| 25001 | Rollert Co., Inc., The | Luling, TX 78648 | Oil & Gas Operator | Nov 2000 |
| 25002 | Rolling Meadows Oil & Gas Development, LLC | Centerville, KS 66014 | Oil Operator | Jul 2024 |
| 25003 | Rollo Resources, LLC | Granbury, TX 76049 | Gas Operator | Nov 2024 |
| 25004 | Roma Oil & Gas | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1999 |
| 25005 | Roma Oil And Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Nov 2024 |
| 25006 | Romac Oil Company, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | Nov 2024 |
| 25007 | Romack Production Company | Granville, OH 43023 | Oil Operator | Mar 2018 |
| 25008 | Roman Well Services Inc | Lakeville, OH 44638 | Oil & Gas Operator | Dec 2023 |
| 25009 | Romara Energy Inc. | | Oil & Gas Operator | Dec 2017 |
| 25010 | Romax Corporation | Ardmore, OK 73401-8882 | Oil & Gas Operator | Feb 2022 |
| 25011 | Romaxsco Exploration Co., Inc. | | Oil & Gas Operator | Aug 1993 |
| 25012 | Romco | Muenster, TX 76252 | Oil & Gas Operator | Mar 2015 |
| 25013 | Rome Oil, LLC | Lakewood, CO 80232 | Oil Operator | Jul 2024 |
| 25014 | Romine Oil & Gas LTD | Shawnee, OK 74802-3425 | Oil & Gas Operator | Jan 2013 |
| 25015 | Romine Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 25016 | Romines & Warner | Pampa, TX 79065 | Oil & Gas Operator | Jan 2002 |
| 25017 | Romines Operating Group | Pampa, TX 79066 | Oil & Gas Operator | Nov 2022 |
| 25018 | Rominger, R.L. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jan 2015 |
| 25019 | Roms Co., Inc. | | Oil Operator | Jun 1983 |
| 25020 | Ron & Dan'S Oil LTD | Barnsdall, OK 74002-0628 | Oil & Gas Operator | May 2011 |
| 25021 | Ron Brooks Corp | | Oil Operator | Sep 1995 |
| 25022 | Ron Knott & Associates,Inc. | | Oil & Gas Operator | Aug 1989 |
| 25023 | Ron'S Oil Oper I | | Oil Operator | Nov 1994 |
| 25024 | Ron'S Oil Operations Inc | Penokee, KS 67659 | Oil Operator | Dec 2018 |
| 25025 | Ron-Bob Oil LLC | Neosho Falls, KS 66758 | Oil Operator | Jul 2024 |
| 25026 | Ronadero Company Inc | Roswell, NM BAD ADDR | Oil & Gas Operator | Dec 1996 |
| 25027 | Ronald A Gibson & Assoc Inc | Avon Lake, OH 44012 | Oil & Gas Operator | Dec 2023 |
| 25028 | Ronald E. Hall | | Oil Operator | Nov 1991 |
| 25029 | Ronald J Nelson | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2006 |
| 25030 | Ronald L Hicks | Aztec, NM 87410 | Oil Operator | Sep 2009 |
| 25031 | Ronald L Nick | Lucinda, PA 16235-3006 | Gas Operator | Dec 2023 |
| 25032 | Ronald M. Sannes | | Oil & Gas Operator | Oct 2016 |
| 25033 | Ronald Russ Prater, Inc. | Eastborough, KS 67207 | Gas Operator | May 2024 |
| 25034 | Ronan Company | Springfield, MO 65704 | Oil & Gas Operator | Aug 2013 |
| 25035 | Ronco Energy Resources Inc | Norman, OK 73072 | Oil & Gas Operator | Apr 2015 |
| 25036 | Ronco Incorporat | | Oil Operator | Sep 1988 |
| 25037 | Ronde Operating, LLC | Houston, TX 77006 | Oil & Gas Operator | Mar 2021 |
| 25038 | Rongey Ira E | Sapulpa, OK 74066-9317 | Oil & Gas Operator | May 2013 |
| 25039 | Rongey Oil | Jenks, OK 74037-3621 | Oil & Gas Operator | Jan 2013 |
| 25040 | Ronmar Engineering & Expl Inc | Ada, OK 74820-1402 | Oil Operator | Aug 2013 |
| 25041 | Ronning Gas And Oil LLC | Mesa, AZ 85203 | Oil & Gas Operator | Nov 2024 |
| 25042 | Ronny N. Davis | | Oil Operator | Jul 2024 |
| 25043 | Roof Carl | Indiana, PA 15701 | Gas Operator | Dec 2023 |
| 25044 | Rookstool, William A. | Edmond, OK 73034 | Gas Operator | Jan 1999 |
| 25045 | Roome Exploration Company | Bartlett, TX 76511 | Oil & Gas Operator | Mar 2008 |
| 25046 | Roome Oil Co. | Bartlett, TX 76511 | Oil & Gas Operator | Nov 2024 |
| 25047 | Roon Energy, Inc. | Dickinson, TX 77539 | Oil Operator | Nov 2024 |
| 25048 | Roosevelt Operating Co. | | Oil Operator | Sep 2023 |
| 25049 | Rooster Petroleum, LLC | | Oil & Gas Operator | Feb 2011 |
| 25050 | Rooster Production, LLC | Oil City, LA 71061 | Oil Operator | Nov 2024 |
| 25051 | Roosth & Genecov Production Co. | Tyler, TX 75710 | Oil & Gas Operator | Aug 2003 |
| 25052 | Roosth Production Co. | Tyler, TX 75711 | Oil & Gas Operator | Nov 2024 |
| 25053 | Root W C | Kellyville, OK 74039 | Oil & Gas Operator | Jan 2021 |
| 25054 | Ropa Exploration Corp. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2011 |
| 25055 | Ropar Operating Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2024 |
| 25056 | Roppolo Petroleum Co. | | Oil & Gas Operator | Jan 2000 |
| 25057 | Rorico Oil Company | Argyle, TX 76226 | Oil & Gas Operator | Nov 2024 |
| 25058 | Roring Arthur | Ratliff City, OK 73481 | Oil Operator | Aug 2024 |
| 25059 | Roring Jr Roy W | Duncan, OK 73533-3048 | Oil & Gas Operator | Aug 2022 |
| 25060 | Roring Roy W | Ardmore, OK 73401 | Oil & Gas Operator | Dec 1998 |
| 25061 | Roring Steven A | Ratliff City, OK 73481-0206 | Oil Operator | Feb 2018 |
| 25062 | Rosa Petroleum | Evansville, WY 82636 | Oil Operator | Dec 1995 |
| 25063 | Rosamond Drilling Co., Inc. | | Gas Operator | Nov 1984 |
| 25064 | Rosbottom Petroleum | | Oil & Gas Operator | Aug 1988 |
| 25065 | Rosbottom Production Corp | Shreveport, LA 71134 | Oil & Gas Operator | Dec 2017 |
| 25066 | Roscoe Gas & Oil Co | Dover, OH 44622 | Oil & Gas Operator | Dec 1991 |
| 25067 | Rose City Resources, LLC | Tyler, TX 75703 | Oil & Gas Operator | Nov 2024 |
| 25068 | Rose Dan And Bill | Henryetta, OK 74437-1450 | Oil & Gas Operator | Aug 2024 |
| 25069 | Rose David | | Oil & Gas Operator | Jul 1995 |
| 25070 | Rose Exploration, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Feb 2002 |
| 25071 | Rose Katherine Stone | | Oil & Gas Operator | Oct 2024 |
| 25072 | Rose Operating Company | Tulsa, OK 74101-2391 | Oil & Gas Operator | Dec 2014 |
| 25073 | Rose Pass Mines, Inc. | | Oil Operator | Oct 1982 |
| 25074 | Rose Petroleum (Utah) LLC | Annapolis, MD 21401 | Oil & Gas Operator | Oct 2024 |
| 25075 | Rose Petroleum Corp | Oklahoma City, OK 73146 | Oil & Gas Operator | Feb 2015 |
| 25076 | Rose Rock Resources Inc | Wagoner, OK 74467-8362 | Oil & Gas Operator | Aug 2024 |
| 25077 | Rose, Lonnie | Troy, WV 26443 | Gas Operator | Dec 2021 |
| 25078 | Rose, Verl | Spring Creek, NV 89815 | Oil & Gas Operator | Feb 2011 |
| 25079 | Roseclare Oil Co | | Oil Operator | Dec 2016 |
| 25080 | Rosehill Operating Company, LLC | Houston, TX 77084 | Oil & Gas Operator | Sep 2021 |
| 25081 | Rosekrans Janet A Dba J Oil Co | | Oil & Gas Operator | Jan 2003 |
| 25082 | Rosel Energy, Inc. | Liberal, KS 67901 | Oil & Gas Operator | Jul 2004 |
| 25083 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 25084 | Rosemain 031 LLC | | Oil & Gas Operator | Aug 2024 |
| 25085 | Rosenthal Henry & Co | | Oil Operator | Feb 1994 |
| 25086 | Rosenthal, Stanley H. | Bay City, TX 77404 | Oil & Gas Operator | Dec 2020 |
| 25087 | Rosestone Operating Company, LLC | | Oil & Gas Operator | May 2024 |
| 25088 | Rosetta Energy Partners, L P | Dallas, TX 75219 | Oil & Gas Operator | Jul 2009 |
| 25089 | Rosetta Resources Operating LP | San Antonio, TX 78216 | Oil & Gas Operator | Nov 2024 |
| 25090 | Rosewood Resources (HPC), Inc. | | Gas Operator | Dec 1984 |
| 25091 | Rosewood Resources (Poc), Inc. | | Oil & Gas Operator | Dec 1984 |
| 25092 | Rosewood Resources, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2024 |
| 25093 | Roskee, Inc | | Oil Operator | Dec 2022 |
| 25094 | Roskydal, Laverne | La Vernia, TX 78121 | Oil Operator | Nov 2024 |
| 25095 | Rosner, S. | San Antonio, TX 78216 | Oil & Gas Operator | Aug 1996 |
| 25096 | Ross & Glenn Petroleum Inc. | | Oil & Gas Operator | Aug 1984 |
| 25097 | Ross & Wharton Gas Co Inc | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 25098 | Ross Bobby L | Okmulgee, OK 74447-8802 | Oil & Gas Operator | Apr 2020 |
| 25099 | Ross Curtis | Ada, OK 74820-1354 | Oil & Gas Operator | Feb 2012 |
| 25100 | Ross Engineering, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Nov 2024 |