Brent crude futures fell 18 cents, or 0.2 percent, to $82.66 a barrel by 1415 GMT while West Texas Intermediate US crude futures lost 3 cents to $76.38.

Both benchmarks plunged more than 3 percent overnight after US government data showed a large build in oil stocks. A EU ban on Russian refined products is set to take effect on Feb. 5, potentially dealing a blow to global supply.

EU countries will seek a deal on Friday on a European Commission proposal to set price caps on Russian oil products after postponing a decision on Wednesday because of divisions among member states, diplomats said. The European Commission proposed last week that from Feb. 5 the EU apply a price cap of $100 a barrel on premium Russian oil products such as diesel and a $45 per barrel cap on discounted products such as fuel oil.

Meanwhile an OPEC+ panel endorsed the producer group’s current output policy at a meeting on Wednesday, leaving production cuts agreed last year unchanged amid hopes of higher Chinese demand and uncertain prospects for Russian supply.

OPEC+ agreed to cut its production target by 2 million barrels per day — about 2 percent of global demand — from November last year until the end of 2023 to support the market.