CNPC China National Petroleum: Fortune 500 #4 2026

CNPC China National Petroleum Corporation ranked fourth in the Fortune Global 500 in 2023 — behind only Saudi Aramco, Sinopec, and State Grid — with consolidated group revenue of approximately $470–500 billion USD. China’s largest oil and gas enterprise by output, assets, and workforce, CNPC China National Petroleum operates across the full hydrocarbon value chain: upstream exploration and production, refining, natural gas transmission, LNG imports, oilfield services, and an international upstream portfolio spanning more than 30 countries. With approximately 1.5 million employees, it is one of the largest corporate workforces on earth.

CNPC and PetroChina — Understanding the Structure

CNPC China National Petroleum Corporation is a wholly state-owned enterprise, supervised directly by China’s State-owned Assets Supervision and Administration Commission (SASAC). It is not publicly listed. Its commercial subsidiary, PetroChina Company Limited, holds the majority of CNPC’s commercial oil and gas assets and trades on the Shanghai Stock Exchange (601857) and Hong Kong Stock Exchange (0857). CNPC retains approximately 86% of PetroChina.

This distinction matters when reading financial data. Most publicly reported operational and financial figures — production volumes, revenue, refining throughput — refer to PetroChina, not to CNPC as a consolidated group. The CNPC group as a whole is larger, incorporating entities outside the PetroChina perimeter.

Pipeline infrastructure adds another layer of structural complexity. In 2019 and 2020, CNPC — alongside Sinopec and CNOOC — transferred its domestic pipeline network to PipeChina (China Oil and Gas Pipeline Network Corporation), a new state entity created to operate China’s national grid as a regulated common carrier. PipeChina now operates approximately 100,000 kilometres of oil and gas pipelines inside China. CNPC retains a shareholding in PipeChina but no longer controls or operates the national grid directly.

Upstream Production — China’s Domestic Oilfields

Daqing Oilfield in Heilongjiang province remains CNPC’s most historically significant domestic asset. Discovered in 1959 and elevated to a national symbol of industrial self-reliance by Mao Zedong, Daqing peaked at approximately one million barrels per day in 1976. Current output has declined to around 800,000 bpd — still a major producing asset, though mature and in long-term natural decline.

Changqing Oilfield, straddling Shaanxi, Gansu, and Ningxia provinces, has in recent years surpassed Daqing as China’s highest-output producing field by combined oil and gas equivalent. Changqing’s growth reflects CNPC’s ability to develop lower-permeability, unconventional-adjacent resources across the Ordos Basin.

The Tarim Basin in Xinjiang is CNPC’s primary natural gas frontier. CNPC’s Tarim Oilfield Company operates ultra-deep wells exceeding 8,000 metres — among the deepest in the world — targeting gas accumulations beneath the Taklimakan Desert. The 2026 drilling programme continues to push depth records in pursuit of output targets that underpin China’s coal-to-gas switching agenda. Liaohe Oilfield (Liaoning) focuses on heavy oil and steam injection operations, while the Sichuan Basin is a major conventional natural gas producing area feeding southern Chinese demand centres.

CNPC China National Petroleum — International Portfolio

CNPC China National Petroleum has built one of the most extensive international upstream portfolios of any national oil company. Iraq is the largest single position: CNPC holds approximately 37% of the BP-led Rumaila operating organisation, which manages the Rumaila oilfield — Iraq’s largest, producing approximately 1.4 million barrels per day. CNPC also holds interests in South Rumaila and West Qurna-1.

In Kazakhstan, CNPC is a shareholder in Kashagan — one of the world’s largest oil discoveries — and acquired PetroKazakhstan in 2005, consolidating a major position in the country’s upstream sector. Russia has become an increasingly significant supply source since 2022: CNPC processes growing volumes of ESPO blend crude via the East Siberia–Pacific Ocean pipeline, which crosses into China’s northeast.

Abu Dhabi remains a strategically important Middle East position. CNPC holds an 8% stake in ADCO’s onshore concession, originally awarded in 2014 and renewed in 2024 — securing access to Abu Dhabi’s prolific onshore fields for the next concession term. CNPC also holds upstream positions in Venezuela, Algeria, Turkmenistan, Myanmar (Shwe offshore gas field), and historically in Sudan and South Sudan, where CNPC built the country’s pipeline export infrastructure before operations were disrupted by conflict.

Natural Gas, LNG and Pipeline Infrastructure

CNPC China National Petroleum is China’s largest natural gas producer, with PetroChina reporting output exceeding five trillion cubic feet per year. The Central Asia-China Gas Pipeline — running approximately 1,833 kilometres from Turkmenistan through Uzbekistan and Kazakhstan into western China — carries around 55 billion cubic metres per year at capacity, connecting the world’s fourth-largest gas reserves directly to Chinese consumption. This pipeline, built and operated by CNPC, remains one of the most strategically significant energy corridors in Asia. The Myanmar-China oil and gas pipelines are retained CNPC international infrastructure, separate from the PipeChina transfer.

On LNG imports, PetroChina Gas and New Energy Company manages CNPC’s receiving terminal interests. Key facilities include Dalian LNG terminal in northeast China — the first LNG import facility in the region — alongside Rudong LNG in Jiangsu and Tangshan LNG in Hebei, which together give CNPC significant import capacity serving northern and eastern Chinese demand.

For an overview of the companies shaping global pipeline infrastructure, see our ranking of the top pipeline companies worldwide.

Refining, Retail and 2026 Strategy

Via PetroChina, CNPC China National Petroleum operates refining capacity of approximately 170–180 million tonnes per annum across its network. The most significant recent addition is Guangdong Petrochemical in Jieyang — a 40 MTA integrated refining and petrochemicals complex that began operations in 2023 and is ramping toward full capacity in 2026. When fully online, it will rank among China’s largest single refinery sites. PetroChina’s fuel retail network spans approximately 22,000 petrol stations across China.

The 2026 strategic picture for CNPC is shaped by four parallel priorities: continuing the Tarim ultra-deep gas programme to meet domestic gas targets; absorbing increased volumes of Russian ESPO crude through northern refining capacity; progressing carbon neutrality commitments toward the 2050 group target, including green hydrogen pilot projects at Daqing and Yumen oilfields; and consolidating the Abu Dhabi ADCO position following the 2024 concession renewal.

CNPC sits at the centre of China’s integrated energy security architecture — upstream, midstream, and downstream — in a way few national oil companies can match in scale. For context on where the world’s largest upstream producers rank by output, see our analysis of the largest upstream oil and gas companies globally, and our ranking of the top downstream oil and gas companies by refining and petrochemicals capacity.

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