OPEC and Russia have postponed a Monday meeting to discuss oil output cuts until April 9, OPEC sources said on Saturday, as a dispute between Moscow and Saudi Arabia over who is to blame for plunging crude prices intensified.

The delay came amid pressure from U.S. President Donald Trump for the Organization of the Petroleum Exporting Countries led by Saudi Arabia and its allies, a group collectively known as OPEC+, to urgently stabilise global oil markets.

Oil prices hit an 18-year low on March 30 due to a slump in demand caused by lockdowns to contain the coronavirus outbreak and the failure of OPEC and other producers led by Russia to extend a deal on output curbs that expired on March 31.

OPEC+ is working on a deal to cut the production of oil equivalent by about 10% of world supply, or 10 million barrels per day, in what member states expect to be an unprecedented global effort including the United States.

It should be reminded that oil recovered from this week’s lows of $20 per barrel with Brent settling at $34.11 on Friday, still far below the $66 level at the end of 2019. Prices had their biggest one-day gain ever on Thursday when Trump said he expected Russia and Saudi Arabia to announce a major production cut.