Accepted for presentatin at ISA: International Studies Conference New Orleans, LA, February 17-20, 2010 Paper Title: "The political economy of OPEC as non-cartel and of its two factions: Explaining differences in relations with the U.S.-OECD states and in development trajectories" Participants O'Donnell, Thomas (Author) Affiliatio: New School, NYC & CENDES-Universidad Cental de Venezuela, Caracas Panel: "The Politics of Supply in Global Energy Markets" Time: Friday, February 19, 2010 8:30 AM Location: Marlborough A ABSTRACT: Longstanding research makes clear OPEC does not play a true "cartel" role. Data and historical evidence show it does play a lesser economic-control function within the market-based, one global barrel system. Sometimes able to adjust prices, it dampens market volatility, including via the collusive north-south International Energy Forum, and aids supply security. Aside from quotas, OPEC has enforced price-band agreements with the U.S. and IEA-OECD, and provides access to Saudi surplus during crises. However, not all OPEC states have similar interests or abilities to cooperate with consuming states. Export revenues per capita show OPEC divided, especially during low prices, into two: low absorbers (Arabia, Kuwait, UAE, Qatar) with longterm businesslike planning abilities, and high absorbers (Iran, Iraq, Nigeria, Venezuela, Libya) without. These economic differences largely explain different relations with U.S. and OECD states: high absorbers in conflict or axis of evil, the others U.S. protectorates/allies, and with different development trajectories that undermine sweeping rentier and resourse-curse theories. Data show production increasingly concentrated in OPEC and Persian Gulf, with U.S. policy continually driving high-absorber states to low-absorber politics, esp. Iraq, Iran, Libya and Venezuela.