The agreement between OPEC and Russia came as a surprise for most. Until the Vienna meeting started, there was much pessimism that a deal would be reached and all indications had been that negotiations were deadlocked over the issue of who would cut by how much. The breakthrough seems to have come when Moscow changed its position from “freeze but no production cut” to agreeing to reduce output by 300,000 b/d from the 11.2 million b/d it reached in November. This change, plus the agreement by Baghdad to cut oil production by 210,000 b/d, was enough to convince the Saudis to cut by 486,000 b/d and the other Gulf Arab states would join in for at total Gulf Arab cut of 786,000 b/d. Libya, Nigeria, and Indonesia were left out of the agreement and Tehran was allowed to increase production by 90,000 b/d to 3.8 million – somewhat short of their 4 million b/d goal. Given the bad relations between Riyadh and Tehran, allowing the Iranians to continue increasing production was the toughest part of the deal for the Saudis to swallow.