OPEC and its Russian-led partners have postponed a meeting until Thursday. The arrival of a vaccine is a blessing for oil producers. Hopes for a vaccine, however, are causing a massive headache for members of the global oil cartel and its Russian-led partners. Some of its members—financially battered and facing internal turmoil—are reaching the end of their ropes. The Organization of the Petroleum Exporting Countries met Monday and was scheduled to meet with Russian-led producers Tuesday to decide whether to go along with their next scheduled production increase of two million barrels a day, delay… Continue reading your article with a WSJ membership