The top 10 pipeline companies in 2026 collectively move the majority of the world’s crude oil, natural gas, and natural gas liquids through networks spanning hundreds of thousands of kilometres. Combined, they underpin LNG export capacity, petrochemical feedstock supply, and the energy security calculations of every major consuming nation. Rankings are based on network scale, throughput volume, strategic significance, and financial strength entering 2026.
How We Ranked the Top 10 Pipeline Companies in 2026
This ranking weights operational network length and throughput volume as primary criteria, with secondary weighting on revenue scale, backlog of committed capital projects, and strategic positioning in growth markets — specifically LNG feed gas, NGL exports, and energy transition infrastructure. State-owned operators are assessed on the same criteria as publicly listed companies.
1. Enbridge — Canada
Enbridge heads this ranking on the strength of its Mainline system, which moves approximately 30% of all crude oil produced in North America. The Calgary-headquartered company reported record EBITDA exceeding CAD 20 billion in 2025 and operates one of the most geographically diversified pipeline and storage networks in the Western Hemisphere — spanning crude liquids, natural gas transmission, and gas distribution utilities. Its 2023 acquisition of three US gas utilities from Dominion Energy added 9 million customers and cemented its position as North America’s largest natural gas distribution company by volume. Enbridge’s capital programme for 2026 focuses on Mainline capacity optimisation and further integration of its US gas utility assets.
2. TC Energy — Canada
TC Energy operates the NGTL System in Western Canada and the Columbia Gas Transmission network in the US, together forming one of the largest natural gas pipeline systems in North America. The company completed its spin-off of South Bow Corporation — its liquids pipeline division — in October 2024, sharpening its focus on natural gas infrastructure. TC Energy is investing over C$6 billion annually in new projects, including Mexican pipeline sections serving industrial and power generation customers. Its existing pipeline network is being evaluated for hydrogen blending compatibility as part of a longer-term energy transition strategy.
3. Enterprise Products Partners — USA
Enterprise Products Partners is the dominant integrated midstream operator in the United States, with nearly 50,000 miles of pipeline and approximately 250 million barrels of storage capacity. Its network spans natural gas, NGLs, crude oil, and refined products — with particular strength in NGL fractionation and export at the Mont Belvieu hub in Texas. NGL export volumes reached record levels in 2025 driven by Asian petrochemical demand, and Enterprise has sanctioned additional export capacity at its Morgan’s Point terminal on the Houston Ship Channel. The partnership structure provides consistent distributions and has maintained investment-grade credit through multiple commodity cycles.
4. Kinder Morgan — USA
Kinder Morgan operates the largest natural gas transmission network in the United States, moving approximately 40% of US gas production through around 79,000 miles of pipeline and terminals. In 2026, the company is projecting feed gas demand of nearly 20 Bcf/d to support LNG export facilities on the Gulf Coast — a direct function of its strategic position connecting Permian and Appalachian production to liquefaction terminals. Kinder Morgan’s pipeline and terminal network also includes COâ‚‚ pipelines serving enhanced oil recovery operations in West Texas, and the company has flagged data centre power demand as a new growth driver for its gas transmission assets. See also our coverage of the Phillips 66 and Kinder Morgan Western Gateway Pipeline open season.
5. Energy Transfer — USA
Energy Transfer operates one of the most extensive pipeline footprints in the United States, with over 130,000 miles of infrastructure moving crude oil, NGLs, natural gas, and refined products. Its Permian Basin gathering and transportation assets are central to the US Gulf Coast export build-out, and the company has expanded its LNG export logistics capacity through investments in terminal access agreements. Energy Transfer’s scale gives it significant negotiating leverage with producers and end-users, though its complex partnership structure and leverage levels have historically attracted investor scrutiny.
6. ONEOK — USA
ONEOK has expanded rapidly through the integration of assets acquired from Magellan Midstream Partners — a transaction completed in 2023 that added refined products pipelines and terminals to its existing NGL network. The combined business now operates approximately 60,000 miles of pipeline with particular strength in the Mid-Continent, Williston Basin, and Gulf Coast. ONEOK’s NGL gathering, processing, and fractionation infrastructure serves as a critical link between Permian and Bakken producers and petrochemical end-users. For context on the Magellan acquisition, see our coverage of the top 10 midstream companies in 2026.
7. Williams Companies — USA
Williams Companies handles approximately one-third of all natural gas consumed daily in the United States through its Transco pipeline — the country’s largest interstate gas pipeline by volume, running 1,800 miles along the Eastern Seaboard from the Gulf Coast to New York. In 2026, Williams is executing a series of brownfield expansions along the Transco corridor specifically to serve rising power demand from data centres and AI infrastructure in the Mid-Atlantic and Southeast. Its deepwater Gulf of Mexico gathering operations provide a further growth platform as deepwater production volumes increase.
8. MPLX — USA
MPLX, the midstream partnership formed by Marathon Petroleum, operates gathering, processing, and transportation infrastructure concentrated in the Marcellus and Utica shale basins in Appalachia and the Permian Basin in West Texas. The partnership distributes consistent cash flows to unitholders and has maintained strong coverage ratios through commodity price volatility. In 2026, MPLX is expanding its Permian crude gathering capacity and has announced additional NGL fractionation investment at its Hopedale complex in Ohio to handle growing Marcellus gas volumes.
9. China National Petroleum Corporation — China
CNPC’s pipeline division manages the primary gas transmission corridors bringing Central Asian gas into China’s industrial regions, including the Central Asia-China Gas Pipeline system and its domestic trunk network. The Power of Siberia pipeline — operated in partnership with Gazprom — has been supplying Russian gas to Northeast China since 2019, with volumes ramping toward contractual targets through 2026. CNPC’s pipeline infrastructure is strategically significant to China’s energy security calculus and operates largely outside Western capital market frameworks, making direct financial comparison with listed peers approximate.
10. Transneft — Russia
Transneft remains the world’s largest oil pipeline operator by network length, with approximately 68,000 km of trunk pipelines and over 500 pumping stations moving more than 80% of Russia’s crude oil export volumes. The state-owned company has redirected flows from European export routes — which accounted for the majority of its throughput pre-2022 — toward eastern terminals serving Asian markets, particularly China and India. Operational statistics from Transneft are sourced from company filings; independent verification of current throughput figures is limited given the geopolitical context of Russian energy operations in 2026.
The Future of the Top 10 Pipeline Companies in 2026
The pipeline sector’s investment case in 2026 rests on three converging demand signals: LNG export feed gas requirements on the US Gulf Coast, rising power demand from AI and data centre infrastructure along established gas corridors, and continued NGL export growth driven by Asian petrochemical demand. The North American operators on this list are the primary beneficiaries of all three. For a broader view of US midstream infrastructure investment, see our analysis of underground gas storage as energy security infrastructure and our recent coverage of Cardinal Midstream’s Delaware Basin expansion.
Which is the largest pipeline company in the world in 2026?
By crude oil network length, Transneft is the largest pipeline operator globally with approximately 68,000 km of trunk pipelines. By revenue and strategic diversification, Enbridge leads the Western Hemisphere, moving 30% of all North American crude oil production.
How much US natural gas does Kinder Morgan transport?
Kinder Morgan transports approximately 40% of US natural gas production through around 79,000 miles of pipeline. In 2026, the company is projecting feed gas demand of nearly 20 Bcf/d to LNG export terminals on the Gulf Coast.
Which pipeline companies are benefiting most from LNG export growth in 2026?
Kinder Morgan and Williams Companies are the primary beneficiaries, given their Gulf Coast and Eastern Seaboard network positions connecting gas production basins to LNG liquefaction terminals. Energy Transfer is also expanding its Gulf Coast export logistics capacity.
What is the Transco pipeline and who operates it?
Transco is the United States’ largest interstate natural gas pipeline by volume, running approximately 1,800 miles from the Gulf Coast to New York. It is operated by Williams Companies and handles roughly one-third of daily US gas consumption.
Are pipeline companies investing in energy transition infrastructure?
Several operators on this list are directing capital toward hydrogen blending compatibility studies, carbon capture infrastructure, and renewable natural gas integration. TC Energy and Enbridge have the most active energy transition programmes among the North American operators ranked here.