursday, which was shut in November 2015, an oil official said. The field previously produced 25,000-30,000 bpd.

Libya’s internationally recognized parliament relocated to the east of the country in 2014 after armed rivals took control of Tripoli.

The GNA, set up in Tripoli in March, is meant to replace competing parliaments and governments in Tripoli and the east, but has failed to win endorsement from eastern factions aligned with Haftar.

He is a former ally of late dictator Moammar Gadhafi and has expanded his power over the past two years, waging a military campaign against Islamists and other opponents. He is distrusted by many in the west of the country who see him as a new military strongman in the making.

In July, Tripoli’s NOC, led by Sanalla, signed a unification deal with a rival NOC set up in Benghazi in the east that is loyal to pro-Haftar factions.