CNBC | Russia says the oil supply situation has improved but not yet at a 'full recovery' CNBC The agreement was initially brought forward to boost oil prices after years of stalled levels. Oil producing countries are set to meet in June to review the deal. Novak acknowledged that their agreement has worked, but there's still more to be done ... Trump Criticizes OPEC, Calling Oil Prices 'Artificially' High OPEC hits back at Trump after tweet about 'artificially' high oil prices Trump rails against high oil prices, OPEC pushes back |