MediumI Geo-Economics & Chokepoints22 September 2026, Tuesday

Valve number 7 on Libya's Sharara pipeline is shut and the NOC reports a loss of 130,000 barrels a day

An armed group closed a valve on the Sharara-Zawiya crude oil line on the night of 21 September; Libya's National Oil Corporation announced a production loss of 130,000 barrels a day on 22 September and warned it may declare force majeure.

According to Euronews, a valve was closed on the night of Monday 21 September on the line connecting the Sharara field, roughly 700 kilometres south of Tripoli, to the Zawiya export terminal. According to the English service of Asharq Al-Awsat, Libya's National Oil Corporation said on Tuesday 22 September that the point closed was valve number 7 on the line and that the daily loss had reached about 130,000 barrels. Sharara, which produces roughly 350,000 barrels a day at full capacity, accounts for about a third of national output.

The corporation announced that the closure had caused pressure to build up inside the line, that technical teams had been unable to reach the area and that it might have to declare force majeure if the interruption continued; the most recent such declaration was in January 2024. The Zawiya refinery, 45 kilometres west of Tripoli, is also at risk of shutting down. The corporation did not identify the armed group; at this point which formation was responsible could not be independently verified. The incident followed a one-week ultimatum issued by the petroleum facilities guards to 7 fields on 16 September.

Talay assessment

Bottom line

The closure of a single valve carrying a third of Libyan output shows that the country's export capacity remains a bargaining chip for armed groups. Although a daily loss of 130,000 barrels is small within global supply, it narrows marginal supply at a time when disruptions originating in Hormuz continue. The most likely path is a partial resolution within a few weeks through bargaining over the demands; a declaration of force majeure would suspend export contracts outright.

Likely effects

Global oil supplyNegativeWeeks
A loss of 130,000 barrels a day will not move the price on its own, but coming on top of the Saudi east-west line and the Hormuz disruptions it thins the marginal supply buffer and limits downward movement in the price.
Libyan public financesNegativeWeeks
An interruption at a field equal to a third of output creates a direct gap in a budget whose sole revenue line is oil; every day of closure depresses export earnings and external payments.
Mediterranean refining marginsNegativeWeeks
The risk of the Zawiya refinery halting and the loss of light Libyan crude push buyers in the Mediterranean basin towards alternative grades; the cost of substitution narrows refining margins.
Türkiye's energy importsNegative1–6 months
For an energy-dependent Türkiye, narrower supply from the Mediterranean and an entrenched price premium enlarge the import bill and, through fuel costs, complicate the inflation path.

Possibilities, ranked

1
Partial reopening through bargaining50%
Agreement is reached on the demands, the valve is opened within a few weeks and Sharara output returns gradually to the 350,000 barrel band; force majeure is not declared.
Watch: An NOC announcement that output has returned to normal and the reissue of loading programmes from Zawiya
2
A declaration of force majeure30%
The interruption drags on and the NOC declares force majeure; the Zawiya refinery halts, export contracts are suspended and losses rise above 130,000 barrels.
Watch: A formal NOC force majeure statement and loading cancellations at the Zawiya terminal
3
The shutdown spreads to other fields20%
Closures begin at the fields named in the 16 September ultimatum; Libya's total output falls by several hundred thousand barrels and a clear premium builds into the price.
Watch: New closure reports at the Wafa, El Hamsa or El Feel fields

Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.

Market reaction

Indicators affected

Brent▲ upside risk
Libyan crude oil exports▼ −130,000 b/d
Zawiya refinery▼ closure risk

Historical context