| 13101 | Heinrich Enterprises Inc Dba Washington Operations | Reno, OH 45773 | Oil & Gas Operator | Dec 2024 |
| 13102 | Heinrich Enterprises, Inc. | Reno, OH 45773-0305 | Oil & Gas Operator | Dec 2021 |
| 13103 | Heinrich Production Co Inc | Lubbuck, TX 79424 | Oil Operator | Dec 2024 |
| 13104 | Heintz Gas & Oil Company, Inc. | Allegany, NY 14706 | Gas Operator | Dec 2024 |
| 13105 | Heisey Ventures, Inc. | Houston, TX 77019 | Oil & Gas Operator | Feb 2026 |
| 13106 | Helberg Oil Comp | | Oil Operator | Mar 1995 |
| 13107 | Helbing & Podpechan | Clarence, OK 74018 | Oil & Gas Operator | May 1983 |
| 13108 | Helbing & Robert | | Oil & Gas Operator | Feb 1991 |
| 13109 | Held By Producti | | Oil & Gas Operator | Feb 1995 |
| 13110 | Held By Production, Inc. | Houston, TX 77251 | Oil & Gas Operator | May 1996 |
| 13111 | Helemrich & Payne Inc | Iraan, TX 79744 | Oil & Gas Operator | Sep 2002 |
| 13112 | Helena Production Corp | | Oil & Gas Operator | Dec 1991 |
| 13113 | Helena Resources Inc | Lakewood, CO 80215 | Oil & Gas Operator | Oct 2025 |
| 13114 | Helena Resources LLC | Helena, OK 73741 | Oil & Gas Operator | Nov 2025 |
| 13115 | Helios Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 13116 | Helis Oil & Gas Company LLC Estate | New Orleans, LA 70130 | Oil & Gas Operator | Jul 2022 |
| 13117 | Helis Oil & Gas Company, L.L.C. | New Orleans, LA 70130 | Oil & Gas Operator | Oct 2023 |
| 13118 | Helis, William G. Co., LLC, The | New Orleans, LA 70130 | Oil & Gas Operator | Oct 2003 |
| 13119 | Helis,WM.G.,Est., A Partnership | New Orleans, LA 70130 | Oil & Gas Operator | Aug 2003 |
| 13120 | Helke Exploration Company | Oklahoma City, OK 73112-7201 | Oil & Gas Operator | Feb 2000 |
| 13121 | Hellar Drilling | | Oil & Gas Operator | Jan 1994 |
| 13122 | Hellar Drilling Company, Inc. | Wichita, KS 67208 | Oil & Gas Operator | Jan 2009 |
| 13123 | Hellard Elmer J | Sapulpa, OK 74066 | Oil & Gas Operator | Oct 2025 |
| 13124 | Heller Phillip & Charlene | Columbia, MO 65201 | Oil & Gas Operator | Oct 2025 |
| 13125 | Hellifino Operating, LLC | San Antonio, TX 78212 | Oil Operator | Feb 2026 |
| 13126 | Hellman Properties LLC | | Oil & Gas Operator | Nov 2025 |
| 13127 | Hellums, Harold | Cedar Creek, TX 78612 | Oil & Gas Operator | Mar 2008 |
| 13128 | Helm Energy Company | Tulsa, OK 74133 | Oil Operator | Sep 2025 |
| 13129 | Helmcamp, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2002 |
| 13130 | Helmco LTD | Kiefer, OK 74041-0397 | Oil & Gas Operator | Jan 2007 |
| 13131 | Helmco Production Company | Pawhuska, OK 74056 | Oil Operator | Aug 2000 |
| 13132 | Helmer Energy & Stanton Engr. | Tyler, TX 75702 | Oil & Gas Operator | Jun 1998 |
| 13133 | Helmer Oil Corporation | | Oil & Gas Operator | Oct 2025 |
| 13134 | Helmer, Bonnie J | | Oil Operator | Oct 2025 |
| 13135 | Helmerich & Payn | | Oil & Gas Operator | Aug 1995 |
| 13136 | Helmerich & Payne, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Sep 2025 |
| 13137 | Helmhold Oil Incorporated | Wellsville, NY 14895 | Oil Operator | Dec 2024 |
| 13138 | Helms Oil | Brinkhaven, OH 43006 | Oil Operator | Dec 2018 |
| 13139 | Helms Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 13140 | Helo Energy, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2001 |
| 13141 | Helsel, Allan J | South Haven, KS 67140 | Oil Operator | Aug 2025 |
| 13142 | Helton Oil Company | Edmond, OK 73083-7283 | Oil & Gas Operator | Aug 2016 |
| 13143 | Helton Petroleum | Pampa, TX 79066 | Oil & Gas Operator | Feb 2026 |
| 13144 | Helton, Pat A. & Alberta | Allison, TX 79003 | Oil & Gas Operator | Feb 2026 |
| 13145 | Hembree Alva | Oklahoma City, OK 73151-9145 | Oil & Gas Operator | Jun 2016 |
| 13146 | Hembree Brit W | Shawnee, OK 74802-1725 | Oil & Gas Operator | Oct 2025 |
| 13147 | Hembree Oil Production, LLC | Great Bend, KS 67530 | Oil Operator | Sep 2025 |
| 13148 | Hembree Robert F | | Oil Operator | Dec 2009 |
| 13149 | Hemco Development, LLC | Dallas, TX 75201 | Oil & Gas Operator | Nov 2020 |
| 13150 | Hemco Production, L. L. C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2016 |
| 13151 | Hemenger Daniel A | Erie, PA 16510-2035 | Gas Operator | Dec 2024 |
| 13152 | Hemstead Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2001 |
| 13153 | Hemus, Inc. | Bellaire, TX 77401 | Oil & Gas Operator | Sep 1994 |
| 13154 | Henderson & Erickson, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 13155 | Henderson Charles E | Bokoshe, OK 74930 | Gas Operator | Oct 2021 |
| 13156 | Henderson Don Inc | Oklahoma City, OK 73134-1753 | Oil & Gas Operator | Aug 2013 |
| 13157 | Henderson Exploration Company | Tulsa, OK 74120 | Oil & Gas Operator | May 2013 |
| 13158 | Henderson Fred J | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 2025 |
| 13159 | Henderson Natural Res, L.L.C. | Crozet, VA 22932 | Oil & Gas Operator | Feb 2026 |
| 13160 | Henderson Oil & Gas | | Oil Operator | Sep 1990 |
| 13161 | Henderson Pet Corp Of Delaware | | Oil & Gas Operator | Oct 2019 |
| 13162 | Henderson Petroleum Corp | San Angelo, TX 76906 | Oil & Gas Operator | Jul 2013 |
| 13163 | Henderson, Bryan, Co. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2026 |
| 13164 | Henderson, Chris | Pawhuska, OK 74056 | Oil Operator | Dec 2009 |
| 13165 | Henderson, David Malcolm & Georgina Hewlett | Hancock, MD 21750 | Oil Operator | Dec 2023 |
| 13166 | Henderson, Peter Oil Co. | San Angelo, TX 76906 | Oil & Gas Operator | Feb 2020 |
| 13167 | Henderson, Sam F. | Odessa, TX 79760 | Oil & Gas Operator | Nov 2002 |
| 13168 | Henderson, Sam W. | Iowa Park, TX 76367 | Oil & Gas Operator | Jun 2019 |
| 13169 | Hendon WM E. Jr. Rev LVNG Trust | Everett, WA 98208 | Oil & Gas Operator | Feb 2026 |
| 13170 | Hendrickson Lester | Delaware, OK 74027-9715 | Oil Operator | Mar 2015 |
| 13171 | Hendrickson W R | Beggs, OK 74421-2936 | Oil & Gas Operator | Jun 2023 |
| 13172 | Hendrix, John H. Corporation | Midland, TX 79705 | Oil & Gas Operator | Sep 2018 |
| 13173 | Hendry Energy Services | | Oil Operator | Dec 2024 |
| 13174 | Henergy Oil & Gas LLC | | Oil Operator | Jan 2025 |
| 13175 | Henley Operating | Nocona, TX 76255 | Oil & Gas Operator | Feb 2026 |
| 13176 | Henley, VIola F | | Oil Operator | Oct 2025 |
| 13177 | Hennan Resources, Inc. | Great Neck, NY 11021 | Gas Operator | Nov 1997 |
| 13178 | Hennessey Oil & Gas LLC | Hennessey, OK 73742-0212 | Oil & Gas Operator | Sep 2024 |
| 13179 | Hennessy Oil Com | | Oil Operator | Mar 1991 |
| 13180 | Hennig Production Co., Inc. | Tyler, TX 75701 | Oil & Gas Operator | Feb 2026 |
| 13181 | Henrich, Adam Gabriel | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 13182 | Henrich, John W. | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 13183 | Henry And Jane Fong | | Oil Operator | Dec 1989 |
| 13184 | Henry Billy Or Connie | Okemah, OK 74859-6075 | Oil & Gas Operator | Jul 2021 |
| 13185 | Henry Gungoll Operating Inc | Enid, OK 73703 | Oil & Gas Operator | Nov 2025 |
| 13186 | Henry Oil & Gas Inc | Oklahoma City, OK 73127 | Oil & Gas Operator | Jul 2009 |
| 13187 | Henry Patrick K | Chicora, PA 16025-4502 | Oil & Gas Operator | Dec 2024 |
| 13188 | Henry Paul Petroleum, LLC | Pampa, TX 79066 | Oil & Gas Operator | Feb 2026 |
| 13189 | Henry Petroleum Corp. | Midland, TX 79703 | Oil & Gas Operator | Mar 2001 |
| 13190 | Henry Petroleum Inc | Oklahoma City, OK 73162-1757 | Oil & Gas Operator | Sep 2019 |
| 13191 | Henry Petroleum LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Feb 2026 |
| 13192 | Henry Petroleum LP | Midland, TX 79701 | Oil & Gas Operator | Dec 2008 |
| 13193 | Henry Petroleum Of Oklahoma LP | Midland, TX 79703-5000 | Oil & Gas Operator | Feb 2017 |
| 13194 | Henry Production Company, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Oct 2019 |
| 13195 | Henry Rennick | | Oil Operator | Oct 2025 |
| 13196 | Henry Resources LLC | Midland, TX 79703 | Oil & Gas Operator | Dec 2024 |
| 13197 | Henry Sappington Machine & Tool Dba Henry Sappingt | | Oil Operator | Oct 2017 |
| 13198 | Henry W. Agle And Sons, Inc. | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 13199 | Henry Wat Oil Company | Tulsa, OK 74101 | Oil Operator | Jan 2014 |
| 13200 | Henry, J.R. Inc | Brenham, TX 77833 | Oil & Gas Operator | Feb 2026 |