Waxad ku qortaa sii wadida faqradahan:- Sanadkii 1954 shirkada AIOC waxay noqotay British Petroleum Company. Afgembigii Iiraan ee 1953 kadib
, Iranian Oil Participants Ltd (IOP), oo ah shirkad haysata, ayaa la aasaasay Oktoobar 1954, London si ay saliida Iran dib ugu soo celiso 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".