What is "petro-islam"

Petro-Islam usually refers to the extremist and fundamentalist interpretation of Sunni Islam—sometimes called " Wahhabism"—favored by the conservative oil-exporting Kingdom of Saudi Arabia. Its name derives from source of the funding—petroleum exports—that spread it through the Muslim world following the October 1973 War. The term is sometimes called "pejorative" or a "nickname". According to Sandra Mackey the term was coined by Fouad Ajami. It has been used by French political scientist Gilles Kepel, Bangladeshi religious scholar Imtiyaz Ahmed, and Egyptian philosopher Fouad Zakariyya, among others.