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Sources say that Motiva Texas refinery will be doing coker work in 2019, and CDU replacements in September 2026.

Motiva Enterprises will perform maintenance on a coker this December and overhaul its large crude distillation system in September 2026, according to people familiar with the plant's operations. The refinery produces 640,500 barrels per day.

A Motiva spokesperson failed to respond on Tuesday when asked for comments about the planned maintenance of the Port Arthur refinery in the United States, the largest.

Sources did not specify which of the cokers in the refinery would undergo maintenance before the end 2025.

Two cokers are available at the refinery. DCU-1 is capable of producing 54,000 bpd, and DCU-2 can produce 110,000 bpd.

Sources said that the work was called a pitstop, which means it would be shorter than the planned full overhaul of the CDU VPS-5, with a capacity of 350,000 bpd, scheduled to start in September.

Sources said that the work on VPS-5 was expected to last 60 days. Other units supplied by VPS-5 would also be closed for work.

Cokers can convert residual crude oil to motor fuels, or into petroleum coke that can replace coal.

CDUs start the refining by converting crude oil into feedstocks that are used in all other refinery units.

VPS-5, the largest CDU at Motiva's refinery, is located in the VPS-5 building. (Reporting and editing by Erwin Seba)

(source: Reuters)