| Summit Utilities | Summit Utilities Inc. | Natural gas | AR | 61.9 mi |
| Sierrita Gas Pipeline | Sierrita Gas Pipeline | Natural gas | AZ | 61.8 mi |
| Scissortail Energy | Scissortail Energy LLC | Natural gas | OK | 61.6 mi |
| Ugi Penn Natural Gas | Ugi Penn Natural Gas | Natural gas | PA | 61.6 mi |
| Southern Union Gas Services | Southern Union Gas Services, LTD | Natural gas | NM, TX | 61.5 mi |
| Roanoke Gas | Roanoke Gas Co, Roanoke Gas Compnay | Natural gas | VA | 60.5 mi |
| RH Energytrans | RH energytrans, LLC | Natural gas | OH, PA | 59.9 mi |
| SG Resources Mississippi | SG Resources Mississippi, LLC | Natural gas | AL, MS | 59.3 mi |
| Douglas Pipeline | Douglas Pipeline Co | Natural gas | ID, MD, NJ, OH, OK, PA, SC, WV | 59 mi |
| Seacoast Gas Transmission | SeaCoast Gas Transmission LLC | Natural gas | FL | 58.4 mi |
| North Shore Gas | North Shore Gas Co | Natural gas | IL, WI | 58.1 mi |
| Amp Intrastate Pipeline | Amp Intrastate Pipeline, LLC | Natural gas | TX | 58 mi |
| Monument Chemical Kentucky | Monument Chemical Kentucky, LLC | Natural gas | KY | 58 mi |
| Parkway Pipeline | KN Retail Lines, Parkway LLC, Parkway Pipeline LLC, Sourcegas LLC | Refined products | MS | 57.5 mi |
| Columbia Gas Of Kentucky | Columbia Gas Of Kentucky Inc | Natural gas | KY | 56.9 mi |
| Enlink North Texas Gathering | Enlink North Texas Gathering, LP | Natural gas | TX | 56.8 mi |
| Michigan Gas Utilities | Aquila Neetworks, Michigan Gas Utilities Co | Natural gas | MI | 56.4 mi |
| Egan Hub Storage | Egan Hub Storage, LLC | Natural gas | LA | 55.9 mi |
| Montana - Dakota Utilities | Montana - Dakota Utilities Co | Natural gas | MT, ND, SD | 55.2 mi |
| Nebraska City Utilities | Nebraska City Utilities | Natural gas | NE | 54.9 mi |
| Lowman Pipeline | Lowman Pipeline | Natural gas | AL | 54 mi |
| BBT Midla | BBT Midla, LLC | Natural gas | LA, MS | 53.3 mi |
| Lasalle Pipeline | Lasalle Pipeline, LP | Natural gas | TX | 53.3 mi |
| PVR Gas Processing | PVR Gas Processing Llc. | Natural gas | OK, TX | 53.2 mi |
| Public Service Electric & Gas | Public Service Electric & Gas Co | Natural gas | NJ | 53.2 mi |
| Enrema | Enrema, LLC | Natural gas | TN | 53 mi |
| Las Vegas Natural Gas System | City Of Las Vegas, Las Vegas Natural Gas System | Natural gas | NM | 53 mi |
| Standard Pacific Gas Line | Standard Pacific Gas Line Inc | Natural gas | CA | 53 mi |
| BBT Bamagas Intrastate | BBT Bamagas Intrastate, LLC | Natural gas | AL | 52.6 mi |
| Semco Pipeline | Semco Pipeline Co | Natural gas | MI | 52.6 mi |
| Equitable Gas | Equitable Gas Company | Natural gas | PA | 52.1 mi |
| K O Transmission | K O Transmission Company, Ko Transmission Company | Natural gas | KY, OH | 52.1 mi |
| MPLX | MPLX LP | Natural gas | ND, NM, OH, OK, PA, TX, WV | 51.9 mi |
| Markwest Oklahoma Gas | Markwest Oklahoma Gas Company, LLC | Natural gas | OK | 51.9 mi |
| Markwest Pioneer | MarkWest Pioneer LLC | Natural gas | OK | 51.9 mi |
| BBT Onshore Pipelines | BBT Onshore Pipelines LLC | Natural gas | LA | 51.4 mi |
| Oneok Gas Storage | Oneok Gas Storage, LLC | Natural gas | OK | 50.1 mi |
| Southern Gas Transmission | Southern Gas Transmission | Natural gas | AL | 50 mi |
| Greenwood Commission Of Public Works | Commissioners Of Public Works, Greenwood Commission Of Public Works | Natural gas | SC | 49.6 mi |
| Arlington Storage | Arlington Storage Company LLC | Natural gas | NY | 49.5 mi |
| Hanlon Gas Processing | Hanlon Gas Processing, LTD | Natural gas | TX | 49.5 mi |
| Spire Gulf | Spire Gulf Inc. | Natural gas | AL | 49.2 mi |
| Springfield, City Utilities Of | Springfield Mo Municipal Gas, Springfield, City Utilities Of | Natural gas | MO | 48.8 mi |
| General Gas Pipeline | General Gas Pipeline, LLC | Natural gas | TN | 48.3 mi |
| PVR Marcellus Gas Gathering | PVR Marcellus Gas Gathering, LLC | Natural gas | PA | 48 mi |
| Humphreys County Utility District | Humphreys County Utility District | Natural gas | TN | 47.9 mi |
| Foundation Energy Management | Foundation Energy Management, LLC | Natural gas | CO, KS, NE | 47.8 mi |
| Hardy Storage | Hardy Storage | Natural gas | WV | 47.4 mi |
| Duke Energy Ohio | Duke Energy Ohio | Natural gas | OH | 47 mi |
| Trans Louisiana Gas Pipeline - Atmos Energy | Trans Louisiana Gas Pipeline - Atmos Energy Corporation | Natural gas | LA | 46.4 mi |