| 3001 | Black Star Oil Company | Plano, TX 75094 | Oil & Gas Operator | May 2024 |
| 3002 | Black Star Petro | | Oil Operator | Jul 1995 |
| 3003 | Black Star Petroleum Corp. | Oceanside, NY 11572 | Oil Operator | Oct 1997 |
| 3004 | Black Stone Energy Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2004 |
| 3005 | Black Stone Energy Company, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2024 |
| 3006 | Black Stone Oil Company | Dallas, TX 75244 | Oil & Gas Operator | Feb 1997 |
| 3007 | Black Stone Petroleum LLC | Wichita, KS 67206 | Oil Operator | Jul 2019 |
| 3008 | Black Strata LLC | Weatherford, TX 76086 | Oil Operator | May 2024 |
| 3009 | Black Swan Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 3010 | Black Tea Oil, LLC | Wichita, KS 67206 | Oil Operator | Jan 2024 |
| 3011 | Black Thunder Oil LLC | Gillette, WY 82717 | Oil Operator | Mar 2024 |
| 3012 | Black Top Operating, LLC | Midland, TX 79706 | Oil & Gas Operator | May 2024 |
| 3013 | Black Velvet Petro. Co. | | Oil & Gas Operator | Dec 2007 |
| 3014 | Black W K Produc | | Oil & Gas Operator | Aug 1991 |
| 3015 | Black Warrior Methane Corp. | Brookwood, AL 35444 | Gas Operator | Dec 2023 |
| 3016 | Black Wendell D | Atwood, OK 74827-9706 | Oil & Gas Operator | Jan 2009 |
| 3017 | Black'S Oil & Gas | Pampa, TX 79066 | Oil & Gas Operator | May 2024 |
| 3018 | Black, Frank J., Oil Operations, Inc. | Overland Park, KS 66213 | Oil & Gas Operator | Dec 2009 |
| 3019 | Black, Karl T. | Paradise, TX 76073 | Oil & Gas Operator | Aug 2003 |
| 3020 | Black-Travis, Inc. | Paola, KS 66071 | Oil Operator | Dec 2023 |
| 3021 | Blackbeard Operating East, LLC | | Oil & Gas Operator | Dec 2020 |
| 3022 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | May 2024 |
| 3023 | Blackberry Oil Company | Jennings, OK 74038-0068 | Oil & Gas Operator | Dec 2002 |
| 3024 | Blackbird Oil Co. | Great Bend, KS 67530 | Oil Operator | Feb 1996 |
| 3025 | Blackbrush O & G, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2012 |
| 3026 | Blackbrush O & G, LLC | San Antonio, TX 78259 | Oil & Gas Operator | May 2024 |
| 3027 | Blackburn Oil & Gas, Inc. | Kinsley, KS 67547 | Oil & Gas Operator | Sep 2004 |
| 3028 | Blackburn Operating Co., Inc. | | Oil & Gas Operator | Jun 2008 |
| 3029 | Blackcat Oil Company | Mannford, OK 74044-0286 | Oil & Gas Operator | Feb 2024 |
| 3030 | Blackfire Operating LLC | | Oil & Gas Operator | Feb 2024 |
| 3031 | Blackflat Oil Company LLC | Lubbock, TX 79424 | Oil Operator | May 2024 |
| 3032 | Blackhawk Energy | | Oil Operator | Dec 1993 |
| 3033 | Blackhawk Energy LLC | Greenville, KY 42345 | Oil & Gas Operator | Jan 2024 |
| 3034 | Blackhawk Explor | | Oil Operator | Jan 1990 |
| 3035 | Blackhawk Exploration, Inc. | Wichita, KS 67214 | Oil & Gas Operator | May 2020 |
| 3036 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 3037 | Blackhawk Production Company | | Oil Operator | Jan 2024 |
| 3038 | Blackhill Energy LLC | Canonsburg, PA 15317 | Gas Operator | Feb 2024 |
| 3039 | Blackhorn USA, LLC | Edwardsville, IL 62025 | Oil Operator | Dec 2022 |
| 3040 | Blackhorse Energy, LLC Of Texas | | Oil Operator | Jan 2024 |
| 3041 | Blackjack Oak Production LLC | Houston, TX 77057-2643 | Oil Operator | Jan 2024 |
| 3042 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | May 2024 |
| 3043 | Blackjack Oil LTD | Denver, CO 80223 | Oil Operator | May 1996 |
| 3044 | Blackjack Oil, Inc. | Las Vegas, NV 89128 | Oil & Gas Operator | Nov 2019 |
| 3045 | Blackjack Operating L. L. C. | Schertz, TX 78154 | Oil Operator | May 2024 |
| 3046 | Blackjack Supply Company | Edmond, OK 73013-1144 | Oil & Gas Operator | May 2012 |
| 3047 | Blackland Oil & Gas | Portland, TX 78374 | Oil & Gas Operator | Aug 1997 |
| 3048 | Blackmar, Jim Oil Operator | Luling, TX 78648 | Oil & Gas Operator | Jan 2021 |
| 3049 | Blackmun Family Partners, L.P. | Dallas, TX 75206 | Oil & Gas Operator | May 2024 |
| 3050 | Blackridge Resource Partners LLC | Lexington, KY 40507 | Oil & Gas Operator | Dec 2022 |
| 3051 | Blackrock Drilling, LLC | Abilene, TX 79606 | Oil Operator | May 2024 |
| 3052 | Blackrock Energy Corp | | Oil Operator | Mar 2024 |
| 3053 | Blackrock Enterprises, LLC | Salem, WV 26426 | Oil & Gas Operator | Dec 2021 |
| 3054 | Blackshear, Charley | Winters, TX 79567 | Oil & Gas Operator | Oct 1998 |
| 3055 | Blackstock Petroleum Co | Tulsa, OK 74136-4940 | Oil & Gas Operator | Oct 1994 |
| 3056 | Blackstone Drill | | Oil & Gas Operator | Jan 1989 |
| 3057 | Blackstone Drilling, Inc. | McPherson, KS 67460 | Gas Operator | Nov 2011 |
| 3058 | Blackstone Energy Services LLC | Christoval, TX 76935 | Oil & Gas Operator | May 2024 |
| 3059 | Blackstone Oil & Gas (Kansas), LLC | Houston, TX 77002 | Gas Operator | Jan 2024 |
| 3060 | Blackstone Operating | Red Lodge, MT 59068 | Gas Operator | Dec 2006 |
| 3061 | Blackstone Operating Inc | Red Lodge, MT 59068 | Gas Operator | Nov 2009 |
| 3062 | Blackwater Oil & Gas Corporation | Colleyville, TX 76034 | Oil & Gas Operator | May 2018 |
| 3063 | Blackwelder Oil | MC Camey, TX 79752 | Oil Operator | May 2024 |
| 3064 | Blackwell BMC, LLC | Dallas, TX 75204 | Oil & Gas Operator | Jan 2022 |
| 3065 | Blackwell BMC, LP | Dallas, TX 75252 | Oil & Gas Operator | Mar 2007 |
| 3066 | Blackwell Drilling Co. | Cameron, TX 76520 | Oil & Gas Operator | Nov 2004 |
| 3067 | Blackwell Exp & Development, LLC | Dallas, TX 75252 | Oil & Gas Operator | Nov 2023 |
| 3068 | Blackwell Exploration & Development LLC | Dallas, TX 75252 | Oil & Gas Operator | Jan 2024 |
| 3069 | Blackwell Operating Company | Houston, TX 77227 | Oil & Gas Operator | Jun 2007 |
| 3070 | Blackwell Operating LLC | Andrews, TX 79714 | Oil & Gas Operator | Mar 2024 |
| 3071 | Blackwood & Nichols LTD PTR | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 1996 |
| 3072 | Blade Oil Co. | Borger, TX 79007 | Oil & Gas Operator | Jun 1994 |
| 3073 | Blaik Oil Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2009 |
| 3074 | Blair Bill Inc | New Springfield, OH 44443 | Oil & Gas Operator | Dec 1994 |
| 3075 | Blair Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 3076 | Blair H H Oil Co | | Oil Operator | Feb 1988 |
| 3077 | Blair Harold L | Petrolia, PA 16050-1809 | Oil & Gas Operator | Dec 2020 |
| 3078 | Blair Oil Company | Kingfisher, OK 73750-1213 | Oil & Gas Operator | Feb 2024 |
| 3079 | Blair Raymond L SR | Kittanning, PA 16201-4957 | Oil & Gas Operator | Dec 2023 |
| 3080 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 3081 | Blair, R. W. | FT Stockton, TX 79735 | Oil & Gas Operator | Dec 2009 |
| 3082 | Blair, W Lynn | Lewisburg, KY 42256 | Oil & Gas Operator | Dec 2022 |
| 3083 | Blake Exploration | Hays, KS 67601 | Oil Operator | Oct 2007 |
| 3084 | Blake Exploration, LLC | Bogue, KS 67625 | Oil Operator | Jan 2024 |
| 3085 | Blake Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | May 2004 |
| 3086 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | May 2024 |
| 3087 | Blake Production LLC | Gillette, WY 82717 | Oil & Gas Operator | Mar 2024 |
| 3088 | Blakely Land & Exploration Co. | | Oil & Gas Operator | Apr 1991 |
| 3089 | Blakemore Oil & Gas In Okla | Allen, TX 75002-5008 | Oil Operator | Aug 2013 |
| 3090 | Blakemore, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2012 |
| 3091 | Blakenergy Operating, LLC | Spring, TX 77386 | Oil & Gas Operator | May 2024 |
| 3092 | Blalack, James William | Schertz, TX 78154 | Oil & Gas Operator | May 2024 |
| 3093 | Blanchard Henry | Tupelo, OK 74572 | Oil & Gas Operator | Mar 2023 |
| 3094 | Blanchard, James R. | Paola, KS 66071 | Oil Operator | Nov 2015 |
| 3095 | Blanchard, Joe, Jr. | Houma, LA 70360 | Oil Operator | Sep 1989 |
| 3096 | Blanco Engineering Inc. | Artesia, NM 88210 | Oil & Gas Operator | Feb 1997 |
| 3097 | Blanco Oil Co., Etal | | Oil Operator | Aug 1985 |
| 3098 | Blanco Oil Company | San Antonio, TX 78230 | Oil & Gas Operator | Aug 2010 |
| 3099 | Blanford, Phillip | Sebree, KY 42455 | Oil Operator | Dec 2022 |
| 3100 | Blanke, Richard L. | Pavilion, NY 14525 | Gas Operator | Dec 2022 |