OPEC crude oil production rose further in July, in the latest sign the cartel’s efforts to reduce output and drain a global supply glut are falling short. The Organization of the Petroleum Exporting Countries’ output rose by roughly 0.5%, to 32.87 million barrels a day last month, up by 172,600 barrels from June. The uptick, which was smaller than the prior month’s increase, was driven by higher production in Libya, Nigeria…