| 901 | Shadco | Worland, WY 82401 | Oil & Gas Operator | Aug 2025 |
| 902 | Shade Tree Oil C | | Oil Operator | Oct 1987 |
| 903 | Shadow Wolf Energy LLC | | Oil Operator | May 2026 |
| 904 | Shadow-Del Oil Company | Kiefer, OK 74041-0453 | Oil & Gas Operator | Jul 2015 |
| 905 | Shadowpeak Operating LLC | Oklahoma City, OK 73159-6905 | Oil & Gas Operator | Apr 2026 |
| 906 | Shadrack Production Company | | Gas Operator | Dec 1982 |
| 907 | Shady Oil Co. | Brownwood, TX 76801 | Oil & Gas Operator | Jul 2026 |
| 908 | Shafer Berman J | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 909 | Shafer David Oil Prod Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 910 | Shaffer Oil Co., Inc. | Burlington, KS 66839 | Oil & Gas Operator | Jul 2001 |
| 911 | Shaffer Oil Leas | | Oil Operator | May 1993 |
| 912 | Shag Bark Land And Cattle Co. LLC | Olean, NY 14760 | Oil & Gas Operator | Dec 2021 |
| 913 | Shahan, Donald Allan | Abilene, TX 79602 | Oil Operator | Jul 2026 |
| 914 | Shahara Oil LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Oct 2000 |
| 915 | Shaida, John H. | Wichita, KS 67226 | Oil & Gas Operator | Jul 2026 |
| 916 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | May 2026 |
| 917 | Shale Energy International, LLC | | Oil & Gas Operator | Nov 2024 |
| 918 | Shale Energy LLC | Jeffersonville, KY 40337 | Oil Operator | Dec 2018 |
| 919 | Shale Gas Production, LLC | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 920 | Shale Hunter, LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 921 | Shale Oil Co., Inc. | Liberty, TX 77575 | Oil & Gas Operator | Jul 2026 |
| 922 | Shale Operating Co. | Dallas, TX 75356 | Oil & Gas Operator | Jul 2026 |
| 923 | Shale Properties LLC | Kingfisher, OK 73750 | Oil Operator | Aug 2023 |
| 924 | Shale Service, Inc. | | Oil & Gas Operator | Apr 2019 |
| 925 | Shallow Energy Inc | South Dennis, MA 2660 | Oil & Gas Operator | Feb 2025 |
| 926 | Shallow Production Oper, LLC | Austin, TX 78738 | Oil Operator | Jul 2026 |
| 927 | Shamrock Minerals Corporation | Merkel, TX 79536 | Oil & Gas Operator | Nov 1998 |
| 928 | Shamrock Oil Co. | Sugar Land, TX 77478 | Oil & Gas Operator | Mar 2008 |
| 929 | Shamrock Operating Company LLC | Cleveland, OK 74020 | Oil Operator | Aug 2022 |
| 930 | Shamrock Texas Partners L.P. | San Angelo, TX 76904 | Oil & Gas Operator | Jul 2026 |
| 931 | Shamrock Well Operations LLC | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | Apr 2026 |
| 932 | Shana Petroleum Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2002 |
| 933 | Shanafelt Oil Operating, LLC | Jacksboro, TX 76458 | Oil Operator | Jul 2026 |
| 934 | Shanafelt, Arthur | Jacksboro, TX 76458 | Oil & Gas Operator | May 2003 |
| 935 | Shanahan Donald P | Ridgedale, MO 65739 | Oil & Gas Operator | Dec 1990 |
| 936 | Shaner W G | Longmont, CO 80503 | Gas Operator | Dec 2021 |
| 937 | Shanghai Energy Corporation | Houston, TX 77027 | Oil & Gas Operator | Apr 2003 |
| 938 | Shanks Drilling & Production Company LLC | Bixby, OK 74008 | Oil & Gas Operator | May 2026 |
| 939 | Shanks Robert "Bob" | Haskell, OK 74436-8809 | Oil & Gas Operator | Jun 2023 |
| 940 | Shanks, Bob | Haskell, OK 74436 | Oil Operator | Sep 2002 |
| 941 | Shannon Corporation Inc | Okmulgee, OK 74447-1323 | Oil & Gas Operator | Mar 2015 |
| 942 | Shannon Energy | Liberal, KS 67901 | Oil & Gas Operator | Feb 1999 |
| 943 | Shannon Petroleum Inc | Tulsa, OK 74136-4603 | Oil & Gas Operator | Oct 2016 |
| 944 | Shannon Williams | | Oil Operator | Jan 1993 |
| 945 | Shappell Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Sep 2012 |
| 946 | Shappell Oil Company, L.L.C. | Harrisonburg, LA 71340 | Oil & Gas Operator | Jul 2026 |
| 947 | Shar Alan Oil Company | | Oil & Gas Operator | Oct 2005 |
| 948 | Sharber Billy Jack Operating | Konawa, OK 74849-0071 | Oil & Gas Operator | Mar 2015 |
| 949 | Sharber Don E | Okemah, OK 74859-0322 | Oil Operator | Dec 2018 |
| 950 | Sharber Production Inc | Konawa, OK 74849 | Oil & Gas Operator | Dec 2024 |
| 951 | Share Petroleum Corp. | Mabank, TX 75147 | Oil Operator | Jul 2026 |
| 952 | Sharkey Well Service Inc | | Oil Operator | Dec 2023 |
| 953 | Sharoco Corporation | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 1996 |
| 954 | Sharon Hunter Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Sep 2012 |
| 955 | Sharon Resources | | Oil Operator | Sep 1995 |
| 956 | Sharon Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2010 |
| 957 | Sharp Anthony G | Shawnee, OK 74802-1701 | Oil & Gas Operator | Jul 2003 |
| 958 | Sharp Engineerin | | Oil Operator | Aug 1995 |
| 959 | Sharp Image Energy, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Jul 2026 |
| 960 | Sharp, Cherry L | Jacksboro, TX 76458 | Oil Operator | Jul 2026 |
| 961 | Sharp, Harry D. | Leawood, KS 66209 | Oil Operator | May 1997 |
| 962 | Sharp, John T. | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 2014 |
| 963 | Sharp, Robert L. &/Or Cindy | | Oil Operator | Nov 2019 |
| 964 | Sharpe Energy Company | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 965 | Sharples Phillip T Trust | Denver, CO 80264 | Oil & Gas Operator | Nov 2020 |
| 966 | Shattuck SWD LLC | Shattuck, OK 73858-0848 | Oil Operator | Mar 2022 |
| 967 | Shattuck, Frank E. & Carol D. | Eden, NY 14057 | Gas Operator | Dec 2025 |
| 968 | Shaver Tommy L | Kingfisher, OK 73750-9612 | Oil & Gas Operator | Apr 2015 |
| 969 | Shaw George R | | Oil & Gas Operator | Mar 1992 |
| 970 | Shaw Robert Lesl | | Oil Operator | Oct 1989 |
| 971 | Shaw Thomas P | Tulsa, OK 74105-7327 | Oil & Gas Operator | Mar 2015 |
| 972 | Shaw, George R. (Deceased) | Wichita, KS 67202 | Gas Operator | Dec 2009 |
| 973 | Shaw, T. G. Oil Company, LTD. | Fort Worth, TX 76113 | Oil & Gas Operator | Jul 2026 |
| 974 | Shaw-Laird, LLC | | Oil & Gas Operator | Jan 2017 |
| 975 | Shawmar Oil & Gas Co., Inc. | Sunnyvale, TX 75182 | Oil & Gas Operator | Dec 2023 |
| 976 | Shawmar Oil Comp | | Oil & Gas Operator | Feb 1995 |
| 977 | Shawmut Production Corporation | Pittsburgh, PA 15219-1913 | Oil & Gas Operator | Jan 2003 |
| 978 | Shawnee Investment Company, Inc. | Council Grove, KS 66846 | Oil Operator | Apr 2002 |
| 979 | Shawnee Oil Development Co Inc | | Oil & Gas Operator | Dec 2025 |
| 980 | Shawver & Shawver | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 981 | Shawver & Son Inc | Oklahoma City, OK 73154-0778 | Oil & Gas Operator | Dec 2025 |
| 982 | Shawver Energy Inc | Oklahoma City, OK 73154-0683 | Oil & Gas Operator | Apr 2014 |
| 983 | Shearer James I | Blairsville, PA 15717-0337 | Oil & Gas Operator | Dec 2003 |
| 984 | Shearer Oil Company | Graham, TX 76450 | Oil & Gas Operator | May 2002 |
| 985 | Shearhart, Gary L. | Havana, KS 67347 | Oil Operator | Oct 2001 |
| 986 | Shebester Inc | Maysville, OK 73057 | Oil & Gas Operator | Nov 1998 |
| 987 | Shed Oil Company | Electra, TX 76360 | Oil Operator | Jul 2026 |
| 988 | Sheedy Energy Production Company | | Oil Operator | Mar 2026 |
| 989 | Sheedy, John D. | North Tonawanda, NY 14120 | Gas Operator | Dec 2025 |
| 990 | Sheel Oil Compan | | Oil Operator | Jan 1985 |
| 991 | Sheer Energy, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2026 |
| 992 | Sheets Exploration Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2016 |
| 993 | Sheets George M & Judith A | Tonkawa, OK 74653 | Oil & Gas Operator | Apr 2026 |
| 994 | Sheets, P. A. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 1994 |
| 995 | Sheffler Industries | Phoenix, AZ 85013 | Oil Operator | Aug 1999 |
| 996 | Shefts & Shefts, Inc. | Luling, TX 78648 | Oil & Gas Operator | Jul 2026 |
| 997 | Shelburne Oil Company | Oklahoma City, OK 73116-7639 | Gas Operator | Feb 2020 |
| 998 | Shelby Boswell Operator, LLC | Dallas, TX 75225 | Oil & Gas Operator | Jul 2026 |
| 999 | Shelby H. Loe, SR. Oil Co. | | Oil Operator | Jul 1989 |
| 1000 | Shelby Operating Company | Dallas, TX 75205 | Oil & Gas Operator | Jul 2026 |