| 3901 | Schlobohm Starr | | Oil Operator | Dec 1996 |
| 3902 | Schlobohm, Starr F. | Wolfeboro, NH 03894 | Oil Operator | Jul 2004 |
| 3903 | Schlotterbeck Ir | | Oil Operator | Nov 1990 |
| 3904 | Schmeid Ranch, LLC | Hays, KS 67601 | Oil Operator | Jun 2024 |
| 3905 | Schmidt Construction Services LLC | | Oil Operator | Nov 2024 |
| 3906 | Schmidt Kermit O | | Oil & Gas Operator | Sep 1995 |
| 3907 | Schmidt, Kermit | | Oil & Gas Operator | Dec 2009 |
| 3908 | Schmidt, Norman D. | Galva, KS 67443 | Gas Operator | Oct 1997 |
| 3909 | Schmidt, Terry D. | McPherson, KS 67460 | Oil Operator | Sep 2023 |
| 3910 | Schmidt, Tracy | McPherson, KS 67460 | Oil Operator | Dec 2024 |
| 3911 | Schmitt Carmen I | | Oil Operator | Dec 1996 |
| 3912 | Schneider Oil Co | | Oil Operator | Oct 1988 |
| 3913 | Schneltz Oil Com | | Oil Operator | May 1992 |
| 3914 | School Creek Corporation | Winfield, KS 67156 | Oil Operator | Jan 2000 |
| 3915 | Schrag Oil Co | | Oil & Gas Operator | Jun 2004 |
| 3916 | Schreiber Oil Co. | | Oil Operator | Dec 2009 |
| 3917 | Schuetz, Edna, Ed & Ronald(Deceased) | Coffeyville, KS 67337 | Oil Operator | Nov 2011 |
| 3918 | Schulein Company LLC | Denver, CO 80246 | Oil & Gas Operator | Dec 2024 |
| 3919 | Schulein Robert | | Oil & Gas Operator | Dec 1995 |
| 3920 | Schulte Oil | Garnett, KS 66032 | Oil Operator | Mar 2022 |
| 3921 | Schulte Oil - C | | Oil Operator | Dec 1989 |
| 3922 | Schulz Oil & Gas, Inc. | Canton, KS 67428 | Oil & Gas Operator | Dec 2024 |
| 3923 | Schulz Roger A | | Oil & Gas Operator | Dec 1996 |
| 3924 | Schwertfeger, Donald E. Oil | Preston, KS 67569 | Oil Operator | Jan 1999 |
| 3925 | Schwien Tank & Lease Service Inc | Bazine, KS 67516 | Oil Operator | May 2000 |
| 3926 | Scimitar Resc Li | | Oil Operator | Oct 1982 |
| 3927 | Scott Services LLC | Plainville, KS 67663 | Oil Operator | Dec 2024 |
| 3928 | Scott'S Production, LLC | Roxbury, KS 67476 | Oil Operator | Dec 2024 |
| 3929 | Scott'S Well Service Inc | Roxbury, KS 67476 | Oil Operator | Nov 2012 |
| 3930 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2025 |
| 3931 | SCZ Resources, LLC | Houston, TX 77055 | Oil Operator | Dec 2024 |
| 3932 | Sdoco, LLC | Highlands Ranch, CO 80129 | Oil Operator | Dec 2024 |
| 3933 | Seagull Operatin | | Oil & Gas Operator | Jul 1995 |
| 3934 | Seagull Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2025 |
| 3935 | Sedona Oil & Gas Corporation | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 3936 | See Oil | | Oil Operator | Dec 2024 |
| 3937 | Seed Group/Aa Drilling | | Oil Operator | Oct 2009 |
| 3938 | Seeker, LLC | Newkirk, OK 74647 | Oil & Gas Operator | Nov 2019 |
| 3939 | Seelig Oil Corpo | | Oil Operator | Apr 1985 |
| 3940 | Seewald, Hughes | Amarillo, TX 79105 | Gas Operator | Jan 1997 |
| 3941 | Seibert Oil, LLC | Macksville, KS 67557 | Oil & Gas Operator | Sep 2023 |
| 3942 | Sek Energy, LLC | Benedict, KS 66714 | Oil & Gas Operator | Dec 2024 |
| 3943 | Sek Oil Incorpor | | Oil Operator | Jun 1985 |
| 3944 | Semgas Gathering LLC | Tulsa, OK 74136 | Gas Operator | Jul 2009 |
| 3945 | Seminole Senora Sand Unit #1, LLC | Rogers, AR 72758 | Gas Operator | Sep 2010 |
| 3946 | Sensor Oil & Gas Inc | Duncan, OK 73534 | Oil & Gas Operator | May 2013 |
| 3947 | Sentinel Petroleum Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2020 |
| 3948 | Serendipity Production Company LC | Guthrie, OK 73044 | Oil & Gas Operator | Apr 2020 |
| 3949 | Servco Productio | | Oil Operator | Dec 1992 |
| 3950 | Service Drilling Co., L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2003 |
| 3951 | Ses Oil | | Oil Operator | Jun 2004 |
| 3952 | Seydell, E. Morris | Wichita Falls, TX 76307 | Oil Operator | Feb 1993 |
| 3953 | Seymour Oil Co., Inc. | Edmond, OK 73025 | Oil & Gas Operator | Jul 2011 |
| 3954 | SH Oil Operations LLC | Wichita, KS 67277 | Oil & Gas Operator | Dec 2024 |
| 3955 | Shade Tree Oil C | | Oil Operator | Oct 1987 |
| 3956 | Shaffer Oil Co., Inc. | Burlington, KS 66839 | Oil & Gas Operator | Jul 2001 |
| 3957 | Shaffer Oil Leas | | Oil Operator | May 1993 |
| 3958 | Shaida, John H. | Wichita, KS 67226 | Oil & Gas Operator | Apr 2025 |
| 3959 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Feb 2025 |
| 3960 | Sharon Resources | | Oil Operator | Sep 1995 |
| 3961 | Sharon Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2010 |
| 3962 | Sharp Engineerin | | Oil Operator | Aug 1995 |
| 3963 | Sharp, Harry D. | Leawood, KS 66209 | Oil Operator | May 1997 |
| 3964 | Sharp, Robert L. &/Or Cindy | | Oil Operator | Nov 2019 |
| 3965 | Shaw George R | | Oil & Gas Operator | Mar 1992 |
| 3966 | Shaw Robert Lesl | | Oil Operator | Oct 1989 |
| 3967 | Shaw, George R. (Deceased) | Wichita, KS 67202 | Gas Operator | Dec 2009 |
| 3968 | Shawmar Oil & Gas Co., Inc. | Sunnyvale, TX 75182 | Oil & Gas Operator | Dec 2023 |
| 3969 | Shawmar Oil Comp | | Oil & Gas Operator | Feb 1995 |
| 3970 | Shawnee Investment Company, Inc. | Council Grove, KS 66846 | Oil Operator | Apr 2002 |
| 3971 | Shearhart, Gary L. | Havana, KS 67347 | Oil Operator | Oct 2001 |
| 3972 | Sheedy Energy Production Company | | Oil Operator | Dec 2024 |
| 3973 | Sheel Oil Compan | | Oil Operator | Jan 1985 |
| 3974 | Sheffler Industries | Phoenix, AZ 85013 | Oil Operator | Aug 1999 |
| 3975 | Shelby Resources LLC | Denver, CO 80207 | Oil & Gas Operator | Dec 2024 |
| 3976 | Sheldon Brothers Agency | Salina, KS 67402 | Oil Operator | May 1998 |
| 3977 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 3978 | Shelley, Randall D. | Wichita, KS 67202 | Oil Operator | Dec 2024 |
| 3979 | Shelton, Robert | Lacygne, KS 66040 | Oil Operator | Nov 2024 |
| 3980 | Shepler & Thomas | | Oil & Gas Operator | Oct 1992 |
| 3981 | Shepler & Thomas, Inc. | Edmond, OK 73013 | Oil & Gas Operator | Dec 2024 |
| 3982 | Sher-Lon Corpora | | Oil Operator | Apr 1994 |
| 3983 | Sheri-Di Product | | Oil Operator | Apr 1994 |
| 3984 | Shields Oil Prod | | Oil & Gas Operator | Aug 1995 |
| 3985 | Shields Oil Producers Inc. | Russell, KS 67665 | Oil Operator | Dec 2024 |
| 3986 | Sho-Bar Energy I | | Oil & Gas Operator | Jan 1991 |
| 3987 | Sho-Bar Energy, Inc. | Harper, KS 67058 | Oil & Gas Operator | Dec 2024 |
| 3988 | Shofner Oil Company | Chushing,, OK 74023 | Oil & Gas Operator | Feb 2003 |
| 3989 | Shoreline Energy Partners, LLC | Chandler, AZ 85249 | Oil Operator | May 2011 |
| 3990 | Shoreline Operating LLC | Oklahoma City, OK 73113 | Oil & Gas Operator | Jan 2025 |
| 3991 | Short W D Oil Co | | Oil Operator | Mar 1996 |
| 3992 | Shorts Production LLC | Havana, KS 67347 | Oil Operator | Dec 2024 |
| 3993 | Shouse, Micheal C. | Liberty, MO 64068 | Oil & Gas Operator | Jan 1996 |
| 3994 | Shultz, Melvin W. | Parsons, KS 67357 | Oil Operator | Nov 1995 |
| 3995 | Sidwell Oil & Ga | | Oil & Gas Operator | May 1993 |
| 3996 | Sidwell Oil & Gas, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2014 |
| 3997 | Sieg Energy, Inc. | Ottawa, KS 66067 | Oil Operator | Nov 2024 |
| 3998 | Siegfried R H In | | Oil Operator | Apr 1985 |
| 3999 | Siemsen Operating, LLC | Holyrood, KS 67450 | Oil Operator | Dec 2024 |
| 4000 | Sierra Drilling | | Oil Operator | Sep 1988 |