CNBC | OPEC makes last-ditch bid to save oil deal CNBC OPEC was trying on Monday to rescue a deal to limit oil output as tensions grew among the producer group and non-OPEC member Russia, with top exporter Saudi Arabia saying markets would rebalance even without an agreement. OPEC experts started a ... How Iran, Russia Could Derail Oil-Production Deal Opec meeting to focus on Donald Trump amid fears of falling oil prices Oil prices gyrate as OPEC heavyweights head to Vienna |