| 701 | Robertson Resources, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Nov 2025 |
| 702 | Robertson-Bryce Management, LLC | Tyler, TX 75701 | Oil & Gas Operator | Nov 2025 |
| 703 | Robinson Oil Inc | Eunice, NM 88231 | Oil & Gas Operator | Jun 2015 |
| 704 | Roc Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2013 |
| 705 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Nov 2025 |
| 706 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2025 |
| 707 | Rockcliff Operating New Mexico LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2018 |
| 708 | Roden Oil Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2008 |
| 709 | Rodney B Webb Dba Webb Oil Co | Artesia, NM 88210 | Oil & Gas Operator | Jun 2005 |
| 710 | Roff Operating Company LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2025 |
| 711 | Roma Oil & Gas | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1999 |
| 712 | Ronald J Nelson | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2006 |
| 713 | Rosehill Operating Company, LLC | Houston, TX 77084 | Oil & Gas Operator | Sep 2021 |
| 714 | Roswell Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2019 |
| 715 | Roughhouse Operating, LLC | Addison, TX 75001 | Oil & Gas Operator | Aug 2025 |
| 716 | Rover Operating, LLC | Chicago, IL 60606 | Oil & Gas Operator | Jul 2025 |
| 717 | Rover Operations Inc | Richardson, TX 75080 | Oil & Gas Operator | Sep 1998 |
| 718 | Royal Oil LTD. Co. | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 719 | RSC Resources Limited Partnership | Midland, TX 79707 | Oil & Gas Operator | Apr 2013 |
| 720 | Rubicon Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2025 |
| 721 | Rust Oil Corp. | Fort Worth, TX 76121 | Oil & Gas Operator | Nov 2025 |
| 722 | Ruth Oil Co, LLC | Eunice, NM 88231 | Oil Operator | Mar 2015 |
| 723 | Ruthco Oil, LLC | Eunice, NM 88231 | Oil Operator | May 2008 |
| 724 | RW Oil Co | Lovington, NM BAD ADDR | Oil Operator | Nov 1994 |
| 725 | S & D Partnership | Eunice, NM 88231 | Oil Operator | Sep 2025 |
| 726 | Saba Energy Inc | Midland, TX BAD ADDR | Oil & Gas Operator | Nov 1994 |
| 727 | Saba Energy Of Texas Inc | Houston, TX 77042 | Oil & Gas Operator | Jul 2007 |
| 728 | Saber Oil & Gas Ventures, LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2025 |
| 729 | Saber Resources, LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2008 |
| 730 | Sabinal Energy Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2025 |
| 731 | Sabre Op Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2025 |
| 732 | Saga Petroleum Limited Liability Co. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 733 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Nov 2025 |
| 734 | Saguaro Petroleum, LLC | Midland, TX 79705 | Oil & Gas Operator | Nov 2025 |
| 735 | Sahara Operating Company | Midland, TX 79704 | Oil & Gas Operator | Nov 2025 |
| 736 | Sam K VIersen | Okmulgee, OK 74447 | Oil & Gas Operator | Jun 1996 |
| 737 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 738 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 739 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2025 |
| 740 | Sandel Energy, Inc. | Huntsville, TX 77342 | Oil & Gas Operator | Apr 2004 |
| 741 | Sandel Operating Company | Huntsville, TX 77340 | Oil & Gas Operator | Nov 2025 |
| 742 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Nov 2025 |
| 743 | Santa Fe Energy Operating Partners L P | Houston, TX 77057 | Oil & Gas Operator | Dec 1994 |
| 744 | Santa Fe Exploration Company | Lubbock, TX 79408 | Oil & Gas Operator | Nov 1997 |
| 745 | Santo Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2025 |
| 746 | Santo Petroleum LLC | Artesia, NM 88211 | Oil & Gas Operator | Sep 2024 |
| 747 | Sarvis Permian Land Fund I SC, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2025 |
| 748 | Saxet Oil Corporation | Midland, TX 79708 | Oil & Gas Operator | Nov 2025 |
| 749 | Sco Permian, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Sep 2025 |
| 750 | Scorpion Oil & Gas, LLC | Houston, TX 77036 | Oil & Gas Operator | May 2025 |
| 751 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Nov 2025 |
| 752 | SDG Resources L.P. | Montrose, CO 81402 | Oil & Gas Operator | May 2006 |
| 753 | SDX Resources, Inc. | Midland, TX 79705 | Oil & Gas Operator | Nov 2025 |
| 754 | Sea Sand Oil Company | Fort Worth, TX 76185 | Oil & Gas Operator | Jun 1995 |
| 755 | Seattle'S Best Consulting LLC | Austin, TX 78731 | Oil & Gas Operator | Nov 2025 |
| 756 | Seay Exploration, Inc. | Midland, TX 79704 | Oil & Gas Operator | Mar 2008 |
| 757 | Seely Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2025 |
| 758 | Seguro Oil And Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2024 |
| 759 | Shackelford Oil Co | Midland, TX 79707 | Oil & Gas Operator | Aug 2025 |
| 760 | Shahara Oil LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Oct 2000 |
| 761 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 762 | Shenandoah Petroleum Corporation | Midland, TX 79705 | Oil & Gas Operator | Nov 2025 |
| 763 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2025 |
| 764 | Shinnery Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 2025 |
| 765 | Siana Operating LLC | Conroe, TX 77305224 | Oil & Gas Operator | May 2017 |
| 766 | Sidney Lanier | Midland, TX BADADDR | Oil & Gas Operator | Jan 1996 |
| 767 | Sierra Blanca Operating Company | Cleburne, TX BADADDR | Oil & Gas Operator | May 1999 |
| 768 | Siete Oil And Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 769 | Silver Pines Energy Corp. | Houston, TX 77005 | Oil & Gas Operator | May 2025 |
| 770 | Silver Spike Energy Operating Of NM, LLC | Midland, TX 79701 | Oil Operator | Jul 2016 |
| 771 | Sloan Petroleum Inc. | Midland, TX 79710 | Oil & Gas Operator | Nov 2025 |
| 772 | SM Energy Company | Midland, TX 79707 | Oil & Gas Operator | Nov 2025 |
| 773 | SMC Oil & Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Nov 2025 |
| 774 | Smith & Marrs Inc. | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2021 |
| 775 | Snow Oil & Gas Inc. | Andrews, TX 79714 | Oil & Gas Operator | Nov 2025 |
| 776 | Sogo III LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2017 |
| 777 | Solis Partners, L.L.C. | Midland, TX 79707 | Oil & Gas Operator | Aug 2025 |
| 778 | Sonat Exploration Co. | Houston, TX 77251 | Oil & Gas Operator | Dec 2021 |
| 779 | Southeastern Petroleum Inc | Roswell, NM BAD ADDR | Oil & Gas Operator | Dec 1995 |
| 780 | Southland Royalty Company | Houston, TX 77210 | Oil & Gas Operator | Sep 2011 |
| 781 | Southwest Royalties, Inc. | Midland, TX 79710 | Oil & Gas Operator | Nov 2025 |
| 782 | Southwestern Energy Prod Co | Houston, TX 77032 | Oil & Gas Operator | Jun 2015 |
| 783 | Southwestern Inc | Hobbs, NM 88240 | Oil Operator | Oct 2009 |
| 784 | Sozo Natural Resources LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2025 |
| 785 | Special Energy Corp. | Stillwater, OK 74076 | Oil & Gas Operator | Nov 2025 |
| 786 | Spence Energy Company | Dallas, TX 75360 | Oil & Gas Operator | Nov 2025 |
| 787 | Spenergy Corp. | Midland, TX 79701 | Oil & Gas Operator | Dec 1999 |
| 788 | Spindletop Oil & Gas Co. | Dallas, TX 75230 | Oil & Gas Operator | Nov 2025 |
| 789 | Spur Energy Partners LLC | Houston, TX 77024 | Oil & Gas Operator | Aug 2025 |
| 790 | St. Clair Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Mar 2008 |
| 791 | Stanolind Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 792 | Stanolind Operating LLC Dba Stanolind NM LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2014 |
| 793 | Stanolind Permian LLC | Midland, TX 79705 | Oil & Gas Operator | Nov 2025 |
| 794 | Stearns | Crossroads, NM 88114 | Oil & Gas Operator | Aug 2025 |
| 795 | Stephens & Johnson Op Co | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2025 |
| 796 | Steven D Ruppert | Tesuque, NM 87574 | Oil & Gas Operator | Feb 2022 |
| 797 | Stevenson Oil Co | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 798 | Steward Energy II, LLC | Frisco, TX 75034 | Oil & Gas Operator | Mar 2025 |
| 799 | Strata Production Co | Roswell, NM 882021030 | Oil & Gas Operator | Aug 2025 |
| 800 | Summers Exploration Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2002 |