Directory
Gas transmission pipelines
Every gas transmission pipeline above Global Energy Monitor's size threshold, grouped by project: 4246 pipelines made up of 4246 tracked segments across 139 countries. 3921 have a route drawn on the map.
Pipelines
4,246
4246 tracked segments
Operating length
1,173,317 km
2975 pipelines operating
Under construction
77,835 km
282 pipelines building
Terminal connections
5,307
pipeline within 25 km of a terminal
Prefer a map? Open the world map to see these routes with the terminals they feed. Looking for one pipeline by name? Use the box below; the site search covers everything else.
Search by name, country or route, for example Nord Stream or Algeria Italy.
Showing 2401–2700 of 4246 pipelines, sorted by name. The filters below apply to this page.
| Countries | Segments | |||||
|---|---|---|---|---|---|---|
| Nord Stream 2 Gas PipelineLeningrad Oblast → Mecklenburg-Vorpommern | Russia, Finland, Sweden, Denmark, Germany | Mothballed | 1,230 km | 55 bcm/y | 1 | 2022 |
| Nord Stream Gas PipelineLeningrad Oblast → Mecklenburg-Vorpommern | Russia, Germany | Mothballed | 1,222 km | 55 bcm/y | 1 | 2011 |
| Nordestão Gas Pipeline | Brazil | Operating | 427 km | 0.83 bcm/y | 1 | 1986 |
| Nordschwarzwaldleitung (NOS) Gas Pipeline | Germany | Operating | 70 km | Not reported | 1 | 2016 |
| Nord–West Anbindungsleitung Gas Pipeline (NOWAL) | Germany | Operating | 26 km | Not reported | 1 | 2020 |
| Norne Gas Transport System PipelineNorth Sea → North Sea | Norway | Operating | 128 km | 2.56 bcm/y | 1 | 2001 |
| Norpipe Gas PipelineNorth Sea → North East United Kingdom | Norway, Germany | Operating | 431 km | 16 bcm/y | 1 | 1977 |
| Norte Crossing Pipeline | United States, Mexico | Operating | 0.5 km | 3.74 bcm/y | 1 | 2013 |
| North Baja Gas PipelineArizona → California | United States | Operating | 129 km | 6.13 bcm/y | 1 | 2002 |
| North Baja Gas PipelineArizona → California | United States | Operating | 0 km | 4.6 bcm/y | 1 | 2023 |
| North Bakken Expansion PipelineNorth Dakota → North Dakota | United States | Operating | 101 km | 2.56 bcm/y | 1 | 2022 |
| North Bakken Expansion PipelineNorth Dakota → North Dakota | United States | Operating | 33 km | 2.56 bcm/y | 1 | 2022 |
| North Bakken Expansion PipelineNorth Dakota → North Dakota | United States | Operating | 15 km | 2.56 bcm/y | 1 | 2022 |
| North Bakken Expansion PipelineNorth Dakota → North Dakota | United States | Operating | 0.8 km | 2.56 bcm/y | 1 | 2022 |
| North Bakken Expansion PipelineNorth Dakota → North Dakota | United States | Operating | 0.5 km | 2.56 bcm/y | 1 | 2022 |
| North Brooklyn Gas PipelineNew York → New York | United States | Cancelled | 11 km | Not reported | 1 | — |
| North Brooklyn PipelineNew York → New York | United States | Cancelled | 11 km | 2.56 bcm/y | 1 | 2022 |
| North Caucasus-Transcaucasia Gas Pipeline | Russia, Georgia | Operating | 221 km | 12 bcm/y | 1 | 1988 |
| North Caucasus-Transcaucasia Gas Pipeline | Russia, Georgia, Armenia | Operating | 271 km | Not reported | 1 | 1965 |
| North East Natural Gas Pipeline Grid Project | India | Under construction | 1,656 km | 1.73 bcm/y | 1 | 2026 |
| North Field B-PU–Ras Laffan Gas Pipeline | Qatar | Operating | 126 km | Not reported | 1 | — |
| North Gas-Baiji Gas PipelineKirkuk → Saladin | Iraq | Operating | 145 km | 0.89 bcm/y | 1 | — |
| North Gas-K1 Gas Pipeline | Iraq | Operating | 34 km | 5.26 bcm/y | 1 | — |
| North Gas-Taji Gas Pipeline | Iraq | Operating | 438 km | 1.53 bcm/y | 1 | — |
| North Macedonia–Albania Gas Pipeline | North Macedonia, Albania | Proposed | 135 km | 2.02 bcm/y | 1 | — |
| North Macedonia–Bulgaria Gas Pipeline | North Macedonia, Bulgaria | Proposed | 110 km | 2.02 bcm/y | 1 | — |
| North Macedonia–Greece Interconnector Gas Pipeline | Greece, North Macedonia | Proposed | 54 km | 1.5 bcm/y | 1 | 2027 |
| North Macedonia–Greece Interconnector Gas Pipeline | North Macedonia, Greece | Under construction | 68 km | 1.5 bcm/y | 1 | 2027 |
| North Mist Expansion PipelineOregon → Oregon | United States | Operating | 21 km | 1.23 bcm/y | 1 | 2019 |
| North Montney Mainline PipelineBritish Columbia → British Columbia | Canada | Operating | 206 km | 17.4 bcm/y | 1 | 2020 |
| North Pailin-Pailin Gas Pipeline | Thailand | Operating | 10 km | 3.07 bcm/y | 1 | 2001 |
| North Queensland Gas PipelineQueensland → Queensland | Australia | Operating | 391 km | 1.08 bcm/y | 1 | 2004 |
| North Rumela-Al-Najaf Gas PipelineBasrah → Al-Najaf | Iraq | Shelved | 350 km | 94.2 bcm/y | 1 | — |
| North Rumela-Khor Al-Zubair Gas PipelineBasrah → Basrah | Iraq | Operating | 87 km | 10 bcm/y | 1 | — |
| North Sea Fields–Uithuizen Pipeline | Netherlands | Operating | 57 km | Not reported | 1 | 1992 |
| North Wapiti Pipeline SystemAlberta → Alberta | Canada | Operating | 34 km | 1.53 bcm/y | 1 | 2019 |
| North West Pipeline (NWP) | United Kingdom | Operating | 112 km | Not reported | 1 | 2004 |
| North West Shelf Gas Pipeline 1TLWestern Australia → Western Australia | Australia | Operating | 134 km | Not reported | 1 | 1983 |
| North West Shelf Gas Pipeline 2TLWestern Australia → Western Australia | Australia | Operating | 134 km | Not reported | 1 | 2003 |
| North-Eastern Pipeline | Ireland | Operating | Not reported | Not reported | 1 | 1988 |
| North-South Gas Pipeline | Kyrgyzstan | Proposed | 600 km | 0.24 bcm/y | 1 | — |
| North-South Gas Transmission Pipeline | Bangladesh | Operating | 175 km | 4.09 bcm/y | 1 | 1993 |
| Northeast Argentina Gas PipelineSanta Fe → Chaco | Argentina | Operating | 694 km | 4.09 bcm/y | 1 | 2019 |
| Northeast Argentina Gas PipelineFormosa → Formosa | Argentina | Operating | 280 km | 4.09 bcm/y | 1 | 2024 |
| Northeast Argentina Gas PipelineFormosa → Salta | Argentina | Shelved | 533 km | 4.09 bcm/y | 1 | — |
| Northern Border Gas PipelineMontana → Indiana | Canada, United States | Operating | 2,272 km | 24.5 bcm/y | 1 | 1982 |
| Northern Gas PipelineNorthern Territory → Queensland | Australia | Operating | 622 km | 8.91 bcm/y | 1 | 2019 |
| Northern Gas PipelineQueensland → Queensland | Australia | Cancelled | 580 km | 5.02 bcm/y | 1 | 2028 |
| Northern Gas PipelineNorthern Territory → Queensland | Australia | Cancelled | 622 km | 16.1 bcm/y | 1 | 2028 |
| Northern Gas PipelineNorthern Territory → Queensland | Australia | Cancelled | 0 km | 3.51 bcm/y | 1 | 2025 |
| Northern Goldfields Interconnect Gas PipelineWestern Australia → Western Australia | Australia | Operating | 580 km | 0.8 bcm/y | 1 | 2023 |
| Northern Kyushu Gas Pipeline | Japan | Operating | 60 km | Not reported | 1 | 2020 |
| Northern Leg Gas PipelineNorth Sea → North Sea | United Kingdom, Norway | Operating | 80 km | 3.07 bcm/y | 1 | 1982 |
| Northern Natural Gas PipelineMinnesota → Minnesota | United States | Operating | 30 km | 1.04 bcm/y | 1 | 2019 |
| Northern Natural Gas PipelineTexas → Illinois, Wisconsin, Minnesota, Michigan | United States | Operating | 23,014 km | 64.4 bcm/y | 1 | 1930 |
| Northern Natural Gas PipelineMinnesota → Minnesota | United States | Operating | 20 km | 0.38 bcm/y | 1 | 2019 |
| Northern Natural Gas PipelineMinnesota → Minnesota | United States | Operating | 5 km | 0.78 bcm/y | 1 | 2017 |
| Northern Natural Gas PipelineMinnesota → Minnesota | United States | Operating | 35 km | 0.47 bcm/y | 1 | 2022 |
| Northern Natural Gas PipelineMinnesota → Wisconsin | United States | Operating | 14 km | 0.52 bcm/y | 1 | 2024 |
| Northern Natural Gas PipelineIowa → Iowa | United States | Operating | 2.4 km | 0 bcm/y | 1 | 2023 |
| Northern Natural Gas PipelineIowa → Iowa | United States | Operating | 15 km | 0 bcm/y | 1 | 2022 |
| Northern Natural Gas PipelineIowa → Iowa | United States | Operating | 15 km | 0 bcm/y | 1 | 2023 |
| Northern Natural Gas PipelineSouth Dakota → Nebraska | United States | Operating | 135 km | 0 bcm/y | 1 | 2024 |
| Northern Natural Gas PipelineTexas → Texas | United States | Proposed | 0 km | 0.89 bcm/y | 1 | 2026 |
| Northern Natural Gas PipelineMinnesota → Wisconsin | United States | Under construction | 14 km | 0.47 bcm/y | 1 | 2025 |
| Northern Saitama Gas Pipeline | Japan | Operating | 38 km | Not reported | 1 | 1974 |
| Northern Tyumen Regions (SRTO)–Torzhok Gas PipelineYamalo-Nenets Autonomous Okrug → Tver Oblast | Russia | Operating | 2,200 km | 28.5 bcm/y | 1 | 2006 |
| Northstar Gas PipelineAlaska → Alaska | United States | Operating | 26 km | Not reported | 1 | 2001 |
| Northwest Gas PipelineWashington → Colorado | United States | Operating | 6,276 km | 38.8 bcm/y | 1 | 1965 |
| Northwest Gas PipelineOregon → Oregon | United States | Cancelled | 171 km | 4.6 bcm/y | 1 | 2023 |
| Northwest Gas PipelineWashington → Washington | United States | Cancelled | 4.8 km | 3.27 bcm/y | 1 | 2022 |
| Northwest Gas PipelineOregon → Washington | United States | Proposed | 0 km | 1.87 bcm/y | 1 | 2028 |
| Northwest Gas PipelineUtah → Utah | United States | Proposed | 0 km | 0.85 bcm/y | 1 | 2027 |
| Northwestern Gas PipelineCórdoba → Antioquia | Colombia | Cancelled | 289 km | 1.02 bcm/y | 1 | 2023 |
| Northwestern Gas PipelineAntioquia → Tolima | Colombia | Cancelled | 139 km | Not reported | 1 | 2028 |
| Northwestern Gas PipelineTolima → Cundinamarca | Colombia | Cancelled | 105 km | Not reported | 1 | 2028 |
| North–Northeast Gas PipelineTehran → Tehran | Iran | Operating | 35 km | 2.08 bcm/y | 1 | 2008 |
| North–Vest Romania Pipeline | Romania | Proposed | 518 km | Not reported | 1 | 2023 |
| Nova Gas Transmission (NGTL) PipelineBritish Columbia → British Columbia | Canada | Cancelled | 100 km | 10.2 bcm/y | 1 | — |
| Nova Gas Transmission (NGTL) PipelineSaskatchewan → British Columbia | Canada | Operating | 24,500 km | 81.8 bcm/y | 1 | 1957 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 29 km | 3.63 bcm/y | 1 | 2022 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 344 km | 14.8 bcm/y | 1 | 2023 |
| Nova Gas Transmission (NGTL) PipelineAlberta → British Columbia | Canada | Cancelled | 89 km | 27.6 bcm/y | 1 | 2021 |
| Nova Gas Transmission (NGTL) PipelineAlberta → British Columbia | Canada | Cancelled | 275 km | 30.7 bcm/y | 1 | — |
| Nova Gas Transmission (NGTL) PipelineAlberta → British Columbia | Canada | Operating | 230 km | Not reported | 1 | 2018 |
| Nova Gas Transmission (NGTL) PipelineAlberta → British Columbia | Canada | Operating | 85 km | Not reported | 1 | 2022 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 36 km | Not reported | 1 | 2022 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 39 km | 1.76 bcm/y | 1 | 2023 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 13 km | Not reported | 1 | 2022 |
| Nova Gas Transmission (NGTL) PipelineBritish Columbia → British Columbia | Canada | Operating | 31 km | 1.63 bcm/y | 1 | 2023 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Cancelled | 65 km | Not reported | 1 | — |
| Nova Gas Transmission (NGTL) PipelineBritish Columbia → British Columbia | Canada | Operating | 23 km | 3.36 bcm/y | 1 | 2023 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 23 km | Not reported | 1 | 2020 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 20 km | Not reported | 1 | 2022 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 21 km | Not reported | 1 | 2018 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 22 km | Not reported | 1 | 2020 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 87 km | Not reported | 1 | 2017 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 24 km | Not reported | 1 | 2023 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 32 km | Not reported | 1 | 2023 |
| Nova Gas Transmission (NGTL) PipelineAlberta → Alberta | Canada | Operating | 36 km | Not reported | 1 | 2023 |
| Nova Gas Transmission (NGTL) Pipeline | Canada | Proposed | 22 km | Not reported | 1 | 2027 |
| Novo Mesto-Bela Krajina Gas Pipeline | Slovenia | Proposed | 39 km | 0.11 bcm/y | 1 | — |
| Novokuznetsk-Prokopyevsk Gas PipelineKemerovo region → Kemerovo Oblast | Russia | Proposed | 24 km | 0.78 bcm/y | 1 | — |
| Novoportovskoye Oil and Gas Condensate Field-Yamburg Gas PipelineYamalo-Nenets Autonomous Okrug → Yamalo-Nenets Autonomus Okrug | Russia | Operating | 116 km | 20 bcm/y | 1 | 2021 |
| Novopskov-Aksai-Mozdok Pipeline | Russia, Ukraine | Operating | 878 km | Not reported | 1 | 1984 |
| Novopskov-Shebelinka Gas Pipeline | Ukraine | Operating | 212 km | 14.5 bcm/y | 1 | 1981 |
| Novorzhev-Pushkinskiye Gory Gas PipelinePskov Oblast → Pskov Oblast | Russia | Proposed | 25 km | 0.05 bcm/y | 1 | — |
| Novosibirsk-Barnaul Gas PipelineNovosibirsk Oblast → Altai Krai | Russia | Operating | 292 km | 1.7 bcm/y | 1 | 1996 |
| Novosibirsk-Barnaul Gas PipelineAltai territory → Altai Krai | Russia | Operating | 50 km | Not reported | 1 | 2017 |
| Novosibirsk-Barnaul Gas PipelineAltai territory → Altai Krai | Russia | Operating | 77 km | 0.44 bcm/y | 1 | 2022 |
| Novosibirsk-Barnaul Gas PipelineAltai territory → Altai Krai | Russia | Proposed | 246 km | 0.96 bcm/y | 1 | 2023 |
| Novosibirsk-Barnaul Gas PipelineAltai territory → Altai Krai | Russia | Proposed | 277 km | 0.86 bcm/y | 1 | 2023 |
| Novosokolniki-Pustoshka Gas PipelinePskov Oblast → Pskov Oblast | Russia | Proposed | 49 km | Not reported | 1 | — |
| Novospassk-Ulyanovsk Gas PipelineUlyanovsk Oblast → Ulyanovsk Oblast | Russia | Operating | 148 km | Not reported | 1 | 1985 |
| Nowshera-Mardan-Takht Bhai-Sakhakot Gas PipelineKhyber Pakhtunkhwa → Khyber Pakhtunkhwa | Pakistan | Operating | 58 km | Not reported | 1 | — |
| Nubaria–Sadat Gas PipelineAlexandria → Monufia | Egypt | Operating | 73 km | 4.38 bcm/y | 1 | 2014 |
| Nueva Era PipelineTexas → Nuevo León | United States, Mexico | Operating | 322 km | 6.13 bcm/y | 1 | 2018 |
| Nuiqsut Natural Gas PipelineAlaska → Alaska | United States | Operating | 23 km | 0.04 bcm/y | 1 | 2008 |
| OPAL Gas PipelineMecklenburg-Vorpommern → Sachsen | Germany | Operating | 470 km | 35 bcm/y | 1 | 2011 |
| Oasis Gas PipelineTexas → Texas | United States | Operating | 966 km | 12.3 bcm/y | 1 | — |
| Oasis Gas PipelineTexas → Texas | United States | Under construction | 0 km | 0.61 bcm/y | 1 | 2022 |
| Obaiyed-Amreya Northern Gas PipelineMatruh → Alexandria | Egypt | Operating | 50 km | 6.13 bcm/y | 1 | — |
| Obaiyed-Amreya Northern Gas PipelineWestern Desert → Alexandria | Egypt | Operating | 231 km | 9.71 bcm/y | 1 | — |
| Obaiyed-Amreya Northern Gas PipelineMatruh → Alexandria | Egypt | Operating | 42 km | 4.91 bcm/y | 1 | — |
| Oben-Ajaokuta Steel Gas Pipeline | Nigeria | Operating | 16 km | 1.87 bcm/y | 1 | — |
| Oben-Geregu Gas PipelineEdo → Kogi | Nigeria | Operating | 196 km | 12.3 bcm/y | 1 | 2011 |
| Obermichelbach-Wolfsburg Gas Pipeline | Germany | Operating | 233 km | Not reported | 1 | — |
| Obiafu-Obrikom-Oben Gas PipelineRivers → Edo | Nigeria | Under construction | 127 km | 20.4 bcm/y | 1 | 2022 |
| Obiafu-Rumuji Gas Pipeline | Nigeria | Operating | 62 km | 5.17 bcm/y | 1 | — |
| Obiafu-Ubeta Gas Pipeline | Nigeria | Operating | 29 km | 4.55 bcm/y | 1 | — |
| Odessa-Chisinau Gas Pipeline | Moldova, Ukraine | Operating | 44 km | 1.3 bcm/y | 1 | — |
| Odolanow-Latynia Gas Pipeline | Poland | Operating | 113 km | Not reported | 1 | — |
| Odolanow–Husow Gas Pipeline | Poland | Operating | 411 km | Not reported | 1 | — |
| Off-Shore Gas Pipeline | Pakistan, Iran | Proposed | 1,500 km | 10.2 bcm/y | 1 | — |
| Ohio Valley Connector Expansion Project (OVCX)Ohio → Ohio | United States | Operating | 9.7 km | 3.58 bcm/y | 1 | 2024 |
| Ojinaga-El Encino Gas PipelineChihuahua → Chihuahua | Mexico | Operating | 220 km | 13.9 bcm/y | 1 | 2017 |
| Okarem-Beyneu Gas PipelineBalkan → Mangystau | Kazakhstan, Turkmenistan | Operating | 999 km | 3.78 bcm/y | 1 | 1974 |
| Okarem-Beyneu Gas PipelineMangystau → Mangystau | Kazakhstan | Operating | 308 km | 5.8 bcm/y | 1 | 2023 |
| Okaz Gas PipelineAnbar → Anbar | Iraq | Operating | 30 km | 0.77 bcm/y | 1 | 2023 |
| Okaz–Al-Anbar Gas PipelineAl Anbar → Al Anbar | Iraq | Proposed | Not reported | Not reported | 1 | — |
| Okaz–Al-Anbar Gas PipelinesAl-Anbar → Al-Anbar | Iraq | Proposed | Not reported | Not reported | 1 | — |
| Okaz–Al-Anbar Gas PipelinesAl-Anbar → Al-Anbar | Iraq | Proposed | Not reported | Not reported | 1 | — |
| Okha-Komsomolsk Gas PipelineSakhalin region → Khabarovsk Territory | Russia | Operating | 659 km | Not reported | 1 | 1987 |
| Olavarría-Barker Gas PipelineBuenos Aires → Buenos Aires | Argentina | Operating | 105 km | Not reported | 1 | 1972 |
| Old Ocean PipelineTexas → Texas | United States | Operating | 386 km | 1.64 bcm/y | 1 | 2019 |
| Olishcani-Saharna Gas Pipeline | Moldova | Operating | 27 km | Not reported | 1 | — |
| Olonets-Pitkyaranta Gas PipelineRepublic of Karelia → Republic of Karelia | Russia | Under construction | 123 km | 0.55 bcm/y | 1 | 2023 |
| Omišalj-Zlobin-Bosiljevo-Sisak-Kozarac-Slobodnica LNG main evacuation pipeline | Croatia | Operating | 18 km | 2.63 bcm/y | 1 | 2021 |
| Omišalj-Zlobin-Bosiljevo-Sisak-Kozarac-Slobodnica LNG main evacuation pipeline | Croatia | Operating | 58 km | 1.84 bcm/y | 1 | 2025 |
| Omišalj-Zlobin-Bosiljevo-Sisak-Kozarac-Slobodnica LNG main evacuation pipeline | Croatia | Proposed | 128 km | Not reported | 1 | 2030 |
| Omišalj-Zlobin-Bosiljevo-Sisak-Kozarac-Slobodnica LNG main evacuation pipeline | Croatia | Proposed | 102 km | 1.84 bcm/y | 1 | 2026 |
| Omišalj-Zlobin-Bosiljevo-Sisak-Kozarac-Slobodnica LNG main evacuation pipeline | Croatia | Proposed | 20 km | 1.84 bcm/y | 1 | 2026 |
| Ommen-Groningen Gas Pipeline | Netherlands | Operating | 79 km | Not reported | 1 | — |
| Ommen-Legden Gas Pipeline | Netherlands, Germany | Operating | 52 km | Not reported | 1 | — |
| Ommen–Scheemda Gas Pipeline | Netherlands | Operating | 85 km | Not reported | 1 | — |
| Omsk-Novosibirsk-Kuzbass Gas PipelineOmsk Oblast → Novosibirsk Oblast | Russia | Operating | 658 km | 14 bcm/y | 1 | — |
| Omsk-Novosibirsk-Kuzbass Gas PipelineNovosibirsk Oblast → Kemerovo Oblast | Russia | Operating | 99 km | 14 bcm/y | 1 | — |
| Omuta-Kumamoto Gas Pipeline | Japan | Operating | Not reported | Not reported | 1 | 1976 |
| Ordos-Anping-Cangzhou Gas PipelineInner Mongolia → Shaanxi | China | Cancelled | 362 km | 14.8 bcm/y | 1 | — |
| Ordos-Anping-Cangzhou Gas PipelineInner Mongolia → Shaanxi | China | Cancelled | 247 km | 13.6 bcm/y | 1 | — |
| Ordos-Anping-Cangzhou Gas PipelineInner Mongolia → Shaanxi | China | Cancelled | 252 km | 13.6 bcm/y | 1 | — |
| Ordos-Anping-Cangzhou Gas PipelineHebei → Hebei | China | Operating | 70 km | 9.8 bcm/y | 1 | 2019 |
| Ordos-Anping-Cangzhou Gas PipelineHebei → Henan | China | Operating | 373 km | 9.8 bcm/y | 1 | 2018 |
| Ordos-Anping-Cangzhou Gas PipelineHebei → Hebei | China | Operating | 235 km | 30 bcm/y | 1 | 2018 |
| Orenburg-Novopskov Gas PipelineOrenburg → Luhansk | Ukraine, Kazakhstan, Russia | Operating | 1,230 km | 14.6 bcm/y | 1 | 1975 |
| Orenburg-Samara Gas PipelineOrenburg Oblast → Samara Oblast | Russia | Operating | 251 km | Not reported | 1 | 1973 |
| Orenburg-Zainsk Gas PipelineOrenburg Oblast → Republic of Tatarstan | Russia | Operating | 508 km | 4.8 bcm/y | 1 | 1974 |
| Oricola–Ciciliano Gas Pipeline | Italy | Operating | 18 km | Not reported | 1 | 1984 |
| Oricola–Ciciliano Gas Pipeline | Italy | Operating | 18 km | Not reported | 1 | 1993 |
| Ormen Lange–Nyhamna I Gas PipelineNorth Sea → North Sea | Norway | Operating | 120 km | Not reported | 1 | 2007 |
| Ormen Lange–Nyhamna II Gas PipelineNorth Sea → North Sea | Norway | Operating | 120 km | Not reported | 1 | 2007 |
| Oseberg Gas Transport PipelineNorth Sea → North Sea | Norway | Operating | 110 km | 12.8 bcm/y | 1 | 2000 |
| Ostrogozhsk-Belousovo Gas PipelineVoronezh Oblast → Kaluga Oblast | Russia | Operating | 810 km | 8.79 bcm/y | 1 | — |
| Ostrogozhsk-Shebelinka Gas PipelineVoronezh → Kharkiv | Ukraine, Russia | Mothballed | 312 km | 22.5 bcm/y | 1 | 1981 |
| Ostsee Anbindungsleitung (OAL) Gas PipelineMecklenburg-Vorpommern → Mecklenburg-Vorpommern | Germany | Operating | 50 km | Not reported | 1 | 2024 |
| Oswiecim–Pogorska Wola Gas Pipeline | Poland | Operating | 147 km | Not reported | 1 | — |
| Otway Gas PipelineVictoria → Victoria | Australia | Operating | 80 km | Not reported | 1 | 2006 |
| Oued Seguen-Ferdjioua Gas PipelineMila → Mila | Algeria | Operating | 34 km | Not reported | 1 | 1980 |
| Oum Laadham Gas PipelineDjelfa → Djelfa | Algeria | Operating | 41 km | Not reported | 1 | 2019 |
| Oumi Gas Pipeline | Japan | Operating | 60 km | Not reported | 1 | 1960 |
| Oviedo–Tuy Gas Pipeline | Spain | Operating | 373 km | Not reported | 1 | 1998 |
| Ozark Gas Transmission PipelineOklahoma → Missouri | United States | Operating | 589 km | 1.74 bcm/y | 1 | 1982 |
| Ozdany-Velke Kapusany Gas Pipeline | Slovakia | Operating | 182 km | Not reported | 1 | — |
| Ozdany–Nemesbikk Gas Pipeline | Slovakia, Hungary | Operating | 104 km | Not reported | 1 | — |
| Oświęcim-Tworzen Gas Pipeline | Poland | Operating | 44 km | Not reported | 1 | 2025 |
| PLL-DGEN-Sugen Gas PipelineGujarat → Gujarat | India | Under construction | 90 km | 2.37 bcm/y | 1 | — |
| PM3 CAA – Ca Mau Gas Pipeline System | Vietnam | Operating | 330 km | 2 bcm/y | 1 | 2007 |
| PNG LNG PipelineHela → National Capital District | Papua New Guinea | Operating | 700 km | 10.2 bcm/y | 1 | 2014 |
| PS Offshore Gas Pipelines | Qatar | Operating | 32 km | Not reported | 1 | — |
| PS Offshore Gas Pipelines | Qatar | Operating | 60 km | Not reported | 1 | — |
| PS-4–Ras Laffan Gas PipelinesPersian Gulf → Al Khor | Qatar | Operating | 124 km | Not reported | 1 | — |
| PS-4–Ras Laffan Gas PipelinesPersian Gulf → Al Khor | Qatar | Operating | 124 km | Not reported | 1 | — |
| Pacific Connector Gas PipelineOregon → Oregon | United States | Cancelled | 369 km | 20.7 bcm/y | 1 | 2022 |
| Pacific Gas & Electric PipelineCalifornia → California | United States | Operating | 11,265 km | Not reported | 1 | — |
| Pacific Trail Gas PipelinesBritish Columbia → British Columbia | Canada | Shelved | 471 km | 13.9 bcm/y | 1 | — |
| Pailin Field-Erawan Field Gas Pipeline | Thailand | Operating | 53 km | 2.04 bcm/y | 1 | 1999 |
| Pakistan Stream Gas Pipeline | Pakistan | Proposed | 1,100 km | 12.4 bcm/y | 1 | 2024 |
| Palagiano-Brindisi Gas Pipeline | Italy | Operating | 77 km | Not reported | 1 | 1984 |
| Palagiano-Brindisi Gas Pipeline | Italy | Operating | 77 km | Not reported | 1 | 1985 |
| Palagiano–Bernalda Gas Pipeline | Italy | Operating | 33 km | Not reported | 1 | 1975 |
| Paldiski FSRU Pipeline | Estonia | Under construction | 1.2 km | Not reported | 1 | 2022 |
| Palekh-Lukh Gas PipelineIvanovo region → Ivanovo Oblast | Russia | Proposed | 45 km | 0.05 bcm/y | 1 | — |
| Palm Valley to Alice Springs PipelineNorthern Territory → Northern Teritory | Australia | Operating | 140 km | 0.3 bcm/y | 1 | 1983 |
| Palmi-Maida Gas Pipeline | Italy | Operating | 77 km | Not reported | 1 | 1995 |
| Palmi-Martirano Gas Pipeline | Italy | Operating | 113 km | Not reported | 1 | 2004 |
| Palmillas-Toluca Gas PipelineQuerétaro → Mexico | Mexico | Operating | 127 km | 0.98 bcm/y | 1 | 2003 |
| Palmi–Messina Gas Pipeline | Italy | Operating | 32 km | Not reported | 1 | — |
| Panagiurishte-Pirdop Gas Pipeline | Bulgaria | Operating | 62 km | Not reported | 1 | 2023 |
| Pancevo-Horgos Gas Pipeline | Serbia | Operating | 122 km | Not reported | 1 | — |
| Pancevo-Horgos Gas Pipeline | Serbia | Operating | 114 km | Not reported | 1 | — |
| Panhandle Eastern Gas PipelineOklahoma → Indiana, Ohio | United States | Operating | 1,384 km | 28.6 bcm/y | 1 | 1929 |
| Papua LNG PipelineGulf Province → National Capital District | Papua New Guinea | Proposed | 320 km | 7.62 bcm/y | 1 | 2027 |
| Papua New Guinea to Queensland Gas Pipeline | Papua New Guinea, Australia | Cancelled | 3,800 km | 6.13 bcm/y | 1 | 2001 |
| Paracin - Prahovo Gas Pipeline | Serbia | Proposed | 239 km | Not reported | 1 | — |
| Paraná-Uruguayana Gas PipelineEntre Ríos → Rio Grande do Sul | Argentina, Brazil | Operating | 437 km | 5.48 bcm/y | 1 | 2000 |
| Parma-Cortemaggiore Gas Pipeline | Italy | Operating | 43 km | Not reported | 1 | 1995 |
| Parma–Pontremoli Gas Pipeline | Italy | Operating | 71 km | Not reported | 1 | 2002 |
| Parmelia Gas PipelineWestern Australia → Western Australia | Australia | Operating | 445 km | 0.7 bcm/y | 1 | 1972 |
| Paso Norte PipelineNew Mexico → Chihuahua | United States, Mexico | Cancelled | 547 km | 3.74 bcm/y | 1 | — |
| Passo Gries-Masera Gas Pipeline | Italy | Operating | 42 km | Not reported | 1 | 1998 |
| Paterna-Tivissa Gas Pipeline | Spain | Operating | 226 km | Not reported | 1 | 1980 |
| Patima-Livadeia Gas Pipeline | Greece | Proposed | 100 km | Not reported | 1 | 2027 |
| Payra-Barishal-Gopalganj Gas Transmission Pipeline | Bangladesh | Cancelled | 153 km | Not reported | 1 | 2025 |
| Pazhga-Vizinga Gas PipelineRepublic of Komi → Komi Republic | Russia | Proposed | 45 km | 0.07 bcm/y | 1 | 2024 |
| País Vasco Gas Pipeline | Spain | Operating | 267 km | Not reported | 1 | 1980 |
| Pearl North Field Gas PipelinesPersian Gulf → Al Khor | Qatar | Operating | 64 km | 16.5 bcm/y | 1 | 2010 |
| Pearl North Field Gas PipelinesPersian Gulf → Al Khor | Qatar | Operating | 52 km | Not reported | 1 | 2008 |
| Pecos Trail PipelineTexas → Texas | United States | Cancelled | 753 km | 18.9 bcm/y | 1 | 2019 |
| Pelczyce-Poznan Gas Pipeline | Poland | Operating | 211 km | Not reported | 1 | — |
| Pelican PipelineLouisiana → Louisiana | United States | Under construction | 274 km | 20.4 bcm/y | 1 | 2027 |
| Pelyatka-Messoyakha Gas PipelineKrasnoyarsk Krai → Krasnoyarsk Krai | Russia | Operating | 117 km | 1.8 bcm/y | 1 | 2016 |
| Pelyatka-Messoyakha Gas PipelineKrasnoyarsk Krai → Krasnoyarsk Krai | Russia | Operating | 62 km | 1.8 bcm/y | 1 | 2016 |
| Peninsular Gas Utilization PipelineTerengganu → Perlis | Malaysia | Operating | 2,623 km | 35.8 bcm/y | 1 | 1993 |
| PennEast Gas PipelinePennsylvania → Pennsylvania | United States | Cancelled | 109 km | 11.3 bcm/y | 1 | 2021 |
| PennEast Gas PipelinePennsylvania → New Jersey | United States | Cancelled | 80 km | 11.3 bcm/y | 1 | 2023 |
| Penta-West Gas Pipeline | Austria | Operating | 95 km | Not reported | 1 | 1999 |
| Penápolis-Canoas Gas PipelineSão Paulo → Rio Grande do Sul | Brazil | Proposed | 1,168 km | 2.92 bcm/y | 1 | — |
| Perito Moreno Gas PipelineNeuquén → Buenos Aires | Argentina | Operating | 573 km | 9.49 bcm/y | 1 | 2023 |
| Perito Moreno Gas PipelineLa Pampa → Córdoba | Argentina | Proposed | 280 km | 7.3 bcm/y | 1 | — |
| Perito Moreno Gas PipelineNeuquén → Buenos Aires | Argentina | Proposed | 569 km | 7.3 bcm/y | 1 | 2027 |
| Permian Global Access PipelineTexas → Louisiana | United States | Cancelled | 1,006 km | 20.4 bcm/y | 1 | 2022 |
| Permian Highway PipelineTexas → Texas | United States | Operating | 692 km | 21.5 bcm/y | 1 | 2020 |
| Permian Highway PipelineTexas → Texas | United States | Operating | 24 km | 5.62 bcm/y | 1 | 2023 |
| Permian Katy PipelineTexas → Texas | United States | Cancelled | 837 km | 20.4 bcm/y | 1 | 2021 |
| Permian Pass Gas PipelineTexas → Louisiana | United States | Cancelled | Not reported | 20.4 bcm/y | 1 | 2023 |
| Persian Gas Pipeline | Iran, Türkiye, Greece, Italy, Switzerland, Austria, Germany, France, Spain | Cancelled | 3,300 km | 40 bcm/y | 1 | — |
| Peru LNG Gas PipelineAyacucho → Lima | Peru | Operating | 408 km | 6.34 bcm/y | 1 | 2010 |
| Petange-Esch sur Alzette Gas Pipeline | Luxembourg | Operating | 11 km | Not reported | 1 | — |
| Petrich–Dubnitza Gas Pipeline | Bulgaria | Operating | 99 km | Not reported | 1 | — |
| Petroci Foxtrot Gas Pipeline | Côte d'Ivoire | Operating | 80 km | 1.57 bcm/y | 1 | 1999 |
| Petrovsk-Elets Gas PipelineSaratov Oblast → Lipetsk | Russia | Operating | 600 km | 16.4 bcm/y | 1 | 1982 |
| Petrovsk-Elets Gas Pipeline | Russia | Operating | 533 km | 16.4 bcm/y | 1 | 1983 |
| Petrovsk-Novopskov Gas PipelineSaratov Oblast → Luhansk | Ukraine, Russia | Operating | 609 km | 14 bcm/y | 1 | 1980 |
| Phased Gas Pipeline NetworkǁKaras → Northern Cape | South Africa, Namibia | Proposed | 411 km | Not reported | 1 | — |
| Phased Gas Pipeline NetworkEastern Cape → KwaZulu-Natal | South Africa | Proposed | 700 km | Not reported | 1 | — |
| Phased Gas Pipeline NetworkWestern Cape → Eastern Cape | South Africa | Proposed | 353 km | Not reported | 1 | — |
| Phased Gas Pipeline NetworkKwaZulu-Natal → Mpumalanga/Free State | South Africa | Proposed | 515 km | Not reported | 1 | — |
| Phased Gas Pipeline NetworkWestern Cape → Western Cape | South Africa | Proposed | 85 km | Not reported | 1 | — |
| Phased Gas Pipeline NetworkWestern Cape → Western Cape | South Africa | Proposed | 425 km | Not reported | 1 | — |
| Phased Gas Pipeline NetworkNorthern Cape → Western Cape | South Africa | Proposed | 153 km | Not reported | 1 | — |
| Phased Gas Pipeline Network | South Africa | Proposed | 210 km | Not reported | 1 | — |
| Phased Gas Pipeline Network | South Africa | Proposed | 388 km | Not reported | 1 | — |
| Phased Gas Pipeline Network | South Africa | Proposed | 686 km | Not reported | 1 | — |
| Phool Nagar-Dawood Hercules Gas LooplinePunjab → Punjab | Pakistan | Operating | 65 km | Not reported | 1 | — |
| Phool Nagar-Dawood Hercules Gas PipelinePunjab → Punjab | Pakistan | Operating | 62 km | Not reported | 1 | — |
| Pilbara Pipeline SystemWestern Australia → Western Australia | Australia | Operating | 251 km | 1.67 bcm/y | 1 | 1995 |
| Pince-Lendava-Kidričevo Gas Pipeline | Slovenia | Proposed | 73 km | 1.54 bcm/y | 1 | 2028 |
| Pioneer Gas PipelineAlberta → Alberta | Canada | Operating | 131 km | 1.33 bcm/y | 1 | 2019 |
| Pioneer Gas PipelineAlberta → Alberta | Canada | Under construction | 120 km | 3.17 bcm/y | 1 | 2019 |
| Piperevo-Pernik Gas Pipeline | Bulgaria | Proposed | 53 km | Not reported | 1 | 2026 |
| Pir Koh- Sui Gas PipelineBalochistan → Balochistan | Pakistan | Operating | 71 km | Not reported | 1 | — |
| Pisarevka-Anapa Gas PipelineVoronezh Oblast → Krasnodar Krai | Russia | Operating | 880 km | 63 bcm/y | 1 | 2016 |
| Plathong Field Gas Pipeline | Thailand | Operating | 42 km | 2.56 bcm/y | 1 | 1984 |
| Plavecky–Nitra Gas Pipeline | Slovakia | Operating | 65 km | Not reported | 1 | — |
| Plaza Huincul-Senillosa Gas PipelineNeuquén → Neuquén | Argentina | Operating | 67 km | Not reported | 1 | 1993 |
| Pluto LNG Export Gas PipelineWestern Australia → Western Australia | Australia | Operating | 181 km | Not reported | 1 | 2012 |
| Pluto-KPG Interconnector Gas PipelineWestern Australia → Western Australia | Australia | Operating | 3.2 km | 6.8 bcm/y | 1 | 2022 |
| Pochinki-Anapa Gas PipelineNizhgorod Oblast → Krasnodar Krai | Russia | Under construction | 1,625 km | 63 bcm/y | 1 | 2023 |
| Pochinki-Gryazovets Gas PipelineNizhny Novgorod Oblast → Vologda Oblast | Russia | Operating | 653 km | 22 bcm/y | 1 | 2012 |
| Pochinki-Izobilnoe-North Stavropol Underground Gas Storage PipelineNizhny Novgorod Oblast → Stavropol Krai | Russia | Operating | 937 km | 30 bcm/y | 1 | 1998 |
| Pochinki-Penza Gas PipelineNizhny Novgorod Oblast → Penza Oblast | Russia | Operating | 174 km | Not reported | 1 | 2011 |
| Pochinki-Yaroslavl Gas PipelineNizhny Novgorod Oblast → Yaroslavl Oblast | Russia | Operating | 443 km | 36 bcm/y | 1 | — |
| Podisor–Giurgiu Gas Pipeline | Romania | Operating | 58 km | Not reported | 1 | — |
| Poggio Renatico-Cortemaggiore Gas Pipeline | Italy | Operating | 139 km | Not reported | 1 | 1985 |
| Poggio Renatico–Minerbio Gas Pipeline | Italy | Operating | 19 km | Not reported | 1 | 1988 |
| Poggio Renatico–Minerbio Gas Pipeline | Italy | Operating | 0 km | Not reported | 1 | 2015 |
| Pogórska-Wola-Tworzen Gas Pipeline | Poland | Operating | 168 km | Not reported | 1 | 2022 |
| Point B-Pupuk Iskandar Muda Gas PipelineAceh → Aceh | Indonesia | Operating | 6 km | 1.53 bcm/y | 1 | 1998 |
| Point Comfort PipelineTexas → Texas | United States | Cancelled | 43 km | 10.2 bcm/y | 1 | — |
| Point Thomson Unit Gas Transmission PipelineAlaska → Alaska | United States | Proposed | 101 km | 8.84 bcm/y | 1 | 2029 |
| Poirino–Alessandria Gas Pipeline | Italy | Operating | 66 km | Not reported | 1 | 1971 |
| Pojate-Leskovac Gas Pipeline | Serbia | Operating | 118 km | Not reported | 1 | — |
| Poland-Slovakia Gas Pipeline | Poland, Slovakia | Operating | 165 km | 5.7 bcm/y | 1 | 2022 |
| Poland-Slovakia Gas Pipeline | Poland, Slovakia | Operating | 0 km | 5.7 bcm/y | 1 | 2024 |
| Poland-Ukraine Interconnector Gas Pipeline | Poland, Ukraine | Cancelled | 110 km | 8 bcm/y | 1 | 2022 |
| Polarled Gas PipelineNorwegian Sea → Møre og Romsdal | Norway | Operating | 482 km | 21 bcm/y | 1 | 2018 |
| Polyana-Underground Gas Storage Compressor Station PipelineRepublic of Bashkortostan → Orenburg Oblast | Russia | Operating | 310 km | Not reported | 1 | 1987 |
| Pomelo Connector PipelineTexas → Texas | United States | Operating | 23 km | 4.09 bcm/y | 1 | 2019 |
| Pontremoli–La Spezia Gas Pipeline | Italy | Operating | 19 km | Not reported | 1 | 1969 |
| Pontremoli–La Spezia Gas Pipeline | Italy | Operating | 43 km | Not reported | 1 | 2026 |
Length is GEM's reported figure where given. When every segment of a project repeats the same figure it is counted once, not summed; see methodology.