Ku buuxi weedha soo socota: Sanadkii 1954, AIOC waxay noqotay Shirkadda Batroolka Ingiriiska. Ka dib markii
Afgembigii Iiraan ee 1953, Iran Oil Participants Ltd (IOP), oo ah shirkad haysa, ayaa la aasaasay Oktoobar 1954, London si saliida Iiraan dib loogu soo celiyo suuqa caalamiga ah. Shirkada British Petroleum waxay ahayd shirkad aasaas ka ah shirkadaas iyadoo leh 40% saamiga. IOP waxay maamushay oo maamushay xarumo shidaal oo ku yaalla Iran iyagoo wakiil ka ah NIOC. Si la mid ah heshiiskii &lt;a href="Saudi%20Aramco%23History"&gt;Saudi-Aramco "50/50" ee 1950&lt;/a&gt;, ururka ayaa isku raacay inuu faa'iidada la wadaago Iran 50/50, "laakiin ma furi doono buugaagta xisaabaadka ee xisaabaadka Iran ama ma ogolaan doono Iran inay ku jirto guddiga agaasimayaasha".