ZADCO's mandate was to develop the Upper Zakum field on behalf of ADNOC and for the benefit of the shareholders in the joint venture, Abu Dhabi National Oil Company (ADNOC), ExxonMobil, and Japan Oil Development Company Ltd. (JODCO).

 
Besides Upper Zakum , the Company operates Umm Al Dalkh, and Satah fields. Crude oil from Upper Zakum, Umm Al Dalkh and Satah fields is pumped via main oil lines to Zirku Island for further processing, storage and export.

Zirku Island is located 140 Kms. north west of Abu Dhabi. With its advanced oil and gas installations, Zirku is considered the main industrial base for the processing, storage and export of oil from Upper Zakum, Umm Al-Dalkh and Satah Fields.

The company adopts the latest technologies in developing and operating these oil fields, with health, safety and environment concerns in mind, making it a leading operating company in the oil industry in the U.A.E.