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 1501–1800 of 4246 pipelines, sorted by name. The filters below apply to this page.
| Countries | Segments | |||||
|---|---|---|---|---|---|---|
| Heilongjiang Natural Gas Pipeline NetworkHeilongjiang → Heilongjiang | China | Proposed | 168 km | Not reported | 1 | — |
| Heilongjiang Natural Gas Pipeline NetworkHeilongjiang → Heilongjiang | China | Proposed | 39 km | Not reported | 1 | — |
| Heilongjiang Natural Gas Pipeline NetworkHeilongjiang → Heilongjiang | China | Operating | 11 km | Not reported | 1 | 2020 |
| Heilongjiang Natural Gas Pipeline NetworkHeilongjiang → Heilongjiang | China | Proposed | 13 km | 0.07 bcm/y | 1 | — |
| Heilongjiang Natural Gas Pipeline NetworkHeilongjiang → Heilongjiang | China | Operating | 42 km | 0.08 bcm/y | 1 | 2021 |
| Heilongjiang Natural Gas Pipeline NetworkHeilongjiang → Heilongjiang | China | Proposed | 43 km | 0.16 bcm/y | 1 | — |
| Helsinki–Siuntio Gas Pipeline | Finland | Operating | 41 km | Not reported | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 90 km | 0.48 bcm/y | 1 | 2011 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Under construction | 159 km | 1.02 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Proposed | 257 km | 3 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Under construction | 178 km | 2.4 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 247 km | 2 bcm/y | 1 | 2016 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 120 km | 0.46 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 198 km | 0.25 bcm/y | 1 | 2006 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Cancelled | 55 km | Not reported | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Under construction | 152 km | 2 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Proposed | 328 km | 3 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 35 km | 0.2 bcm/y | 1 | 2024 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 99 km | 2 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 103 km | 0.29 bcm/y | 1 | 2022 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 95 km | 2 bcm/y | 1 | 2025 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 312 km | 1.14 bcm/y | 1 | 2012 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 250 km | 0.4 bcm/y | 1 | 2001 |
| Henan Gas Pipeline NetworkHenan → Hubei | China | Operating | 450 km | 2.25 bcm/y | 1 | 2006 |
| Henan Gas Pipeline NetworkHenan → Hebei | China | Retired | 337 km | 0.4 bcm/y | 1 | 1986 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Operating | 101 km | 0.48 bcm/y | 1 | 2016 |
| Hermanowice-Jaroslaw Pipeline | Poland | Proposed | 39 km | Not reported | 1 | 2029 |
| Hermanowice-Strachocina Pipeline | Poland | Operating | 72 km | Not reported | 1 | 2020 |
| Hewett Pipeline System | United Kingdom | Retired | 185 km | 9.2 bcm/y | 1 | 1972 |
| High Island Offshore Gas Pipeline SystemGulf of Mexico → Gulf of Mexico | United States | Operating | 383 km | 20.4 bcm/y | 1 | 1978 |
| High Pressure Gujarat Gas Grid NetworkGujarat → Gujarat | India | Operating | 2,207 km | 11.3 bcm/y | 1 | 2016 |
| High Pressure Pipeline to West Macedonia | Greece | Under construction | 157 km | Not reported | 1 | 2025 |
| Hill Lake PipelineTexas → Texas | United States | Operating | 27 km | 3.07 bcm/y | 1 | — |
| Himeji Gas PipelineKansai → Kansai | Japan | Operating | 4 km | Not reported | 1 | 2020 |
| Himeji-Okayama Gas PipelineKansai → Hyogo | Japan | Operating | 85 km | Not reported | 1 | 2014 |
| Hoceinia-Algeria Gas PipelineAin-Defla → Algeria | Algeria | Operating | 91 km | Not reported | 1 | 2019 |
| Hoeningen-Oberaußem Gas PipelineNorth Rhine-Westphalia → North Rhine-Westphalia | Germany | Proposed | 14 km | Not reported | 1 | 2029 |
| Hohot-Zhangjiakou-Yanqing Gas PipelineInner Mongolia → Beijing | China | Cancelled | 227 km | 2 bcm/y | 1 | — |
| Hohot-Zhangjiakou-Yanqing Gas PipelineInner Mongolia → Inner Mongolia | China | Operating | 212 km | 2 bcm/y | 1 | 2018 |
| Hokuko Connection Pipeline | Japan | Operating | 12 km | Not reported | 1 | 1980 |
| Holowczyce–Pulawy Gas Pipeline | Poland | Operating | 133 km | Not reported | 1 | — |
| Honjo LineTakasaki-shi → Takasaki-shi | Japan | Operating | 1.7 km | Not reported | 1 | 2000 |
| Horgos-Gospodinci Gas Pipeline | Serbia | Operating | 87 km | Not reported | 1 | — |
| Horizon Gas PipelineIllinois → Illinois | United States | Operating | 117 km | 3.88 bcm/y | 1 | 2002 |
| Hoscht-St.Magrethen Gas Pipeline | Austria, Switzerland | Operating | 6 km | Not reported | 1 | — |
| Hosokusa Pipeline | Japan | Operating | 17 km | Not reported | 1 | 1962 |
| Hospozin–Dobré Pole Gas Pipeline | Czechia | Operating | 66 km | Not reported | 1 | — |
| Hospozin–Rozvadov Gas Pipeline | Czechia | Operating | 143 km | Not reported | 1 | — |
| Hostim–Malesovice Gas Pipeline | Czechia | Operating | 45 km | Not reported | 1 | — |
| Houston Gas Pipeline (HPL) SystemTexas → Texas | United States | Operating | 6,116 km | 54.2 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Under construction | 142 km | 0.2 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 76 km | 0.48 bcm/y | 1 | 2015 |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 100 km | 0.86 bcm/y | 1 | 2014 |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 140 km | 0.5 bcm/y | 1 | 2014 |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 180 km | 0.3 bcm/y | 1 | 2017 |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Cancelled | 367 km | 4.06 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 70 km | 0.16 bcm/y | 1 | 2013 |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Shelved | 110 km | Not reported | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 181 km | 0.4 bcm/y | 1 | 2013 |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Under construction | 138 km | 0.18 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Proposed | 53 km | 0.6 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Under construction | 16 km | 0.1 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Proposed | 135 km | 0.25 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Under construction | 269 km | 0.62 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Under construction | 161 km | Not reported | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 62 km | 0.07 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 29 km | 0.1 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHubei → Hubei | China | Operating | 62 km | 0.18 bcm/y | 1 | 2023 |
| Huelva-Córdoba Gas Pipeline | Spain | Operating | 494 km | Not reported | 1 | 1988 |
| Hugh Brinson Gas PipelineTexas → Texas | United States | Under construction | 711 km | 37.8 bcm/y | 1 | 2026 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 246 km | 0.44 bcm/y | 1 | 2015 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 188 km | 0.64 bcm/y | 1 | 2006 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 62 km | 0.26 bcm/y | 1 | 2017 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 79 km | 1.16 bcm/y | 1 | 2020 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Cancelled | 37 km | 0.95 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 171 km | 0.95 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 132 km | 0.22 bcm/y | 1 | 2022 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 112 km | 0.95 bcm/y | 1 | 2020 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 50 km | 0.13 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 60 km | 0.42 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 83 km | 0.9 bcm/y | 1 | 2021 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 20 km | 0.16 bcm/y | 1 | 2022 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 161 km | 0.41 bcm/y | 1 | 2022 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Under construction | 65 km | Not reported | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Proposed | 93 km | Not reported | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 63 km | 0.6 bcm/y | 1 | 2017 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 63 km | 0.38 bcm/y | 1 | 2017 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 50 km | 0.15 bcm/y | 1 | 2019 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 48 km | 0.19 bcm/y | 1 | 2019 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 64 km | 0.16 bcm/y | 1 | 2022 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 207 km | 0.45 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Proposed | 135 km | 0.2 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 138 km | 0.5 bcm/y | 1 | 2007 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 67 km | 0.8 bcm/y | 1 | 2006 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 213 km | 0.48 bcm/y | 1 | 2012 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 35 km | 0.05 bcm/y | 1 | 2010 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 111 km | 0.37 bcm/y | 1 | 2025 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Proposed | 98 km | 0.37 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Operating | 36 km | 0.35 bcm/y | 1 | 2021 |
| Hunan Gas Pipeline NetworkHunan → Hunan | China | Proposed | 168 km | 1 bcm/y | 1 | — |
| Hungary-Austria Interconnector Gas PipelineLower Austria → Lower Austria | Austria | Operating | 45 km | 4.26 bcm/y | 1 | 1996 |
| Hungary-Austria Interconnector Gas Pipeline | Austria, Hungary | Operating | 184 km | 4.26 bcm/y | 1 | 1996 |
| Hungary-Slovenia-Italy Interconnector Gas Pipeline | Hungary | Cancelled | 41 km | 0.21 bcm/y | 1 | 2024 |
| Hungary-Slovenia-Italy Interconnector Gas Pipeline | Slovenia | Shelved | 101 km | Not reported | 1 | 2026 |
| Hungary-Slovenia-Italy Interconnector Gas Pipeline | Hungary | Cancelled | 150 km | 2.1 bcm/y | 1 | 2025 |
| Hurghada–Safaga Gas PipelineRed Sea Governorate → Red Sea Governorate | Egypt | Operating | 39 km | Not reported | 1 | 2021 |
| Hust–Satu Mare Gas Pipeline | Romania, Ukraine | Operating | 21 km | 2 bcm/y | 1 | 1999 |
| IGAT 1 Gas PipelineKhuzestan → Gilan | Iran | Operating | 1,104 km | Not reported | 1 | 1970 |
| IGAT 10 Gas Pipeline | Iran | Operating | 632 km | 25.3 bcm/y | 1 | 2014 |
| IGAT 11 Gas PipelineBushehr → Azerbaijan | Iran | Under construction | 1,200 km | 40.1 bcm/y | 1 | 2026 |
| IGAT 2 Gas PipelineFars → Qazvin | Iran | Operating | 680 km | 32.9 bcm/y | 1 | — |
| IGAT 3 Gas PipelineBushehr → Markazi | Iran | Operating | 1,195 km | 32.9 bcm/y | 1 | — |
| IGAT 4 Gas PipelineBushehr → Markazi | Iran | Operating | 1,145 km | 40.1 bcm/y | 1 | — |
| IGAT 6 Gas PipelineBushehr → Khūzestān | Iran | Operating | 600 km | 39.7 bcm/y | 1 | 2018 |
| IGAT 7 Gas PipelineBushehr → Sistan-Baluchistan | Iran | Operating | 907 km | 18.4 bcm/y | 1 | 2010 |
| IGAT 7 Gas Pipeline | Iran | Operating | 290 km | 11.2 bcm/y | 1 | 2024 |
| IGAT 8 Gas Pipeline | Iran | Operating | 1,000 km | 39.7 bcm/y | 1 | 2016 |
| IGAT 9 Gas Pipeline | Iran | Under construction | 1,900 km | 39.7 bcm/y | 1 | 2022 |
| Iacanga-Uberaba Gas PipelineSão Paulo → Minas Gerais | Brazil | Proposed | 260 km | 2.19 bcm/y | 1 | — |
| Ibadan–Jebba Gas Pipeline | Nigeria | Proposed | 510 km | Not reported | 1 | — |
| Ibaraki Main Gas Pipeline | Japan | Operating | 92 km | Not reported | 1 | 2021 |
| Ibaraki-Tochigi Gas Pipeline | Japan | Operating | 81 km | Not reported | 1 | 2016 |
| Ichthys Gas PipelineOffshore Australia → Western Australia | Australia | Operating | 889 km | 16.4 bcm/y | 1 | 2018 |
| Idd Al Shargi North Dome-Wakrah Station Gas Pipeline | Qatar | Operating | 89 km | Not reported | 1 | — |
| Idku-Abu Hummus Gas PipelineBeheira → Beheira | Egypt | Operating | 30 km | Not reported | 1 | 2022 |
| Igrim-Serov-Nizhny Tagil Gas PipelineTyumen region → Sverdlovsk Oblast | Russia | Operating | 525 km | 10 bcm/y | 1 | 1966 |
| Ihtiman-Gorni Bogrov Gas Pipeline | Bulgaria | Proposed | 50 km | Not reported | 1 | 2028 |
| Ihtiman–Dubnitza Gas Pipeline | Bulgaria | Operating | 64 km | Not reported | 1 | — |
| Ikhala-Sortavala Gas PipelineRepublic of Karelia → Republic of Karelia | Russia | Proposed | 46 km | 0.07 bcm/y | 1 | — |
| Ilichevsk-Yerevan Gas Pipeline | Armenia | Operating | 87 km | Not reported | 1 | 1984 |
| Ilijan Gas PipelineBatangas → Batangas | Philippines | Operating | 15 km | 6.64 bcm/y | 1 | 2002 |
| Ilizi-Hassi-Kifaf Gas Pipeline | Algeria | Operating | 79 km | Not reported | 1 | 2004 |
| Imatra–Mantsala Gas Pipeline | Finland | Operating | 207 km | Not reported | 1 | — |
| Imo River-Aba Industries Gas Pipeline | Nigeria | Operating | 32 km | 0.32 bcm/y | 1 | — |
| In Salah Gas PipelineTamanrasset → Ouargla | Algeria | Operating | 520 km | 9 bcm/y | 1 | 2003 |
| Independence Trail Natural Gas PipelineGulf of Mexico → Gulf of Mexico | United States | Operating | 222 km | 10.2 bcm/y | 1 | 2007 |
| India-Myanmar-Bangladesh Gas Pipeline | India, Bangladesh, Myanmar | Proposed | 6,900 km | Not reported | 1 | — |
| Ingolstadt-Günzburg Gas PipelineBavaria → Bavaria | Germany | Operating | 79 km | Not reported | 1 | — |
| Inkoo–Mantsala Gas Pipeline | Finland | Operating | 108 km | Not reported | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Under construction | 53 km | 1.6 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 281 km | 1 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 300 km | 0.8 bcm/y | 1 | 2008 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 119 km | 1 bcm/y | 1 | 2007 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 426 km | 0.4 bcm/y | 1 | 2008 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 151 km | 0.4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 108 km | 1 bcm/y | 1 | 2019 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 166 km | 0.48 bcm/y | 1 | 2022 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 138 km | 0.2 bcm/y | 1 | 2003 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 62 km | 0.1 bcm/y | 1 | 2012 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Under construction | 262 km | 1.21 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Under construction | 126 km | 0.5 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 50 km | 0.4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Shelved | 130 km | 0.2 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 167 km | 0.9 bcm/y | 1 | 2011 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Ningxia | China | Operating | 25 km | 0.13 bcm/y | 1 | 2009 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 183 km | 0.5 bcm/y | 1 | 2015 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 60 km | 0.4 bcm/y | 1 | 2026 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Shelved | 70 km | 0.5 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Shelved | 450 km | 2 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 70 km | 0.25 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 60 km | 0.1 bcm/y | 1 | 2010 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 258 km | 0.39 bcm/y | 1 | 2024 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Cancelled | 382 km | Not reported | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 370 km | 0.47 bcm/y | 1 | 2012 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 308 km | 0.4 bcm/y | 1 | 2018 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 518 km | 6 bcm/y | 1 | 2011 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 506 km | 1.3 bcm/y | 1 | 2003 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 28 km | Not reported | 1 | 2013 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 250 km | 1 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 30 km | 0.34 bcm/y | 1 | 2022 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Operating | 18 km | 0.2 bcm/y | 1 | 2022 |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 49 km | 0.4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 13 km | 4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 18 km | 4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Shelved | 11 km | 4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Shelved | 15 km | 4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 0.6 km | 1 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Under construction | 2.5 km | 0.43 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 4.3 km | 0.45 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 21 km | 0.45 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 29 km | 0.65 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkInner Mongolia → Inner Mongolia | China | Proposed | 230 km | 0.4 bcm/y | 1 | — |
| Intensity Gas PipelineNorth Dakota → North Dakota | United States | Proposed | 219 km | 11.2 bcm/y | 1 | 2029 |
| Intensity Gas PipelineNorth Dakota → North Dakota | United States | Proposed | 335 km | 4.39 bcm/y | 1 | 2029 |
| Inter-Caribbean Natural Gas Pipeline | Trinidad and Tobago, Barbados, Martinique, Guadeloupe | Cancelled | 959 km | 1.53 bcm/y | 1 | — |
| Interoceanic Corridor Gas PipelineVeracruz → Oaxaca | Mexico | Proposed | 247 km | 1.53 bcm/y | 1 | — |
| Intesar-Brega Gas PipelineSirte Basin → Al Wahat | Libya | Operating | 333 km | 42.5 bcm/y | 1 | — |
| Intesar-Sahel Gas Pipeline | Libya | Operating | 129 km | 19.8 bcm/y | 1 | — |
| Intisar–Sarir Gas PipelineSirte Basin → Cyrenaica | Libya | Operating | 235 km | Not reported | 1 | 2017 |
| Ionian Adriatic Gas PipelineFier → Dalmatia | Albania, Montenegro, Croatia | Proposed | 540 km | 5 bcm/y | 1 | 2029 |
| Iran-Armenia Gas Pipeline | Iran, Armenia | Operating | 141 km | 2.27 bcm/y | 1 | 2007 |
| Iran-Iraq Gas Pipeline | Iran, Iraq | Operating | Not reported | 0.36 bcm/y | 1 | 2017 |
| Iran-Oman Gas PipelineHormozgan → Al Batinah North | Iran, Oman | Under construction | 1,000 km | 10 bcm/y | 1 | — |
| Iran-Pakistan PipelineBushehr → Sindh | Iran, Pakistan | Under construction | 2,775 km | 7.67 bcm/y | 1 | 2024 |
| Iran-Pakistan-India PipelineBushehr → India | Iran, Pakistan, India | Cancelled | 2,700 km | 39.7 bcm/y | 1 | — |
| Iran–Iraq–Syria Gas Pipeline | Iran, Iraq, Syria, Lebanon | Cancelled | 5,600 km | 40.1 bcm/y | 1 | — |
| Iraq-Kuwait Gas Pipeline | Iraq, Kuwait | Cancelled | 97 km | 2.06 bcm/y | 1 | — |
| Ironbark Project PipelineQueensland → Queensland | Australia | Cancelled | 34 km | 1.2 bcm/y | 1 | 2021 |
| Iroquois Gas PipelineNew York → New York | United States | Operating | 669 km | 5.11 bcm/y | 1 | 1992 |
| Iroquois Gas PipelineNew York → New York | United States | Cancelled | 0 km | 6.64 bcm/y | 1 | — |
| Iroquois Gas PipelineNew York → New York | United States | Proposed | 0 km | 1.28 bcm/y | 1 | 2027 |
| Iruma Gas Pipeline | Japan | Operating | 48 km | Not reported | 1 | 2005 |
| Irun-Biriatou Gas Pipeline | Spain, France | Operating | 4 km | 11.3 bcm/y | 1 | — |
| Isan Gas Pipeline | Thailand | Shelved | 204 km | Not reported | 1 | — |
| Ise Bay Gas PipelineMie → Chūbu | Japan | Operating | 20 km | Not reported | 1 | 2013 |
| Ishikari Trunk LineJo Nishi → Hokkaido | Japan | Operating | 19 km | Not reported | 1 | 2011 |
| Ishimbay-Ufa Gas PipelineRepublic of Bashkortostan → Republic of Bashkortostan | Russia | Operating | 143 km | Not reported | 1 | 1967 |
| Island Gas ConnectorWashington → British Columbia | United States | Cancelled | 129 km | Not reported | 1 | 2020 |
| Israel Cyprus Gas Pipeline | Israel, Cyprus | Proposed | 215 km | 4 bcm/y | 1 | — |
| Israel Jordan Gas Pipeline | Israel, Jordan | Operating | 65 km | Not reported | 1 | 2020 |
| Israel Natural Gas Transmission System | Israel, Jordan | Operating | 619 km | 15 bcm/y | 1 | 2011 |
| Israel–Egypt Offshore Gas Pipeline | Israel, Egypt | Proposed | 593 km | 6.7 bcm/y | 1 | — |
| Israel–Egypt Onshore Gas Pipeline | Israel, Egypt | Under construction | 65 km | 6 bcm/y | 1 | — |
| Istrana-Caldonazzo Gas Pipeline | Italy | Operating | 110 km | Not reported | 1 | 1989 |
| Istrana–Mira Gas Pipeline | Italy | Operating | 30 km | Not reported | 1 | 1978 |
| Itaporanga-Carmópolis PipelineSergipe → Sergipe | Brazil | Operating | 69 km | 4.64 bcm/y | 1 | 2006 |
| Ivatsevichy-Kobryn-Dolyna Gas Pipeline | Belarus, Ukraine | Operating | 292 km | 29 bcm/y | 1 | 1976 |
| Ivatsevichy-Kobryn-Dolyna Gas Pipeline | Belarus, Ukraine | Operating | 292 km | 29 bcm/y | 1 | 1981 |
| Ivatsevichy-Kobryn-Dolyna Gas Pipeline | Belarus | Operating | 176 km | Not reported | 1 | 1987 |
| Iwafune-Oki Gas Pipeline | Japan | Operating | 21 km | 0.24 bcm/y | 1 | 1990 |
| Iwaki Offshore line | Japan | Retired | 41 km | Not reported | 1 | 1983 |
| Izmit-Eregli Pipeline | Türkiye | Operating | 210 km | Not reported | 1 | 1996 |
| Izumi LineKumamoto-shi → Kumamoto-shi | Japan | Operating | 2.6 km | Not reported | 1 | 2011 |
| Izumisawa Trunk LineChitose-shi → Chitose-shi | Japan | Operating | 2 km | Not reported | 1 | 2008 |
| Iğdır-Nakhchivan Gas PipelineIğdır → Nakhchivan | Türkiye, Azerbaijan | Operating | 157 km | 0.73 bcm/y | 1 | 2024 |
| JAGAL Gas PipelineBrandenburg → Thüringen | Germany | Operating | 338 km | 24 bcm/y | 1 | 1999 |
| JDA-Arthit Gas PipelineGulf of Thailand → Offshore Thailand | Thailand | Operating | 95 km | Not reported | 1 | 2008 |
| Jacutinga-Uberaba Gas PipelineMinas Gerais → Minas Gerais | Brazil | Proposed | 321 km | 2.19 bcm/y | 1 | — |
| Jagdishpur-Haldia-Bokaro-Dhamra Natural Gas Pipeline (JHBDPL)Uttar Pradesh → West Bengal | India | Under construction | 3,546 km | 8.4 bcm/y | 1 | 2025 |
| Jaigarh-Dabhol Gas PipelineRatnagiri → Maharashtra | India | Operating | 60 km | 10.6 bcm/y | 1 | 2021 |
| Jaigarh-Mangalore Gas PipelineRatnagiri → Karnataka | India | Cancelled | 635 km | 6.21 bcm/y | 1 | 2023 |
| Jakhira-Intesar Gas PipelineSirte Basin → Sirte Basin | Libya | Operating | 160 km | 2.4 bcm/y | 1 | — |
| Jamnagar to Dwarka Gas PipelineGujarat → Gujarat | India | Under construction | 100 km | 1.1 bcm/y | 1 | 2024 |
| Jaroslaw-Rozwadów Pipeline | Poland | Proposed | 60 km | Not reported | 1 | 2029 |
| Jauharabad-Chashma Gas PipelinePunjab → Punjab | Pakistan | Operating | 82 km | Not reported | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Shelved | 78 km | 5 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Operating | 136 km | 0.35 bcm/y | 1 | 2011 |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Proposed | 254 km | 2.38 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Cancelled | 639 km | 1.2 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Operating | 171 km | 6.16 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Proposed | 92 km | 6 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Shelved | 154 km | 3.73 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Shelved | 336 km | 6.8 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Shelved | 55 km | 2.76 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Proposed | 48 km | 1.5 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Operating | 101 km | 4 bcm/y | 1 | 2020 |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Shelved | 52 km | 3.27 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Shelved | 133 km | 1.81 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Shelved | 74 km | Not reported | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Operating | 95 km | Not reported | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Cancelled | 332 km | 7.28 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Operating | 112 km | 4.8 bcm/y | 1 | 2025 |
| Jiangsu Coastal Gas PipelineJiangsu → Anhui | China | Operating | 515 km | 12.7 bcm/y | 1 | 2022 |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Proposed | 21 km | Not reported | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Operating | 89 km | 1.84 bcm/y | 1 | 2017 |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Proposed | 91 km | 4.5 bcm/y | 1 | — |
| Jiangsu Coastal Gas PipelineJiangsu → Jiangsu | China | Shelved | 77 km | 0.32 bcm/y | 1 | — |
| Jiangsu-Anhui-Henan PipelineJiangsu → Henan | China | Proposed | 797 km | 18.3 bcm/y | 1 | — |
| Jiangsu-Anhui-Henan PipelineJiangsu → Jiangsu | China | Proposed | 86 km | 1.7 bcm/y | 1 | — |
| Jiangsu-Anhui-Henan PipelineJiangsu → Jiangsu | China | Proposed | 29 km | 0.3 bcm/y | 1 | — |
| Jiangsu-Anhui-Henan Pipeline | China | Proposed | 914 km | Not reported | 1 | — |
| Jiangsu-Anhui-Henan PipelineAnhui → Anhui | China | Under construction | 16 km | 0.23 bcm/y | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 62 km | Not reported | 1 | 2011 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 825 km | Not reported | 1 | 2010 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 57 km | 1 bcm/y | 1 | 2010 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 150 km | 2.6 bcm/y | 1 | 2010 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 136 km | Not reported | 1 | 2010 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 19 km | Not reported | 1 | 2010 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 101 km | Not reported | 1 | 2010 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 29 km | 0.13 bcm/y | 1 | 2012 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 138 km | 0.31 bcm/y | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Proposed | 58 km | Not reported | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Shelved | 98 km | 0.07 bcm/y | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Under construction | 57 km | 0.13 bcm/y | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 340 km | 0.87 bcm/y | 1 | 2018 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 129 km | 0.32 bcm/y | 1 | 2018 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Proposed | 176 km | Not reported | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 97 km | 0.28 bcm/y | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Proposed | 39 km | Not reported | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 51 km | Not reported | 1 | 2010 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Under construction | 234 km | 0.31 bcm/y | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 18 km | 0.1 bcm/y | 1 | 2013 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Proposed | 15 km | Not reported | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 18 km | 0.2 bcm/y | 1 | 2017 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Under construction | 20 km | 0.13 bcm/y | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 19 km | 0.5 bcm/y | 1 | 2021 |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Proposed | 19 km | Not reported | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 23 km | Not reported | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Under construction | 64 km | Not reported | 1 | — |
| Jiangxi Natural Gas Pipeline NetworkJiangxi → Jiangxi | China | Operating | 31 km | 0.06 bcm/y | 1 | — |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Operating | 74 km | 0.15 bcm/y | 1 | — |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Under construction | 312 km | 0.22 bcm/y | 1 | — |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Operating | 113 km | 0.34 bcm/y | 1 | 2024 |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Proposed | 116 km | 0.22 bcm/y | 1 | — |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Operating | 221 km | 1.22 bcm/y | 1 | 2010 |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Operating | 350 km | 1.36 bcm/y | 1 | 2016 |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Proposed | 90 km | 0.1 bcm/y | 1 | — |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Proposed | 62 km | Not reported | 1 | — |
| Jilin Gas Pipeline NetworkJilin → Jilin | China | Operating | 128 km | 4 bcm/y | 1 | 2016 |
| Jilin Gas Pipeline NetworkPrimorye-Territory → Jilin | China, Russia | Proposed | 80 km | Not reported | 1 | — |
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.