Growth in non-Opec+ crude production may force Opec+ to pause or cut its planned output hike of 400,000 barrel per day.

This is according to consultancy Alphatanker, which is forecasting a likely oversupply of oil and falling prices next year.

"There are indications that high prices could be temporary as, moving into 2022, the market should return to oversupply, with the degree of oversupply likely to be determined by Opec+ output," the company said.