| 3201 | Blackwell Exploration & Development LLC | Dallas, TX 75252-5637 | Oil & Gas Operator | Jan 2024 |
| 3202 | Blackwell Gas Company | | Gas Operator | Jun 1997 |
| 3203 | Blackwell Operating Company | Houston, TX 77227 | Oil & Gas Operator | Jun 2007 |
| 3204 | Blackwell Operating LLC | Andrews, TX 79714 | Oil & Gas Operator | Feb 2025 |
| 3205 | Blackwood & Nichols LTD PTR | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 1996 |
| 3206 | Blade Oil Co. | Borger, TX 79007 | Oil & Gas Operator | Jun 1994 |
| 3207 | Blaik Oil Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2009 |
| 3208 | Blair Bill Inc | New Springfield, OH 44443 | Oil & Gas Operator | Dec 1994 |
| 3209 | Blair Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 3210 | Blair H H Oil Co | | Oil Operator | Feb 1988 |
| 3211 | Blair Harold L | Petrolia, PA 16050-1809 | Oil & Gas Operator | Dec 2020 |
| 3212 | Blair Oil Company | Kingfisher, OK 73750-1213 | Oil & Gas Operator | Feb 2025 |
| 3213 | Blair Raymond L SR | Kittanning, PA 16201-4957 | Oil & Gas Operator | Dec 2024 |
| 3214 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 3215 | Blair, R. W. | FT Stockton, TX 79735 | Oil & Gas Operator | Dec 2009 |
| 3216 | Blair, W Lynn | Lewisburg, KY 42256 | Oil & Gas Operator | Dec 2022 |
| 3217 | Blake Exploration | Hays, KS 67601 | Oil Operator | Oct 2007 |
| 3218 | Blake Exploration, LLC | Bogue, KS 67625 | Oil Operator | Dec 2024 |
| 3219 | Blake Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | May 2004 |
| 3220 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 2025 |
| 3221 | Blake Production LLC | Gillette, WY 82717 | Oil & Gas Operator | Feb 2025 |
| 3222 | Blakely Land & Exploration Co. | | Oil & Gas Operator | Apr 1991 |
| 3223 | Blakemore Oil & Gas In Okla | Allen, TX 75002-5008 | Oil Operator | Aug 2013 |
| 3224 | Blakemore, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2012 |
| 3225 | Blakenergy Operating, LLC | Spring, TX 77386 | Oil & Gas Operator | Apr 2025 |
| 3226 | Blalack, James William | Schertz, TX 78154 | Oil & Gas Operator | Apr 2025 |
| 3227 | Blanchard Henry | Tupelo, OK 74572 | Oil & Gas Operator | Mar 2023 |
| 3228 | Blanchard, James R. | Paola, KS 66071 | Oil Operator | Nov 2015 |
| 3229 | Blanchard, Joe, Jr. | Houma, LA 70360 | Oil Operator | Sep 1989 |
| 3230 | Blanco Engineering Inc. | Artesia, NM 88210 | Oil & Gas Operator | Feb 1997 |
| 3231 | Blanco Oil Co. | San Antonio, TX 78230 | Oil & Gas Operator | Feb 2004 |
| 3232 | Blanco Oil Co., Etal | | Oil Operator | Aug 1985 |
| 3233 | Blanford, Phillip | Sebree, KY 42455 | Oil Operator | Dec 2023 |
| 3234 | Blanke, Richard L. | Pavilion, NY 14525 | Gas Operator | Dec 2023 |
| 3235 | Blankenship, Lahoma J | | Gas Operator | Dec 2012 |
| 3236 | Blanton, James M. | Frankfort, KY 40621 | Gas Operator | Dec 2021 |
| 3237 | Blauser Energy Corporation | Marietta, OH 45750-6964-6964 | Oil & Gas Operator | Dec 2018 |
| 3238 | Blaze Oil & Gas Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 3239 | Blazer Energy Corp. | Alexandria, VA 22314 | Oil & Gas Operator | Dec 2014 |
| 3240 | Blazer Resources, Inc. | Leesburg, TX 75451 | Oil & Gas Operator | Apr 2025 |
| 3241 | Blazer, John A. | Oak Grove, AR 72660 | Oil Operator | Oct 1995 |
| 3242 | BLB Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Jan 2025 |
| 3243 | Bledsco, Inc. | Holliday, TX 76366 | Oil Operator | Feb 2010 |
| 3244 | Bledsoe Partners, Inc. | Oklahoma City, OK 73120 | Oil & Gas Operator | Mar 1995 |
| 3245 | Bledsoe Petro Corporation | Dallas, TX 75201 | Oil & Gas Operator | Dec 2000 |
| 3246 | Bledsoe, R.K. Trust Oil Operator | Jourdanton, TX 78026 | Oil & Gas Operator | Apr 2025 |
| 3247 | Blessed Operating LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Dec 2024 |
| 3248 | Blessing Energy, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Apr 2025 |
| 3249 | Blevins Production LLC | Jacksboro, TX 76458 | Oil Operator | Apr 2025 |
| 3250 | Bligh Petroleum, Inc. | | Oil & Gas Operator | Jun 2004 |
| 3251 | Bliss Pet Corporation | Hobbs, NM BAD ADDR | Gas Operator | Nov 1995 |
| 3252 | BLM Black Gold Properties, LTD. | Lubbock, TX 79423 | Oil & Gas Operator | Apr 2025 |
| 3253 | Block "T" Petroleum, Inc. | Tyler, TX 75707 | Oil & Gas Operator | Apr 2025 |
| 3254 | Block T Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
| 3255 | Blocker Exploration Company | | Oil & Gas Operator | Apr 1983 |
| 3256 | Bloomer & Associates, Inc. | Lago VIsta, TX 78645 | Oil & Gas Operator | Jul 2002 |
| 3257 | Bloomer Well Ser | | Oil Operator | Mar 1995 |
| 3258 | Bloomer Well Service | | Oil Operator | Dec 2009 |
| 3259 | Bloomer, Don C. And Bessie L. Liv. Trust | Rantoul, KS 66079 | Oil Operator | Dec 2024 |
| 3260 | Bloomfield Partners II LLC | | Oil & Gas Operator | Dec 2005 |
| 3261 | Bloomingdale Oil LLC | | Oil Operator | Dec 2023 |
| 3262 | Bloxom, John Tom | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2007 |
| 3263 | BLR Energy LLC | Pawhuska, OK 74056 | Oil Operator | Jan 2025 |
| 3264 | BLS Oil & Gas LLC | Dubois, PA 15801-0039 | Oil & Gas Operator | Dec 2024 |
| 3265 | BLS Production Co., Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 3266 | BLS Resources, Inc. | Rosharon, TX 77583 | Oil & Gas Operator | Feb 2001 |
| 3267 | Blu Oil Inc | Fairlawn, OH 44334 | Oil & Gas Operator | Dec 2023 |
| 3268 | Blubaugh Charles | | Oil Operator | Feb 1995 |
| 3269 | Blubaugh David | Danville, OH 43014 | Oil & Gas Operator | Dec 2007 |
| 3270 | Blubaugh Marvin C | Tonkawa, OK 74653-4739 | Oil & Gas Operator | Nov 2014 |
| 3271 | Blubaugh Ronald D | Tonkawa, OK 74653-0066 | Oil & Gas Operator | Sep 2014 |
| 3272 | Bluco Production Co., Inc. | Austin, TX 78716 | Oil & Gas Operator | Apr 2025 |
| 3273 | Blue & Gray Energy Inc | | Oil & Gas Operator | Jun 2011 |
| 3274 | Blue Bay Oil & Gas, L L C | | Gas Operator | Jan 2018 |
| 3275 | Blue Bear Energy LLC | Coalgate, OK 74538-3898 | Gas Operator | Feb 2025 |
| 3276 | Blue Bird Oil & Gas Prod. Co. | | Gas Operator | Dec 2007 |
| 3277 | Blue Bison Operating LLC | Chickasha, OK 73018 | Oil & Gas Operator | Jan 2025 |
| 3278 | Blue Cedar Energy LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2025 |
| 3279 | Blue Chip Oil Inc | | Oil & Gas Operator | Dec 2024 |
| 3280 | Blue Creek Gas Co. | | Oil & Gas Operator | Jun 2014 |
| 3281 | Blue Creek Inc | Fort Worth, TX 76181 | Oil & Gas Operator | Dec 2002 |
| 3282 | Blue Creek Resources, Inc. | | Oil & Gas Operator | May 1990 |
| 3283 | Blue Devil Exploration LLC | Tulsa, OK 74103-4217 | Oil & Gas Operator | Jan 2024 |
| 3284 | Blue Diamond Drilling, Inc. | | Oil Operator | Nov 1995 |
| 3285 | Blue Diamond Holdings, LLC | Wellsville, KS 66092 | Oil Operator | Dec 2009 |
| 3286 | Blue Diamond Mountain, LLC | Marble Falls, TX 78654 | Oil Operator | Apr 2025 |
| 3287 | Blue Dolphin Production LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Feb 2025 |
| 3288 | Blue Dome Operating, LLC | Tulsa, OK 74119 | Gas Operator | Apr 2025 |
| 3289 | Blue Duck Corporation | Mont Belvieu, TX 77580 | Oil & Gas Operator | Sep 2011 |
| 3290 | Blue Energy LLC | Scottsdale, AZ 85250 | Oil & Gas Operator | Dec 2020 |
| 3291 | Blue Flame Energy Corp | Pikeville, KY 41501 | Oil & Gas Operator | Dec 2023 |
| 3292 | Blue Goose Drill | | Oil Operator | Aug 1991 |
| 3293 | Blue Goose Drilling Company, Inc. | Great Bend, KS 67530 | Oil Operator | Dec 2024 |
| 3294 | Blue Group Operating, Inc. | Spencer, WV 25276 | Oil & Gas Operator | Nov 2021 |
| 3295 | Blue Jay Operating, LLC | Fort Worth, TX 76107 | Gas Operator | Dec 2009 |
| 3296 | Blue Lake Gas Storage Co | | Oil & Gas Operator | Oct 2016 |
| 3297 | Blue Marble Resources Op, LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2019 |
| 3298 | Blue Mill Farms, Inc. | | Oil & Gas Operator | Apr 1992 |
| 3299 | Blue Mountain Company, Inc. | Wichita, KS 67212 | Oil Operator | Feb 1999 |
| 3300 | Blue Oil, Inc. | Burnet, TX 78611 | Oil & Gas Operator | Apr 2025 |