 Nyorai kupfuurira kweiyi ndima - Kubva muna 1974 kusvikira muna 1981, kuwanda kwemari yebhanga razvino nokuda kwenhengo dzose dzeOPEC kwakasvika US450 bhiriyoni, pasina kuwedzera kwemakumi emakore akatevera okuwandisa kwemari. Makumi mapfumbamwe ezviuru zveiyi surplus yakaunganidzwa nenyika dzeArab dzePersian Gulf neLibya, neIranwo ichiunganidzawo mafuta akakosha kusvikira muna 1978 isati yatambura nhamo dzeshanduko, hondouye zvirango. 