 imeẓla yeṭṭfen tafarest n usiweḍ s tregwa d uɛebbi n hydrocarbures ;  Asiweḍ aɣelnaw n hydrocarbures ;  imeẓla n uɛemmer d usuffeɣ s usagen d unafag d usiweḍ n yifuras imihawen , wid ittefsaden s lɛejlan neɣ wid icudden ɣer wayen yaḥwaǧ ustan aɣelnaw .