Brent oil, which serves as a benchmark for Angolan exports, was the third most expensive in the world among 13 crudes from the members of the Organization of Petroleum Exporting Countries (OPEC), only surpassed by Algeria and Equatorial Guinea. According to the OPEC monthly report published this week, among the 13 types of oil that make up the OPEC reference basket, the Angolan Sunflower crop reached US$127.03 in June, also having the highest rise in