Seaborne oil shipments from the Organization of the Petroleum Exporting Countries will fall by 190,000 barrels a day in the four weeks to Aug. 31, compared with the previous four-week period, U.K.-based tanker tracker Oil Movements said Thursday.

Shipments from OPEC will average 23.69 million barrels a day in the four weeks to Aug. 31, the tracker said in its weekly report.

The figure excludes exports from Angola and Ecuador.