| 9001 | Elk Energy Corporation | Denver, CO 80218 | Oil & Gas Operator | Mar 2008 |
| 9002 | Elk Energy Holdings LLC | Wichita, KS 67226 | Oil & Gas Operator | Jul 2024 |
| 9003 | Elk Exploration Inc | | Oil & Gas Operator | Jul 2001 |
| 9004 | Elk Meadows Resources LLC | Houston, TX 77037 | Oil & Gas Operator | Jan 2021 |
| 9005 | Elk Oil Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2018 |
| 9006 | Elk Oil Company | Overland Park, KS 66212 | Oil & Gas Operator | Sep 2007 |
| 9007 | Elk Oil Enterprises, LLC | Wetmore, KS 66550 | Oil Operator | Dec 2009 |
| 9008 | Elk Operating Services, LLC | Denver, CO 80203 | Oil & Gas Operator | Sep 2024 |
| 9009 | Elk Petroleum Inc | Casper, WY 82601 | Oil & Gas Operator | Aug 2014 |
| 9010 | Elk Production LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2011 |
| 9011 | Elk Production Uintah LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 9012 | Elk Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2011 |
| 9013 | Elk River Resources, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Oct 2023 |
| 9014 | Elk San Juan, LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2014 |
| 9015 | Elk Slough Pipeline Co. | | Oil & Gas Operator | Dec 1999 |
| 9016 | Elkhead Gas & Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 2023 |
| 9017 | Elkhorn Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 1995 |
| 9018 | Elkhound Resources Inc | Wellsville, KS 66092 | Oil Operator | Aug 1998 |
| 9019 | Ellard I W | Bixby, OK 74008-0220 | Oil & Gas Operator | Jan 2007 |
| 9020 | Ellard Oil | Loving, TX 76460 | Oil & Gas Operator | May 2022 |
| 9021 | Ellard, Herman | Graham, TX 76450 | Oil & Gas Operator | Feb 2005 |
| 9022 | Ellbogen John P LTD | Casper, WY 82602 | Oil & Gas Operator | Sep 2024 |
| 9023 | Ellen P Sharp LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2023 |
| 9024 | Ellington Energy, Inc. | Cherry Creek, NY 14723 | Gas Operator | Dec 2023 |
| 9025 | Ellinwood Oil Reclaiming Inc | | Oil Operator | Oct 2009 |
| 9026 | Ellinwood Tank Service, Inc. | Chase, KS 67524 | Oil Operator | Jul 2022 |
| 9027 | Elliott Co Inc | Jeannette, PA 15644-1474 | Gas Operator | Dec 2022 |
| 9028 | Elliott Inc | Roswell, NM 88201 | Oil & Gas Operator | Apr 1962 |
| 9029 | Elliott Oil & Gas Company | The Woodlands, TX 77380 | Oil & Gas Operator | Sep 2006 |
| 9030 | Elliott Oil & Gas Operating Co. | Magnolia, TX 77354 | Oil & Gas Operator | Nov 2024 |
| 9031 | Elliott Oil Co | Roswell, NM 88202 | Oil & Gas Operator | Nov 2001 |
| 9032 | Elliott Oil Company, L.P. | Magnolia, TX 77354 | Oil & Gas Operator | Nov 2024 |
| 9033 | Elliott Phillip | | Oil Operator | Feb 1992 |
| 9034 | Elliott Resources Inc | Ada, OK 74820-9227 | Oil & Gas Operator | Jul 2010 |
| 9035 | Elliott Underground LLC | | Oil Operator | Sep 2024 |
| 9036 | Elliott, Catherine | Waterville, NY 13480 | Gas Operator | Dec 2023 |
| 9037 | Elliott, W E & Elliott, W E Jr | Pikeville, KY 41502 | Gas Operator | Dec 2021 |
| 9038 | Ellis Exploration, Inc. | Tyler, TX 75703 | Oil & Gas Operator | Nov 2024 |
| 9039 | Ellis M. Moore, Et Al | | Oil Operator | Mar 1986 |
| 9040 | Ellis Resources Group Inc | Rhinelander, WI 54501 | Oil Operator | Jul 2024 |
| 9041 | Ellis Rolland | Henryetta, OK 74437-0536 | Oil & Gas Operator | Sep 2018 |
| 9042 | Ellis, Amon | Olney, TX 76374 | Oil & Gas Operator | Aug 2003 |
| 9043 | Ellison Lease Operating | Bridgeport, TX 76426 | Oil & Gas Operator | Nov 2024 |
| 9044 | Ellison, Dewitt, Jr. | Aspermont, TX 79502 | Oil & Gas Operator | Mar 2016 |
| 9045 | Ellithorp Production LLC | Lindsay, OK 73052-5013 | Oil & Gas Operator | Apr 2019 |
| 9046 | Ellora Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Nov 2024 |
| 9047 | Ellora LLC | Boulder, CO 80308 | Oil & Gas Operator | Feb 2010 |
| 9048 | Ellora Operating, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2011 |
| 9049 | Ells Jr Harry A | Englewood, CO 80150 | Gas Operator | Feb 2017 |
| 9050 | Ellstrom Energy Company | Kingwood, TX 77339 | Oil & Gas Operator | Nov 2000 |
| 9051 | Ellsworth Systems, Inc. | Wichita, KS 67202 | Oil & Gas Operator | May 2005 |
| 9052 | Ellsworth, H. P. O&G Properties | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Nov 2024 |
| 9053 | Ellvie Wells LLC | New Franklin, OH 44319 | Oil & Gas Operator | Dec 2023 |
| 9054 | Ellwood Exploration LLC | San Antonio, TX 78217 | Oil Operator | Sep 2024 |
| 9055 | Elm Grove Production, LLC | Dallas, TX 75360 | Oil & Gas Operator | Nov 2024 |
| 9056 | Elm III Operating Company LLC | Edmond, OK 73013 | Oil & Gas Operator | Jul 2024 |
| 9057 | Elm Ridge Exploration Company | Dallas, TX 75243-9362 | Oil & Gas Operator | Jan 2019 |
| 9058 | Elm Ridge Exploration Company LLC | Bloomfield, NM 87413 | Oil & Gas Operator | Nov 2017 |
| 9059 | Elm Ridge Resources Inc | Dallas, TX 75243 | Oil & Gas Operator | Nov 2005 |
| 9060 | Elmer L. Karst Oil, A General Partnership | Russell, KS 67665 | Oil Operator | Jul 2024 |
| 9061 | Elmore Farm | | Oil Operator | Sep 2009 |
| 9062 | Elmore Production Services Inc | | Oil & Gas Operator | Dec 2008 |
| 9063 | Elmore Stanley G | Bartlesville, OK 74006-1741 | Oil & Gas Operator | Sep 2023 |
| 9064 | Elmore, John A. And Patricia R. | Sedan, KS 67361 | Oil Operator | Jul 2024 |
| 9065 | Elms Oil Company | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 9066 | Elmtree Oil Co Inc | Bartlesville, OK 74006-1819 | Oil Operator | May 2021 |
| 9067 | Elmwood Operating LLC | | Oil & Gas Operator | May 2024 |
| 9068 | Elna Oil Co, Inc | Martha, KY 41159 | Oil Operator | Dec 2022 |
| 9069 | Elp Production Company LLC | Dallas, TX 75287 | Oil Operator | Nov 2024 |
| 9070 | Elsaan Energy LLC | Walhonding, OH 43843 | Oil & Gas Operator | Dec 2023 |
| 9071 | Elsbury & Acker | | Oil & Gas Operator | Feb 2003 |
| 9072 | Elsbury & McGrew | | Oil & Gas Operator | Nov 1986 |
| 9073 | Elson Oil Company | Tulsa, OK 74103-4429 | Oil & Gas Operator | Dec 2016 |
| 9074 | Elvera Stiles Trust | Broken Arrow, OK 74011 | Oil & Gas Operator | Jun 2024 |
| 9075 | Elvis Energy, LLC | Philippi, WV 26416 | Gas Operator | Dec 2021 |
| 9076 | Elwell, Mike | Lawrence, KS 66044 | Oil Operator | Dec 2009 |
| 9077 | Elysium Energy, L.L.C. | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
| 9078 | Elysium Jennings, LLC | | Oil & Gas Operator | Jun 2024 |
| 9079 | Em Energy Ohio LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Sep 2019 |
| 9080 | Em Energy Pa LLC | Canonsburg, PA 15317-5860 | Oil & Gas Operator | Jun 2020 |
| 9081 | Em-Gee Oil Account | Jacksonville, TX 75766 | Oil & Gas Operator | Sep 1995 |
| 9082 | Emax Oil Company | Charlottesville, VA 22903-4973 | Oil & Gas Operator | Dec 2016 |
| 9083 | Embassy Energy Inc. | Akron, OH 44333-8357 | Oil & Gas Operator | Dec 2023 |
| 9084 | Embassy Oil Company | Highland VLG, TX 75077 | Oil & Gas Operator | Nov 2024 |
| 9085 | Embassy Well Service, LLC | Carrollton, TX 75011 | Oil & Gas Operator | Nov 2024 |
| 9086 | Embrey Oil Production Co. | Sutherlnd SPG, TX 78161 | Oil & Gas Operator | Oct 2021 |
| 9087 | Emc Energies Inc | Casper, WY 82604 | Oil Operator | May 1989 |
| 9088 | Emc Energy | | Oil & Gas Operator | Jun 1985 |
| 9089 | Emc Exploration Company Inc | Oklahoma City, OK 73103-3775 | Oil & Gas Operator | Jul 2007 |
| 9090 | Emc Properties, LLC | Clinton, MO 64735 | Oil Operator | Dec 2019 |
| 9091 | Emco Energy, Inc. | Fairfax, VA 22031 | Gas Operator | Dec 2018 |
| 9092 | Emco Oil & Gas | Graham, TX 76450 | Oil & Gas Operator | Dec 1995 |
| 9093 | Emco Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2002 |
| 9094 | Emco Operating Company, Inc | | Oil Operator | Jul 2011 |
| 9095 | Emde & McNeil | Carney, OK 74832 | Oil & Gas Operator | Nov 1998 |
| 9096 | Eme Wyoming LLC | Lakewood, CO 80401 | Oil & Gas Operator | Sep 2024 |
| 9097 | Emep Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2024 |
| 9098 | Emerald Bay Energy, Inc. | San Antonio, TX 78230 | Oil Operator | Nov 2024 |
| 9099 | Emerald Gas Operating Co | Durango, CO 81301 | Gas Operator | Aug 1996 |
| 9100 | Emerald Gather And Trans, LLC | Cypress, TX 77429 | Oil & Gas Operator | Nov 2024 |