| 201 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 202 | Jones Exploration Company | | Oil & Gas Operator | Jun 1985 |
| 203 | Jones Oil Company | Ardmore, OK 73402-1389 | Oil & Gas Operator | Aug 2022 |
| 204 | Jones Operating Company | Levelland, TX 79336 | Oil & Gas Operator | Oct 2000 |
| 205 | Jones-O'Brien, Inc. | | Oil & Gas Operator | Feb 1982 |
| 206 | Jordan Oil & Gas Company | Healdsburg, CA 95448-1919 | Oil & Gas Operator | Mar 1995 |
| 207 | Jordan Oil Company, Inc. | Lake Charles, LA 70602 | Oil & Gas Operator | Dec 2019 |
| 208 | Joseph C. Leckelt | | Oil Operator | Aug 1995 |
| 209 | Joseph F. Fritz Operating Co. | | Oil & Gas Operator | Mar 1983 |
| 210 | Josey Exploration, Inc. | | Oil & Gas Operator | Dec 1988 |
| 211 | JPM Petroleum, Inc. | | Oil Operator | May 1986 |
| 212 | JSB, LLC | | Oil & Gas Operator | Dec 2024 |
| 213 | JSK Resources, Inc. | | Oil & Gas Operator | Dec 1999 |
| 214 | Julil Energy, LLC | Richmond, TX 77406 | Oil & Gas Operator | Dec 2024 |
| 215 | June Energy Inc. | | Oil & Gas Operator | May 2000 |
| 216 | Jurassic Exploration Co Inc. | | Oil & Gas Operator | Nov 1994 |
| 217 | Justiss Oil Co Inc-Munoco Co | | Oil & Gas Operator | Dec 2008 |
| 218 | Justiss Oil Company, Inc. | Jena, LA 71342 | Oil & Gas Operator | Nov 2025 |
| 219 | Justiss-Mears Oil Co. | | Oil & Gas Operator | Feb 1981 |
| 220 | Justiss-Mears Oil Co., Et Al | | Oil & Gas Operator | Feb 1981 |
| 221 | Justiss-Mears-D. Latimer | | Oil Operator | Mar 1979 |
| 222 | JWR Exploration Inc. | | Oil & Gas Operator | Jul 1989 |
| 223 | JWR Oil And Gas | | Oil Operator | Nov 2024 |
| 224 | JZJ Corporation | | Oil Operator | May 2010 |