Directory
Gas transmission pipelines
Every gas transmission pipeline above Global Energy Monitor's size threshold, grouped by project: 3748 pipelines made up of 3748 tracked segments across 139 countries. 3748 have a route drawn on the map.
Pipelines
3,748
3748 tracked segments
Operating length
1,120,863 km
2697 pipelines operating
Under construction
66,344 km
234 pipelines building
Terminal connections
3,221
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? Search covers every page on the site.
Showing 1201–1500 of 3748 pipelines, sorted by name. The filters below apply to this page.
| Countries | Segments | |||||
|---|---|---|---|---|---|---|
| Gulf South Gas PipelineKeatchie → Mississippi | United States | Operating | 391 km | 17.4 bcm/y | 1 | 2008 |
| Gulf South Gas PipelineMississippi → Mississippi | United States | Proposed | 177 km | 15.3 bcm/y | 1 | 2029 |
| Gulf of Guinea Gas PipelineNigeria → Equatorial Guniea | Nigeria, Equatorial Guinea | Proposed | 200 km | Not reported | 1 | — |
| Gulf of Suez-SUMED Offshore Gas PipelineRed Sea → Ain Sokhna | Egypt | Under construction | 12 km | Not reported | 1 | — |
| Gulfstream Natural Gas PipelineMobile County → Florida | United States | Operating | 1,199 km | 13.4 bcm/y | 1 | 2002 |
| Gulfstream Natural Gas Pipeline | United States | Under construction | 6.4 km | 0.8 bcm/y | 1 | 2022 |
| Gunma Trunk Line Gas PipelineAnnaka → Takasaki | Japan | Operating | 15 km | Not reported | 1 | 2010 |
| Gurdaspur-Jammu Gas PipelineGurdaspur → Jammu | India | Under construction | 175 km | 0.73 bcm/y | 1 | 2026 |
| Gurguri-Kohat Gas PipelineGurguri → Kohat | Pakistan | Operating | 78 km | Not reported | 1 | — |
| Gustorzyn-Wronów Gas PipelineGustorzyn → Wronów | Poland | Operating | 308 km | Not reported | 1 | 2023 |
| Gänserndorf-Simmering Gas PipelineGänserndorf → Simmering | Austria | Operating | 120 km | Not reported | 1 | 2011 |
| Gördes-Gölhisar Gas Pipeline | Türkiye | Operating | 140 km | Not reported | 1 | 2018 |
| H2Med PipelineBarcelona → Marseille | Spain, France | Proposed | 450 km | 2.72 bcm/y | 1 | 2029 |
| HQ2-Tando Adam Gas PipelineNawabshah → Tando Adam | Pakistan | Operating | 81 km | 0.87 bcm/y | 1 | — |
| Habiganj-Ashuganj Gas PipelineHabiganj → Ashuganj | Bangladesh | Operating | 58 km | 0.87 bcm/y | 1 | 2005 |
| Habshan-Maqta-Taweelah Gas PipelineAbu Dhabi → Abu Dhabi | United Arab Emirates | Operating | 43 km | 0.1 bcm/y | 1 | 2013 |
| Habshan-Maqta-Taweelah Gas PipelineTaweelah → Abu Dhabi | United Arab Emirates | Operating | 10 km | 0.1 bcm/y | 1 | 2014 |
| Habshan-Maqta-Taweelah Gas PipelineAbu Dhabi → Abu Dhabi | United Arab Emirates | Operating | 122 km | 0.1 bcm/y | 1 | 2014 |
| Habshan-Maqta-Taweelah Gas PipelineAbu Dhabi → Abu Dhabi | United Arab Emirates | Operating | 122 km | 0.1 bcm/y | 1 | 2014 |
| Hainan Gas Pipeline NetworkYangpu → Chengmai | China | Operating | 113 km | 3.8 bcm/y | 1 | 2016 |
| Hainan Gas Pipeline NetworkChengmai → Wencheng | China | Cancelled | 293 km | 4.65 bcm/y | 1 | 2021 |
| Hainan Gas Pipeline NetworkYachou District → Wencheng | China | Operating | 637 km | 2.6 bcm/y | 1 | 1996 |
| Hainan Gas Pipeline NetworkWencheng → Yazhou District | China | Operating | 289 km | 1.5 bcm/y | 1 | 2021 |
| Hainan Gas Pipeline NetworkDanzhou → Suicheng Town, Suixi County | China | Proposed | 297 km | Not reported | 1 | — |
| Hainan Gas Pipeline NetworkHainan → Xvwen | China | Cancelled | 265 km | 10 bcm/y | 1 | — |
| Hajduszoboszlo–Nemesbikk Gas PipelineHajduszoboszlo → Nemesbikk | Hungary | Operating | 58 km | Not reported | 1 | — |
| Hajduszoboszlo–Varosfoeld Gas PipelineHajduszoboszlo → Varosfoeld | Hungary | Operating | 155 km | Not reported | 1 | — |
| Hajigabul-Gazakh-Saguramo PipelineHajigabul → Saguramo | Azerbaijan, Georgia | Operating | 478 km | 8.7 bcm/y | 1 | 2006 |
| Hajigabul-Shirvanovka-Mozdok PipelineHajigabul (Kazi Magomed) → Mozdok | Russia, Azerbaijan | Operating | 680 km | 10 bcm/y | 1 | 1982 |
| Hajiqabul–Astara–Abadan Gas PipelineGazimammad → Abadan | Azerbaijan, Iran | Operating | 1,475 km | 10 bcm/y | 1 | 1970 |
| Hakata Trunk LineHigashihama → Katakasu | Japan | Operating | 3.8 km | Not reported | 1 | 1987 |
| Hakkari Gas Pipeline | Türkiye | Operating | 204 km | Not reported | 1 | 2019 |
| Hakodate Trunk lineHakodate Minato Plant → Hakodate governor station (函館 GS) and the Hakodate east governor station (函館東 GS) | Japan | Operating | 8.8 km | Not reported | 1 | 2007 |
| Halmstad-Gilaved Gas PipelineHalmstad → Gislaved | Sweden | Operating | 81 km | Not reported | 1 | — |
| Halmstad–Gilaved Gas PipelineHalmstad → Hylte | Sweden | Operating | 41 km | Not reported | 1 | — |
| Haltenpipe Gas PipelineNorwegian Sea → Tjeldbergodden | Norway | Operating | 250 km | 1.72 bcm/y | 1 | 1996 |
| Haoudh El Hamra-Arzew Gas PipelineHaoudh El Hamra → Arzew | Algeria | Operating | 795 km | Not reported | 1 | — |
| Haradh Khuff-Hawiyah 2 Gas PipelineNorth Haradh Kuff Gas → Hawiyah Gas Plant | Saudi Arabia | Operating | 43 km | Not reported | 1 | — |
| Haradh Khuff-Hawiyah 3 Gas PipelineNorth Haradh Kuff Gas → Hawiyah Gas Plant | Saudi Arabia | Operating | 43 km | Not reported | 1 | — |
| Haradh Khuff-Hawiyah Gas PipelineNorth Haradh Kuff Gas → Hawiyah Gas Plant | Saudi Arabia | Operating | 43 km | Not reported | 1 | — |
| Haradh-3-Uthmaniya Gas PipelineEastern Province → Uthmaniyah Gas Plant | Saudi Arabia | Operating | 124 km | Not reported | 1 | 2006 |
| Haradh-Uthmaniya Gas PipelineHaradh Gas Plant → Uthmaniyah Gas Plant | Saudi Arabia | Operating | 140 km | Not reported | 1 | 2006 |
| Harbin-Shenyang Gas PipelineHarbin → Liaoning | China | Operating | 555 km | Not reported | 1 | 2015 |
| Haridwar-Rishikesh-Dehradun Gas PipelineHaridwar → Uttarakhand | India | Operating | 50 km | Not reported | 1 | 2023 |
| Haripur-Mansehra Gas PipelineHaripur → Mansehra | Pakistan | Operating | 71 km | Not reported | 1 | — |
| Haripur-NGFF Gas Pipeline | Bangladesh | Operating | 43 km | 0.63 bcm/y | 1 | 1961 |
| Hasbah-Wasit Gas PipelinesHasbah Gas Field → Wasit Gas Plant | Saudi Arabia | Operating | 160 km | 0.01 bcm/y | 1 | 2017 |
| Hasbah-Wasit Gas PipelinesHasbah Gas Field → Wasit Gas Plant | Saudi Arabia | Operating | 160 km | 0.01 bcm/y | 1 | 2017 |
| Hassan-Sui Gas PipelineHassan → Sui | Pakistan | Operating | 58 km | 0.31 bcm/y | 1 | — |
| Hassel-Westen Gas PipelineHassel → Westen | Germany | Proposed | 8 km | Not reported | 1 | 2032 |
| Hassi R'Mel-Arzew Gas PipelineHassi R'Mel → Arzew | Algeria | Operating | 509 km | 6.67 bcm/y | 1 | 1961 |
| Hassi R'Mel-Arzew Gas PipelineHassi R'Mel → Oran | Algeria | Operating | 507 km | 40.6 bcm/y | 1 | 1976 |
| Hassi R'Mel-Arzew Gas PipelineHassi R'Mel → Oran | Algeria | Operating | 511 km | 40.6 bcm/y | 1 | 1982 |
| Hassi R'Mel-Arzew Gas PipelineHassi R'Mel → Oran | Algeria | Operating | 511 km | 40.6 bcm/y | 1 | 1989 |
| Hassi R'Mel-Arzew Gas PipelineHassi R'Mel → Oran | Algeria | Operating | 513 km | 11.3 bcm/y | 1 | 1987 |
| Hassi R'Mel-El Aricha Gas PipelineHassi R'Mel → Tlemcen | Algeria | Operating | 521 km | 11.5 bcm/y | 1 | — |
| Hassi R'Mel-Isser Gas PipelineHassi R'Mel → Isser | Algeria | Operating | 436 km | 11.3 bcm/y | 1 | 1981 |
| Hassi R'Mel-Skikda Gas PipelineHassi R'Mel → Skikda | Algeria | Operating | 575 km | 20.5 bcm/y | 1 | 1971 |
| Hassi R'Mel-Skikda II Gas PipelineHassi R'Mel → Skikda | Algeria | Operating | 575 km | 20.5 bcm/y | 1 | 2001 |
| Hassi R'Mel-Skikda-El Kala Gas PipelineHassi R'Mel → Mechtatine | Algeria | Operating | 432 km | 9 bcm/y | 1 | 2013 |
| Hatikumrul-Bheramara Gas PipelineHatikumrul → Bheramara | Bangladesh | Operating | 84 km | 4.09 bcm/y | 1 | 2016 |
| Hatikumrul-Bogra Gas PipelineHatikumrul → Bogra | Bangladesh | Operating | 54 km | 2.56 bcm/y | 1 | 2006 |
| Hawiyah-UBTG-1-km0 Gas PipelineHawiyah Gas Plant → Uthmaniyah Gas Plant | Saudi Arabia | Operating | 56 km | Not reported | 1 | — |
| Hawiyah-Uthmniyah Gas PipelineHawiyah Gas Plant → Uthmaniyah Gas Plant | Saudi Arabia | Operating | 47 km | Not reported | 1 | — |
| Haynesville Global Access PipelineHaynesville → Gillis | United States | Cancelled | 258 km | 20.4 bcm/y | 1 | 2023 |
| Hazaribagh-Ranchi Gas PipelineHazaribagh → Ranchi | India | Under construction | 71 km | 0.38 bcm/y | 1 | 2026 |
| Hazira-Ankleshwar Gas PipelineHazira → Ankleshwar | India | Operating | 73 km | 1.85 bcm/y | 1 | 1999 |
| Hazira-Vijaipur-Jagdishpur (HVJ) Gas PipelineHazira → Jagdishpur | India | Operating | 2,887 km | 39.1 bcm/y | 1 | 1987 |
| Head Balloki-MP 59.91 Gas PipelineHead Balloki → Sheikhupura | Pakistan | Operating | 52 km | Not reported | 1 | — |
| Hebei Gas Pipeline NetworkCaofeidian LNG Terminal → Hebei | China | Operating | 127 km | 14.7 bcm/y | 1 | 2013 |
| Hebei Gas Pipeline NetworkGuantao Distribution Station of Ordos-Anping-Cangzhou Gas Pipeline, Guantao County → Economic and Technological Development Zone | China | Operating | 108 km | 5 bcm/y | 1 | 2021 |
| Hebei Gas Pipeline NetworkXiaoweihe Distribution Station, Wen'an County → Hebei | China | Shelved | 46 km | 1 bcm/y | 1 | — |
| Hebei Gas Pipeline NetworkHebei → Hebei | China | Proposed | 99 km | 5.1 bcm/y | 1 | — |
| Hebei Gas Pipeline NetworkCangzhou → Shandong | China | Operating | 214 km | 1.05 bcm/y | 1 | 2002 |
| Hebei Gas Pipeline NetworkHebei → Yongqing | China | Operating | 82 km | 6.97 bcm/y | 1 | 2022 |
| Hebei Gas Pipeline NetworkHebei → Hebei | China | Under construction | 100 km | 3.86 bcm/y | 1 | — |
| Hebei Gas Pipeline NetworkHebei → Fengnan | China | Proposed | 85 km | 0.87 bcm/y | 1 | — |
| Hebei Gas Pipeline NetworkYing County → Dongshanyuan | China | Operating | 254 km | 0.94 bcm/y | 1 | 2011 |
| Hebei Gas Pipeline NetworkZhuozhou → Handan | China | Operating | 361 km | 1.5 bcm/y | 1 | 2002 |
| Hebei Gas Pipeline NetworkZhuozhou → Baoding | China | Operating | 102 km | 15.1 bcm/y | 1 | 2022 |
| Hebei Gas Pipeline NetworkXushui District → Hebei | China | Proposed | 26 km | 0.8 bcm/y | 1 | — |
| Hebei Gas Pipeline NetworkGaocheng District → Wangdu County | China | Operating | 84 km | 0.8 bcm/y | 1 | 2023 |
| Hebei Gas Pipeline NetworkAnping Distribution Station, Anping County → Cangzhou | China | Operating | 352 km | 1.58 bcm/y | 1 | 2022 |
| Hebei Gas Pipeline NetworkGaoyang Sub-transmission Station of Shaan-Jing Gas Pipeline 3, Gaoyang County → Lixian | China | Operating | 49 km | 0.8 bcm/y | 1 | 2022 |
| Hebei Gas Pipeline NetworkQingyuan District → Cangzhou | China | Proposed | 70 km | 1.4 bcm/y | 1 | — |
| Hebei Gas Pipeline Networkthe Cangxian terminal station of Ordos-Anping-Cangzhou Gas Pipeline, Cang County → Hebei | China | Proposed | 244 km | 5 bcm/y | 1 | — |
| Hebei Gas Pipeline NetworkAnping County → Hengshui | China | Operating | 135 km | 0.31 bcm/y | 1 | 2015 |
| Hebei Gas Pipeline NetworkShenzhou City → Shijiazhuang | China | Operating | 133 km | 0.5 bcm/y | 1 | 2018 |
| Hebei Gas Pipeline NetworkXinji City → Hengshui | China | Operating | 23 km | 0.23 bcm/y | 1 | 2019 |
| Hebei Gas Pipeline NetworkRaoyang County → Cangzhou | China | Proposed | 101 km | 0.49 bcm/y | 1 | — |
| Hebei Gas Pipeline NetworkGaocheng District → Shijiazhuang | China | Operating | 39 km | Not reported | 1 | — |
| Hebei Gas Pipeline NetworkHebei → Shijiazhuang | China | Operating | 43 km | Not reported | 1 | — |
| Hebei Gas Pipeline NetworkGaocheng Distribution Station, Gaocheng District → Shijiazhuang | China | Operating | 45 km | 0.4 bcm/y | 1 | — |
| Hebei Gas Pipeline NetworkLuquan Distribution Station, Luquan District → Shijiazhuang | China | Under construction | 35 km | 3.3 bcm/y | 1 | — |
| Hebei Gas pipeline NetworkCaofeidian Xintian LNG Terminal → Yongqing | China | Operating | 288 km | 11.2 bcm/y | 1 | 2023 |
| Hebei Gas pipeline NetworkBazhou City → Baoding City Gate Station | China | Operating | 95 km | 0.4 bcm/y | 1 | 2019 |
| Hebei-Nanjing Connecting Gas PipelineQingshan Town → Anping | China | Operating | 886 km | 9 bcm/y | 1 | 2005 |
| Hebei–Nanjing Connecting Gas PipelineJiangdu → Rudong | China | Operating | 284 km | 1.35 bcm/y | 1 | 2010 |
| Hebei–Nanjing Connecting Gas PipelineJiangsu → Tangdian Town, Xinyi City | China | Operating | 142 km | 0.44 bcm/y | 1 | 2006 |
| Hebei–Nanjing Connecting Gas PipelineTianmiao Village, Zhaodun Town，Pizhou City → Damiao Industrial Park, Xuzhou Economic and Technological Development Zone | China | Operating | 55 km | 1.18 bcm/y | 1 | 2007 |
| Heera-Uran Trunk Line (HUT)Offshore India → Uran | India | Operating | 80 km | 5.84 bcm/y | 1 | 1990 |
| Heidenau-Quarnstedt Gas PipelineHeidenau → Quarnstedt | Germany | Operating | 70 km | Not reported | 1 | — |
| Heidrun Gas Export PipelineNorth Sea → Åsgard Transport | Norway | Operating | 37 km | 4.02 bcm/y | 1 | 2001 |
| Heilongjiang Natural Gas Pipeline NetworkHonggang voltage regulating station → Aungangxi Terminal Station | China | Operating | 156 km | 0.82 bcm/y | 1 | 2008 |
| Heilongjiang Natural Gas Pipeline NetworkHeilongjiang → Heilongjiang | China | Cancelled | 306 km | Not reported | 1 | — |
| Heilongjiang Natural Gas Pipeline NetworkHeilongjiang → Heilongjiang | China | Cancelled | 271 km | Not reported | 1 | — |
| 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 NetworkHeihe Gas Transmission Station → Ergonghe Industrial Park | China | Operating | 11 km | 0.04 bcm/y | 1 | 2020 |
| Heilongjiang Natural Gas Pipeline NetworkTiedong Pressure Regulating Station → boundary between Zhaodong and Lanxi | China | Proposed | 13 km | 0.07 bcm/y | 1 | — |
| Heilongjiang Natural Gas Pipeline NetworkDaqing-Qiqihar Gas Pipeline No. 3 Valve Room → Delger Industrial Park | China | Operating | 42 km | 0.08 bcm/y | 1 | 2021 |
| Heilongjiang Natural Gas Pipeline NetworkZhaodong → Lanxi | China | Proposed | 43 km | 0.16 bcm/y | 1 | — |
| Helsinki–Siuntio Gas PipelineHelsinki → Siuntio | Finland | Operating | 41 km | Not reported | 1 | — |
| Henan Gas Pipeline NetworkMotou Town → Fangzhuang Town | China | Operating | 89 km | 0.48 bcm/y | 1 | 2017 |
| Henan Gas Pipeline NetworkHenan → Henan | China | Under construction | 159 km | 1.02 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkShihe District, Ziyang City → Gushi county | 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 NetworkZhongyuan Oilfield Gas Storage Cluster(中原油田储气库群) → Xuedian | China | Operating | 248 km | 2 bcm/y | 1 | 2016 |
| Henan Gas Pipeline NetworkSuiyang → Yongcheng | China | Operating | 123 km | Not reported | 1 | 2017 |
| Henan Gas Pipeline NetworkYulin-Jinan Gas Pipeline → Gushi | 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 NetworkYichuan → Xuedian | 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 NetworkZhenping → Zhanglou Town, Sihou village. | China | Operating | 35 km | 1.5 bcm/y | 1 | 2021 |
| Henan Gas Pipeline NetworkQueshan County → Xinyang | China | Proposed | 118 km | 2 bcm/y | 1 | — |
| Henan Gas Pipeline NetworkLuohe → Huaiyang | China | Operating | 104 km | 2 bcm/y | 1 | 2023 |
| Henan Gas Pipeline NetworkZhecheng County → Huaiyang District | China | Operating | 95 km | 2 bcm/y | 1 | 2025 |
| Henan Gas Pipeline NetworkAnyang → Luoyang | China | Operating | 308 km | 1.89 bcm/y | 1 | 2012 |
| Henan Gas Pipeline NetworkYima → Shifo Town | China | Operating | 196 km | 0.6 bcm/y | 1 | 2001 |
| Henan Gas Pipeline NetworkPuyang County → Taiqian County | China | Operating | 62 km | 0.9 bcm/y | 1 | 2020 |
| Henan Gas Pipeline NetworkNanle → Xiangfu District | China | Operating | 191 km | 3 bcm/y | 1 | 2016 |
| Henan Gas Pipeline NetworkHuaiyang → Wuhan | China | Operating | 475 km | 1.5 bcm/y | 1 | 2006 |
| Henan Gas Pipeline NetworkLiutun → Hebei | China | Retired | 337 km | 0.4 bcm/y | 1 | 1986 |
| Henan Gas Pipeline NetworkZhuxian Town → Yanling County | China | Proposed | 101 km | 0.48 bcm/y | 1 | — |
| Hermanowice-Jaroslaw PipelineHermanowice → Jarosław | Poland | Proposed | 39 km | Not reported | 1 | 2029 |
| Hermanowice-Strachocina PipelineHermanowice → Strachocina | Poland | Operating | 72 km | Not reported | 1 | 2020 |
| Hewett Pipeline SystemHewett gas field → Bacton | United Kingdom | Retired | 185 km | 9.2 bcm/y | 1 | 1972 |
| High Island Offshore Gas Pipeline SystemGulf of Mexico → Gulf of Mexico, UTOS Gas Pipeline | 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 MacedoniaTrikala → Ptolemaida | Greece | Under construction | 157 km | Not reported | 1 | 2025 |
| Himeji Gas PipelineHimeji → Himeji | Japan | Operating | 4 km | Not reported | 1 | 2020 |
| Himeji-Okayama Gas PipelineHimeji → Okayama | Japan | Operating | 85 km | Not reported | 1 | 2014 |
| Hoeningen-Oberaußem Gas PipelineHoeningen → Oberaußem | 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 PipelineSaihan Distrcit → Chayou Front Banner | China | Operating | 212 km | 2 bcm/y | 1 | 2018 |
| Holowczyce–Pulawy Gas PipelineWronow → WysokojePL | Poland | Operating | 133 km | Not reported | 1 | — |
| Honjo LineHagiwaramachi → Minami Kumamoto | Japan | Operating | 1.7 km | Not reported | 1 | 2000 |
| Horgos-Gospodinci Gas PipelineHorgos → Gospodinci | Serbia | Operating | 87 km | Not reported | 1 | — |
| Horizon Gas PipelineJoliet → McHenry County | United States | Operating | 117 km | 3.88 bcm/y | 1 | 2002 |
| Hoscht-St.Magrethen Gas PipelineHoscht → St.Magrethen | Austria, Switzerland | Operating | 6 km | Not reported | 1 | — |
| Hosokusa PipelineOhamishirasato → Sanmu | Japan | Operating | 17 km | Not reported | 1 | 1962 |
| Hospozin–Dobré Pole Gas PipelineKourim → Hospozin | Czechia | Operating | 66 km | Not reported | 1 | — |
| Hospozin–Rozvadov Gas PipelineHospozin → Rozvadov | Czechia | Operating | 143 km | Not reported | 1 | — |
| Hostim–Malesovice Gas PipelineHostim → Malesovice | Czechia | Operating | 45 km | Not reported | 1 | — |
| Houston Gas Pipeline (HPL) SystemMultiple → Multiple | United States | Operating | 6,116 km | 54.2 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkEnshi → Xianfeng County | China | Under construction | 142 km | 0.2 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHuanggang → Chengui Town | 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 NetworkLiuliping Town → Zhuxi County | China | Operating | 180 km | 0.3 bcm/y | 1 | 2017 |
| Hubei Gas Pipeline NetworkHuangpi District → Yichang | 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 NetworkXiaogan → Hubei | China | Shelved | 110 km | Not reported | 1 | — |
| Hubei Gas Pipeline NetworkXiaonan District → Hubei | China | Operating | 181 km | 0.4 bcm/y | 1 | 2013 |
| Hubei Gas Pipeline NetworkChibi → Hubei | China | Under construction | 138 km | 0.18 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkYidu → Songzi | China | Proposed | 53 km | 0.6 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkXunyang → Hubei | China | Under construction | 16 km | 0.1 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkJingshan → Hubei | China | Proposed | 135 km | 0.25 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkHuanggang → Hubei | China | Under construction | 269 km | 0.62 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkXishui → Hubei | China | Under construction | 161 km | Not reported | 1 | — |
| Hubei Gas Pipeline NetworkYichang → Yuyangguan Town | China | Operating | 62 km | 0.07 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkXiaochang → Hubei | China | Operating | 29 km | 0.1 bcm/y | 1 | — |
| Hubei Gas Pipeline NetworkYiling → Hubei | China | Operating | 62 km | 0.18 bcm/y | 1 | 2023 |
| Huelva-Córdoba Gas PipelineHuelva → Cordoba | Spain | Operating | 494 km | Not reported | 1 | 1988 |
| Hugh Brinson Gas PipelineOdessa → Fort Worth | United States | Under construction | 711 km | 37.8 bcm/y | 1 | 2026 |
| Hunan Gas Pipeline NetworkHunan → Jinshi | China | Operating | 246 km | 0.44 bcm/y | 1 | 2015 |
| Hunan Gas Pipeline NetworkChangsha → Changde | China | Operating | 188 km | 0.64 bcm/y | 1 | 2006 |
| Hunan Gas Pipeline NetworkHunan → Liuyang | China | Operating | 62 km | 0.26 bcm/y | 1 | 2017 |
| Hunan Gas Pipeline NetworkHunan → Yiyang | China | Operating | 79 km | 1.16 bcm/y | 1 | 2020 |
| Hunan Gas Pipeline NetworkFenghuang → Xiang-Qian border | China | Cancelled | 37 km | 0.95 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHuayuan County → Huaihua | China | Operating | 171 km | 0.95 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkHuayuan County → Yongding District | China | Operating | 132 km | 0.22 bcm/y | 1 | 2022 |
| Hunan Gas Pipeline NetworkLongshan → Huanyuan | China | Operating | 112 km | 0.95 bcm/y | 1 | 2020 |
| Hunan Gas Pipeline NetworkMayang → Chenxi | China | Operating | 50 km | 0.13 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkGuiyang → Linwu | China | Operating | 60 km | 0.42 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkGuiyang → Zixing | China | Operating | 83 km | 0.9 bcm/y | 1 | 2021 |
| Hunan Gas Pipeline NetworkHengdong → Dapu | China | Operating | 20 km | 0.16 bcm/y | 1 | 2022 |
| Hunan Gas Pipeline NetworkHengyang → Hunan | China | Operating | 161 km | 0.41 bcm/y | 1 | 2022 |
| Hunan Gas Pipeline NetworkShentan Town, Liling → You County | China | Under construction | 65 km | Not reported | 1 | — |
| Hunan Gas Pipeline NetworkHuaihua → Hongjiang | China | Proposed | 93 km | Not reported | 1 | — |
| Hunan Gas Pipeline NetworkHuarong → Anxiang | China | Operating | 63 km | 0.6 bcm/y | 1 | 2017 |
| Hunan Gas Pipeline NetworkLianyuan → Xinhua | China | Operating | 63 km | 0.38 bcm/y | 1 | 2017 |
| Hunan Gas Pipeline NetworkMiluo → Pingjiang | China | Operating | 50 km | 0.15 bcm/y | 1 | 2019 |
| Hunan Gas Pipeline NetworkMiluo → Quyuan | China | Operating | 48 km | 0.19 bcm/y | 1 | 2019 |
| Hunan Gas Pipeline NetworkShaodong → Shuangfeng | China | Operating | 64 km | 0.16 bcm/y | 1 | 2022 |
| Hunan Gas Pipeline NetworkHunan → Xinning | China | Operating | 207 km | 0.45 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkAnren → Rucheng | China | Proposed | 135 km | 0.2 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkXiangtan → Hengyang | China | Operating | 138 km | 0.5 bcm/y | 1 | 2007 |
| Hunan Gas Pipeline NetworkHunan → Liling | China | Operating | 67 km | 0.8 bcm/y | 1 | 2006 |
| Hunan Gas Pipeline NetworkXiangtan → Shaoyang | China | Operating | 213 km | 0.48 bcm/y | 1 | 2012 |
| Hunan Gas Pipeline NetworkYiyang → Taojiang | China | Operating | 35 km | 0.05 bcm/y | 1 | 2010 |
| Hunan Gas Pipeline NetworkYongzhou → Shaoyang | China | Operating | 111 km | 0.37 bcm/y | 1 | 2025 |
| Hunan Gas Pipeline NetworkYongzhou → Dao County | China | Proposed | 98 km | 0.37 bcm/y | 1 | — |
| Hunan Gas Pipeline NetworkJianjun village, Yunxi District → Linxiang | China | Operating | 36 km | 0.35 bcm/y | 1 | 2021 |
| Hunan Gas Pipeline NetworkZhuzhou → Ningxiang | China | Proposed | 168 km | 1 bcm/y | 1 | — |
| Hungary-Austria Interconnector Gas PipelineBaumgarten an der March → Deutsch-Jahrndorf | Austria | Operating | 45 km | 4.26 bcm/y | 1 | 1996 |
| Hungary-Austria Interconnector Gas PipelineMosonmagyarovar → Budapest | Austria, Hungary | Operating | 184 km | 4.26 bcm/y | 1 | 1996 |
| Hungary-Slovenia-Italy Interconnector Gas PipelineNagykanizsa → Tornyiszentmiklós | Hungary | Cancelled | 41 km | 0.21 bcm/y | 1 | 2024 |
| Hungary-Slovenia-Italy Interconnector Gas PipelineŠempeter → Vodice | Slovenia | Shelved | 101 km | Not reported | 1 | 2026 |
| Hungary-Slovenia-Italy Interconnector Gas PipelineNagykanizsa → Kozármisleny | Hungary | Cancelled | 150 km | 2.1 bcm/y | 1 | 2025 |
| Hurghada–Safaga Gas PipelineHurghada → Safaga | Egypt | Operating | 39 km | Not reported | 1 | 2021 |
| Hust–Satu Mare Gas PipelineHust → Satu Mare | Romania, Ukraine | Operating | 21 km | 2 bcm/y | 1 | 1999 |
| IGAT 1 Gas PipelineBid Boland Gas Refinery → Astara | Iran, Azerbaijan | Operating | 1,103 km | 17 bcm/y | 1 | 1970 |
| IGAT 10 Gas PipelineAsaluyeh → Isfahan | Iran | Operating | 632 km | 25.6 bcm/y | 1 | 2014 |
| IGAT 11 Gas PipelineAsaluyeh → Yazd | Iran | Shelved | 1,621 km | 40.1 bcm/y | 1 | 2026 |
| IGAT 2 Gas PipelineKangan Refinery → Qazvin | Iran | Operating | 1,039 km | 32.9 bcm/y | 1 | 1981 |
| IGAT 3 Gas PipelineAsaluyeh → Rasht | Iran | Operating | 1,267 km | 32.9 bcm/y | 1 | — |
| IGAT 4 Gas PipelineAsaluyeh → Saveh | Iran | Operating | 1,145 km | 40.1 bcm/y | 1 | 2004 |
| IGAT 5 Gas PipelineAsaluyeh → Aghajari oil field | Iran | Operating | 540 km | 34.7 bcm/y | 1 | 2008 |
| IGAT 6 Gas PipelineAsaluyeh → Dehgolan | Iran | Operating | 1,082 km | 39.7 bcm/y | 1 | 2018 |
| IGAT 7 Gas PipelineAsaluyeh → Iranshahr | Iran | Operating | 907 km | 40.1 bcm/y | 1 | 2010 |
| IGAT 7 Gas PipelineIranshahr → Chabahar | Iran | Operating | 290 km | Not reported | 1 | 2024 |
| IGAT 8 Gas PipelineAsaluyeh → Qom | Iran | Operating | 1,050 km | 39.7 bcm/y | 1 | — |
| IGAT 9 Gas PipelineAsaluyeh → Bazargan | Iran | Under construction | 1,863 km | 39.7 bcm/y | 1 | — |
| Iacanga-Uberaba Gas PipelineIacanga → Uberaba | Brazil | Proposed | 260 km | 2.19 bcm/y | 1 | — |
| Ibadan–Jebba Gas PipelineIbadan → Jebba | Nigeria | Proposed | 510 km | Not reported | 1 | — |
| Ibaraki Main Gas PipelineHitachi LNG terminal → Kamisu | Japan | Operating | 92 km | Not reported | 1 | 2021 |
| Ibaraki-Tochigi Gas PipelineHitachi → Moka | Japan | Operating | 81 km | Not reported | 1 | 2016 |
| Ichthys Gas PipelineIchthys Field → Darwin | Australia | Operating | 889 km | 16.4 bcm/y | 1 | 2018 |
| Idd Al Shargi North Dome-Wakrah Station Gas PipelineIdd-Al-Shargi North Dome (ISND) offshore platform → Wakrah Station | Qatar | Operating | 89 km | Not reported | 1 | — |
| Idku-Abu Hummus Gas Pipeline IEdku → Beheira | Egypt | Operating | 27 km | Not reported | 1 | — |
| Idku-Abu Hummus Gas Pipeline IIBeheira → Beheira | Egypt | Operating | 30 km | Not reported | 1 | 2022 |
| Igrim-Serov-Nizhny Tagil Gas PipelineIgrim → Nizhny Tagil | Russia | Operating | 525 km | 10 bcm/y | 1 | 1966 |
| Ihtiman-Gorni Bogrov Gas PipelineIhtiman → Gorni Bogrov | Bulgaria | Proposed | 50 km | Not reported | 1 | 2028 |
| Ihtiman–Dubnitza Gas PipelineIhtiman → Dubnitza | Bulgaria | Operating | 64 km | Not reported | 1 | — |
| Ikhala-Sortavala Gas PipelineIkhala → Sortavala | Russia | Proposed | 46 km | 0.07 bcm/y | 1 | — |
| Ilichevsk-Yerevan Gas PipelineSarur → Yerevan | Armenia | Operating | 87 km | Not reported | 1 | 1984 |
| Ilijan Gas PipelineIlijan → Tabangao | Philippines | Operating | 15 km | 6.64 bcm/y | 1 | 2002 |
| Imatra–Mantsala Gas PipelineLappeenranta → Mantsala | Finland | Operating | 207 km | Not reported | 1 | — |
| In Salah Gas PipelineIn Salah → Haoudh El Hamra | Algeria | Operating | 520 km | 9 bcm/y | 1 | 2003 |
| Independence Trail Natural Gas PipelineWest Delta Block 68 → Mississippi Canyon Block 920 | 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 PipelineIngolstadt → Günzburg | Germany | Operating | 79 km | Not reported | 1 | — |
| Inkoo–Mantsala Gas PipelineInkoo → Mantsala | Finland | Operating | 108 km | Not reported | 1 | — |
| Inner Mongolia Gas Pipeline NetworkAngsu Town,Otuoke Front Banner → Otuoke Front Banner Industrial Park | China | Under construction | 53 km | 1.6 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkJining District → Huade County | China | Proposed | 281 km | 1 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkTaoli Town, Wushen Banner → Qipanjing Industrial Park, Etuoke Banner | 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 NetworkJingbian County → Linhe District | China | Operating | 426 km | 0.4 bcm/y | 1 | 2008 |
| Inner Mongolia Gas Pipeline NetworkChayou Rear Banner → Siziwang Banner | China | Proposed | 151 km | 0.4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkDaniudi Gas Field → Dongsheng | China | Operating | 108 km | 1 bcm/y | 1 | 2019 |
| Inner Mongolia Gas Pipeline NetworkDalu Town, Jungar → Shengle Town, Horinger | China | Operating | 166 km | 0.48 bcm/y | 1 | 2022 |
| Inner Mongolia Gas Pipeline NetworkDaniudi Village, Hujierte Township, Wushen Banner → Hangjin Banner | China | Operating | 138 km | 0.2 bcm/y | 1 | 2003 |
| Inner Mongolia Gas Pipeline NetworkDongsheng Gas Field, Dongsheng District → Hangjin Banner | China | Operating | 62 km | 0.1 bcm/y | 1 | 2012 |
| Inner Mongolia Gas Pipeline NetworkCharisu Town,Horqin Left Rear Banner → Yilongyong Town, Naiman Banner | China | Under construction | 262 km | 1.21 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkGuyang → Bayan Obo(Baiyun Ebo) | China | Under construction | 126 km | 0.5 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkHangjinhou Banner → Wulatehou Banner | China | Proposed | 50 km | 0.4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkHexigten Banner → Xilinhot City | China | Shelved | 130 km | 0.2 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkMaladisumu, Otog Front Banner → Shanghai Miaozhen, Otog Front Banner, | China | Operating | 167 km | 0.9 bcm/y | 1 | 2011 |
| Inner Mongolia Gas Pipeline NetworkAlxa Left Banner → Ningxia | China | Operating | 25 km | 0.13 bcm/y | 1 | 2009 |
| Inner Mongolia Gas Pipeline NetworkShuangsheng Township, Kezuohou Banner → Fu'antun Village，Horqin District | China | Operating | 183 km | 0.5 bcm/y | 1 | 2015 |
| Inner Mongolia Gas Pipeline NetworkSiziwang Banner → Wuchuan | China | Proposed | 60 km | 0.4 bcm/y | 1 | 2026 |
| Inner Mongolia Gas Pipeline NetworkErhetu Gacha, Sumitu, Ortoke Banner → Ulan Town, Ortoke Banner | China | Shelved | 70 km | 0.5 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkHorqin District → Hexigten Banner | China | Shelved | 450 km | 2 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkWuyuan → Urad Middle Banner | China | Proposed | 70 km | 0.25 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkXianggen Dalai Sumu, Azuo Banner → Bayanhot Town, Alxa Left Banner | China | Operating | 60 km | 0.1 bcm/y | 1 | 2010 |
| Inner Mongolia Gas Pipeline NetworkJiuyuan District → Linhe District | 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 → Junggar | China | Operating | 370 km | 0.47 bcm/y | 1 | 2012 |
| Inner Mongolia Gas Pipeline NetworkEconomic and Technological Development Zone → Export Aluminum Industrial Park | China | Operating | 308 km | 0.4 bcm/y | 1 | 2018 |
| Inner Mongolia Gas Pipeline NetworkWulantaolegai, Uxin → Saihan District | China | Operating | 518 km | 6 bcm/y | 1 | 2011 |
| Inner Mongolia Gas Pipeline NetworkNalinhe Town, Uxin → Inner Mongolia | China | Operating | 506 km | 1.3 bcm/y | 1 | 2003 |
| Inner Mongolia Gas Pipeline NetworkLinhe District → Hanggin Banner | China | Operating | 28 km | Not reported | 1 | 2013 |
| Inner Mongolia Gas Pipeline NetworkLubei Sub-transmission Station，Zhalut Banner → Economic Development Zone | China | Proposed | 250 km | 1 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkYuanbaoshan District Chaoyang → Songshan | China | Operating | 30 km | 0.34 bcm/y | 1 | 2022 |
| Inner Mongolia Gas Pipeline NetworkOtog Banner → Hainan | China | Operating | 18 km | 0.2 bcm/y | 1 | 2022 |
| Inner Mongolia Gas Pipeline NetworkZhuozi → Liangcheng | China | Proposed | 49 km | 0.4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkUxin Banner → Uxin Banner | China | Proposed | 13 km | 4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkDalat Banner → Dalat Banner | China | Proposed | 18 km | 4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkSaihan → Saihan | China | Shelved | 11 km | 4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkJining → Inner Mongolia | China | Shelved | 15 km | 4 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkDongsheng → Dongsheng | China | Proposed | 0.6 km | 1 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkOtog Banner → Otog Banner | China | Under construction | 2.5 km | 0.43 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkOtog Front Banner → Otog Front Banner | China | Proposed | 4.3 km | 0.45 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkOtog Front Banner → Otog Banner Shanghai Temple | China | Proposed | 21 km | 0.45 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkOtog Front Banner → Otog Front Banner | China | Proposed | 29 km | 0.65 bcm/y | 1 | — |
| Inner Mongolia Gas Pipeline NetworkHuade County → Duolun County | China | Proposed | 230 km | 0.4 bcm/y | 1 | — |
| Intensity Gas PipelineWatford City → Washburn | United States | Proposed | 219 km | 11.2 bcm/y | 1 | 2029 |
| Intensity Gas PipelineWashburn → Casselton | United States | Proposed | 335 km | 4.39 bcm/y | 1 | 2029 |
| Inter-Caribbean Natural Gas PipelineScarborough → Pointe-a-Pitre | Trinidad and Tobago, Barbados, Martinique, Guadeloupe | Cancelled | 959 km | 1.53 bcm/y | 1 | — |
| Interoceanic Corridor Gas PipelineJáltipan → Salina Cruz | Mexico | Proposed | 247 km | 1.53 bcm/y | 1 | — |
| Intisar-Brega Gas PipelineIntisar Oil field → Mersa Brega | Libya | Operating | 207 km | 42.5 bcm/y | 1 | — |
| Intisar-Sahel Gas Pipeline | Libya | Operating | 129 km | 19.8 bcm/y | 1 | — |
| Intisar-Zueitina Gas PipelineIntisar Oil field → Mersa Brega | Libya | Operating | 118 km | 42.5 bcm/y | 1 | — |
| Intisar–Sarir Gas PipelineIntisar Oil field → Sarir power station | Libya | Operating | 185 km | Not reported | 1 | 2017 |
| Ionian Adriatic Gas PipelineFier → Split | Albania, Montenegro, Croatia | Proposed | 540 km | 5 bcm/y | 1 | 2029 |
| Iran-Armenia Gas PipelineTabriz → Sardarian | Iran, Armenia | Operating | 141 km | 2.27 bcm/y | 1 | 2007 |
| Iran-Iraq Gas PipelineAbadan → Basrah | Iran, Iraq | Operating | 17 km | 0.36 bcm/y | 1 | 2017 |
| Iran-Oman Gas PipelineRudan County → Sohar port | Iran, Oman | Under construction | 1,000 km | 10 bcm/y | 1 | — |
| Iran-Pakistan PipelineAsaluyeh → Nawabshah | Iran, Pakistan | Under construction | 2,775 km | 7.67 bcm/y | 1 | 2024 |
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.