OPEC+ is no more, after a torrid 24 hours in which Russia overturned the balance of power in the oil world, leaving the members of OPEC+ dazed and confused, shocking Saudi which now faces social unrest with the price of oil far below Riyadh's budget, and - in a repeat of the Thanksgiving 2014 OPEC massacre - sending oil prices plunging by the most since the financial crisis.

And now, Bloomberg has the stunning backstory behind Friday's announcement that Russia is quitting its output deal with OPEC and its allies, after last week's Vienna summit meant to back a proposal by oil producers to cut output collapsed, causing a 10% plunge in oil prices, with some markets seeing their biggest one-day falls since the financial crisis. 

Driving a stake right through the heart of his former OPEC colleagues, Russian Energy Minister Alexander Novak said that "considering the decision taken today, from April 1 of this year onwards, neither we nor any OPEC or non-OPEC country is required to make (oil) output cuts."

With global fears over coronavirus already severely impacting the oil market (down 30% since the start of the year), and with the Russians surprising oil ministers gathered at OPEC headquarters by suddenly abandoning a plan meant to keep oil prices steady, the biggest shock was felt by the Saudis, because as Bloomberg puts it, Putin has just effectively dumped crown prince MbS to start a war on America's shale oil industry:

Alexander Novak told his Saudi Arabian counterpart Prince Abdulaziz bin Salman that Russia was unwilling to cut oil production further. The Kremlin had decided that propping up prices as the coronavirus ravaged energy demand would be a gift to the U.S. shale industry. The frackers had added millions of barrels of oil to the global market while Russian companies kept wells idle. Now it was time to squeeze the Americans.

After five hours of polite but fruitless negotiation, in which Russia clearly laid out its strategy, the talks broke down. Oil prices fell more than 10%. It wasn’t just traders who were caught out: Ministers were so shocked, they didn’t know what to say, according to a person in the room. The gathering suddenly had the atmosphere of a wake, said another.

Heading into Friday's critical session, OPEC had been pushing for an additional 1.5 million barrels per day of cuts, reducing production by 3.6% of the world's total supply, which would have required Russia and other non-OPEC states (but mostly Russia) to contribute 500,000 bpd to the extra cut.

Bloomberg quotes Russian state-run think tank Institute of World Economy and International Relations president Alexander Dynkin as saying, "The Kremlin has decided to sacrifice OPEC+ to stop U.S. shale producers and punish the U.S. for messing with Nord Stream 2."