| 1 | S & J Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2015 |
| 2 | S & M Production Inc | Pawnee, OK 74058 | Oil & Gas Operator | Aug 2023 |
| 3 | S & S Oil & Gas LLC | Skiatook, OK 74070 | Oil & Gas Operator | Jul 2016 |
| 4 | S J Murphy Oil And Gas Inc | | Oil & Gas Operator | Feb 2025 |
| 5 | Safire Resources LLC (Osage Only) | | Oil & Gas Operator | Feb 2025 |
| 6 | Sallee Oil Corporation | Collinsville, OK 74021 | Oil & Gas Operator | Mar 2025 |
| 7 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 8 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2025 |
| 9 | Sand Boy Production Company | Bartlesville, OK 74003-9273 | Oil & Gas Operator | Jan 2025 |
| 10 | Sand Springs Oil & Gas Co. | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2025 |
| 11 | Santa Fe Minerals, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2013 |
| 12 | Santa Fe-Andover Oil Co | Tulsa, OK 74172 | Oil & Gas Operator | Sep 2000 |
| 13 | Schroeder, Donald C | | Oil & Gas Operator | Jan 2025 |
| 14 | Schuler Jr Chris C | Cleveland, OK 74020 | Oil Operator | Aug 2013 |
| 15 | Schuler Oil Properties LLC | Cleveland, OK 74020 | Oil Operator | Feb 2025 |
| 16 | Scissortail Energy LLC | Tulsa, OK 74137-3644 | Oil & Gas Operator | Feb 2015 |
| 17 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Jun 2025 |
| 18 | Selby Larry Monroe | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2020 |
| 19 | Sell Drilling LLC | | Oil Operator | Feb 2011 |
| 20 | Sell Well Servicing Company Osage Only | | Oil & Gas Operator | Nov 2019 |
| 21 | Sell, David E | | Oil Operator | Feb 2025 |
| 22 | Sellers Jack B Estate Of | Cleveland, OK 74020 | Oil & Gas Operator | Feb 2025 |
| 23 | Senax Inc | Tulsa, OK 74105-2206 | Oil & Gas Operator | Feb 2025 |
| 24 | Service Clearing Corp | Dallas, TX 75229 | Oil & Gas Operator | Jun 2025 |
| 25 | Service Drilling Co. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 1998 |
| 26 | Service Drilling Co., L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2003 |
| 27 | Shamrock Operating Company LLC | Cleveland, OK 74020 | Oil Operator | Aug 2022 |
| 28 | Shamrock Well Operations LLC | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | Mar 2025 |
| 29 | Sharp Anthony G | Shawnee, OK 74802-1701 | Oil & Gas Operator | Jul 2003 |
| 30 | Sheets George M & Judith A | Tonkawa, OK 74653 | Oil & Gas Operator | Feb 2025 |
| 31 | Shelton Alec & Glenda | Kiefer, OK 74041 | Oil & Gas Operator | Jan 2025 |
| 32 | Short Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Feb 2025 |
| 33 | Silberman A & M Oil | Oklahoma City, OK 73122-3096 | Oil & Gas Operator | Apr 2014 |
| 34 | Silent Stone Energy LLC | | Oil & Gas Operator | Feb 2025 |
| 35 | Simmons Evelyn B-Per Represent | Edmond, OK 73083-3610 | Oil & Gas Operator | Aug 1996 |
| 36 | Siosi Oil & Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2013 |
| 37 | Skull Creek Oil & Gas LLC | | Oil Operator | Feb 2025 |
| 38 | Slinkard, Roberta S | | Oil Operator | Jan 2025 |
| 39 | Slone, VIctor R | | Oil Operator | Apr 2024 |
| 40 | SM Oil & Gas Inc | Skiatook, OK 74070 | Oil & Gas Operator | Feb 2025 |
| 41 | Smith & Smith Petroleum Corp | | Oil & Gas Operator | Jan 2025 |
| 42 | Smith Bradley D & Paul C | Pawhuska, OK 74056 | Oil Operator | Dec 2024 |
| 43 | Smith C W & Associates Inc | Oklahoma City, OK 73178-0105 | Oil & Gas Operator | Aug 2013 |
| 44 | Smith Doug | Tulsa, OK 74107 | Oil & Gas Operator | Feb 2016 |
| 45 | Smith Petroleum LLC | Barnsdall, OK 74002-0134 | Oil Operator | Feb 2025 |
| 46 | Smith, William M | | Oil & Gas Operator | Feb 2025 |
| 47 | Sneed Drilling Company | Cleveland, OK 74020 | Oil & Gas Operator | Feb 2025 |
| 48 | Sneed William A Bill | Cleveland, OK 74020-1007 | Oil & Gas Operator | Feb 2025 |
| 49 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
| 50 | Sooner Pipe & Supply Corp | | Oil & Gas Operator | Nov 2004 |
| 51 | Southland Energy Corporation | Houston, TX 77060 | Oil & Gas Operator | Aug 2022 |
| 52 | Sparks Greg | Afton, OK 74331 | Oil & Gas Operator | Feb 2025 |
| 53 | Sparks Resources Inc | Bristow, OK 74010 | Oil & Gas Operator | Mar 2025 |
| 54 | Spears Terry | Osage, OK 74054 | Oil Operator | Oct 2024 |
| 55 | Spencer Oil Company | Borger, TX 79007 | Oil & Gas Operator | Feb 2025 |
| 56 | Spess Oil Company Inc | Cleveland, OK 74020-4617 | Oil & Gas Operator | Mar 2025 |
| 57 | Spurgeon William Allan | Nowata, OK 74048-9713 | Oil Operator | Feb 2010 |
| 58 | Spurgeon William C & Tammy D | Hominy, OK 74035 | Oil & Gas Operator | Feb 2025 |
| 59 | SRW Operating LLC | Duncan, OK 73534-2087 | Oil & Gas Operator | Sep 2014 |
| 60 | Staats & Martin | | Oil Operator | Aug 2013 |
| 61 | Staats, William N | | Oil & Gas Operator | Feb 2025 |
| 62 | Stanton Leo F & Leo H | Wynona, OK 74084 | Oil & Gas Operator | Jun 1999 |
| 63 | Stanton, Joni R | | Oil Operator | Feb 2025 |
| 64 | Sterling Oil Of Okla Inc | Tulsa, OK 74170-2163 | Oil & Gas Operator | Nov 2006 |
| 65 | Stevenson Oil Company | Lovington, NM 88260 | Oil & Gas Operator | Mar 2025 |
| 66 | Stidham Bob And Alice F | Sperry, OK 74073 | Oil Operator | Jan 2025 |
| 67 | Sting Exploration Company | Tulsa, OK 74120 | Oil Operator | Sep 2004 |
| 68 | STL Oil & Gas LLC | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2016 |
| 69 | Stoneridge Oil Inc | Ponca City, OK 74601-1600 | Oil & Gas Operator | Jan 2001 |
| 70 | Storck Omer | Tulsa, OK 74105 | Oil Operator | Apr 1997 |
| 71 | Storm Exploration Inc | Skiatook, OK 74070-1014 | Oil & Gas Operator | Jan 2013 |
| 72 | Strike Axe Oil And Gas Corporation | | Oil & Gas Operator | Mar 2021 |
| 73 | Sullivan & Co. | Tulsa, OK 74114 | Oil & Gas Operator | May 2022 |
| 74 | Sullivan And Company LLC | Tulsa, OK 74119 | Oil & Gas Operator | Feb 2025 |
| 75 | Superior Companies Inc | Bartlesville, OK 74003-2621 | Oil & Gas Operator | May 2013 |
| 76 | Superior Oil & Gas LLC | Ringwood, OK 73768-9658 | Oil & Gas Operator | Mar 2025 |
| 77 | Swadley Et Al | Holdenville, OK 74848-0794 | Oil & Gas Operator | Nov 2014 |
| 78 | Swain, Randall R | | Oil Operator | Aug 2000 |
| 79 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 80 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Feb 2025 |