The original concession agreement was made with Petroleum Development (Trucial Coast) Ltd. On 11th January 1939, but geological work did not begin until after the Second World War. Exploratory drilling began in Abu Dhabi in February 1950.

The First commercial oil discovery was made at Bab in 1960, and exports began from the Jebel Dhanna terminal on 14th December 1963. In 1962, the Company was renamed the Abu Dhabi Petroleum Company, ADPC. On 1st January 1973, the Government of Abu Dhabi acquired a 25% interest, which was increased to 60% as from 1st January 1974. The Government interest is held by the Abu Dhabi National Oil Company, ADNOC.

ADCO was incorporated under Law No. 14 for 1978, on 8th October 1978 and has been responsible, since February 1979, for operations in the concession area, which after relinquishments, now covers more than 21,000 square kilometers.

The Company exports from two major terminals: Jebel Dhanna and Fujairah, and produces mainly from eleven oil fields: Bu Hasa, Asab,         Sahil,  Shah,  Bab,  Al Dabb'iya, Rumaitha,  Shanayel, Huwaila, Qusahwira and  Bida Al-Qemzan

ADNOC and Total sign New ADCO Concession Agreement

In January 2015, The Abu Dhabi National Oil Company, ADNOC, and Total signed the new 40-year ADCO Concession Agreement for the ADCO onshore oil fields in the Emirate of Abu Dhabi

ADNOC said that by this agreement, Total, which presented the best technical and commercial offers, receives a 10% participating interest in the new concession and is appointed Asset Leader for the South East and Bu Hasa integrated Asset Groups, with effect from 1st January 2015, while additional companies will be added soon.

ADNOC Onshore will continue to operate the integrated asset groups of Bab, Bu Hasa, South East (Sahil, Asab, Shah, Qusahwira, Mender) and Northeast Bab (Al Dabb’iya, Rumaitha, Shanayel).

ADCO plans to reach 1.8 million barrels a day production in 2017.

ADNOC Onshore Shareholders

Apart from ADNOC (60%), ADNOC Onshore has now Total E&P Holding UAE B.V (10%), JODCO Onshore Limited (5%), Korea GS E&P Pte Ltd (3%), BP Abu Dhabi Limited (10%), CNPC International (Hong Kong) Limited (8%) and China Energy Foundation Investment Limited (4%) as their International Oil company shareholders.


ADNOC Gas Processing was born in 1978, in the heart of the United Arab Emirates – its capital Abu Dhabi – as an answer to the vision of the late Sheikh Zayed bin Sultan Al Nayhan who believed in the sound utilization of the Emirate’s significant gas resources.  

The incorporation and establishment of ADNOC Gas Processing as a joint venture between the Abu Dhabi National Oil Company (ADNOC), Shell, Total, and Partex, and the integration of ATHEER (a wholly owned ADNOC Company) in 2001, supported ADNOC Gas Processing in realizing the vision to be one of the most innovative, respected and caring companies in the gas and hydrocarbon industry. 

ADNOC Gas Processing’s commitment in meeting the expectations of its various stakeholders – shareholders, employees and community, regulatory bodies and non governmental bodies, was recently recognized through the renewal of the Joint Venture Agreement originally signed in 1978.  

The new Agreement, which is now set to run until September 30, 2028, will allow ADNOC Gas Processing to hold the distinction of being one of the major players in the global gas and hydrocarbons market, conducting onshore gas processing and the transportation of gas and liquid products, contributing to the GDP of the UAE in a sustainable and responsible manner.


By partnering with other government agencies, the private sector, NGOs and global environmental agencies, we embrace international best practice, innovation and hard work to institute effective policy measures. We seek to raise environmental awareness, facilitate sustainable development and ensure environmental issues remain a top priority of our national agenda.


ADNOC Offshore

ADNOC Offshore, is a major producer of oil and gas from the offshore areas of the Emirate of Abu Dhabi. The Company prides itself in being a pioneering petroleum organisation in this part of the world, having completed over 45 years of oil and gas production.  

The story of ADNOC Offshore and its progression over the years is reflected in the phenomenal transformation of Abu Dhabi itself from an island characterised by simple dwellings, with fishing and pearl-diving as the main source of living, to a modern cosmopolitan city, encompassing multi- faceted businesses.  

In the early days, surveys carried out by oil companies revealed the existence of oil in huge commercial quantities in the seabed of two oil-bearing fields: Umm Shaif and Zakum.The two fields became major oil and gas producers, yielding hydrocarbons for more than 48 years, and up to the present time.  

Over those years, the Company underwent substantial changes, in terms of both its scope of operations and its manpower. It has, at the same time, managed to strike a balance between introducing the latest technology and the necessity of training its workforce to use it.


The Taweelah A1 plant has been refurbished and expanded to 385 million litres per day of clean water and 1,430MW. Abu Dhabi Water and Electricity Authority (ADWEA) signed a contract with TotalFinaElf and Tractebel in July 2001 for the purchase, expansion and refurbishment of the plant. The four-year project to expand the facility (one of the biggest cogeneration plants in the world) was completed in 2006. A further expansion is now planned. 

The contract was for $1.5bn, and the plant was commissioned on 1 May 2003 – on time and within budget. ADWEA signed a long-term contract to buy power and water from the plant, which meets about a quarter of Abu Dhabi's water and power needs.

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Abu Dhabi National Oil Company (ADNOC) was established in 1971, to operate in all areas of the oil and gas industry and since then has steadily broadened its activity establishing companies and subsidiaries and creating an integrated oil and gas industry in Abu Dhabi. 

Today, the company manages and oversees oil production of more than 2.7 million barrels a day which ranks it among the top ten oil and gas companies in the world.   

The Supreme Petroleum Council (SPC), chaired by H.H. Sheikh Khalifa Bin Zayed Al-Nahyan, President of the UAE and Ruler of Abu Dhabi, formulates and oversees the implementation of Abu Dhabi petroleum policies.  

Over the past three decades, ADNOC has expanded its business activities, enhanced its competitive position and managed to become one of the world's leading oil companies with substantial business interests in upstream and downstream activities, including transportation, shipping, marketing and distribution.   

ADNOC's efforts in the exploration and production field have concentrated on assessing undiscovered reserves and optimizing hydrocarbon recovery by improving the reservoir management. ADNOC is committed to sustainable development, ensuring a harmonious balance between people's needs and Earth's resources, while its track record in HSE sets the standard for the rest of the Arabian Gulf.   

In the last few years significant achievements were made in the expansion and development of gas fields to meet increased demand from industry gas users and gas injection requirements in order to enhance the oil and condensate recovery from the producing fields.   

ADNOC has 14 subsidiary companies working in the various fields of the oil, gas and petrochemical industry as well as crude oil and gas transport and services. They include ADNOC Onshore, ADNOC Offshore, ADNOC Gas Processing, ADNOC LNG, ADNOC Refnining, ADNOC Drilling, ADNOC Fertilizers, BOROUGE, ADNOC Logistics & Services and ADNOC Distribution. 

Dolphin Energy

In 1999, the government of Abu Dhabi established Dolphin Energy Limited to implement the Dolphin Gas Project. This unique strategic energy initiative began gas production in July 2007. The Project involves production and processing of natural gas from Qatar's offshore North Field and transportation of the processed gas by subsea pipeline to the UAE and Oman.

In addition, the company undertook other important energy-related developments such as the Al Ain – Fujairah Gas Pipeline. This 182-kilometer pipeline was completed in December 2003 and commissioned in January 2004. This created the first ever cross-border refined natural gas transmission in the history of the GCC.

Then in December 2010, Dolphin Energy finalized the 244-kilometer Taweelah – Fujairah Pipeline. Today, it is transporting vital gas supply to the eastern region of the UAE.

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In the early seventies, and during a visit to an oil production facility, the late Sheikh Zayed Bin Sultan Al Nahyan noticed the flaring of associated gas into the atmosphere and inquired how this can be stopped. This was the background against which ADNOC LNG  was established in 1973 to become the first LNG production company in the whole Middle East and North Africa (MENA) region. An agreement was signed to supply LNG and LPG to the Tokyo Electric Power Company (TEPCO). The Company started with two production trains and added a third one in 1994 with a total production of over 8 million tons of LNG, LPG, and other products. 

For the past four decades, ADNOC LNG has been the regional pioneer in LNG and LPG production and marketing, thanks to the company’s compliance with the best international practices in the fields of industrial reliability and integrity, building on the history and expertise of its shareholders, ADNOC, Mitsui & Co. Ltd., BP and Total.