OPEC Rivals Become Unwitting Allies in Push for Oil-Market Share

When the Saudi kingdom decided last year that OPEC should keep pumping to counter a surge in U.S. shale oil, Iran spearheaded resistance to the idea, saying output cuts were needed to buoy prices. Still a critic, Iran is nonetheless poised to amplify the strategy as it ramps up crude exports with the end of sanctions.

“Iran’s return is effectively the Saudi policy on steroids,” said Mike Wittner, head of oil-market research at Societe Generale SA in New York. “The policy is that low-cost Middle East crude should be gaining market share, and that it’s shale and other expensive non-OPEC supply that should be cut. So to use the Saudis’ own logic, as far as Iranian production goes -- bring it on.”