| 3101 | Black W K Incorp | | Oil & Gas Operator | Sep 1991 |
| 3102 | Black W K Produc | | Oil & Gas Operator | Aug 1991 |
| 3103 | Black Warrior Methane Corp. | | Gas Operator | Dec 2025 |
| 3104 | Black Wendell D | Atwood, OK 74827-9706 | Oil & Gas Operator | Jan 2009 |
| 3105 | Black'S Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | Mar 2026 |
| 3106 | Black, Frank J., Oil Operations, Inc. | Overland Park, KS 66213 | Oil & Gas Operator | Dec 2009 |
| 3107 | Black, Karl T. | Paradise, TX 76073 | Oil & Gas Operator | Aug 2003 |
| 3108 | Black-Travis, Inc. | Paola, KS 66071 | Oil Operator | Sep 2025 |
| 3109 | Blackbeard Operating East LLC | Midland, TX 79701-4532 | Oil & Gas Operator | Dec 2020 |
| 3110 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2026 |
| 3111 | Blackberry Oil Company | Jennings, OK 74038-0068 | Oil & Gas Operator | Dec 2002 |
| 3112 | Blackbird Company | Shreveport, LA 71106 | Oil & Gas Operator | Jan 2025 |
| 3113 | Blackbird Oil Co. | Great Bend, KS 67530 | Oil Operator | Feb 1996 |
| 3114 | Blackbird R 22 Og L.L.C. | Eastland, TX 76448 | Gas Operator | Mar 2026 |
| 3115 | Blackbrush O & G, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2012 |
| 3116 | Blackbrush O & G, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Mar 2026 |
| 3117 | Blackburn Oil & Gas, Inc. | Kinsley, KS 67547 | Oil & Gas Operator | Sep 2004 |
| 3118 | Blackburn Operating Co., Inc. | | Oil & Gas Operator | Jun 2008 |
| 3119 | Blackcat Oil Company | Glencoe, OK 74032 | Oil & Gas Operator | Dec 2025 |
| 3120 | Blackfire Operating LLC | Oklahoma City, OK 73116-4223 | Oil & Gas Operator | Jan 2026 |
| 3121 | Blackflat Oil Company LLC | Lubbock, TX 79424 | Oil Operator | Mar 2026 |
| 3122 | Blackhawk Energy | | Oil Operator | Dec 1993 |
| 3123 | Blackhawk Energy LLC | Greenville, KY 42345 | Oil & Gas Operator | Dec 2024 |
| 3124 | Blackhawk Explor | | Oil Operator | Jan 1990 |
| 3125 | Blackhawk Exploration, Inc. | Wichita, KS 67214 | Oil & Gas Operator | May 2020 |
| 3126 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 3127 | Blackhawk Production Company | | Oil Operator | Sep 2025 |
| 3128 | Blackhill Energy LLC | Canonsburg, PA 15317 | Gas Operator | Dec 2025 |
| 3129 | Blackhorn USA, LLC | Edwardsville, IL 62025 | Oil Operator | Dec 2024 |
| 3130 | Blackhorse Energy, LLC Of Texas | | Oil Operator | Jan 2025 |
| 3131 | Blackjack Creek LLC | Edmond, OK 73034-4195 | Oil & Gas Operator | Aug 2019 |
| 3132 | Blackjack Extraction LLC | Woodson, TX 76491 | Oil Operator | Mar 2026 |
| 3133 | Blackjack Oak Production,LLC | | Oil Operator | Dec 2025 |
| 3134 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Mar 2026 |
| 3135 | Blackjack Oil LTD | Denver, CO 80223 | Oil Operator | May 1996 |
| 3136 | Blackjack Oil, Inc. | Las Vegas, NV 89128 | Oil & Gas Operator | Nov 2019 |
| 3137 | Blackjack Operating L. L. C. | Cibolo, TX 78108 | Oil & Gas Operator | Mar 2026 |
| 3138 | Blackjack Supply Company | Edmond, OK 73013-1144 | Oil & Gas Operator | May 2012 |
| 3139 | Blackland Oil & Gas | Portland, TX 78374 | Oil & Gas Operator | Aug 1997 |
| 3140 | Blackmar, Jim Oil Operator | Luling, TX 78648 | Oil & Gas Operator | Jan 2021 |
| 3141 | Blackmun Family Partners, L.P. | Dallas, TX 75206 | Oil & Gas Operator | Mar 2026 |
| 3142 | Blackridge Resource Partners LLC | Lexington, KY 40507 | Oil & Gas Operator | Dec 2024 |
| 3143 | Blackrock Drilling, LLC | Abilene, TX 79606 | Oil Operator | Mar 2026 |
| 3144 | Blackrock Energy Corp | | Oil & Gas Operator | Jan 2026 |
| 3145 | Blackrock Energy LLC | Wagoner, OK 74467 | Oil Operator | Apr 2025 |
| 3146 | Blackrock Enterprises, LLC | Salem, WV 26426 | Oil & Gas Operator | Dec 2021 |
| 3147 | Blackrock Operating, LLC | Tuscola, TX 79562 | Oil & Gas Operator | Mar 2026 |
| 3148 | Blackshear, Charley | Winters, TX 79567 | Oil & Gas Operator | Oct 1998 |
| 3149 | Blackstock Petroleum Co | Tulsa, OK 74136-4940 | Oil & Gas Operator | Oct 1994 |
| 3150 | Blackstone Drill | | Oil & Gas Operator | Jan 1989 |
| 3151 | Blackstone Drilling, Inc. | McPherson, KS 67460 | Gas Operator | Nov 2011 |
| 3152 | Blackstone Energy Services LLC | Christoval, TX 76935 | Oil & Gas Operator | Mar 2026 |
| 3153 | Blackstone Operating | Red Lodge, MT 59068 | Gas Operator | Dec 2006 |
| 3154 | Blackstone Operating Inc | Red Lodge, MT 59068 | Gas Operator | Nov 2009 |
| 3155 | Blackwater Oil & Gas Corporation | Colleyville, TX 76034 | Oil & Gas Operator | May 2018 |
| 3156 | Blackwelder Oil | MC Camey, TX 79752 | Oil Operator | Mar 2026 |
| 3157 | Blackwell BMC, LLC | Dallas, TX 75204 | Oil & Gas Operator | Jan 2022 |
| 3158 | Blackwell BMC, LP | Dallas, TX 75252 | Oil & Gas Operator | Mar 2007 |
| 3159 | Blackwell Drilling Co. | Cameron, TX 76520 | Oil & Gas Operator | Nov 2004 |
| 3160 | Blackwell Exp & Development, LLC | Dallas, TX 75252 | Oil & Gas Operator | Nov 2023 |
| 3161 | Blackwell Exploration & Development LLC | Dallas, TX 75252-5637 | Oil & Gas Operator | Jan 2024 |
| 3162 | Blackwell Gas Company | | Gas Operator | Jun 1997 |
| 3163 | Blackwell Operating Company | Houston, TX 77227 | Oil & Gas Operator | Jun 2007 |
| 3164 | Blackwell Operating LLC | Andrews, TX 79714 | Oil & Gas Operator | May 2025 |
| 3165 | Blackwood & Nichols LTD PTR | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 1996 |
| 3166 | Blade Oil Co. | Borger, TX 79007 | Oil & Gas Operator | Jun 1994 |
| 3167 | Blaik Oil Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2009 |
| 3168 | Blair Bill Inc | New Springfield, OH 44443 | Oil & Gas Operator | Dec 1994 |
| 3169 | Blair Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 3170 | Blair H H Oil Co | | Oil Operator | Feb 1988 |
| 3171 | Blair Harold L | Petrolia, PA 16050-1809 | Oil & Gas Operator | Dec 2020 |
| 3172 | Blair Oil Company | Kingfisher, OK 73750-1213 | Oil & Gas Operator | Jan 2026 |
| 3173 | Blair Raymond L SR | Kittanning, PA 16201-4957 | Oil & Gas Operator | Dec 2025 |
| 3174 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 3175 | Blair, R. W. | FT Stockton, TX 79735 | Oil & Gas Operator | Dec 2009 |
| 3176 | Blair, W Lynn | Lewisburg, KY 42256 | Oil & Gas Operator | Dec 2022 |
| 3177 | Blake Exploration | Hays, KS 67601 | Oil Operator | Oct 2007 |
| 3178 | Blake Exploration, LLC | Bogue, KS 67625 | Oil Operator | Sep 2025 |
| 3179 | Blake Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | May 2004 |
| 3180 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Mar 2026 |
| 3181 | Blake Production LLC | Gillette, WY 82717 | Oil & Gas Operator | Jan 2026 |
| 3182 | Blakely Land & Exploration Co. | | Oil & Gas Operator | Apr 1991 |
| 3183 | Blakemore Oil & Gas In Okla | Allen, TX 75002-5008 | Oil Operator | Aug 2013 |
| 3184 | Blakemore, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2012 |
| 3185 | Blakenergy Operating, LLC | Spring, TX 77386 | Oil & Gas Operator | Mar 2026 |
| 3186 | Blalack, James William | Schertz, TX 78154 | Oil & Gas Operator | Mar 2026 |
| 3187 | Blanchard Henry | Tupelo, OK 74572 | Oil & Gas Operator | Mar 2023 |
| 3188 | Blanchard, James R. | Paola, KS 66071 | Oil Operator | Nov 2015 |
| 3189 | Blanchard, Joe, Jr. | Houma, LA 70360 | Oil Operator | Sep 1989 |
| 3190 | Blanco Engineering Inc. | Artesia, NM 88210 | Oil & Gas Operator | Feb 1997 |
| 3191 | Blanco Oil Co. | San Antonio, TX 78230 | Oil & Gas Operator | Feb 2004 |
| 3192 | Blanco Oil Co., Etal | | Oil Operator | Aug 1985 |
| 3193 | Blanford, Phillip | Sebree, KY 42455 | Oil Operator | Dec 2023 |
| 3194 | Blanke, Richard L. | Pavilion, NY 14525 | Gas Operator | Dec 2024 |
| 3195 | Blankenship, Lahoma J | | Gas Operator | Dec 2012 |
| 3196 | Blanton, James M. | Frankfort, KY 40621 | Gas Operator | Dec 2021 |
| 3197 | Blaufuss Oil LLC | Garnett, KS 66032 | Oil Operator | Aug 2025 |
| 3198 | Blauser Energy Corporation | Marietta, OH 45750-6964 | Oil & Gas Operator | Dec 2018 |
| 3199 | Blaze Oil & Gas Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 3200 | Blazer Energy Corp. | Alexandria, VA 22314 | Oil & Gas Operator | Dec 2014 |