OPEC and Russia have postponed a meeting due on Monday to discuss oil output cuts until April 9, OPEC sources say, as a row between Moscow officials and Saudi Arabia over who is to blame for plunging crude prices intensified. The delay came amid pressure from US President Donald Trump for the Organisation 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 now working on a deal to cut the production of oil equivalent to about 10 per cent of world supply, or 10 million barrels per day, in what member states expect to be an unprecedented global effort including the United States. The US, however, has yet to make a commitment to join the effort and Russian President Vladimir Putin on Friday put the blame for the collapse in prices on Saudi Arabia – prompting a firm response from Riyadh on Saturday. “The Russian Minister of Energy was the first to declare to the media that all the participating countries are absolved of their commitments starting from the first of April, leading to the decision that the countries have taken to raise their production,” Saudi Energy Minister Prince Abdulaziz bin Salman said in a statement reported by state news agency SPA. Putin, speaking on Friday during a video conference with government officials and the heads of major Russian oil producers, said the first reason for the fall in prices was the impact of the coronavirus on demand. “The second reason behind the collapse of prices is the withdrawal of our partners from Saudi Arabia from the OPEC+ deal, their production increase and information, which came out at the same time, about the readiness of our partners to even provide a discount for oil,” Putin said. OPEC sources, who asked not be identified, said the emergency virtual meeting planned for Monday would likely now be postponed until April 9 to allow more time for negotiations.