OPEC crude oil output
* OPEC ministers failed to agree on an official output ceiling at their December 4 meeting in Vienna. The group had previously maintained a 30 million b/d ceiling that came into effect in January 2012. No individual country quotas were distributed under this ceiling. OPEC will hold its next ministerial meeting on June 2 in Vienna.
* OPEC and non-OPEC producers met on April 17 in Doha in a bid to coordinate oil strategy but failed to agree on a mooted production freeze.
* Indonesia reactivated its membership of OPEC at the December meeting. The estimate for Iraq includes volumes from semi-autonomous Iraqi Kurdistan.
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