China National Oil and Gas Exploration and Development Company Ltd. — universally abbreviated as CNODC (Chinese: 中国石油天然气勘探开发公司) — is the dedicated overseas investment and operations arm of China National Petroleum Corporation (CNPC), the Chinese state-owned oil and gas major. CNODC is incorporated as a limited company (有限公司) under Chinese law and is headquartered in Beijing, China. It is a wholly owned subsidiary of CNPC, holding the formal mandate to exclusively manage all of CNPC's international upstream oil and gas investments, overseas production operations, and associated downstream activities outside China's borders.
CNODC functions as CNPC's primary legal vehicle for cross-border equity participation, meaning that whenever CNPC acquires or holds stakes in overseas joint ventures — including refineries, pipelines, and upstream E&P assets — it is CNODC, rather than CNPC itself or its listed subsidiary PetroChina, that typically holds the participatory interest.
Mandate and Global Scale
CNODC is described as a specialised company exclusively authorised by CNPC to manage overseas oil and gas investment, operation, and production activities. Its portfolio spans a complete oil and gas industrial chain encompassing:
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Upstream oil and gas exploration and development
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Midstream pipeline operation
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Downstream refining and petrochemicals
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Oil product sales and marketing
As of early 2026, CNODC operates and manages 80 projects across 31 countries worldwide, across all major hydrocarbon-producing regions including Central Asia, Africa, the Middle East, South America, and the Asia-Pacific. It constitutes one of the largest international oil company portfolios of any national oil company subsidiary globally.
Kazakhstan Asset Portfolio
Kazakhstan represents CNODC's single most significant country exposure, built up since CNPC's first entry into Kazakhstan in 1997. CNODC's Kazakhstani asset portfolio is among the most diversified held by any foreign energy company in the country, spanning upstream, midstream, and downstream operations:
Upstream (E&P):
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Participatory interest in CNPC-Aktobemunaygaz JSC — one of the largest oil producers in Kazakhstan, operating fields in the Aktobe region
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Interest in PetroKazakhstan Inc. upstream assets (South Turgai Basin, Kyzylorda region), held originally 100% after the 2005 acquisition and subsequently restructured
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Joint geological exploration agreement with KazMunayGas for the eastern Caspian basin (Aktobe region), signed October 2024
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Joint geological exploration with QazaqGaz at the Northern-1 block in Aktobe region, ongoing as of early 2026
Midstream (Pipeline):
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50% co-owner of Kazakhstan-China Pipeline LLP (KCP) — alongside KazTransOil JSC (50%); KCP owns and operates the Atasu–Alashankou and Kenkiyak–Kumkol oil pipelines, forming two of the three segments of the Kazakhstan–China Oil Pipeline (KCOP) corridor that transports Kazakhstani and Russian crude to China
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CNODC has been actively litigating (as of March 2026) in Kazakhstani courts against a Ministry of Energy order revising tariffs for Russian oil transit through Kazakhstan to China, demonstrating its active commercial role in pipeline tariff governance
Downstream (Refining):
Relationship to PetroChina
The relationship between CNODC and PetroChina has been a subject of ongoing corporate restructuring within the CNPC Group. Following PetroChina's $2.5 billion acquisition of overseas assets from CNPC in June 2005 — including interests in Kazakhstan, Venezuela, Algeria, Peru, and other countries — certain overseas assets moved into jointly held structures between PetroChina and CNODC, with CNODC retaining the primary operational management role. In the context of the PKOP Shymkent Refinery specifically, CNODC (not PetroChina) is recorded as the 50% equity holder and operational partner. CNPC's latest publicly available group structure (as of December 2023) shows CNODC sitting alongside the PetroChina Oil, Gas & New Energies Business Group as a parallel overseas vehicle within the CNPC Group.
Significance for Kazakhstan's Energy Sector
CNODC is Kazakhstan's single largest foreign energy investor by breadth of asset involvement, holding simultaneous positions across upstream, pipeline midstream, and refining downstream. Its role is underpinned by the Kazakhstan–China strategic energy partnership formalised in the 2004 intergovernmental framework agreement and deepened through successive bilateral agreements at the heads-of-state level. In the context of Kazakhstan's 2025–2040 refining expansion strategy, CNODC's co-investment role in the Shymkent refinery doubling makes it a central capital and technology partner alongside KMG.
