Seaborne oil shipments from the Organization of the Petroleum Exporting Countries will fall by 230,000 barrels a day in the four weeks to June 22, compared with the previous four-week period, U.K.-based tanker tracker Oil Movements said Thursday.

Shipments from OPEC will average 23.7 million barrels a day in the four weeks to June 22, the tracker said in its weekly report.

The figure excludes exports from Angola and Ecuador.