Nigerian crude differentials remained under downward pressure on Tuesday due to ample supplies, Reuters reports.

There are around 15 July-loading cargoes available as well as the bulk of the 67-cargo August loading plan, traders said, or over 70 million barrels.

There were signs that offers of some grades for loading in August are being lowered. Qua Iboe was heard to be on offer at dated Brent plus 75 cents, down slightly from as high as dated plus 80 cents reported on Monday. Traded levels remain lower.