The Saudi-led Organization of the Petroleum Exporting Countries will convene a virtual meeting on Thursday with other oil-producing nations including Canada and Russia, aiming to negotiate a truce in a Saudi-Russia fight for market share that has cratered oil prices over the past month. Saudi Arabia has delayed pricing its crude for May delivery as it awaits the result of the meeting. The move represents a cease-fire in a price war that has contributed to a 70% drop in oil prices since early March, when Saudi Arabia and Russia…