The Abu Dhabi National Oil Company (Arabic: شركة بترول أبو ظبي الوطنية), known by its acronym ADNOC, is the state-owned oil company of Abu Dhabi, United Arab Emirates. It is the world's 12th largest oil company by production. As of 2021, the company has an oil production capacity exceeding 4 million bpd with plans to increase to 5 million bpd by 2030. It is the United Arab Emirate's largest oil company.
ADNOC's output was roughly flat at about 2.5 million barrels per day during the 1990s. It stood at 2.9 mbpd in 2008. Although its financial indicators are difficult to assess as the company has been described as secretive, it has also been described as efficient and well managed. ADNOC is one of few oil companies in the world to make a substantial investment to increase oil production amid growing pressure to reduce output due to climate change.
In 2024, ADNOC's oil products represented 564 Mt of CO2 emissions, which was 1.46% of global CO2 emissions.
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History
In November 2019, ADNOC received approval from the emirate's Supreme Petroleum Council to list its flagship Murban crude oil as a futures contract on an international stock exchange. Murban is a highly prized grade of crude oil that accounts for about half of the UAE's total oil output of about 3 million barrels per day.
A joint venture between ADNOC and the Abu Dhabi Developmental Holding Company (ADQ) was launched in July 2020 to invest in chemicals projects in the planned Ruwais Derivatives Park. ADNOC will have a 60% stake while ADQ will hold a 40% share.
In December 2021, ADNOC and Abu Dhabi National Energy Company PJSC (TAQA) announced a $3.6 billion project to aim to reduce the carbon footprint of ADNOC's offshore production operations by more than 30%.
In December 2022, it was announced ADNOC had acquired a 24.9% stake in Austrian integrated oil, gas, and petrochemical company, OMV.
In 2023, ADNOC awarded $17 billion in engineering, procurement and construction (EPC) contracts for the Hail and Ghasha Offshore Development project.
One contract is a joint venture with the National Petroleum Company and Saipem S.p.A and the second one with Technimont S.p.A.
In December 2023, ADNOC agreed to acquire OCI's entire stake in ammonia and urea producer Fertiglobe for $3.62 billion.
In October 2024, ADNOC announced the acquisition of German chemical company Covestro for $16.3 billion. In July 2025, an investigation was opened by the European Commission to assess if the agreement involves financial backing or subsidies from the UAE government, which could distort the European Union’s internal market. There were concerns that the ADNOC’s takeover may involve a valuation and terms that could be unfair for unsubsidized investors. The investigation came after the Commission had approved the deal following the regular merger review process in May 2025.
Operations
As of November 2019, the UAE holds the sixth-largest proven reserves of oil in the world at 105 billion barrels. Most of these reserves are located in Abu Dhabi.
ADNOC is one of the world's largest energy companies measured by both reserves and production. ADNOC has 16 subsidiary companies in upstream, midstream, and downstream stages of production. ADNOC develops both onshore and offshore gas fields. The company operates two oil refineries, Ruwais Refinery and Umm Al Nar. ADNOC exports natural gas in the form of liquefied natural gas (LNG) in addition to producing supplies for local electricity and water utilities, to other domestic industries including petrochemicals plants, and for re-injection into reservoirs.
In May 2026, ADNOC announced it would accelerate the West‑East Pipeline project, doubling its oil export capacity through the port of Fujairah in order to bypass the Strait of Hormuz. The expanded pipeline is expected to become operational by 2027.
Foreign direct investment
Major investments were made in ADNOC in 2019 by US asset managers BlackRock and KKR and Italian investment firm Eni. The US firms acquired about 40% of ADNOC's pipeline assets for about $4 billion, while Eni SpA took a 20% stake in Abu Dhabi Oil Refining Company for over $3 billion. Austria's OMV also invested about $2.8 billion, for about 15% of ADNOC's refining business, in partnership with Eni. KKR furthered its investment in 2025 by taking a minority stake in the subsidiary ADNOC Gas Pipeline Assets.
Singapore's sovereign wealth fund, GIC, completed a deal with ADNOC in May 2019 that gives GIC a 6% share in ADNOC's pipeline infrastructure. The deal was valued at $600 million.
Headquarters
ADNOC Headquarters is a skyscraper office complex located in Abu Dhabi. The building incorporates energy efficiency and sustainable engineering technologies, such as a double skin façade, photovoltaic glazing, and LED exterior lighting. Designed by HOK and opened in 2001, the overall building complex consists of an office tower with more than 65 floors, a corniche club, a crisis management center, a heritage museum, and other support facilities.
Abu Dhabi Marathon
ADNOC is the title sponsor of the ADNOC Abu Dhabi Marathon held annually in mid-December. The marathon usually begins and ends at the ADNOC Group headquarters, situated on the iconic Corniche Road in Abu Dhabi City.
Leadership and corporate governance
Sultan Ahmed Al Jaber
Sultan Ahmed Al Jaber is the Minister of Industry and Advanced Technology in the UAE, CEO of ADNOC, the UAE's special envoy for climate change, and was Hey head of the COP28 climate summit. Under Al Jaber's leadership, ADNOC has invested in renewable energy and carbon capture, while also expanding its carbon business against trends in the industry, and with investments in carbon outstripping those in renewables. Sultan is also the president of the climate change conference COP28 which is being held in Dubai, UAE. He and the UAE have come under fire for greenwashing. Following the summit, Al Jaber announced that ADNOC would continue to invest in oil.
Supreme Petroleum Council
The Supreme Petroleum Council is the highest governing body of oil, gas, and similar industry-related activities in the Abu Dhabi. The council was formed in 1988. The council is tasked with supervising all oil and gas companies that operate in Abu Dhabi and the United Arab Emirates and acts as the board of directors for ADNOC.
Operating companies
ADNOC operates numerous companies with different functions, including exploration and production; processing and refining; marketing and distribution.
Exploration and production of oil and gas
ADNOC Onshore works onshore and in shallow coastal water. It is previously known as Abu Dhabi Company for Onshore Petroleum Operations, ADCO. ADNOC Onshore operates primarily in Abu Dhabi. The company was originally known as Petroleum Development (Trucial Coast). It received its first concession on January 11, 1939, but did not begin geological operations until after World War II. The first commercially viable oil discovery was made at Bab in 1960. In 1962, the company was renamed the Abu Dhabi Petroleum Company. Exports began to flow from the Jebel Dhanna terminal on December 14, 1963. Abu Dhabi's government acquired 25% equity in the company in 1973 and increased its stake to 60% in 1974. The company started using the name Abu Dhabi Company for Onshore Petroleum Operations, ADCO, in 1978. ADNOC Onshore's primary exports are from the Jebel Dhanna and Fujairah terminals. ADNOC have a 60% share, the remaining 40% is split (CNPC (8%), BP (10%), Total (10%), Inpex (5%), CEFC (4%) and GS Energy of South Korea (3%)). In December 2018 ADNOC transferred China Energy's stake in onshore to China ZhenHua Oil Company, awarding the company a 4% stake.
ADNOC Offshore is the largest offshore oil producer in Abu Dhabi. It is ADNOC's dedicated offshore arm and is responsible for the development and delivery of oil and gas resources in Abu Dhabi waters. It was formed through the consolidation of two of ADNOC's upstream oil and gas companies: Abu Dhabi Marine Area Operating Company (ADMA-OPCO) and Zakum Development Company (ZADCO). With reorganisation, and the expiry of the 65-year-old ADMA concessions, the offshore concessions are now split by fields. ADNOC 60% then the 40% is split into Upper Zakum (Exxon / INPEX), (minor fields Umm Al Dalk, Satah (Inpex 40%)), Lower Zakum (TotalEnergies, ENI, ONGC, INPEX), Umm Shaif and Nasr (Total, ENI), Sarb and Umm Lulu (CEPSA, OMV).
ADNOC Drilling is ADNOC's oldest subsidiary. It was previously known as National Drilling Company, NDC. ADNOC Drilling is the largest drilling company in the Middle East. It drills for oil both onshore and offshore in Abu Dhabi. ADNOC currently has a 95% equity in ADNOC Drilling after energy services giant Baker Hughes, acquired a 5% stake (valued around $11 billion or AED40.4 billion) in 2018.
In September 2021, ADNOC Drilling announced its intention to list another 11% of shares in the company on the Abu Dhabi Securities Exchange (ADX) through an Initial Public Offering (IPO). On October 3, 2021, the company went public on the Abu Dhabi bourse, and became the most successful listing of all time in the emirate, jumping 30% on its first-ever day of trading.
Processing, refining and chemicals
ADNOC Gas Processing (formerly known as GASCO) is a natural gas producing company and the largest gas processing complex in Abu Dhabi. The company was established in 1975. It was formerly known as Abu Dhabi Gas Industries Limited (GASCO). ADNOC Gas Processing is a subsidiary of the ADNOC, which owns 68% stake in the company. Other shareholders are Shell Abu Dhabi (15%), Total SA (15%) and Partex (2%). The company was established in 1975. The company's current CEO is Sultan Ahmed Al Jaber. Shayma Al Mazrouei, Environment Department Team Leader in ADNOC Gas Processing's Environment, health and safety (HSE), Division, received the Sustainability Manager of the Year Award 2020 for her continuous contribution to environmental conservations through an innovative water reduction program.
It manages over 3,000 km (1,900 mi) of pipeline network and 26 processing trains. In 2000 ADNOC Gas Processing started a $1.5 billion tender for its gas terminals expansion. ADNOC launched a Downstream Investment Forum in 2018, which attracted more foreign investments for the Ruwais Refinery. For the last 40 years, the ADNOC has been refining Murban grade crude, which is extracted from its onshore fields in the Emirate of Abu Dhabi. The "Crude Flexibility Project" (CFP) has made significant progress in 2020, with the ADNOC having a 73% project delivery which is constantly increasing from the refining capabilities in Ruwais. The CFP is to be completed in mid-2022, allowing the ADNOC to process up to 420,000 bpsd (Barrels per Stream Day) of the heavier grades of crude oil at the Ruwais refinery, which processes in total 840,000 bpsd. The necessary physical infrastructure required for the CFP has been put into place, only the structural elements such as two new fractionators and 24 atmospheric residue desulfurizer reactors were installed in the months of June and July 2020.
ADNOC signed two EPC contracts in 2020, one with Petrofac Emirates LLC, a subsidiary of Petrofac Ltd., and the other with a joint venture with Petrofac and Sapura Energy Bhd. for the development of ADNOC's Dalma gas development project. Together, the contracts are valued to be worth over $1.65 billion, and they are scheduled to be completed by 2022.
ADNOC introduced a new category in its enterprise HSE Awards for energy management to recognize efforts made by companies, employees and contractors. This award helps to promote energy awareness and increase the involvement and accountability of individuals.
Marketing and distribution
ADNOC Logistics & Services was formed by merging ESNAAD, IRSHAD, and ADNATCO. ADNOC Logistics & Services is 100% owned by ADNOC. The new company has a workforce of about 4,000 people.
In August 2020, Chinese company Wanhua partnered with ADNOC Logistics and Services to create AW Shipping Ltd., which owns and operates product tankers and a flotilla of very large gas carriers (VLGCs). AW Shipping delivers liquefied petroleum gas (LPG) from ADNOC and other global suppliers to Wanhua's sites in China and globally. In November 2018, a 10-year contract for (LPG) supply was forged between the companies.
ADNOC Distribution (ADNOCDIS:UH) operates hundreds of service stations across the UAE, provides bunkering services at Zayed Port, aviation fuel services at most of the country's airports, and sells its own brand of lubricants throughout the Gulf region. In September 2020 ADNOC completed "the largest block placement of a publicly listed" company in the Gulf region valued at $1 billion. The placement, which was aimed at institutional investors, increased the subsidiary's free float to 20%.
Abu Dhabi Crude Oil Pipeline LLC (ADCOP) owns a 406-kilometre (252 mi) pipeline that carries crude oil from an ADNOC Onshore collection center in Abu Dhabi to the Fujairah oil export terminal, which provides access to international shipping routes.