Dimmit County Operators
Every operator with a permit on file or a well of record here, ranked by permits issued in the window. Wells are each operator's current inventory in the county from the RRC wellbore file.
| # | Operator | Permits | All time | Horizontal | Wells | First | Last |
|---|---|---|---|---|---|---|---|
| 1 | Chesapeake Operating, Inc. | 1,181 | 1,181 | 1,179 | 6 | Mar 4, 2010 | Nov 26, 2014 |
| 2 | Anadarko E&P Onshore LLC | 1,060 | 1,060 | 1,060 | 117 | May 26, 2010 | Dec 29, 2015 |
| 3 | Chesapeake Operating, L.L.C. | 767 | 767 | 766 | 50 | Sep 27, 2011 | Dec 20, 2022 |
| 4 | Anadarko E&P Company LP | 707 | 707 | 699 | 7 | Oct 3, 2006 | Dec 19, 2012 |
| 5 | SN EF Maverick, LLC | 420 | 420 | 418 | 96 | Jun 19, 2014 | Mar 16, 2023 |
| 6 | Murphy Expl. & Prod. Co. - USA | 416 | 416 | 414 | 296 | Feb 17, 2010 | Sep 11, 2026 |
| 7 | Grit Oil & Gas Management, LLC | 299 | 299 | 298 | 21 | Aug 11, 2021 | Jun 10, 2025 |
| 8 | Galaxy Oil Company | 254 | 254 | 0 | 8 | Jun 2, 1977 | Mar 28, 1988 |
| 9 | SN Operating, LLC | 218 | 218 | 216 | 0 | Sep 21, 2012 | Dec 18, 2019 |
| 10 | Newfield Exploration Company | 207 | 207 | 106 | 5 | Jun 2, 2010 | Sep 8, 2014 |
| 11 | CML Exploration, LLC | 138 | 138 | 132 | 62 | Jun 7, 2008 | Mar 5, 2026 |
| 12 | Rosetta Resources Operating LP | 134 | 134 | 134 | 110 | Jun 15, 2010 | Sep 10, 2024 |
| 13 | Javelin Energy Partners Mgmt LLC | 111 | 111 | 111 | 1,454 | Jul 31, 2023 | Aug 31, 2026 |
| 14 | Rosewood Resources, Inc. | 102 | 102 | 102 | 63 | Jun 26, 2019 | Sep 11, 2026 |
| 15 | Lewis Petro Properties, Inc. | 100 | 100 | 95 | 111 | Jun 13, 1997 | May 4, 2023 |
| 16 | Exploration Company, The | 100 | 100 | 20 | 1 | Apr 4, 1985 | May 3, 2007 |
| 17 | Stonegate Production Company,llc | 100 | 100 | 96 | 0 | Dec 8, 2008 | Oct 13, 2014 |
| 18 | Shell Western E&P | 96 | 96 | 92 | 1 | Sep 8, 2010 | Apr 15, 2013 |
| 19 | Sage Energy Company | 92 | 92 | 79 | 31 | Mar 18, 1997 | Jun 7, 2019 |
| 20 | Crimson Energy Partners, L.P. | 92 | 92 | 5 | 8 | Jul 29, 2005 | Nov 13, 2008 |
| 21 | Sun Expl. & Prod. Co.-Houston | 91 | 91 | 0 | 2 | Nov 29, 1979 | Apr 20, 1983 |
| 22 | EL Toro Resources LLC | 72 | 72 | 71 | 66 | Apr 22, 2014 | Aug 11, 2026 |
| 23 | Blackbrush O & G, LLC | 71 | 71 | 71 | 3 | May 23, 2012 | Jul 24, 2017 |
| 24 | Endeavor Natural Gas, LP | 67 | 67 | 67 | 13 | Jan 15, 2016 | Feb 5, 2025 |
| 25 | Oryx Energy Company | 65 | 65 | 56 | 7 | Nov 17, 1986 | Mar 11, 1997 |
| 26 | Escondido Resources GP, LLC | 64 | 64 | 0 | 2 | Apr 13, 2005 | Oct 18, 2007 |
| 27 | Conoco Inc. | 63 | 63 | 0 | 102 | Dec 11, 1979 | Feb 15, 1995 |
| 28 | EP Energy E&P Company, L.P. | 59 | 59 | 58 | 0 | Jan 28, 2013 | Mar 9, 2018 |
| 29 | Protege Energy III LLC | 52 | 52 | 51 | 1 | Jan 12, 2017 | Mar 25, 2024 |
| 30 | U. S. Operating, Inc. | 48 | 48 | 1 | 33 | Oct 24, 1980 | Jan 5, 1999 |
| 31 | Global Natural Resources Corp. | 48 | 48 | 0 | 4 | Aug 12, 1988 | Dec 19, 1991 |
| 32 | Tarina Oil Company | 46 | 46 | 0 | 3 | Jun 8, 1977 | Apr 14, 1986 |
| 33 | Texas American Resources Company | 44 | 44 | 34 | 0 | Oct 14, 2004 | May 19, 2017 |
| 34 | Union Pacific Resources Company | 43 | 43 | 12 | 5 | Feb 8, 1994 | Feb 17, 1998 |
| 35 | Crimson Energy Partners IV, LLC | 39 | 39 | 39 | 0 | Jun 4, 2014 | Jun 23, 2022 |
| 36 | Trinity Operating (Usg), LLC | 38 | 38 | 38 | 149 | Apr 20, 2018 | Jul 14, 2021 |
| 37 | Sun Exploration & Production Co. | 38 | 38 | 0 | 25 | Sep 9, 1977 | Jul 26, 1982 |
| 38 | Redemption Oil & Gas, LLC | 37 | 37 | 29 | 0 | Sep 22, 2009 | May 25, 2022 |
| 39 | Verdun Oil & Gas LLC | 36 | 36 | 36 | 167 | Feb 1, 2017 | Jan 21, 2026 |
| 40 | Berenergy Corporation | 36 | 36 | 35 | 4 | Mar 14, 1990 | Apr 2, 2002 |
| 41 | Prime Operating Company | 35 | 35 | 0 | 283 | Dec 2, 1993 | Nov 30, 2016 |
| 42 | Blackbrush O & G, Inc. | 35 | 35 | 7 | 4 | Mar 20, 2008 | Jun 19, 2012 |
| 43 | Atlas Operating LLC | 34 | 34 | 30 | 273 | Nov 18, 2020 | Jun 25, 2026 |
| 44 | Txco Resources Inc. | 34 | 34 | 16 | 2 | Apr 27, 2001 | Jan 21, 2010 |
| 45 | SM Energy Company | 33 | 33 | 33 | 25 | Mar 30, 2012 | Oct 1, 2025 |
| 46 | Hamilton, J. R. | 32 | 32 | 0 | 31 | Oct 7, 1977 | Apr 20, 2022 |
| 47 | Jonah Energy LLC | 29 | 29 | 29 | 318 | Jun 10, 2026 | Oct 21, 2026 |
| 48 | Sun Expl. & Prod. Co.-Corpus | 29 | 29 | 1 | 4 | Jun 10, 1983 | Jan 26, 1988 |
| 49 | Tesoro Petroleum Corporation | 28 | 28 | 0 | 5 | Jul 8, 1977 | Jan 15, 1988 |
| 50 | Hughes & Hughes | 27 | 27 | 0 | 10 | Jun 9, 1977 | May 10, 1982 |
| 51 | Superior Oil Company, The | 27 | 27 | 0 | 2 | May 11, 1979 | Feb 18, 1986 |
| 52 | Freedom Production, Inc. | 27 | 27 | 27 | 0 | May 9, 2017 | Dec 31, 2018 |
| 53 | Mormac Oil & Gas Co. | 25 | 25 | 0 | 3 | Aug 2, 1977 | Mar 12, 1981 |
| 54 | Texas International Oper., LLC | 24 | 24 | 24 | 0 | Sep 7, 2011 | Feb 20, 2013 |
| 55 | Sea Eagle Ford, LLC | 23 | 23 | 21 | 1 | May 8, 2014 | Nov 8, 2018 |
| 56 | EL Paso E & P Company, L. P. | 23 | 23 | 23 | 0 | Nov 23, 2010 | Apr 12, 2012 |
| 57 | Champlin Petroleum Co. | 22 | 22 | 0 | 9 | Jun 7, 1977 | Aug 5, 1985 |
| 58 | Seagull Operating Co. Inc. | 22 | 22 | 3 | 7 | Feb 11, 1981 | Nov 12, 1991 |
| 59 | Gulftex Energy, LLC | 22 | 22 | 22 | 3 | Dec 5, 2022 | Oct 29, 2026 |
| 60 | San Antonio Gas & Oil, Inc. | 21 | 21 | 3 | 18 | Mar 15, 1989 | Dec 3, 1991 |
| 61 | Swift Energy Operating, LLC | 21 | 21 | 0 | 16 | Oct 27, 2006 | Jan 2, 2009 |
| 62 | Gose, Steve | 21 | 21 | 0 | 5 | Jul 27, 1977 | Jan 23, 1980 |
| 63 | Kirkwood & Company | 21 | 21 | 0 | 0 | Jun 12, 1980 | Apr 7, 1982 |
| 64 | Lightning Oil Company | 20 | 20 | 3 | 10 | Jul 3, 1978 | Jan 29, 2014 |
| 65 | Jamin Energy, Inc. | 20 | 20 | 0 | 1 | Aug 22, 1983 | Mar 5, 1992 |
| 66 | Ladd Petroleum Corp. | 20 | 20 | 0 | 1 | Aug 25, 1977 | Sep 10, 1984 |
| 67 | Carrizo Exploration, Inc. | 19 | 19 | 0 | 26 | Jan 28, 1997 | Mar 9, 2010 |
| 68 | Hamilton, Clay | 19 | 19 | 12 | 19 | Feb 4, 2016 | Nov 6, 2024 |
| 69 | Petro Gulf, Inc. | 19 | 19 | 0 | 0 | Oct 30, 1979 | Feb 19, 1980 |
| 70 | Forney, Bill, Inc. | 18 | 18 | 0 | 2 | Oct 8, 1981 | Jan 7, 1985 |
| 71 | Mobil Producing TX. & N.M. Inc. | 18 | 18 | 0 | 0 | Jun 17, 1986 | Jan 11, 1988 |
| 72 | Sunoco Energy Development Co. | 18 | 18 | 0 | 0 | Nov 13, 1978 | Dec 15, 1978 |
| 73 | Choya Operating, LLC | 17 | 17 | 0 | 5 | Apr 12, 2013 | May 15, 2026 |
| 74 | Dow Chemical Co., The | 17 | 17 | 0 | 0 | Sep 9, 1977 | Sep 23, 1980 |
| 75 | Lonestar Operating, LLC | 17 | 17 | 17 | 0 | Dec 30, 2013 | Jan 9, 2020 |
| 76 | CMR Energy, L.P. | 16 | 16 | 10 | 24 | Jan 22, 2004 | Jun 21, 2017 |
| 77 | Canus Petroleum, Inc. | 16 | 16 | 0 | 0 | Jun 28, 1977 | Mar 28, 1979 |
| 78 | L & J Exploration, LLC | 15 | 15 | 0 | 26 | Sep 14, 2007 | Dec 31, 2018 |
| 79 | Denver Clarion Resources Inc. | 15 | 15 | 0 | 0 | Jun 17, 1985 | May 26, 1987 |
| 80 | Ineos USA Oil & Gas LLC | 14 | 14 | 14 | 727 | Oct 21, 2011 | Oct 9, 2026 |
| 81 | Kerns O & G, Inc. | 14 | 14 | 2 | 13 | Nov 16, 1994 | Dec 6, 2004 |
| 82 | D & G Gas & Oil Company | 14 | 14 | 0 | 1 | Apr 24, 1980 | Oct 14, 1981 |
| 83 | Crimson Exploration Oper., Inc. | 14 | 14 | 14 | 0 | Oct 30, 2013 | Sep 11, 2014 |
| 84 | Home Petroleum Corporation | 14 | 14 | 0 | 0 | Jan 7, 1980 | Oct 29, 1985 |
| 85 | Overly Operating Co. | 13 | 13 | 0 | 5 | Aug 18, 1977 | Sep 7, 1988 |
| 86 | Asamera Oil (U.S.) Inc. | 13 | 13 | 0 | 3 | Aug 3, 1977 | Jun 25, 1980 |
| 87 | Registry Petroleum Corporation | 13 | 13 | 0 | 1 | Apr 22, 1980 | Aug 11, 1982 |
| 88 | Oversea Oil Co. | 13 | 13 | 0 | 0 | Mar 5, 1987 | Jan 17, 1989 |
| 89 | Silverbow Resources Oper, LLC | 12 | 12 | 12 | 8 | Apr 12, 2019 | Apr 15, 2024 |
| 90 | Null, W. M.-Oil Producer | 12 | 12 | 0 | 3 | Nov 26, 1979 | Oct 19, 1981 |
| 91 | U.S. Enercorp, Ltd. | 12 | 12 | 11 | 1 | Jul 30, 2013 | Feb 12, 2015 |
| 92 | Barnhill, Charles R./Williams, M | 12 | 12 | 0 | 0 | Sep 13, 1978 | Jan 26, 1979 |
| 93 | Centura Incorporated | 12 | 12 | 0 | 0 | May 26, 1978 | May 21, 1982 |
| 94 | Encana Oil & Gas(usa) Inc. | 12 | 12 | 11 | 0 | Aug 23, 2004 | Jun 10, 2010 |
| 95 | Texakoma Oil & Gas Corporation | 11 | 11 | 11 | 5 | May 10, 1990 | Jan 3, 1992 |
| 96 | Express Oil Co. | 11 | 11 | 9 | 1 | Nov 18, 2004 | Mar 12, 2009 |
| 97 | Ranger O & G Operating, LLC | 11 | 11 | 11 | 1 | Oct 26, 2013 | Apr 28, 2014 |
| 98 | Collins & Ware, Inc. | 11 | 11 | 0 | 0 | Sep 23, 1997 | Jan 25, 2000 |
| 99 | Petro-Lewis Corporation | 10 | 10 | 0 | 2 | Nov 12, 1980 | Oct 21, 1983 |
| 100 | Cabot Petroleum Corporation | 10 | 10 | 0 | 1 | Oct 14, 1981 | Oct 1, 1985 |
| 101 | Buffco Production Inc. | 10 | 10 | 8 | 0 | Feb 15, 2013 | Oct 27, 2014 |
| 102 | Merit Energy Company | 10 | 10 | 0 | 0 | Oct 14, 1996 | Sep 24, 2001 |
| 103 | Sabco Operating Company | 10 | 10 | 0 | 0 | May 23, 2003 | Oct 19, 2011 |
| 104 | Brown, J. R. | 9 | 9 | 0 | 5 | Aug 6, 1985 | Aug 25, 1986 |
| 105 | Cytex South Texas Operating LLC | 9 | 9 | 9 | 4 | Sep 16, 2024 | Jul 9, 2026 |
| 106 | KP Exploration, Inc. | 9 | 9 | 0 | 3 | Aug 5, 1981 | Jun 25, 1982 |
| 107 | Richards, Bob | 9 | 9 | 0 | 2 | Oct 15, 1982 | May 25, 1983 |
| 108 | Coates Energy Trust | 9 | 9 | 0 | 1 | Sep 16, 1980 | Jun 16, 1982 |
| 109 | GLG Energy, L.P. | 9 | 9 | 9 | 1 | May 17, 1990 | Nov 29, 1990 |
| 110 | Kallina, Mitchell & Gulf Oil | 9 | 9 | 0 | 1 | Jun 29, 1977 | Dec 11, 1979 |
| 111 | Tidelands Gas Corporation | 9 | 9 | 0 | 1 | Feb 18, 1997 | Oct 14, 1999 |
| 112 | WCS Oil and Gas Corporation | 9 | 9 | 9 | 1 | Dec 19, 1989 | Apr 29, 1999 |
| 113 | Longhorn Gas Co., Inc. | 9 | 9 | 0 | 0 | Jun 8, 1978 | Jan 26, 1979 |
| 114 | Killam Oil Co., Ltd. | 8 | 8 | 7 | 4 | Oct 5, 2009 | Dec 20, 2016 |
| 115 | Basin Resources Corporation | 8 | 8 | 8 | 0 | Dec 15, 1989 | Apr 26, 1990 |
| 116 | Lewis Energy Corp. | 8 | 8 | 0 | 0 | Dec 31, 1980 | Sep 28, 1981 |
| 117 | Newman Brothers Drilling Company | 8 | 8 | 0 | 0 | Oct 18, 1984 | Mar 26, 1987 |
| 118 | Osborne Oil Co. | 8 | 8 | 0 | 0 | Jun 17, 1980 | Jun 17, 1980 |
| 119 | Patterson Petroleum LP | 8 | 8 | 7 | 0 | Oct 12, 2005 | Aug 7, 2007 |
| 120 | Terra Ferma Operating LLC | 8 | 8 | 6 | 0 | Sep 26, 2007 | Jul 30, 2008 |
| 121 | Hamilton Oil Inc. | 7 | 7 | 0 | 6 | Sep 6, 1996 | Dec 17, 1996 |
| 122 | Maverick Prod. Co. Inc. | 7 | 7 | 0 | 5 | May 8, 1978 | Dec 31, 1986 |
| 123 | Northwest Arkansas O & G Prod Co | 7 | 7 | 0 | 3 | Oct 14, 1977 | Mar 5, 1980 |
| 124 | Omni Operating Company(a) | 7 | 7 | 0 | 3 | Feb 21, 1997 | Feb 25, 1998 |
| 125 | R. K. G. Engineering, Inc. | 7 | 7 | 0 | 3 | Dec 19, 1978 | Jul 21, 1980 |
| 126 | Arrow Petroleum Company | 7 | 7 | 0 | 2 | Nov 29, 1978 | Feb 16, 1993 |
| 127 | Cavalier Oil & Gas, Inc. | 7 | 7 | 0 | 2 | Jan 30, 1998 | Aug 3, 1998 |
| 128 | Ingram, J. Oil & Gas Inc. | 7 | 7 | 5 | 1 | Sep 26, 1991 | Sep 10, 1993 |
| 129 | Little Oil & Gas, Inc. | 7 | 7 | 0 | 1 | Jan 11, 1984 | Sep 25, 1985 |
| 130 | Wagner, Duer & Co. | 7 | 7 | 0 | 1 | Jan 4, 1978 | May 23, 1978 |
| 131 | Ampak Oil Company | 7 | 7 | 6 | 0 | Jul 10, 2006 | Feb 11, 2009 |
| 132 | Petro Mar Drilling, Inc.****p-5 | 7 | 7 | 0 | 0 | Jun 9, 1980 | Jun 9, 1980 |
| 133 | Pinnacle Royalty & Operating Co. | 7 | 7 | 5 | 0 | May 1, 1989 | Oct 24, 1990 |
| 134 | Rio de Oro Oil & Gas Corp. | 7 | 7 | 0 | 0 | Oct 20, 1983 | Dec 19, 1984 |
| 135 | Spri Oil & Gas, LLC | 7 | 7 | 3 | 0 | Aug 18, 2017 | Dec 10, 2018 |
| 136 | Delray Oil, Inc. | 6 | 6 | 0 | 17 | Jul 10, 1986 | Mar 17, 1989 |
| 137 | Palmco Management Co. | 6 | 6 | 0 | 6 | Dec 5, 1977 | Sep 23, 1981 |
| 138 | Hawthorn Energy Partners, LLC | 6 | 6 | 6 | 5 | Nov 16, 2005 | Sep 12, 2006 |
| 139 | Pendragon Oil Co. | 6 | 6 | 5 | 1 | Mar 9, 1990 | Jan 18, 1991 |
| 140 | Double J Operating Company, Inc. | 6 | 6 | 3 | 0 | Aug 13, 1999 | Nov 12, 2002 |
| 141 | Forza Operating, LLC | 6 | 6 | 0 | 0 | Feb 6, 2014 | May 22, 2014 |
| 142 | Fossil Bay Petroleum, Inc. | 6 | 6 | 6 | 0 | Oct 30, 1989 | Feb 15, 1990 |
| 143 | General Prod. Corp. | 6 | 6 | 0 | 0 | Oct 23, 1980 | Dec 3, 1980 |
| 144 | Sable Environmental, LLC | 6 | 6 | 0 | 0 | Mar 26, 2013 | Aug 4, 2015 |
| 145 | Saxet Energy, Ltd. | 6 | 6 | 3 | 0 | Mar 14, 2003 | Jan 22, 2004 |
| 146 | Sigmor Corporation | 6 | 6 | 0 | 0 | Oct 21, 1977 | May 3, 1978 |
| 147 | Tide West Oil Company | 6 | 6 | 6 | 0 | Oct 12, 1990 | Sep 1, 1992 |
| 148 | Trans Delta Oil & Gas Co., Inc. | 6 | 6 | 0 | 0 | Dec 11, 1979 | May 9, 1980 |
| 149 | Tundra Operating LLC | 6 | 6 | 0 | 0 | Feb 6, 2014 | Dec 16, 2014 |
| 150 | Chaparral Energy Devl. Corp. | 5 | 5 | 0 | 17 | Aug 1, 1979 | Aug 19, 1980 |
| 151 | Cuatro Petro Corp. | 5 | 5 | 0 | 4 | May 4, 1995 | Jan 17, 2006 |
| 152 | Forney Oil Corporation | 5 | 5 | 0 | 3 | Nov 12, 1985 | Jan 22, 1991 |
| 153 | Cox & Perkins Exploration, Inc. | 5 | 5 | 5 | 2 | May 11, 1990 | Jun 2, 1992 |
| 154 | Dimmit County SWD, LLC | 5 | 5 | 0 | 2 | Jan 26, 2012 | Jun 12, 2015 |
| 155 | Cotton Petroleum Corp. | 5 | 5 | 0 | 1 | Oct 25, 1977 | Jan 19, 1979 |
| 156 | San Patricio Corporation | 5 | 5 | 0 | 1 | Feb 22, 1982 | May 26, 1983 |
| 157 | Activa Resources, LLC | 5 | 5 | 2 | 0 | Jul 27, 2018 | May 20, 2019 |
| 158 | Carrizo Oil & Gas, Inc. | 5 | 5 | 5 | 0 | May 11, 2011 | May 17, 2011 |
| 159 | Famcor Oil, Inc | 5 | 5 | 5 | 0 | Jan 18, 1990 | Feb 4, 1997 |
| 160 | Gas Producing Enterprises, Inc. | 5 | 5 | 0 | 0 | Aug 23, 1977 | Feb 5, 1980 |
| 161 | Great Basins Petr. Co. | 5 | 5 | 0 | 0 | Dec 9, 1977 | Jul 27, 1978 |
| 162 | Hartford Oil & Gas, Inc. | 5 | 5 | 3 | 0 | Nov 30, 1990 | Mar 14, 1991 |
| 163 | Longhorn Gas Co., Ltd. No. 2 | 5 | 5 | 0 | 0 | Nov 8, 1977 | Jan 6, 1978 |
| 164 | Nelms Bros. Oil Properties Inc. | 5 | 5 | 5 | 0 | Apr 25, 1990 | Aug 3, 1990 |
| 165 | Rio Exploration Company | 5 | 5 | 0 | 0 | Dec 14, 1981 | Apr 22, 2002 |
| 166 | Sotex Oil & Gas Corp. | 5 | 5 | 0 | 0 | Jun 2, 1981 | Nov 10, 1981 |
| 167 | White Marlin Operating Co, LLC | 4 | 4 | 0 | 68 | Oct 16, 2015 | Feb 11, 2019 |
| 168 | Exco Operating Company, LP | 4 | 4 | 4 | 48 | Nov 5, 2014 | Oct 25, 2024 |
| 169 | Botasch Operating, LLC | 4 | 4 | 1 | 12 | Jan 18, 2005 | Oct 4, 2008 |
| 170 | Lovelady, Ike Inc. | 4 | 4 | 0 | 4 | Jun 27, 1978 | Jun 16, 1981 |
| 171 | Enserch Exploration, Inc | 4 | 4 | 0 | 3 | Oct 24, 1977 | Jan 26, 1982 |
| 172 | Riley Exploration, LLC | 4 | 4 | 2 | 3 | Oct 14, 2010 | Apr 26, 2011 |
| 173 | Suemaur Corporation | 4 | 4 | 0 | 3 | Jun 23, 1980 | Apr 14, 1987 |
| 174 | Royal Oil & Gas Corp. | 4 | 4 | 3 | 2 | Sep 15, 1977 | Nov 27, 1990 |
| 175 | Tex-Hex Corp. | 4 | 4 | 3 | 2 | Aug 10, 1990 | Mar 26, 1991 |
| 176 | Continental Oil Company | 4 | 4 | 0 | 1 | Sep 21, 1977 | Oct 16, 1978 |
| 177 | H.D.P., Inc. | 4 | 4 | 3 | 1 | Jun 18, 1990 | Feb 4, 1991 |
| 178 | HMX Investments, Inc. | 4 | 4 | 0 | 1 | Apr 10, 1984 | May 7, 1987 |
| 179 | JB Oil & Gas Well Service | 4 | 4 | 3 | 1 | Jun 7, 2005 | Mar 6, 2015 |
| 180 | Windsor Exploration Company | 4 | 4 | 4 | 1 | Jul 16, 1990 | Sep 14, 1990 |
| 181 | American Exploration Company | 4 | 4 | 0 | 0 | Jan 4, 1990 | Nov 13, 1991 |
| 182 | Canusa Energy, Inc. | 4 | 4 | 0 | 0 | Sep 8, 1982 | Sep 27, 1983 |
| 183 | Coates, George H. Estate OF | 4 | 4 | 0 | 0 | Apr 16, 1979 | Nov 14, 1980 |
| 184 | Espada Energy, LLC | 4 | 4 | 4 | 0 | Apr 8, 2026 | Jun 12, 2026 |
| 185 | Hunter Petroleum Inc. | 4 | 4 | 4 | 0 | Dec 11, 1998 | Sep 20, 1999 |
| 186 | Killam Oil Company | 4 | 4 | 4 | 0 | May 4, 1990 | Jan 17, 1992 |
| 187 | McRae Horizontal Drilling, Inc. | 4 | 4 | 4 | 0 | Jan 10, 1991 | Aug 9, 1991 |
| 188 | Noble Energy, Inc. | 4 | 4 | 4 | 0 | Jul 23, 1990 | Aug 17, 1990 |
| 189 | Premier Minerals, Inc | 4 | 4 | 0 | 0 | Aug 24, 2000 | Jan 12, 2001 |
| 190 | Rockport Georgetown Holdings,lp | 4 | 4 | 4 | 0 | Jan 27, 2005 | Mar 8, 2005 |
| 191 | Safari Drilling Company | 4 | 4 | 0 | 0 | Jul 11, 1977 | Oct 4, 1977 |
| 192 | Sanchez-O'Brien Oil & Gas Corp. | 4 | 4 | 3 | 0 | May 24, 1990 | Mar 21, 1991 |
| 193 | Scully Energy Corporation | 4 | 4 | 0 | 0 | Oct 21, 2004 | Dec 1, 2006 |
| 194 | U.S. Horizontal Development Corp | 4 | 4 | 4 | 0 | Feb 22, 1990 | Aug 17, 1990 |
| 195 | Zaza Energy, LLC | 4 | 4 | 4 | 0 | Apr 5, 2011 | Jun 24, 2011 |
| 196 | Unitex Oil & Gas, L.L.C. | 3 | 3 | 0 | 28 | Oct 7, 2019 | Oct 7, 2019 |
| 197 | Magnolia Oil & Gas Operating LLC | 3 | 3 | 3 | 19 | Jan 21, 2026 | Jan 21, 2026 |
| 198 | Cico Oil & Gas Co. | 3 | 3 | 0 | 12 | Feb 18, 1981 | Nov 16, 1981 |
| 199 | Sutton Producing Corp. | 3 | 3 | 0 | 9 | Mar 27, 1978 | Jan 6, 1982 |
| 200 | Diamond Chemicals Company | 3 | 3 | 0 | 4 | Jul 7, 1977 | Jul 25, 1978 |
| 201 | Huisache Operating Co. | 3 | 3 | 0 | 4 | Aug 19, 1977 | Nov 29, 1977 |
| 202 | Janco Operating | 3 | 3 | 2 | 3 | Aug 11, 1989 | May 21, 1990 |
| 203 | Tipperary Oil & Gas Corporation | 3 | 3 | 0 | 3 | Nov 3, 1977 | Jun 24, 1980 |
| 204 | Dao Oil and Gas | 3 | 3 | 0 | 2 | Jan 8, 1993 | Jan 8, 1993 |
| 205 | Edisto Resources Corporation | 3 | 3 | 2 | 2 | Nov 12, 1990 | Jul 26, 1991 |
| 206 | Omni Petroleum Corporation | 3 | 3 | 3 | 2 | Sep 25, 1990 | Jan 22, 1992 |
| 207 | St. Mary Land & Exploration Co. | 3 | 3 | 3 | 2 | May 21, 2009 | Jun 9, 2009 |
| 208 | B & M Operating Co., Inc. | 3 | 3 | 0 | 1 | Nov 20, 1978 | May 28, 1982 |
| 209 | Bosque Disposal Systems, LLC | 3 | 3 | 0 | 1 | Aug 31, 2011 | Feb 14, 2012 |
| 210 | Dugger & Herring Drlg. Co., Inc. | 3 | 3 | 0 | 1 | Aug 11, 1977 | Jun 6, 1978 |
| 211 | Gamma Resources, Inc. | 3 | 3 | 0 | 1 | Jul 7, 1977 | Aug 23, 1977 |
| 212 | Liberty Production Co., Inc. | 3 | 3 | 0 | 1 | Apr 13, 1979 | Nov 17, 1981 |
| 213 | MKS Services, LLC | 3 | 3 | 0 | 1 | Sep 27, 2012 | Oct 30, 2018 |
| 214 | Now Environmental Solutions, LLC | 3 | 3 | 0 | 1 | Jul 19, 2018 | May 4, 2023 |
| 215 | Oasis Petroleum Corporation | 3 | 3 | 3 | 1 | Aug 29, 1990 | Mar 20, 1992 |
| 216 | Shield Petroleum | 3 | 3 | 3 | 1 | Jan 12, 1996 | Jan 12, 1996 |
| 217 | Ageron Energy, LLC | 3 | 3 | 3 | 0 | Feb 12, 2015 | Mar 20, 2018 |
| 218 | Alamo Operating Company, L. C. | 3 | 3 | 3 | 0 | May 28, 2010 | May 28, 2010 |
| 219 | Bay Rock Corp. | 3 | 3 | 0 | 0 | Dec 16, 1982 | Oct 17, 1983 |
| 220 | Bronco Z Production | 3 | 3 | 0 | 0 | Apr 2, 1997 | Dec 9, 1997 |
| 221 | Catarina Salt Water Disposal,llc | 3 | 3 | 0 | 0 | Dec 16, 2010 | Jan 6, 2011 |
| 222 | Convest Energy Corporation | 3 | 3 | 0 | 0 | Jun 28, 1977 | Dec 31, 1982 |
| 223 | Davis Oil Company | 3 | 3 | 0 | 0 | Aug 30, 1979 | Oct 9, 1981 |
| 224 | Dilley Production Co. | 3 | 3 | 0 | 0 | Dec 20, 1977 | Apr 5, 1978 |
| 225 | Ellington & Jones Resources, Inc | 3 | 3 | 3 | 0 | Oct 30, 1990 | Feb 8, 1991 |
| 226 | Enerco Exploration & Mgmt. Co. | 3 | 3 | 0 | 0 | Jul 20, 1977 | Jul 20, 1977 |
| 227 | Evergreen Oil Corporation | 3 | 3 | 0 | 0 | Oct 23, 1981 | Dec 1, 1981 |
| 228 | Gulf Oil Corp. | 3 | 3 | 0 | 0 | Jul 19, 1977 | Oct 19, 1981 |
| 229 | High Roller Wells, L.L.C. | 3 | 3 | 0 | 0 | Nov 25, 2014 | Jan 29, 2015 |
| 230 | Hurd Enterprises, Ltd. | 3 | 3 | 0 | 0 | May 26, 2006 | Jan 12, 2007 |
| 231 | Jennings Exploration Co. | 3 | 3 | 0 | 0 | Nov 24, 1981 | Sep 6, 1985 |
| 232 | JL Resources, LLC | 3 | 3 | 0 | 0 | Oct 17, 2013 | Apr 21, 2014 |
| 233 | Kallina, F. C. & Overly Oper. Co | 3 | 3 | 0 | 0 | Feb 29, 1984 | Feb 29, 1984 |
| 234 | Lovelady, I. W. | 3 | 3 | 0 | 0 | Jan 10, 1978 | Jun 2, 1978 |
| 235 | McRae Drilling, Inc. | 3 | 3 | 3 | 0 | Jun 4, 1990 | Jun 22, 1991 |
| 236 | Meridian Oil Inc. | 3 | 3 | 3 | 0 | Apr 19, 1990 | Apr 19, 1990 |
| 237 | Murphy Exploration & Prod. Co. | 3 | 3 | 3 | 0 | Feb 17, 2010 | Aug 30, 2010 |
| 238 | Opco, Inc. | 3 | 3 | 0 | 0 | Dec 15, 1977 | May 25, 1978 |
| 239 | Patterson Petroleum LLC | 3 | 3 | 3 | 0 | Jun 21, 2007 | Oct 16, 2007 |
| 240 | Peregrine Petroleum, LLC | 3 | 3 | 3 | 0 | May 20, 2010 | Feb 1, 2011 |
| 241 | Phillips and Spradley | 3 | 3 | 0 | 0 | Aug 20, 1980 | Dec 31, 1980 |
| 242 | Richman Petroleum Corp. | 3 | 3 | 0 | 0 | Sep 26, 1995 | Oct 17, 1995 |
| 243 | Santa FE-Andover Oil Company | 3 | 3 | 0 | 0 | Jul 29, 1977 | May 20, 1985 |
| 244 | Shar-Alan Oil Company | 3 | 3 | 0 | 0 | Jan 13, 1978 | Apr 3, 1978 |
| 245 | Sulo Oil Company | 3 | 3 | 0 | 0 | Mar 27, 1978 | Dec 28, 1978 |
| 246 | Three C Exploration, LLC | 3 | 3 | 3 | 0 | Jun 5, 2024 | Jun 27, 2024 |
| 247 | Tiburon Resources, Inc. | 3 | 3 | 0 | 0 | Aug 25, 2011 | Aug 25, 2011 |
| 248 | TXO Production Corp. | 3 | 3 | 0 | 0 | Oct 7, 1982 | Dec 11, 1984 |
| 249 | Whittier Operating Inc | 3 | 3 | 0 | 0 | Feb 18, 2003 | Nov 10, 2003 |
| 250 | Wilson, Don H., Inc. | 3 | 3 | 0 | 0 | May 23, 2002 | Aug 23, 2002 |
| 251 | Wolverine Exploration Company | 3 | 3 | 3 | 0 | Nov 20, 1989 | Mar 1, 1990 |
| 252 | TBM Catarina, LLC | 2 | 2 | 2 | 195 | Jun 15, 2026 | Jun 19, 2026 |
| 253 | H & M Resources, LLC | 2 | 2 | 0 | 8 | Jul 9, 2003 | Jul 9, 2003 |
| 254 | Glenco Oil & Gas Company | 2 | 2 | 0 | 6 | Mar 17, 1982 | May 26, 1982 |
| 255 | Texas Oil & Gas Corp. | 2 | 2 | 0 | 5 | Jun 8, 1978 | Sep 11, 1979 |
| 256 | Hughes, Dan A. Company | 2 | 2 | 2 | 4 | Mar 29, 1990 | Mar 29, 1990 |
| 257 | Beta Oil Corporation | 2 | 2 | 0 | 3 | May 11, 1983 | Jan 30, 1984 |
| 258 | Hughes Texas Petroleum, Ltd. | 2 | 2 | 0 | 3 | Nov 27, 1984 | Oct 15, 1986 |
| 259 | Winter Garden Supply, Inc. | 2 | 2 | 0 | 3 | Aug 11, 1977 | Aug 23, 1985 |
| 260 | Andover Oil Company | 2 | 2 | 0 | 2 | Apr 8, 1980 | Aug 14, 1980 |
| 261 | Black Mountain STX I LLC | 2 | 2 | 2 | 2 | Jan 10, 2022 | Mar 10, 2023 |
| 262 | Gardner Oil & Gas Co. | 2 | 2 | 0 | 2 | Oct 25, 1996 | Nov 18, 1996 |
| 263 | Petrotex Management Co. | 2 | 2 | 0 | 2 | Jun 30, 1977 | Aug 24, 1979 |
| 264 | Sandy SWD, LLC | 2 | 2 | 0 | 2 | Apr 22, 2011 | Apr 22, 2011 |
| 265 | Wilmoth Interests, Inc. | 2 | 2 | 0 | 2 | Oct 19, 1987 | Oct 19, 1987 |
| 266 | American Cometra, Inc. | 2 | 2 | 0 | 1 | May 9, 1990 | May 9, 1990 |
| 267 | Apache Corporation | 2 | 2 | 0 | 1 | Feb 5, 2001 | Jun 28, 2001 |
| 268 | Johnston, Jack M. | 2 | 2 | 0 | 1 | Jul 7, 1978 | Aug 1, 1978 |
| 269 | Jones, Harold E. | 2 | 2 | 0 | 1 | Dec 8, 1978 | Feb 13, 1979 |
| 270 | Kallina,frank C.&mitchell,o.r. | 2 | 2 | 0 | 1 | Oct 7, 1977 | Dec 6, 1977 |
| 271 | Kinlaw Oil Corporation | 2 | 2 | 2 | 1 | Nov 26, 1990 | Nov 26, 1990 |
| 272 | Moran Exploration, Inc. | 2 | 2 | 0 | 1 | Nov 21, 1980 | Nov 21, 1980 |
| 273 | Null, W.M. Operations, Inc. | 2 | 2 | 0 | 1 | Jul 2, 1996 | Nov 18, 1996 |
| 274 | Remora Operating, LLC | 2 | 2 | 2 | 1 | Feb 27, 2026 | Mar 3, 2026 |
| 275 | Republic Mineral Corporation | 2 | 2 | 0 | 1 | Dec 15, 1980 | Mar 23, 1982 |
| 276 | Roma Oil and Gas, Inc. | 2 | 2 | 0 | 1 | Sep 3, 1993 | Dec 8, 1993 |
| 277 | Select Energy Services, LLC | 2 | 2 | 0 | 1 | Feb 16, 2011 | Feb 16, 2011 |
| 278 | Texas Northeast Oil & Gas Co. | 2 | 2 | 0 | 1 | Aug 19, 1977 | Oct 6, 1977 |
| 279 | TX Energy Services, LLC | 2 | 2 | 0 | 1 | Jan 5, 2009 | Jul 18, 2013 |
| 280 | U. S. Resources-Catarina | 2 | 2 | 0 | 1 | Feb 27, 1978 | Mar 26, 1979 |
| 281 | 410 Production, Inc. | 2 | 2 | 0 | 0 | Dec 31, 1986 | Mar 27, 1987 |
| 282 | 714596 & 714602 SWD LP Ltd. | 2 | 2 | 0 | 0 | Apr 22, 2011 | Apr 22, 2011 |
| 283 | Abraxas Petroleum Corp. | 2 | 2 | 0 | 0 | Dec 7, 1981 | Feb 22, 1982 |
| 284 | Alcorn Prod Co. | 2 | 2 | 0 | 0 | Nov 14, 1986 | Apr 28, 1987 |
| 285 | Aransas Drlg & Workover Co Inc | 2 | 2 | 0 | 0 | Apr 4, 1995 | Aug 24, 1995 |
| 286 | Ayres, George C. | 2 | 2 | 0 | 0 | Dec 12, 1983 | May 21, 1984 |
| 287 | Basic Energy Services, L.P. | 2 | 2 | 0 | 0 | Mar 15, 2011 | Mar 21, 2018 |
| 288 | Bellows Operating Co., L. C. | 2 | 2 | 0 | 0 | May 23, 2011 | May 8, 2013 |
| 289 | Bommer Engineering Co. | 2 | 2 | 0 | 0 | Nov 14, 1980 | Aug 7, 1985 |
| 290 | Ces SWD Texas, Inc. | 2 | 2 | 0 | 0 | May 31, 2011 | Jun 3, 2011 |
| 291 | Chitty Well Service, Inc. | 2 | 2 | 0 | 0 | Apr 27, 1983 | Dec 19, 1984 |
| 292 | CLS Interests, Incorporated | 2 | 2 | 0 | 0 | Aug 15, 1994 | Nov 6, 1995 |
| 293 | Collier Diamond -C- Oils, Inc. | 2 | 2 | 0 | 0 | Aug 8, 1977 | Feb 13, 1978 |
| 294 | Columbia Gas Development Corp. | 2 | 2 | 2 | 0 | Nov 17, 1995 | Feb 1, 1996 |
| 295 | Daniel Oil Co. | 2 | 2 | 0 | 0 | Jun 5, 1979 | Feb 11, 1981 |
| 296 | Emerald Operating Company, Inc. | 2 | 2 | 2 | 0 | Jan 20, 2006 | Jun 28, 2007 |
| 297 | Epgt-Tex, L.P. | 2 | 2 | 0 | 0 | Nov 21, 2001 | Nov 21, 2001 |
| 298 | Forest Oil Corp. | 2 | 2 | 0 | 0 | Jun 16, 1977 | Jun 30, 1977 |
| 299 | Gambit Resources, Inc. | 2 | 2 | 2 | 0 | Feb 7, 2013 | Apr 4, 2013 |
| 300 | G & P Exploration, Inc. | 2 | 2 | 0 | 0 | Apr 26, 1983 | Oct 10, 1985 |
690 OPERATORS · THE 300 MOST ACTIVE SHOWN · WINDOW ON THE RRC ISSUE DATE