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To stay atop the oil market, OPEC became OPEC+. But keeping the cartel in sync isn't easy.

Jun 28, 2023
The Saudis invited the Russians to the table and rolled out the red carpet. But the Russians haven't always done what the Saudis want.
OPEC and OPEC+ members break their oil production promises all the time, said Victor McFarland at the University of Missouri.
Joe Klamar/AFP via Getty Images