Tuddsa n Tmura Timsiǧwin n Upitṛul (OPEP) tesmektay-d amulli wis 50 n tqacuct tamezruyant n yimḍebbren n tmura timaslaḍin, i d-yellan deg Dzayer seg 4 mɣir 6 meɣres 1975, d tadyant i d-yellan d tameqrant i lmend n uskasi ɣef tmusal tistratijiyin deg unrar n ulẓuẓ n upitṛul d unmireg deg taɣult n Teẓwert deg uswir agraɣlan.
Taqacuct n Dzayer temmug-d ddwi tselwit n uselway aneṛḥum Houari Boumediene, s udraw n yinemɣuren n tmura timaslaḍin n OPEP, jar-asent Tagelda Tasaɛudit, Lɛiraq, Iṛan, Lkuwit, Venezwila, Libya, Nijirya, Indunisya, Imarikaniyen, Qaṭar d Ekwadur.
Taqacuct-a tella-d d tikkelt i d-ibeddlen umezruy n tuddsa-aya, deg i tessegder tanaya n tmura yettfarasen ɣef yiɣbula-nsent tigamanin yernu tesbedd-d tamlilt-nsent deg ussebded n unagraw adamsan anmaḍal amaynu.
Jar tneɣsutin timeqqranin i d-yettwaddmen deg tqacuct-a, yella-d uwekked n yiwanaken imaslaḍen ɣef tḍuli n usegder n uɣmar-nsen ɣef wammad d usenzi n yiɣbula-nsen n upiṭrul, asuddes n udiwenni ameqqran tgara n tmura timezwura d tsuda tigraɣlanin akken ad ḍemnen arkad deg ulzuz n upiṭrul, d useɣnew n tsemseddut n unmireg adamsan jar yiwanaken yettfarasen apitṛul ɣef usegder n usnegmu adamsan d usemgirred n tdamsa.
Yettwaɣtes ɛad, deg tqacuct n Dzayer, Asenduq n OPEP i Usnegmu Agraɣlan, d tasentayt yesɛan iswi n udhal n tmura yettnegmun s tedrimt d tallelt tasnatwilant, ɣef usnerni n temsetlelt jar tmura tinfarasin d tdamsanin timeẓẓyanin..
Aɣella n smumṛaw n yiseggasen, OPEP tkemmal deg ussisen-nnes bac ad teḍmen asemnekni d tɣellist n ulzuz n upiṭrul, s ussemres n tisnuddsiwin i lmend n wuguren n wass-a.
