Data for the OPEC charts below are from the OPEC Monthly Oil Market Report. All OPEC data are through August 2018 and in thousand barrels per day.
OPEC 15 crude only production was up 278,000 barrels per day in August to 32,565,000 bpd. Most of that increase was Libya, up 256,000 bpd.
July OPEC production was revised down 38,000 barrels per day.