| 13301 | HMX Investments, Inc. | Katy, TX 77494 | Oil & Gas Operator | Jun 2025 |
| 13302 | HNG Oil Company | | Oil & Gas Operator | Jun 1987 |
| 13303 | HNG Storage Company | Houston, TX 77042 | Oil & Gas Operator | Mar 2002 |
| 13304 | Hoag Memorial Hospital Presbyterian | | Gas Operator | Jul 2025 |
| 13305 | Hoard John L Family Trust | Ardmore, OK 73402-1706 | Oil & Gas Operator | Jun 2022 |
| 13306 | Hobbs Energy Corporation | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2008 |
| 13307 | Hobbs Oil Co. | | Oil Operator | Dec 1999 |
| 13308 | Hobbs Production LLC | | Oil Operator | Mar 2023 |
| 13309 | Hobbs, Columbus Agent | | Oil & Gas Operator | Dec 2018 |
| 13310 | Hobo Oil & Gas | | Oil & Gas Operator | Aug 2013 |
| 13311 | Hobson Petroleum Corp | | Oil & Gas Operator | Sep 1991 |
| 13312 | Hoc Ca LLC | | Oil & Gas Operator | Jul 2025 |
| 13313 | Hoc Operating Co., Inc. | Houston, TX 77056 | Oil & Gas Operator | Nov 1999 |
| 13314 | Hochendel Consultants | | Oil & Gas Operator | Jul 1995 |
| 13315 | Hocking Hills Energy And Well Service LLC | Logan, OH 43138-8497 | Oil & Gas Operator | Dec 2024 |
| 13316 | Hocking Technical College | Nelsonville, OH 45764 | Oil & Gas Operator | Dec 2024 |
| 13317 | Hockran, Thomas A. | Bemus Point, NY 14712 | Gas Operator | Dec 2024 |
| 13318 | Hoco Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2025 |
| 13319 | Hodgden Operating Co., Inc. | Enid, OK 73702 | Oil & Gas Operator | Jul 2025 |
| 13320 | Hodgden, Jack D. | Enid, OK 73702 | Oil & Gas Operator | Apr 2000 |
| 13321 | Hodge T F | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2007 |
| 13322 | Hodge, T.F. & Morrow Oil & Gas Co. | | Oil & Gas Operator | Sep 1993 |
| 13323 | Hodges & Hodges Oil Venture | Gallup, NM 87301 | Oil Operator | May 1999 |
| 13324 | Hodges & Hodges Productions | Anson, TX 79501 | Oil & Gas Operator | Aug 2003 |
| 13325 | Hodges & Rister | Abilene, TX 79603 | Oil & Gas Operator | Apr 2016 |
| 13326 | Hodges Oil | | Oil Operator | May 2025 |
| 13327 | Hodges, Dennis D. And Peggy D. | Reading, KS 66868 | Oil Operator | May 2025 |
| 13328 | Hodges, James Aaron | Fort Worth, TX 76179 | Oil & Gas Operator | Sep 2025 |
| 13329 | Hodges, Thomas | Alvord, TX 76225 | Oil & Gas Operator | Oct 2002 |
| 13330 | Hoefle Oil Company | | Gas Operator | Dec 2011 |
| 13331 | Hoehn French | Enid, OK 73701-5600 | Oil & Gas Operator | Oct 1996 |
| 13332 | Hoehn Oil | Wellsville, KS 66092 | Oil Operator | Oct 1998 |
| 13333 | Hoehn Oil LLC | Wellsville, KS 66092 | Oil Operator | May 2025 |
| 13334 | Hoell Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2025 |
| 13335 | Hoelscher, Weldon | San Angelo, TX 76904 | Oil & Gas Operator | Aug 2003 |
| 13336 | Hoener Ross Inco | | Oil Operator | Dec 1991 |
| 13337 | Hoener, Ross | Iuka, KS 67066 | Oil & Gas Operator | May 2025 |
| 13338 | Hoepker, Larry | Humboldt, KS 66748 | Oil Operator | Dec 2024 |
| 13339 | Hoermann, S. E. | Seguin, TX 78155 | Oil & Gas Operator | Sep 2025 |
| 13340 | Hofco, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2025 |
| 13341 | Hoff Elmer & Mildred | | Oil & Gas Operator | Jan 1991 |
| 13342 | Hoff Oil & Gas | | Oil Operator | May 2013 |
| 13343 | Hoffman George A | | Oil & Gas Operator | Dec 2022 |
| 13344 | Hoffman Oil & Gas Company | | Oil & Gas Operator | Aug 1997 |
| 13345 | Hoffman Oil, Inc. | Claflin, KS 67525 | Oil Operator | Feb 2025 |
| 13346 | Hoffman Petroleu | | Oil Operator | Sep 1989 |
| 13347 | Hoffman Petroleum, Inc. | Littleton, CO 80120 | Oil Operator | Sep 1996 |
| 13348 | Hoffman Resources LLC | Hoisington, KS 67544 | Oil & Gas Operator | May 2025 |
| 13349 | Hoffman, Brian | Claflin, KS 67525 | Oil Operator | May 2025 |
| 13350 | Hoffman, Carol | Strykersville, NY 14145 | Gas Operator | Dec 2024 |
| 13351 | Hoffman, Myrle F. | Denver, CO 80202 | Oil Operator | Dec 1986 |
| 13352 | Hoffmann Oil Company | Eastland, TX 76448 | Oil & Gas Operator | Sep 2025 |
| 13353 | Hofland, James D. | Kevin, MT 59454 | Oil & Gas Operator | Jul 2025 |
| 13354 | Hog Operating LLC | Dallas, TX 75201 | Oil & Gas Operator | Sep 2025 |
| 13355 | Hogan Drilling Company, Inc. | | Oil & Gas Operator | Mar 1981 |
| 13356 | Hogan Energy Corporation | | Oil & Gas Operator | Oct 1999 |
| 13357 | Hogan Energy, Inc. | | Oil & Gas Operator | Dec 2015 |
| 13358 | Hogan Exploration, Inc. | | Oil & Gas Operator | Mar 2000 |
| 13359 | Hogan, Wayne Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jun 2006 |
| 13360 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Jul 2025 |
| 13361 | Hoge Oil & Gas Expl Inc | Edmond, OK 73013-3709 | Oil & Gas Operator | Sep 2023 |
| 13362 | Hoggard, Kenneth | Loving, TX 76460 | Oil & Gas Operator | Sep 2025 |
| 13363 | Hogoboom Al Oilf | | Oil Operator | Oct 1990 |
| 13364 | Hoke Jr J T | Edmond, OK 73034 | Oil Operator | Nov 1998 |
| 13365 | Holbein & Wright Resources Inc. | Bandera, TX 78003 | Oil & Gas Operator | Sep 2025 |
| 13366 | Holbrook LLC | Bimble, KY 40915 | Oil & Gas Operator | Jun 2025 |
| 13367 | Holco Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | Sep 2025 |
| 13368 | Holcomb Company, The | Freer, TX 78357 | Oil & Gas Operator | Aug 1996 |
| 13369 | Holcomb Enterprises | Clyde, TX 79510 | Oil & Gas Operator | Aug 2003 |
| 13370 | Holcomb Oil & Gas Inc | Farmington, NM 87401 | Oil & Gas Operator | Jul 2025 |
| 13371 | Holcomb Oil Comp | | Oil Operator | Sep 1991 |
| 13372 | Holden Energy Corporation | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2015 |
| 13373 | Holden Harold B | Billings, MT 59103 | Oil Operator | Jun 1996 |
| 13374 | Holden Oil & Gas | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 13375 | Holifield Oil Company | Giddings, TX 78942 | Oil & Gas Operator | Mar 2009 |
| 13376 | Holke Dave Consulting Inc | Meridian, ID 83646-4812 | Oil & Gas Operator | Jun 2025 |
| 13377 | Holl Investment Co | Logan, OH 43138 | Oil & Gas Operator | Dec 2019 |
| 13378 | Holland Assoc | | Oil Operator | Sep 1987 |
| 13379 | Holland Oil & Gas | Brookesmith, TX 76827 | Oil & Gas Operator | Dec 2010 |
| 13380 | Holland Oil Co. | Petrolia, TX 76377 | Oil Operator | Aug 2010 |
| 13381 | Holland Production Co | | Oil Operator | Aug 1982 |
| 13382 | Holland, W. M. | Petrolia, TX 76377 | Oil & Gas Operator | Jul 2009 |
| 13383 | Hollandsworth & Travis | Longview, TX 75606 | Oil & Gas Operator | Mar 2001 |
| 13384 | Hollandsworth & Travis Oil | Longview, TX 75606 | Oil Operator | May 2003 |
| 13385 | Holleman & Parks Oil & Gas Inc | | Oil & Gas Operator | May 1995 |
| 13386 | Hollenbeck, Lloyd D. | Andover, NY 14806 | Oil & Gas Operator | Dec 2024 |
| 13387 | Hollenshead Oil Co. | | Oil & Gas Operator | Mar 1992 |
| 13388 | Holler Oil Co. | San Angelo, TX 76906 | Oil & Gas Operator | Aug 2003 |
| 13389 | Holley Oil Company, LLC | Chappell Hill, TX 77426 | Oil & Gas Operator | Sep 2025 |
| 13390 | Holley Operating, L. L. C. | Abilene, TX 79601 | Oil Operator | Jul 2025 |
| 13391 | Holli-Tex Supply Co. | Holliday, TX 76366 | Oil & Gas Operator | May 2018 |
| 13392 | Holliday CSG Corp. | Holliday, TX 76366 | Oil & Gas Operator | Sep 2025 |
| 13393 | Holliday Drilling, Inc. | Stephenville, TX 76401 | Oil & Gas Operator | Dec 2020 |
| 13394 | Holliday Exploration Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2005 |
| 13395 | Hollimon Oil Corporation | Castroville, TX 78009 | Oil & Gas Operator | Nov 2016 |
| 13396 | Hollingsworth & Assoc | | Oil Operator | Feb 1987 |
| 13397 | Hollis & Kathryn Nichols | Shinglehouse, PA 16748-2112 | Gas Operator | Dec 2015 |
| 13398 | Hollobaugh Paul A | Mayport, PA 16240-1710 | Gas Operator | Dec 2024 |
| 13399 | Holloway David A | Okmulgee, OK 74447-9191 | Oil & Gas Operator | Jun 2025 |
| 13400 | Holloway Oil Company | Austin, TX 78764 | Oil & Gas Operator | Feb 2004 |