Libya's oilfield closures spread on Wednesday as the Sarir field almost completely halted output, two field engineers told Reuters, amid a political dispute over control of the central bank and oil revenue.
Authorities in the east, where most of Libya's oilfields lie, declared on Monday that all production and exports would be halted.
Sarir was producing about 209,000 barrels per day (bpd) before output was reduced, the engineers said.
Force majeure had already been announced on exports at the 300,000 bpd Sharara oilfield and this week Reuters has reported disruptions at El Feel, Amal, Nafoora and Abu Attifel.
In July, Libya, an OPEC member, was producing about 1.18 million barrels of oil per day.
The move to shut off Libya's main source of revenue comes in response to the Tripoli-based Presidency Council sacking Central Bank of Libya (CBL) chief Sadiq al-Kabir, prompting rival armed factions to mobilize.
Head of the Tripoli-based Government of National Unity (GNU) Abdulhamid al-Dbeibah, installed through a UN-backed process in 2021, said this week that oilfields should not be allowed to be shut "under flimsy pretexts".
On Tuesday, US Africa Command General Michael Langley and Chargé d'Affaires Jeremy Berndt met Khalifa Haftar, head of the Libyan National Army that controls the country's east and south.
"The United States urges all Libyan stakeholders to engage constructively in dialogue," with support from the United Nations Support Mission in Libya (UNSMIL) and the international community, the US Embassy in Libya said on social media platform X.
Oil prices were little changed on Wednesday. They rallied on Monday partly due to the planned production halt in Libya.
