- PipeChina tops the ranking of pipeline companies Asia hosts in 2026, controlling the country’s entire national oil and gas transmission network
- GAIL India operates more than 16,000km of cross-country gas pipelines, the backbone of India’s National Gas Grid expansion
- PetroVietnam’s Block B–O Mon pipeline has already cost $1.28bn and targets first gas in 2026, though the project has a history of delays
- Petronas and Shell’s Rosmari–Marjoram pipeline runs through deep water at depths of up to 800m off Sarawak, with Shell holding an 80% stake
- KOGAS remains South Korea’s sole wholesale gas supplier, managing the country’s high-pressure national pipeline loop
- Offshore gas transmission is expanding fastest across Southeast Asia as national operators bridge the shift to renewables
China’s PipeChina sits at the top of any list of pipeline companies Asia can offer in 2026, and the gap to second place is not close. Formed in 2019 to consolidate pipeline assets previously split across CNPC, Sinopec and CNOOC, PipeChina now controls the national trunk network carrying the majority of China’s domestic oil, gas and LNG throughput. Its priority this year is extending the West-to-East Gas Pipeline system to move Central Asian imports further into eastern industrial hubs.
How We Ranked the Top 10 Pipeline Companies Asia 2026
Ranking is based on network length, transmission volume, and the degree of regional infrastructure control each operator holds, whether through state ownership or exclusive transmission mandates. State-backed national operators dominate this list, a structural feature of Asian midstream markets that differs sharply from the more fragmented ownership seen in Europe’s pipeline sector.
1. China Oil & Gas Pipeline Network Corporation (PipeChina) – China
PipeChina is the largest midstream entity in Asia by a wide margin, holding China’s national network of oil and gas pipelines alongside gas storage and LNG import terminals. It was carved out of the three national oil majors specifically to separate pipeline ownership from upstream and downstream operations. The West-to-East Gas Pipeline expansion remains its flagship 2026 project, connecting Central Asian supply with demand centres in eastern China.
2. GAIL (India) Limited – India
GAIL is India’s principal gas transmission company, running a cross-country network exceeding 16,000km. Its current focus is completing the Jagdishpur-Haldia-Bokaro-Dhamra pipeline, a core piece of the National Gas Grid expansion designed to bring piped gas to previously underserved eastern states. GAIL’s transmission volumes make it the clearest Indian counterpart to PipeChina’s role in China.
3. PetroChina Company Limited – China
PetroChina’s upstream and downstream assets dwarf its pipeline business, but the company retains significant strategic stakes and construction capacity in major transnational lines feeding Chinese demand. Its role centres on collaborative pipeline operations running through Central Asia, working alongside PipeChina rather than in direct competition with it.
4. PTT Public Company Limited – Thailand
PTT operates Thailand’s extensive subsea and onshore natural gas transmission network, moving upstream gas from offshore blocks including Bongkot to the central power grid. As Thailand’s state-owned energy group, PTT holds an effective transmission monopoly domestically, giving it outsized influence over the country’s gas-to-power pricing.
5. Petronas – Malaysia
Petronas owns and operates the Peninsular Gas Utilisation network, stretching more than 2,500km and linking offshore gas discoveries to regional LNG export hubs. The company’s Rosmari–Marjoram pipeline, developed through subsidiary Sarawak Shell Berhad with Petronas Carigali holding a 20% stake, will run in deep water off Bintulu at depths of up to 800m, carrying sour gas to an onshore processing plant.
6. PT Pertamina – Indonesia
Pertamina operates Indonesia’s major domestic pipeline distribution across Java, Sumatra and offshore territories as the country’s integrated state energy provider. Current priority is upgrading natural gas links to support the industrial supply transition, part of a broader push to reduce Indonesia’s reliance on imported LPG.
7. Korea Gas Corporation (KOGAS) – South Korea
KOGAS is South Korea’s sole wholesale natural gas supplier, managing a high-pressure national pipeline loop built for grid reliability rather than raw network length. The company’s 2026 focus is smart pipeline technology and expanding LNG receiving pipeline capacity, positioning it as one of the more digitally advanced pipeline companies Asia has to offer.
8. Sinopec (China Petroleum & Chemical Corp) – China
Sinopec operates thousands of kilometres of crude oil, refined product and natural gas pipelines alongside its refining business. Its transmission priority for 2026 is enhancing regional distribution lines for chemical feedstocks and cleaner-burning gas, supporting China’s downstream petrochemical expansion.
9. China Offshore Oil Engineering Co. (COOEC) – China
COOEC is a leading offshore engineering contractor and pipeline installer across the Asia-Pacific region rather than a pipeline operator in its own right. The company is currently executing heavy subsea pipelay campaigns in the South China Sea and Bohai Bay, work that underpins much of the region’s offshore pipeline buildout.
10. PetroVietnam (PV Gas) – Vietnam
PV Gas is Vietnam’s state-owned pipeline and gas utility leader, capturing, transporting and distributing gas nationwide. Its Block B–O Mon pipeline, part of a wider gas-to-power value chain feeding four downstream power plants, has cost an estimated $1.28bn to date according to GlobalData figures reported by Offshore Technology. First gas is targeted for 2026, though the project has already faced repeated delays from regulatory approvals and turbine supply issues.
The Future of Pipeline Companies Asia 2026: What to Watch
Southeast Asian operators are leaning on gas pipeline expansion as a bridging fuel while renewable capacity scales up, a pattern already visible in the Middle East’s pipeline sector but playing out on a faster timeline across Vietnam, Malaysia and Indonesia. Offshore pipelay activity is also picking up, with GAIL and PipeChina both integrating AI-driven predictive maintenance into national networks to cut leakage risk. Expect PV Gas and Petronas to move up this ranking if their current offshore projects reach commissioning on schedule.
Compared with the more consolidated ownership seen among North America’s pipeline companies, Asia’s market remains defined by state control, and that structure is unlikely to shift in 2026. The companies best placed to gain ground are the ones already running multi-country transmission mandates rather than single-country networks.
Which company leads the ranking of pipeline companies Asia in 2026?
PipeChina leads, controlling China’s entire national network of oil and gas pipelines, gas storage, and LNG terminals, the largest midstream footprint of any operator in the region.
What criteria determine the ranking?
Companies are ranked by pipeline network length, transmission volume, and the degree of regional infrastructure control they hold, typically through state ownership or exclusive transmission mandates.
Which Asian country has the longest single operator gas network?
India’s GAIL runs more than 16,000km of cross-country pipelines, making it one of the largest single-operator gas transmission networks anywhere in Asia.
What is PetroVietnam’s Block B–O Mon pipeline?
It is a 433km gas pipeline linking offshore Block B gas fields to four downstream power plants in Vietnam, with an estimated $1.28bn spent to date and first gas targeted for 2026.
What could change these rankings in future years?
Offshore pipeline commissioning is the main variable. If Petronas’s Rosmari-Marjoram and PV Gas’s Block B-O Mon projects reach full capacity on schedule, both operators would gain ground on volume-based measures.