Dangote Refinery is seeking millions of barrels of U.S. crude oil, according to a document reviewed by Reuters.

The refinery, with a capacity of 650,000 barrels per day, aims to operate at full capacity soon, potentially becoming Africa’s largest refinery this year or next.

The tender document, shared by two traders, indicates that the refinery is looking to purchase two million barrels of West Texas Intermediate (WTI) Midland crude each month for a year, starting in July.

Meanwhile, Nigeria has a surplus of its own light sweet crude grades.

Traders reported that Nigeria's May-loading cargoes are nearly sold out, with at least 30 June cargoes still available.

Despite the availability of local oil, WTI might not necessarily be cheaper than Nigerian crude.

The cost will depend on factors such as the timing of the sale and oil delivery, according to two other trade sources.

Additionally, Angola's July loading program is expected to be announced soon, even as several June-loading cargoes remain available.