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Global petroleum coke supply seen dipping further

  • Spanish Market: Petroleum coke
  • 10/04/26

Rising supply from the US Gulf early this year after around nine months of lower production, as well as the return of exports from Mexico and Venezuela, looked set to put pressure on high-sulfur petroleum coke prices by the second quarter. But effects of the Middle East war and recent accidents at US and Mexican refineries have again reduced production, keeping prices supported.

Higher coke production was expected to put some pressure on the market this year after limited supply throughout much of last year supported fob US Gulf coke prices. US coke output sank to a 20-year low in 2025 because of refinery shutdowns and lighter crude slates, but rose to a 13-month high in January, largely because of favorable heavy sour crude economics.

Disruptions to exports from Mexico and Venezuela contributed to keeping supply tight in January.

But Venezuelan exports began to increase in February, although they were still below year-earlier levels, despite the US loosening sanctions restrictions on this supply.

Offers of high-sulfur coke to India and China from Mexican state-owned Pemex's 340,000 b/d Olmeca refinery, known as Dos Bocas, have increased over the past couple of weeks. Mexico planned to continue increasing domestic refining output throughout 2026, and market participants expected this year's exports to surpass 2025 levels.

But a fire that broke out in a coke storage pit at the Dos Bocas refinery on 9 April may have damaged one of the towers of its coking unit, which could cut coke output from the refinery again. Pemex has not disclosed a timeline for restarting the coking unit, but a market participant said it may return to operating at 50pc capacity next week. The refinery also reported a fire in mid-March that killed five people. Pemex has not said the two incidents are related, but some market participants suggested that recent efforts to increase domestic refining output may have put some strain on Dos Bocas' infrastructure.

A fire at Valero's 380,000 b/d refinery in Port Arthur, Texas, on 23 March is also expected to cut US Gulf coke production in the near term. A delayed coking unit was one of the units affected by the fire, which has led the company to postpone April coke shipments to May. Valero has still not provided a timeline for restoration of service.

The fire compounds the effects of the war in the Middle East, which broke out on 28 February. Limited crude exports from the region have raised crude prices, as well as narrowing the spread between heavy and light crudes. High-sulfur supply from Saudi Arabia, a major supplier to India and China, has also been disrupted. The 400,000 b/d Aramco/Sinopec Yasref refinery in Yanbu has reduced coke production, sources said, while shipments have been blocked from the 460,000 b/d Aramco/TotalEnergies Satorp refinery at Jubail, which is located within the Mideast Gulf. The latter refinery sustained damage to one processing train in Iranian attacks over the evening of 7-8 April.


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