Hermanos Díaz Refinery

A 102,500 barrels per calendar day petroleum refinery in Santiago, CU, operated by Cupet.

Record

Rated capacity

102,500 bpd (atmospheric crude distillation, calendar day)

Status

Operating

Operator

Cupet

Parent

Cubapetróleo Unión

Supplier graph

bomforge.com/companies/cupet-santiago

Coordinates

21.8932, -77.7400

Notes

Santiago

What coverage reports

— no disruption on the record

0 reported in 12 months

2024-092026-08

stories filed per month · red = a disruption

These are counts of what publishers filed about this plant, not an operating status. A quiet month means nobody named this facility that month, which is a fact about coverage and not about the plant. Where this site states how a refinery is running it says so in the facts table above, from the curated dataset, and cites it there.

Wire

1. 15 Aug 2026 General Low
   Hermanos Díaz Refinery completes third test with Cuban crude and produces 2,000 tons of naphtha and 10,000 tons of fuel oil

   The Hermanos Díaz oil refinery in Santiago de Cuba completed its third run of national crude, producing 2,000 tons of naphtha and 10,000 tons of fuel oil.

   CiberCuba + 2 other outlets · matched hermanos, diaz
2. 27 Apr 2026 General Low
   The Santiago de Cuba refinery also produced naphtha, fuel oil, and diesel from domestic crude oil
   Granma · matched santiago

Every item names this facility by city or plant name in its headline or summary. Operator-only mentions never attribute. Headlines and links belong to the publishers named.