| Golden Pass LNG Terminal LLC | Owner/operator | Houston, TX | 3 | 1 |
| Golden Pass Pipeline LLC | Owner/operator | Houston, TX | 5 | 2 |
| Golden Triangle Storage, LLC | Owner/operator | Houston, TX | 5 | 1 |
| Golden Valley Electric Association, Inc | Owner/operator | Fairbanks, AK | | 1 |
| Goldking Minerals Mgmt, L.l.c. | Owner/operator | | | 1 |
| Goldston Oil Corporation | Owner/operator | Houston, TX | | 1 |
| Gom Shelf LLC | Owner/operator | The Woodlands, TX | 1 | 1 |
| Gonzalez-Strength & Associates, Inc. | Contractor | | 1 | |
| Goodwin & Associates | Contractor | | 1 | |
| Gordon Terminal Service CO | Owner/operator | | | 2 |
| Gorham Paper And Tissue, LLC | Owner/operator | | | |
| Gottson Construction | Contractor | | 1 | |
| Gowan Construction | Contractor | | 2 | |
| Grama Ridge Storage And Transportation, LLC | Owner/operator | Houston, TX | | 1 |
| Granger Energy Of Honey Brook | Owner/operator | | | |
| Granite Creek Energy LLC | Owner/operator | Cody, WY | | 1 |
| Granite State Gas Transmission Inc | Owner/operator | Portsmouth, NH | | 1 |
| Grayco Midstream, LLC | Owner/operator | Edmond, OK | | 1 |
| Grayson Mill Operating, LLC | Owner/operator | | 2 | |
| Grayville Gas Dept, City Of | Owner/operator | Grayville, IL | | 1 |
| Great Basin Gas Transmission Company | Owner/operator | Las Vegas, NV | 7 | 1 |
| Great Basin Transmission Co. | Owner/operator | | | 1 |
| Great Lakes Chemical Corporation | Owner/operator | | | |
| Great Lakes Gas Transmission Limited Partnership | Owner/operator | Houston, TX | 8 | 1 |
| Great Plains Natural Gas Co | Owner/operator | Bismarck, ND | | 1 |
| Great Salt Plains Midstream Gas LLC | Owner/operator | | | 5 |
| Great Salt Plains Pipeline LLC | Owner/operator | Wichita, KS | | 3 |
| Greater Minnesota Transmission | Owner/operator | Faribault, MN | 1 | 1 |
| Greeley Gas Co | Owner/operator | | | |
| Green Natural Gas Ventures LLC | Owner/operator | Houston, TX | | 1 |
| Green Plains Fairmont LLC-NW Gas Contracted | Owner/operator | Mapleton, MN | | 1 |
| Green River Processing, LLC | Owner/operator | | | 4 |
| Green Wheel, LLC | Owner/operator | Jenks, OK | | 1 |
| Greencore Pipeline Company LLC | Owner/operator | Plano, TX | | |
| Greenidge Pipeline LLC | Owner/operator | Dresden, NY | | 1 |
| Greenleaf CO2 Solutions, LLC | Owner/operator | Ridgeland, MS | | 1 |
| Greenlight Gas Inc | Owner/operator | Wellington, TX | | 1 |
| Greens Port Crude By Rail | Owner/operator | | | 1 |
| Greentree Landfill Company, LLC | Owner/operator | Kersey, PA | | |
| Greenville Utilities Commission | Owner/operator | Greenville, NC | | |
| Greenway Energy, LLC | Owner/operator | Mayville, NY | | 1 |
| Greenwood Commission Of Public Works | Owner/operator | Greenwood, SC | | 1 |
| Greer Commission Of Public Works | Owner/operator | Greer, SC | | 1 |
| Gregory & Cook Construction | Contractor | Houston, TX | 1 | |
| Gregory Connector, LLC | Owner/operator | | | 1 |
| Gregory General Contracting, Inc. | Contractor | | 1 | |
| Greka | Owner/operator | Santa Maria, CA | | 1 |
| Greka Energy | Owner/operator | | | |
| Greka Oil And Gas | Owner/operator | | | |
| Grey Wolf Midstream, LLC | Owner/operator | | 1 | |