| 101 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 102 | Peter W. Herbst | | Gas Operator | Mar 1998 |
| 103 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 104 | Primos Production | | Oil & Gas Operator | Dec 2024 |
| 105 | Primos-Pennzoil JV | | Gas Operator | Feb 2005 |
| 106 | Primos-Tomlinson | | Gas Operator | Sep 1996 |
| 107 | Red Rooster Gas Corporation | | Gas Operator | Sep 1993 |
| 108 | Relco Exploration Co., Inc. | | Gas Operator | Aug 1987 |
| 109 | Republic Gas Gathering Sys Inc | | Oil & Gas Operator | Nov 1981 |
| 110 | Richard T. Perry | | Gas Operator | May 1993 |
| 111 | River Energy Co., Inc. | | Gas Operator | Dec 2012 |
| 112 | Roy M. Teel | | Oil & Gas Operator | Nov 1983 |
| 113 | Saxon Oil & Gas Expl., Inc. | | Gas Operator | Nov 1989 |
| 114 | Segars Operating | | Gas Operator | Apr 2014 |
| 115 | Shiloh Creek Resources, Inc. | | Gas Operator | Nov 2024 |
| 116 | Sierra Oil & Gas Corp. | | Gas Operator | Dec 1979 |
| 117 | Southern Natural Gas Co | Houston, TX 77001 | Oil & Gas Operator | Dec 2011 |
| 118 | Spillers Petroleum, Inc. | | Gas Operator | Mar 2010 |
| 119 | Strataform, Inc. | | Gas Operator | Jun 2002 |
| 120 | T. N. T. Tribal - Luffey | | Gas Operator | Oct 1994 |
| 121 | Tedco | | Gas Operator | Nov 1988 |
| 122 | Teel 78 A | | Gas Operator | Dec 1980 |
| 123 | Terronne Petroleum Corporation | | Oil & Gas Operator | Nov 2024 |
| 124 | Texas Gas Transmission Corp. | | Oil Operator | Aug 2003 |
| 125 | Texas Gas Transmission, LLC | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2024 |
| 126 | The Pioneer | | Gas Operator | Feb 2008 |
| 127 | Tomlinson Oil Co Inc | Great Bend, KS 67530 | Oil & Gas Operator | May 2025 |
| 128 | Tulip Industries, Inc. | | Oil & Gas Operator | Feb 2024 |
| 129 | Twin City Gas | | Gas Operator | Nov 1997 |
| 130 | Umc Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 131 | V. J. Huff | | Gas Operator | Mar 1981 |
| 132 | Viking Oil Co. | | Oil & Gas Operator | Dec 1990 |
| 133 | Wayne J. Spears | | Oil & Gas Operator | Sep 2005 |
| 134 | Woods, Et Al | | Gas Operator | Sep 1990 |