尼日利亚石油部长周五在一次会议上表示，美国页岩油革命的成功将令非洲石油生产国的石油出口收入大幅削减25%。

Nigeria's oil minister, said at a conference on Friday,U.S. shale gas revolution success will make African oil-producing countries oil export revenues sharply by 25%.

　　Diezani Alison-Madueke表示：“页岩油已经成为非洲石油生产国面临的最严峻的威胁之一，将导致油价下调以及全球石油供应过剩。”

Diezani Alison - Madueke said:"Shale oil has become the African oil producing countries facing one of the most serious threat,Will lead to cut oil prices and global oil supply glut."

　　她表示，作为结果，非洲石油生产国的石油出口收入将削减25%。

She said,As a result,African oil producers of oil export revenue would be cut by 25%.