Saudi Arabia’s crude stockpiles rose to a record in July after exports by the world’s biggest oil shipper declined for the third time in four months. Commercial petroleum stockpiles increased to 320 million barrels, the highest since at least 2002, from 319.5 million barrels in June, according to data Sunday on the website of the Riyadh-based Joint Organisations Data Initiative. Crude exports slumped 1.2 percent to 7.28 million barrels a day after hitting a record 7.9 million barrels in March. Overseas shipments declined every month since then except in June. Brent crude oil prices have slumped 17 percent this year as Saudi Arabia led the Organization of Petroleum Exporting Countries in boosting production to keep market share amid a global supply glut. The failure of producers to cut output fast enough may require prices to fall near $20 a barrel to clear the surplus, Goldman Sachs Group Inc. estimates. […]