COUNTIES · WILLIAMSON · OPERATORS
Williamson 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 | Walker Operating Company | 12 | 12 | 0 | 0 | Jan 3, 2022 | May 23, 2024 |
| 2 | Beren, I. B. | 10 | 10 | 0 | 0 | Sep 14, 1981 | Oct 2, 1990 |
| 3 | R.D. Oil Company | 9 | 9 | 0 | 0 | Aug 18, 1982 | Sep 3, 1986 |
| 4 | Hooper, Richard R. | 8 | 8 | 0 | 0 | Apr 2, 1982 | Oct 18, 1983 |
| 5 | Chart - X Corporation | 7 | 7 | 0 | 0 | Sep 26, 1990 | Nov 12, 2002 |
| 6 | North Texas Energy,inc. | 6 | 6 | 0 | 12 | May 3, 2018 | Jul 11, 2024 |
| 7 | Black Jack Services, L.L.C. | 6 | 6 | 0 | 9 | Dec 27, 2004 | Oct 29, 2013 |
| 8 | Sun Expl. & Prod. Co.-Houston | 6 | 6 | 0 | 3 | Apr 27, 1982 | Aug 30, 1983 |
| 9 | JMR Resources LLC | 6 | 6 | 0 | 0 | Feb 15, 2012 | Feb 21, 2014 |
| 10 | Mkbm Oil Co. | 6 | 6 | 0 | 0 | Jun 14, 1979 | Feb 10, 1981 |
| 11 | Texas Oil Producing System, Inc. | 6 | 6 | 0 | 0 | Jul 1, 1981 | Dec 11, 1981 |
| 12 | Walters, G. C., Jr. | 6 | 6 | 0 | 0 | Nov 28, 1983 | Dec 9, 1983 |
| 13 | Cutrer Energy | 5 | 5 | 0 | 5 | Mar 30, 1984 | Nov 13, 1986 |
| 14 | Blackwell, Blackie | 5 | 5 | 0 | 0 | Feb 7, 1980 | Nov 9, 1988 |
| 15 | Hotco Energy Company | 5 | 5 | 0 | 0 | Aug 19, 2010 | May 10, 2012 |
| 16 | Tejas Energy | 5 | 5 | 0 | 0 | Sep 20, 1985 | Sep 18, 1986 |
| 17 | Thrall Operating Company, Inc. | 4 | 4 | 0 | 21 | Sep 15, 1994 | Sep 28, 1994 |
| 18 | Atmos Energy Corp., Mid-Tex Div. | 4 | 4 | 0 | 0 | Jun 8, 2007 | Oct 25, 2017 |
| 19 | Delta Six, Inc. | 4 | 4 | 0 | 0 | Jul 15, 1980 | Jan 14, 1981 |
| 20 | Eagle Assoc. Drlg.program 1984-A | 4 | 4 | 0 | 0 | May 11, 1984 | Nov 26, 1984 |
| 21 | Regal Petroleum Corp. | 4 | 4 | 0 | 0 | Mar 8, 1982 | Mar 8, 1982 |
| 22 | Spiller, H. G. | 4 | 4 | 0 | 0 | Apr 22, 1977 | Jul 18, 1977 |
| 23 | Wagner, Duer & Co. | 4 | 4 | 0 | 0 | Mar 17, 1978 | Mar 28, 1979 |
| 24 | Hidalgo Exploration & Prod. Co. | 3 | 3 | 0 | 1 | Feb 2, 2007 | Sep 26, 2008 |
| 25 | Aries Oil Corp. | 3 | 3 | 0 | 0 | Jul 13, 1979 | Nov 15, 1981 |
| 26 | Bowie Oil Company, Inc. | 3 | 3 | 0 | 0 | May 18, 1982 | Aug 31, 1982 |
| 27 | Callery Exploration Company | 3 | 3 | 0 | 0 | Jun 24, 1981 | Jul 30, 1981 |
| 28 | Goetz, C. G. Company, Inc. | 3 | 3 | 0 | 0 | May 21, 1984 | Oct 9, 1987 |
| 29 | Janak, Frank A.W. | 3 | 3 | 0 | 0 | Nov 25, 1981 | Jul 30, 1982 |
| 30 | Lewter, David A. | 3 | 3 | 0 | 0 | Aug 25, 1980 | Apr 1, 1981 |
| 31 | Malone Co. | 3 | 3 | 0 | 0 | Feb 10, 1981 | Feb 18, 1981 |
| 32 | Marsh Energy Resources, Inc. | 3 | 3 | 0 | 0 | Oct 14, 1983 | Oct 18, 1983 |
| 33 | New Era Petroleum, Inc. | 3 | 3 | 0 | 0 | Sep 24, 2014 | Oct 8, 2014 |
| 34 | Rambo Oil & Gas Co., Inc. | 3 | 3 | 0 | 0 | Jul 14, 1980 | Dec 5, 1980 |
| 35 | Secondary Oil Corp., Inc. | 3 | 3 | 0 | 0 | Aug 9, 1995 | Oct 20, 1995 |
| 36 | Wm C Raymond Oil and Gas, LLC | 3 | 3 | 0 | 0 | Feb 1, 2011 | Aug 29, 2011 |
| 37 | Bachmeyer, Marvin | 2 | 2 | 0 | 3 | Jun 23, 1977 | Jan 17, 1978 |
| 38 | Malish Operating, LLC | 2 | 2 | 0 | 2 | Sep 6, 2012 | Sep 20, 2012 |
| 39 | Bissell Operating LLC | 2 | 2 | 0 | 1 | Jan 20, 2012 | Jun 12, 2013 |
| 40 | Wells Drilling Co. | 2 | 2 | 0 | 1 | Aug 11, 1986 | Jun 19, 1989 |
| 41 | Atmos Pipeline - Texas | 2 | 2 | 0 | 0 | Feb 27, 2006 | May 29, 2014 |
| 42 | Clark Expl. & Prod., Co., Inc. | 2 | 2 | 0 | 0 | Aug 26, 1983 | Oct 13, 1983 |
| 43 | Coupland Exploration Company,inc | 2 | 2 | 0 | 0 | Oct 26, 1981 | Feb 17, 1983 |
| 44 | CRH Corporation | 2 | 2 | 0 | 0 | May 22, 1981 | Jun 2, 1981 |
| 45 | Driver, Jack G | 2 | 2 | 0 | 0 | Dec 15, 1981 | Dec 15, 1981 |
| 46 | Enterprise Products Operatingllc | 2 | 2 | 0 | 0 | Jun 5, 2020 | Aug 4, 2021 |
| 47 | Grace Oil & Gas Inc. | 2 | 2 | 0 | 0 | Jun 19, 1992 | Jun 19, 1992 |
| 48 | Hankamer, C. Douglas | 2 | 2 | 0 | 0 | Feb 19, 1985 | Dec 20, 1985 |
| 49 | Herzer, John F. and Anna Beth | 2 | 2 | 0 | 0 | Jan 3, 1980 | Jan 3, 1980 |
| 50 | Hurlbut & R.K.G. Eng., Inc. | 2 | 2 | 0 | 0 | Jul 11, 1978 | Jul 18, 1978 |
| 51 | Kaye Poth Oil Corp. | 2 | 2 | 0 | 0 | Aug 10, 1987 | Oct 27, 1987 |
| 52 | Lab-Resin, Inc. | 2 | 2 | 0 | 0 | Oct 28, 1980 | May 21, 1981 |
| 53 | Lehman Company | 2 | 2 | 0 | 0 | Dec 7, 1979 | Dec 18, 1980 |
| 54 | Logos Oil, Incorporated | 2 | 2 | 0 | 0 | Apr 29, 1982 | May 27, 1982 |
| 55 | M. A. Mueller Const. Co., Inc. | 2 | 2 | 0 | 0 | Sep 28, 2006 | Jul 31, 2014 |
| 56 | Martinets, Frank E. Jr. | 2 | 2 | 0 | 0 | Sep 12, 1977 | Jul 17, 1978 |
| 57 | Oil Creek Production Co. Inc. | 2 | 2 | 0 | 0 | Jun 24, 1993 | Apr 28, 1998 |
| 58 | Orisol Oil Co. | 2 | 2 | 0 | 0 | Jul 15, 1982 | Jul 15, 1982 |
| 59 | Outline Oil Corp. | 2 | 2 | 0 | 0 | Jan 16, 1984 | Jan 16, 1984 |
| 60 | Paf Exploration L.C. | 2 | 2 | 0 | 0 | Nov 10, 1999 | Nov 22, 2000 |
| 61 | Powell, J.C. Jr. | 2 | 2 | 0 | 0 | Jan 30, 1984 | Feb 10, 1984 |
| 62 | Rathbun Production Service Inc. | 2 | 2 | 0 | 0 | Apr 15, 1982 | Nov 9, 1982 |
| 63 | Seminole Pipeline Company | 2 | 2 | 0 | 0 | Feb 11, 1991 | Aug 7, 1991 |
| 64 | Smith, J. Bassett | 2 | 2 | 0 | 0 | Feb 9, 1998 | Aug 24, 1999 |
| 65 | Texas Secondary Oil Corporation | 2 | 2 | 0 | 0 | Sep 15, 2015 | Dec 29, 2015 |
| 66 | Trinity Brothers Energy, LLC | 2 | 2 | 0 | 0 | Sep 7, 2017 | Jan 30, 2018 |
| 67 | Winchester Oil & Gas LLC | 2 | 2 | 0 | 0 | Sep 15, 2015 | Sep 16, 2015 |
| 68 | Magnum Oilfield Services LLC | 1 | 1 | 0 | 17 | Mar 14, 2014 | Mar 14, 2014 |
| 69 | Black Hawk Production Co. | 1 | 1 | 0 | 1 | Sep 16, 1982 | Sep 16, 1982 |
| 70 | Patton Exploration, Inc. | 1 | 1 | 0 | 1 | Jun 4, 2008 | Jun 4, 2008 |
| 71 | Pryor, Arthur | 1 | 1 | 0 | 1 | Feb 19, 1985 | Feb 19, 1985 |
| 72 | A.G.A. Oil Co. | 1 | 1 | 0 | 0 | Oct 5, 1995 | Oct 5, 1995 |
| 73 | Altro Energy Resources, Inc. | 1 | 1 | 0 | 0 | Sep 6, 1985 | Sep 6, 1985 |
| 74 | Aspect Abundant Shale LP | 1 | 1 | 0 | 0 | Oct 15, 2008 | Oct 15, 2008 |
| 75 | Bachmeyer, Joe C. | 1 | 1 | 0 | 0 | Aug 17, 1981 | Aug 17, 1981 |
| 76 | Bar-Tex Crude Oils | 1 | 1 | 0 | 0 | Oct 30, 1980 | Oct 30, 1980 |
| 77 | Bartholomew, Paul P. | 1 | 1 | 0 | 0 | Nov 2, 1987 | Nov 2, 1987 |
| 78 | B & B Drilling Co. | 1 | 1 | 0 | 0 | Mar 22, 1985 | Mar 22, 1985 |
| 79 | BJ-Hughes Machinery Division | 1 | 1 | 0 | 0 | Sep 29, 1981 | Sep 29, 1981 |
| 80 | Caffey Oil & Gas, Inc. | 1 | 1 | 0 | 0 | Dec 14, 1983 | Dec 14, 1983 |
| 81 | Clark Operating Inc. | 1 | 1 | 0 | 0 | Jan 12, 1998 | Jan 12, 1998 |
| 82 | Consolidated Oil & Gas Co. | 1 | 1 | 0 | 0 | Jul 10, 1980 | Jul 10, 1980 |
| 83 | Data Energy Corporation | 1 | 1 | 0 | 0 | Jan 29, 1985 | Jan 29, 1985 |
| 84 | Dobos, James D. Corporation | 1 | 1 | 0 | 0 | Feb 22, 1984 | Feb 22, 1984 |
| 85 | Dugger & Herring Drlg. Co., Inc. | 1 | 1 | 0 | 0 | Mar 2, 1979 | Mar 2, 1979 |
| 86 | Durango Exploration, Inc. | 1 | 1 | 0 | 0 | Nov 30, 1984 | Nov 30, 1984 |
| 87 | Enterprise Products Operating LP | 1 | 1 | 0 | 0 | Jan 31, 2006 | Jan 31, 2006 |
| 88 | Ferguson, Ted R.,inc. | 1 | 1 | 0 | 0 | Dec 29, 1980 | Dec 29, 1980 |
| 89 | Finkelstein, Jack, Trustee | 1 | 1 | 0 | 0 | Feb 6, 1979 | Feb 6, 1979 |
| 90 | Flint Hills Resources, LC | 1 | 1 | 0 | 0 | Nov 21, 2022 | Nov 21, 2022 |
| 91 | Freedom Energy Corp. | 1 | 1 | 0 | 0 | May 21, 1981 | May 21, 1981 |
| 92 | Gay Hill Oil Company | 1 | 1 | 0 | 0 | Sep 8, 1983 | Sep 8, 1983 |
| 93 | Geophysical Exploration Corp. | 1 | 1 | 0 | 0 | Jul 21, 1986 | Jul 21, 1986 |
| 94 | Guardian Oil Company | 1 | 1 | 0 | 0 | Jul 12, 1977 | Jul 12, 1977 |
| 95 | Halifax Oil & Gas Company | 1 | 1 | 0 | 0 | Jun 3, 1981 | Jun 3, 1981 |
| 96 | H.A.M. Oil | 1 | 1 | 0 | 0 | Dec 15, 1983 | Dec 15, 1983 |
| 97 | Heartland Resources, Inc. | 1 | 1 | 0 | 0 | Sep 3, 1998 | Sep 3, 1998 |
| 98 | Henderson, Tom | 1 | 1 | 0 | 0 | Feb 27, 1978 | Feb 27, 1978 |
| 99 | Henscheid, Rufus | 1 | 1 | 0 | 0 | Jul 17, 1992 | Jul 17, 1992 |
| 100 | Houston Pet. Co. | 1 | 1 | 0 | 0 | Dec 30, 1983 | Dec 30, 1983 |
| 101 | Kaler Energy Corp | 1 | 1 | 0 | 0 | Aug 6, 2003 | Aug 6, 2003 |
| 102 | Kirby Exploration Company | 1 | 1 | 0 | 0 | Nov 7, 1980 | Nov 7, 1980 |
| 103 | Kubala Oil Company | 1 | 1 | 0 | 0 | Feb 9, 1982 | Feb 9, 1982 |
| 104 | Livingston Oil Co. | 1 | 1 | 0 | 0 | Jul 30, 1984 | Jul 30, 1984 |
| 105 | Lynch, W. W. | 1 | 1 | 0 | 0 | May 28, 1982 | May 28, 1982 |
| 106 | Maverick Prod. Co., Inc. | 1 | 1 | 0 | 0 | Aug 13, 2012 | Aug 13, 2012 |
| 107 | McCall and Company | 1 | 1 | 0 | 0 | Sep 27, 1984 | Sep 27, 1984 |
| 108 | Melissa Oil Company | 1 | 1 | 0 | 0 | Jan 25, 1983 | Jan 25, 1983 |
| 109 | M & S Oil Company | 1 | 1 | 0 | 0 | Sep 23, 1981 | Sep 23, 1981 |
| 110 | Mueller Engineering Corp. | 1 | 1 | 0 | 0 | Jul 23, 1985 | Jul 23, 1985 |
| 111 | Multipay Energy, Inc. | 1 | 1 | 0 | 0 | Dec 11, 1985 | Dec 11, 1985 |
| 112 | Natchez Drilling Company | 1 | 1 | 0 | 0 | Mar 7, 1984 | Mar 7, 1984 |
| 113 | Palm Petroleum Co. | 1 | 1 | 0 | 0 | Nov 2, 1983 | Nov 2, 1983 |
| 114 | Pecos Petroleum Corp. | 1 | 1 | 0 | 0 | Dec 18, 1981 | Dec 18, 1981 |
| 115 | Petro-Phoenix Corporation | 1 | 1 | 0 | 0 | Jun 11, 1984 | Jun 11, 1984 |
| 116 | Pumphrey, W. H. Jr. | 1 | 1 | 0 | 0 | Mar 1, 1979 | Mar 1, 1979 |
| 117 | Range Oil Corporation | 1 | 1 | 0 | 0 | Jan 17, 1983 | Jan 17, 1983 |
| 118 | Reagan Publishing Company | 1 | 1 | 0 | 0 | Nov 13, 1979 | Nov 13, 1979 |
| 119 | Reo Operating LLC | 1 | 1 | 0 | 0 | Feb 25, 2014 | Feb 25, 2014 |
| 120 | Rose, J. & Associates, Inc. | 1 | 1 | 0 | 0 | May 1, 1981 | May 1, 1981 |
| 121 | San Antonio Energy Corporation | 1 | 1 | 0 | 0 | Apr 1, 1982 | Apr 1, 1982 |
| 122 | Seagull Operating Co. Inc. | 1 | 1 | 0 | 0 | Dec 4, 1981 | Dec 4, 1981 |
| 123 | Shield Energy, Inc. | 1 | 1 | 0 | 0 | May 8, 1985 | May 8, 1985 |
| 124 | Southwestern Oil Co. | 1 | 1 | 0 | 0 | Jan 4, 1991 | Jan 4, 1991 |
| 125 | Stone, Wyatt O. Jr. | 1 | 1 | 0 | 0 | Sep 28, 1977 | Sep 28, 1977 |
| 126 | Structure Oil Co. | 1 | 1 | 0 | 0 | Jul 6, 1984 | Jul 6, 1984 |
| 127 | Sun Exploration & Production Co. | 1 | 1 | 0 | 0 | Jun 23, 1982 | Jun 23, 1982 |
| 128 | Sunoco Pipeline L.P. | 1 | 1 | 0 | 0 | May 4, 2012 | May 4, 2012 |
| 129 | Tara Petroleum Company | 1 | 1 | 0 | 0 | Oct 17, 1986 | Oct 17, 1986 |
| 130 | Thunderbird Petroleum Corp. | 1 | 1 | 0 | 0 | Jun 2, 1982 | Jun 2, 1982 |
| 131 | Txu Lone Star Pipeline | 1 | 1 | 0 | 0 | Jul 22, 2004 | Jul 22, 2004 |
| 132 | Ultra Oil & Gas, Inc. | 1 | 1 | 0 | 0 | Jul 7, 1992 | Jul 7, 1992 |
| 133 | U S Energy Corp. of Amer. Inc. | 1 | 1 | 0 | 0 | Jul 20, 2018 | Jul 20, 2018 |
| 134 | Van Valkenburgh, Norman P. | 1 | 1 | 0 | 0 | May 17, 1978 | May 17, 1978 |
| 135 | Voskamp Exploration, Inc. | 1 | 1 | 0 | 0 | Aug 29, 2001 | Aug 29, 2001 |
| 136 | Westin Oil Co. | 1 | 1 | 0 | 0 | Jun 9, 1987 | Jun 9, 1987 |
| 137 | Wilderness Expl. & Production Co | 1 | 1 | 0 | 0 | May 26, 1983 | May 26, 1983 |
| 138 | Wilhite Productions | 1 | 1 | 0 | 0 | May 31, 1990 | May 31, 1990 |
| 139 | Wilson Service Company | 1 | 1 | 0 | 0 | May 6, 1982 | May 6, 1982 |
| 140 | Window Operating Co., The | 1 | 1 | 0 | 0 | Sep 29, 2009 | Sep 29, 2009 |
| 141 | Wm C Raymond Oil and Gas LLC | — | 0 | 0 | 66 | — | — |
| 142 | Genesis Well Service | — | 0 | 0 | 52 | — | — |
| 143 | P&F Operations LLC | — | 0 | 0 | 17 | — | — |
| 144 | Sun Expl. & Prod. Co.-Corpus | — | 0 | 0 | 6 | — | — |
| 145 | Tracker Oil & Gas Inc. | — | 0 | 0 | 4 | — | — |
| 146 | Caddo Energy Co. Inc. | — | 0 | 0 | 3 | — | — |
| 147 | WMJ Enterprises Inc. | — | 0 | 0 | 3 | — | — |
| 148 | Aspect Energy LLC | — | 0 | 0 | 1 | — | — |
| 149 | Booth C. H. Tr. | — | 0 | 0 | 1 | — | — |
| 150 | H - a Energy Inc. | — | 0 | 0 | 1 | — | — |
| 151 | Mobile Production Systems Inc. | — | 0 | 0 | 1 | — | — |
| 152 | Pay-Dirt Petroleum | — | 0 | 0 | 1 | — | — |
| 153 | Thomas & Rogers | — | 0 | 0 | 1 | — | — |
153 OPERATORS · WINDOW ON THE RRC ISSUE DATE