| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | J & G Operating | Shelby, MT 59474 | Oil & Gas Operator | Aug 2000 |
| 2 | J H Oil Company (James Hofland) | Kevin, MT 59454 | Oil & Gas Operator | Jun 2015 |
| 3 | J.H.R. Corporation | Bridgeville, PA 15017 | Oil & Gas Operator | Jul 2001 |
| 4 | Jake Oil, LLC | Billings, MT 59101 | Oil Operator | Feb 2022 |
| 5 | JN Expl & Prod LTD Partnership | Billings, MT 59103-0159 | Oil & Gas Operator | Feb 2001 |
| 6 | Journey Operating, L.L.C. | Sugar Land, TX 77496 | Oil & Gas Operator | Aug 2006 |
| 7 | Jurassic Resources Development Na LLC | Bismarck, ND 58504-5835 | Gas Operator | Jan 2024 |