|An oil refinery in Kirkuk city, north of Baghdad, Iraq. (Photo: AFP/VNA)
These 7 countries are Iraq, Saudi Arabia, the UAE, Kuwait, Gabon, Equatorial Guinea, and Nigeria.
According to the report, the July output of the 13 OPEC members increased 216,000 barrels per day (bpd) to nearly 29 million bpd.
Saudi Arabia's crude oil production recorded the largest increase - 158,000 bpd to more than 10.7 million bpd - followed by the UAE.