| 1301 | Homer Oil Co LLC | Holdenville, OK 74848-3232 | Oil Operator | Sep 2025 |
| 1302 | Homestead Oil Inc | | Oil & Gas Operator | Jun 2014 |
| 1303 | Hominy Consulting, LLC | Canadian, TX 79014 | Oil & Gas Operator | Dec 2025 |
| 1304 | Hon R J Oil & Ga | | Oil Operator | Nov 1990 |
| 1305 | Hondo Drilling Company | Midland, TX 79702 | Oil & Gas Operator | Nov 1996 |
| 1306 | Hondo Oil & Gas | Houston, TX 77042 | Oil & Gas Operator | Oct 1995 |
| 1307 | Hondo Oil & Gas Company | Roswell, NM 88202 | Oil & Gas Operator | Aug 2006 |
| 1308 | Hondo Operating, Inc. | | Oil & Gas Operator | Aug 1997 |
| 1309 | Honeck Oil Company | Austin, TX 78716 | Oil & Gas Operator | Mar 2008 |
| 1310 | Honeck Oil Company, LP | Austin, TX 78716 | Oil & Gas Operator | Dec 2010 |
| 1311 | Honey Oil Co | Wichita, KS 67226 | Oil & Gas Operator | Mar 2009 |
| 1312 | Honey Well, LLC | Lenexa, KS 66219 | Oil Operator | May 2025 |
| 1313 | Honeymon Drilling Company LTD | Oklahoma City, OK 73147 | Oil & Gas Operator | Feb 1995 |
| 1314 | Hood, J. F. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2010 |
| 1315 | Hood, J. Frank, Jr. | Arlington, TX 76006 | Oil & Gas Operator | Dec 2025 |
| 1316 | Hood, Joe B. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 1317 | Hooker Phil Oil Operator | | Oil Operator | Aug 1996 |
| 1318 | Hooks & Hooks | Abilene, TX 79608 | Oil & Gas Operator | Feb 1999 |
| 1319 | Hooks Dwain | Tatums, OK 73487 | Oil & Gas Operator | Aug 2025 |
| 1320 | Hooper & Sons Investments Co.Inc | Tenaha, TX 75974 | Gas Operator | Nov 1997 |
| 1321 | Hooper, DR. Oil & Royalty Co. | Conroe, TX 77304 | Oil & Gas Operator | Sep 1999 |
| 1322 | Hootkins, Seymour G. | Archer City, TX 76351 | Oil & Gas Operator | Apr 1997 |
| 1323 | Hootkins-Smith,La LTD. | | Gas Operator | Jun 1985 |
| 1324 | Hoots Jr, Willard | Martinsville, IN 46151 | Oil Operator | Dec 2023 |
| 1325 | Hoover & Wilson Exp & Prod Inc | Fort Smith, AR 72913-5171 | Gas Operator | Jul 2013 |
| 1326 | Hoover Frank W Dba Cherokee Drilling | Miramar Beach, FL 32550 | Oil & Gas Operator | Dec 2024 |
| 1327 | Hoover Gregory M | Wattsburg, PA 16442-2209 | Gas Operator | Dec 2024 |
| 1328 | Hoover Noble C | | Oil Operator | Nov 1992 |
| 1329 | Hoover Petroleum Company, LLC | Midland, TX 79701 | Oil Operator | Dec 2025 |
| 1330 | Hoover Producing & Operating | Newark, OH 43055 | Oil & Gas Operator | Dec 2001 |
| 1331 | Hopco Operating, Inc. | Stafford, TX 77497 | Oil & Gas Operator | Dec 2016 |
| 1332 | Hopco Resources Inc | Columbus, OH 43065 | Oil & Gas Operator | Dec 2024 |
| 1333 | Hope Company, LLC | Longmont, CO 80502 | Gas Operator | Feb 2012 |
| 1334 | Hope Energy, L.L.C. | Snyder, TX 79549 | Oil & Gas Operator | Dec 2025 |
| 1335 | Hope Gas, Inc. | Richmond, VA 23261 | Oil & Gas Operator | Dec 2010 |
| 1336 | Hope Oil Corporation | | Oil Operator | Sep 2025 |
| 1337 | Hope Oil Inc | Midland, TX 79702 | Oil & Gas Operator | Oct 2021 |
| 1338 | Hope Production, Inc. | Edinburg, TX 78540 | Oil & Gas Operator | Jan 2000 |
| 1339 | Hope'S Windows, Inc. | Jamestown, NY 14702 | Gas Operator | Dec 2024 |
| 1340 | Hopewell Oil & Gas Development Company | Columbus, OH 43228 | Oil & Gas Operator | Dec 2019 |
| 1341 | Hopewell Operating, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2025 |
| 1342 | Hopkins Engineering, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 1996 |
| 1343 | Hopkins, T. M. Operating Co. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2025 |
| 1344 | Hoppe Oil & Gas | | Oil Operator | Nov 1992 |
| 1345 | Hoppe Oil & Gas Co., Inc. | Wichita, KS 67202 | Oil Operator | Jul 1998 |
| 1346 | Hopper Oil Co., Inc. | Winfield, KS 67156 | Oil Operator | Jun 2025 |
| 1347 | Hopper Oil Compa | | Oil Operator | Sep 1988 |
| 1348 | Hopper, Harlan | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 1349 | Hopper, Thornton Co. | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 1350 | Hoppes Helen E | Depew, OK 74028-3428 | Oil & Gas Operator | Apr 2015 |
| 1351 | Horadam, Henry L. | Victoria, TX 77905 | Oil & Gas Operator | Oct 2008 |
| 1352 | Horan, Ken L. | Cross Plains, TX 76443 | Gas Operator | May 2002 |
| 1353 | Horansky Burrell Revocable Trust | Wichita Falls, TX 76309 | Oil Operator | Dec 2025 |
| 1354 | Horany, Ray & Ernest | Olney, TX 76374 | Oil & Gas Operator | May 2002 |
| 1355 | Horizon Barnsdall Energy Part LTD I Osage Only | | Oil Operator | Feb 2012 |
| 1356 | Horizon Energy | Vergas, MN 56587 | Oil & Gas Operator | Dec 2025 |
| 1357 | Horizon Energy Corporation | Sand Fork, WV 26430 | Oil & Gas Operator | Dec 2021 |
| 1358 | Horizon Expl. & Dev. Co., Inc. | | Oil & Gas Operator | Jun 1995 |
| 1359 | Horizon Exploration Company | Houston, TX 77019 | Oil & Gas Operator | Aug 2002 |
| 1360 | Horizon Exploration Services | El Paso, TX 79922 | Oil Operator | Dec 2025 |
| 1361 | Horizon Natural Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2024 |
| 1362 | Horizon Natural Gas, LLC | | Oil & Gas Operator | Dec 2018 |
| 1363 | Horizon Natural Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2019 |
| 1364 | Horizon Oil & Ga | | Oil & Gas Operator | Jan 1992 |
| 1365 | Horizon Oil & Gas Co. | Dallas, TX 75221 | Oil & Gas Operator | Jan 2005 |
| 1366 | Horizon Operating Co. | | Oil & Gas Operator | Dec 1995 |
| 1367 | Horizon Prod. And Operating, LLC | Houston, TX 77019 | Oil & Gas Operator | Dec 2025 |
| 1368 | Horizon Resources Inc | Fort Worth, TX 76101-1978 | Oil & Gas Operator | Jul 2006 |
| 1369 | Horizon Ridge Oil Company | Austin, TX 78738 | Oil Operator | Dec 2025 |
| 1370 | Horizon Well Services, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2025 |
| 1371 | Horizontal Development & Production Inc | Lubbock, TX 79493 | Oil & Gas Operator | Jul 2002 |
| 1372 | Horn Eddie L Dba B & E Investments | Bristow, OK 74010 | Oil & Gas Operator | Aug 2025 |
| 1373 | Horn Energy | Eastland, TX 76448 | Oil & Gas Operator | Dec 2025 |
| 1374 | Horn Oil Company | Bristow, OK 74010 | Oil & Gas Operator | Aug 2025 |
| 1375 | Horn R L & Sons Drilling | | Oil Operator | Jun 1997 |
| 1376 | Horn, Henry L | | Oil Operator | Apr 2009 |
| 1377 | Horn, Tom D. | Pampa, TX 79066 | Gas Operator | Nov 2013 |
| 1378 | Horn, W. J. | Graham, TX 76450 | Oil & Gas Operator | Oct 2004 |
| 1379 | Horne & Moore Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Feb 2001 |
| 1380 | Horner Oil And Gas Production, Inc. | Cameron, WV 26033 | Oil & Gas Operator | Dec 2021 |
| 1381 | Horner Richard R | | Gas Operator | May 1995 |
| 1382 | Horning, Jeremiah | Penn Yan, NY 14527 | Gas Operator | Dec 2024 |
| 1383 | Horseshoe Oil Co | Cromwell, OK 74837 | Oil & Gas Operator | Dec 2021 |
| 1384 | Horseshoe Operating Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 2023 |
| 1385 | Horseshoe Production, LLC | Bryson, TX 76427 | Oil Operator | Dec 2025 |
| 1386 | Horst Energy LLC | Fort Worth, TX 76124 | Oil & Gas Operator | Jun 2019 |
| 1387 | Horst Oil, LLC | Pittsburg, MO 65724 | Oil Operator | Dec 2009 |
| 1388 | Hortin & Huffman Pet Geol | Worthington, OH 43085 | Oil & Gas Operator | Dec 2000 |
| 1389 | Horton & Freeman | | Oil Operator | Apr 1983 |
| 1390 | Horton Mary | Ratliff City, OK 73481 | Oil Operator | May 2020 |
| 1391 | Horton Oil Company | Independence, KS 67301 | Oil & Gas Operator | Jul 2000 |
| 1392 | Horton, Jack | Independence, KS 67301 | Oil & Gas Operator | Aug 2015 |
| 1393 | Horton, John | Sedan, KS 67361 | Oil & Gas Operator | Jun 2025 |
| 1394 | Hosco Operating Inc | Seminole, OK 74868-2447 | Oil & Gas Operator | Aug 2017 |
| 1395 | Hosford Energy Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 1994 |
| 1396 | Hosston Oil Inc. | | Oil Operator | Dec 1993 |
| 1397 | Hostetler Glenn And Kristina Dba Hostetler Enterprises | Morris, OK 74445 | Oil Operator | Aug 2025 |
| 1398 | Hot Rod Oil | Vernal, UT 84078 | Oil & Gas Operator | Oct 2025 |
| 1399 | Hot Springs Resources LTD | Casper, WY 82601 | Oil Operator | Dec 2014 |
| 1400 | Hottel Glenn D | W Salem, OH 44287 | Oil & Gas Operator | Dec 1993 |