| 5001 | Roring Steven A | Ratliff City, OK 73481-0206 | Oil Operator | Feb 2018 |
| 5002 | Rose Dan And Bill | Henryetta, OK 74437 | Oil & Gas Operator | Jan 2026 |
| 5003 | Rose Operating Company | Tulsa, OK 74101-2391 | Oil & Gas Operator | Dec 2014 |
| 5004 | Rose Petroleum Corp | Oklahoma City, OK 73146 | Oil & Gas Operator | Feb 2015 |
| 5005 | Rose Rock Resources Inc | Wagoner, OK 74467-8362 | Oil & Gas Operator | Jan 2026 |
| 5006 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 5007 | Rosenthal Henry & Co | | Oil Operator | Feb 1994 |
| 5008 | Rosetta Resources Operating LP | San Antonio, TX 78216 | Oil & Gas Operator | May 2026 |
| 5009 | Rosewood Resources Inc | Dallas, TX 75201 | Oil & Gas Operator | May 2026 |
| 5010 | Ross Bobby L | Okmulgee, OK 74447-8802 | Oil & Gas Operator | Apr 2020 |
| 5011 | Ross Curtis | Ada, OK 74820-1354 | Oil & Gas Operator | Feb 2012 |
| 5012 | Roth Gary E | Tonkawa, OK 74653-2033 | Oil & Gas Operator | Jan 2020 |
| 5013 | Rougeot Oil & Gas Corp | Sperry, OK 74073 | Oil & Gas Operator | Jan 2026 |
| 5014 | Roulston Pat | Konawa, OK 74849-4020 | Oil Operator | Feb 2026 |
| 5015 | Roundup Oil LLC | Springer, OK 73458 | Oil & Gas Operator | Feb 2026 |
| 5016 | Rountree Productions LLC | | Oil Operator | Feb 2026 |
| 5017 | Rover Operating, LLC | Chicago, IL 60606 | Oil & Gas Operator | Jan 2026 |
| 5018 | Rowe Energy | Beggs, OK 74421-0240 | Oil & Gas Operator | Mar 2015 |
| 5019 | Rowe Stephen Oil Properties LLC | Hunt, TX 78024 | Oil & Gas Operator | Apr 2020 |
| 5020 | Rox Exploration Inc | Norman, OK 73069-6301 | Oil & Gas Operator | Feb 2026 |
| 5021 | Roxanna Oil Company | Oklahoma City, OK 73120-2717 | Oil Operator | Aug 2016 |
| 5022 | Roy G Oil Company | Drumright, OK 74030-1236 | Oil & Gas Operator | Oct 1995 |
| 5023 | Roy L Ashton Oil & Gas Production Inc | Sapulpa, OK 74066 | Oil Operator | Jan 2026 |
| 5024 | Royal Drilling Inc | Russell, KS 67665 | Oil Operator | Jan 2026 |
| 5025 | Royal Energy Resources LTD | Denver, CO 80221 | Oil & Gas Operator | May 2013 |
| 5026 | Royal Oaks Petroleum Corp | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 2001 |
| 5027 | Royal Oil & Gas Corp. | Indiana, PA 15701 | Oil & Gas Operator | Apr 2014 |
| 5028 | Royal Petroleum | Baytown, TX 77521 | Oil & Gas Operator | Aug 2003 |
| 5029 | Royal Petroleum Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jan 2025 |
| 5030 | Royale Energy Inc | San Diego, CA 92108-4518 | Oil & Gas Operator | Mar 2026 |
| 5031 | Royalty Energy Development LLC | Edmond, OK 73003 | Oil & Gas Operator | Feb 2026 |
| 5032 | Royalty Petroleum Company | Oklahoma City, OK 73120 | Gas Operator | Feb 2002 |
| 5033 | Roye Realty & Developing Inc | Stigler, OK 74462-0148 | Gas Operator | Dec 2004 |
| 5034 | Rozen H H | | Oil Operator | Aug 2022 |
| 5035 | Rpa Energy LLC | Ada, OK 74820 | Oil Operator | Jan 2026 |
| 5036 | RR Oil Well Operations LLC | Ringwood, OK 73768 | Oil & Gas Operator | Feb 2026 |
| 5037 | RTB Oil Inc | Crescent, OK 73028-0686 | Oil Operator | May 2016 |
| 5038 | RTC Resources, LLP | Weatherford, OK 73096 | Oil & Gas Operator | May 2026 |
| 5039 | RTD Inc | Bartlesville, OK 74006 | Oil Operator | Jan 1995 |
| 5040 | Rue Johnny B | Duncan, OK 73533-2019 | Oil & Gas Operator | Oct 2025 |
| 5041 | Ruh Oil Company | Collinsville, OK 74021 | Oil & Gas Operator | Jan 2026 |
| 5042 | Rumble Energy LLC | Skiatook, OK 74070 | Oil & Gas Operator | May 2026 |
| 5043 | Rumley Robert A & Associates | Tulsa, OK 74135-1907 | Oil Operator | Feb 2026 |
| 5044 | Rupe Oil Company Inc | Wichita, KS 67278 | Oil & Gas Operator | Jan 2026 |
| 5045 | Rush Creek Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | May 2026 |
| 5046 | Rush-Andrus Engineering | Royse City, TX 75189-1210 | Oil & Gas Operator | Feb 2022 |
| 5047 | Russell Carl G | Coweta, OK 74429 | Oil & Gas Operator | Mar 2015 |
| 5048 | Russell D Meloy Oil & Gas Co | Enid, OK 73703-1623 | Oil & Gas Operator | Feb 2026 |
| 5049 | Russell Oil Company | Haskell, OK 74436 | Oil & Gas Operator | Apr 2014 |
| 5050 | Russell, John R | | Oil Operator | Mar 2025 |
| 5051 | Rust Oil Corp. | Fort Worth, TX 76121 | Oil & Gas Operator | May 2026 |
| 5052 | Rustler Energy LLC | Lindsay, OK 73052 | Oil & Gas Operator | Jan 2026 |
| 5053 | RW Oil & Gas LLC | Lamont, OK 74643 | Oil & Gas Operator | Feb 2026 |
| 5054 | Rwit Company Inc | Tulsa, OK 74131-4255 | Oil & Gas Operator | Jul 2018 |
| 5055 | Ry-Co Petroleum | Wann, OK 74083 | Oil & Gas Operator | Feb 2017 |
| 5056 | Ryan Petroleum Corp | Oklahoma City, OK 73102-9024 | Oil & Gas Operator | Aug 1994 |
| 5057 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |
| 5058 | S & C Resources Inc | Cleveland, OK 74020 | Oil Operator | May 2025 |
| 5059 | S & G Operating LLC | McLoud, OK 74851 | Oil & Gas Operator | Feb 2026 |
| 5060 | S & H Tank Service Of Okla | Lindsay, OK 73052 | Oil & Gas Operator | Mar 2017 |
| 5061 | S & J Oil Company | Ellinwood, KS 67526 | Oil Operator | Jun 2000 |
| 5062 | S & J Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2015 |
| 5063 | S & K Oil Company | Tulsa, OK 74101 | Oil & Gas Operator | Jul 1994 |
| 5064 | S & M Production Inc | Pawnee, OK 74058 | Oil & Gas Operator | Aug 2023 |
| 5065 | S & S Energy | Englewood, CO 80112 | Oil & Gas Operator | Mar 2015 |
| 5066 | S & S Oil & Gas Corporation | Okemah, OK 74859-0659 | Oil & Gas Operator | Sep 2014 |
| 5067 | S & S Oil & Gas LLC | Skiatook, OK 74070 | Oil & Gas Operator | Jul 2016 |
| 5068 | S & S Oil Company | Electra, TX 76360 | Oil & Gas Operator | May 2026 |
| 5069 | S & S Production Company | Addison, TX 75001 | Oil Operator | Jul 2024 |
| 5070 | S & S Star Operating, LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Mar 2026 |
| 5071 | S & T SWD LLC | Clinton, OK 73601-3130 | Oil Operator | Feb 2017 |
| 5072 | S & W Engine Supply | Oklahoma City, OK 73107 | Oil Operator | Jun 2003 |
| 5073 | S & W Engine Supply Inc | Oklahoma City, OK 73143 | Oil Operator | Jan 2000 |
| 5074 | S & W Transports Inc | Velma, OK 73491 | Oil Operator | Jan 2026 |
| 5075 | S A C Operating Inc | Woodward, OK 73802-1749 | Oil & Gas Operator | Jan 1999 |
| 5076 | S H Production LLC | Tulsa, OK 74130-1418 | Oil & Gas Operator | Feb 2026 |
| 5077 | S J Murphy Oil And Gas Inc | | Oil & Gas Operator | Feb 2026 |
| 5078 | S M Brothers Investments LLC | Denver, CO 80210-6059 | Oil Operator | Dec 2025 |
| 5079 | S N D Energy Company, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | May 2026 |
| 5080 | S O S Recovery Inc | Enid, OK 73703-2403 | Oil & Gas Operator | Jul 2023 |
| 5081 | S R W Oil | Laverne, OK 73848 | Oil & Gas Operator | Sep 2025 |
| 5082 | S T Industries Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 2011 |
| 5083 | S/H Petroleum Corporation | Hennessey, OK 73742-0477 | Oil & Gas Operator | Feb 2016 |
| 5084 | Sabco Operating Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2018 |
| 5085 | Saber Industries LP | Dallas, TX 75230 | Oil Operator | Dec 2024 |
| 5086 | Sabine Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | May 2026 |
| 5087 | Sabine Oil & Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2017 |
| 5088 | Sabos George U | Tulsa, OK 74170 | Oil & Gas Operator | Jan 2013 |
| 5089 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2026 |
| 5090 | Sac & Fox Nation | | Oil & Gas Operator | Jul 2025 |
| 5091 | Safe Earth Management Inc | | Oil Operator | Nov 2021 |
| 5092 | Safe Earth Management LLC | Hammon, OK 73650 | Oil Operator | Nov 2025 |
| 5093 | Safire Resources LLC (Osage Only) | | Oil & Gas Operator | Feb 2026 |
| 5094 | Sage Drilling Co Inc | Wichita, KS 67202 | Oil & Gas Operator | Nov 1998 |
| 5095 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | May 2026 |
| 5096 | Sage NR Ok LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2026 |
| 5097 | Sagely Floyd E Properties LTD | Fort Smith, AR 72917-0308 | Gas Operator | Jan 2015 |
| 5098 | Saiber Michael L & Lora L | Saxonburg, PA 16056 | Oil Operator | Mar 1997 |
| 5099 | Sajac Energy Company LLC | Duncan, OK 73533 | Oil & Gas Operator | Jan 2026 |
| 5100 | Sallee Oil Corporation | Collinsville, OK 74021 | Oil & Gas Operator | Feb 2026 |