OPEC crude production rose by about 400,000 barrels per day (bpd) in August, reaching 28.55 million bpd, according to a Bloomberg survey published on Wednesday. Saudi Arabia accounted for just over half of the increase, restoring barrels previously curbed under voluntary cuts. The United Arab Emirates and Nigeria also contributed, while Libya managed modest gains as security conditions improved around key terminals. The production rise comes as OPEC+ ministers are preparing to meet this Sunday, with speculation building that the alliance could…