COUNTIES · STARR · OPERATORS

Starr 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.

1 year 3 years 10 years All time

#	Operator	Permits	All time	Horizontal	Wells	First	Last
1	Sun Expl. & Prod. Co.-Corpus	422	422	0	218	May 21, 1979	Oct 4, 1988
2	Exxon Corp.	368	368	0	208	Jun 22, 1977	Aug 19, 1999
3	Oryx Energy Company	253	253	0	153	Jan 25, 1989	Feb 5, 1999
4	Conoco Inc.	208	208	0	116	Sep 10, 1979	Dec 31, 2002
5	Kerr-McGee Oil & Gas Onshore LLC	196	196	0	106	Jul 25, 1995	Feb 27, 2006
6	Fina Oil & Chemical Company	171	171	0	2	Feb 10, 1989	Dec 27, 2000
7	Texas Independent Explor., Inc.	150	150	0	18	Sep 28, 1988	Oct 1, 2002
8	Kerr-McGee Oil & Gas Onshore LP	147	147	0	32	Nov 23, 2005	Jan 20, 2011
9	Coastal Oil & Gas Corporation	144	144	2	2	Dec 10, 1985	Jun 25, 2001
10	Shell Western E&P	126	126	0	11	Oct 26, 1999	Dec 21, 2010
11	El Paso Production Oil & Gas Co.	110	110	0	2	May 5, 2000	May 17, 2006
12	Smith Production Inc.	99	99	0	4	Apr 9, 2003	Apr 26, 2019
13	Sun Exploration & Production Co.	98	98	0	211	Jun 10, 1977	Jun 23, 1989
14	Tenneco Oil Co.	93	93	0	53	Oct 31, 1977	Feb 23, 1989
15	Killam Oil Co., Ltd.	85	85	0	149	Feb 15, 2013	Feb 20, 2026
16	EOG Resources, Inc.	79	79	9	19	Jan 8, 2001	Apr 2, 2009
17	Samedan Oil Corporation	68	68	0	10	May 23, 1980	Nov 25, 2002
18	Shell Oil Company	62	62	0	11	Jun 22, 1977	Sep 23, 1982
19	Peoples Energy Prod.-TX, L.P.	59	59	0	0	Apr 13, 2001	Aug 8, 2007
20	OXY USA Inc.	55	55	0	32	Apr 18, 1988	Dec 16, 2016
21	Harkins & Company	55	55	0	7	Jun 2, 1977	Jan 29, 1990
22	Edge Petroleum Oper. Co., Inc.	52	52	0	3	Jan 9, 1998	Aug 5, 2010
23	Texaco Inc.	49	49	0	12	Jun 10, 1977	Aug 23, 1990
24	Legend Natural Gas III, LP	49	49	0	10	Jan 10, 2008	Aug 29, 2012
25	Sun Expl. & Prod. Co.-Houston	48	48	0	5	Nov 1, 1978	Jun 21, 1983
26	Hanson Minerals Co.	46	46	0	0	Nov 28, 1988	Dec 22, 1992
27	Sanchez-O'Brien Oil & Gas Corp.	44	44	0	0	Jan 28, 1991	Apr 6, 1998
28	Shell Western E&P Inc.	42	42	0	12	Feb 9, 1984	Mar 2, 2000
29	Neuhaus, V. F. Properties, Inc.	41	41	0	35	Mar 22, 1991	Mar 14, 2011
30	Transtexas Gas Corporation	41	41	0	4	May 11, 1995	Dec 4, 1997
31	Newgulf Petroleum, LLC	39	39	0	6	Jul 24, 2000	Dec 16, 2014
32	Trap Rock Oil, Ltd.	38	38	0	66	Jan 13, 2006	Sep 21, 2018
33	El Paso E & P Company, L. P.	37	37	0	12	Feb 9, 2006	Oct 14, 2011
34	Tasca Exploration Company	36	36	0	11	Dec 30, 1983	Dec 29, 2000
35	Houston Exploration Company, The	36	36	0	1	Feb 10, 2006	Apr 10, 2007
36	Continental Oil Company	34	34	0	53	Jun 24, 1977	Jun 12, 1979
37	Corpus Christi Oil & Gas Co.	33	33	0	28	Jun 10, 1977	Oct 26, 1987
38	Thorp Petroleum Corporation	33	33	0	1	Nov 22, 2000	Aug 27, 2008
39	Duty Tool Company	33	33	0	0	Apr 10, 1978	Feb 2, 1983
40	Totalfinaelf E&P USA Inc	31	31	0	5	Sep 9, 1999	Jul 7, 2003
41	M. J. G., Inc.	31	31	0	3	Feb 25, 1997	Jun 28, 2001
42	Samson Lone Star LP	30	30	0	6	Jun 7, 2002	Jul 26, 2006
43	Forest Oil Corporation	28	28	0	31	Dec 7, 1987	Apr 11, 2012
44	Wagner, Duer & Co.	27	27	0	17	Aug 17, 1984	May 2, 1996
45	Mueller Engineering Corp.	27	27	0	14	May 12, 1980	Aug 28, 1998
46	Legacy Corporation, The	27	27	0	6	Dec 5, 1994	Apr 14, 1997
47	Wynn-Crosby Energy, Inc.	27	27	0	2	May 2, 1996	Jan 6, 2005
48	Mortimer Exploration Company	26	26	0	6	Nov 27, 1985	Jun 22, 2001
49	Mortimer Production Company	24	24	0	56	Dec 30, 2003	Jun 14, 2024
50	Total E&P USA, Inc.	24	24	0	8	Dec 10, 2003	Nov 8, 2005
51	Exaro Energy II, LLC	24	24	0	7	Jan 29, 2010	May 18, 2012
52	Carrizo Oil & Gas, Inc.	24	24	0	6	Jan 30, 1996	Jan 5, 2004
53	Milagro Exploration, LLC	24	24	0	3	Mar 19, 2008	May 15, 2014
54	Cabot Petroleum Corporation	24	24	0	1	Sep 10, 1984	Jan 10, 1989
55	Glenn, Wayne E. & Assoc., Inc.	24	24	0	0	Jul 6, 1988	Jan 16, 2003
56	Cameron, Paul E., Jr., Inc.	23	23	0	20	Nov 25, 1980	Feb 20, 1997
57	Merit Energy Company	22	22	0	649	Aug 27, 1991	Jan 9, 2025
58	Enron Oil & Gas Company	22	22	0	2	Sep 17, 1993	Dec 17, 1997
59	Hilcorp Energy Company	21	21	0	286	Jun 17, 2013	Jun 5, 2020
60	Neuhaus, V. F.	21	21	0	13	Jun 7, 1977	Jul 26, 1984
61	Suemaur Exploration, Inc.	20	20	0	5	Mar 18, 1985	Jun 19, 1997
62	Ascent Energy, Inc	20	20	0	0	Aug 27, 1997	Dec 10, 2004
63	Bass Enterprises Production Co.	20	20	0	0	Jul 24, 1996	Mar 31, 2004
64	Hughes, Dan A. Company	19	19	0	2	Apr 13, 1995	Aug 4, 2005
65	Metano Energy, LP	19	19	0	0	Oct 24, 2003	Oct 5, 2007
66	Kebo Oil & Gas, Inc.	18	18	0	11	Jun 27, 1990	Jun 9, 2008
67	Coates Energy Trust	18	18	0	2	Aug 29, 1980	Jul 30, 1997
68	Manges, Clinton	17	17	0	3	Sep 8, 1977	Nov 18, 1985
69	Exxon Mobil Corporation	16	16	0	84	Jun 25, 1999	Nov 9, 2007
70	Osborn Heirs Company	16	16	0	42	Aug 7, 1981	Feb 19, 1991
71	TXO Production Corp.	16	16	0	2	Dec 31, 1981	Mar 12, 1987
72	Wright Brothers Energy, Inc.	16	16	0	2	Sep 12, 1986	May 2, 1996
73	Tri-C Resources, Inc.	16	16	0	1	May 30, 1996	Apr 8, 1999
74	Union Pacific Resources Company	16	16	0	1	Dec 8, 1987	Apr 29, 1991
75	Lynx Energy Company, Inc.	16	16	0	0	Feb 27, 1998	Jan 2, 2001
76	Republic Oil & Gas Corp.	16	16	0	0	Oct 19, 1979	Apr 30, 1982
77	Hanson Production Company	15	15	0	21	Jul 23, 1993	May 16, 2000
78	Starco Exploration, Inc.	15	15	0	11	Sep 23, 1983	May 1, 2000
79	Star of Texas Energy Srvs, Inc.	15	15	0	7	Aug 12, 1997	May 12, 2003
80	Headington Oil Company, L.P.	15	15	0	3	Mar 26, 2002	Apr 3, 2006
81	Linder Oil Company,a Partnership	15	15	2	1	Apr 28, 1995	Sep 14, 1999
82	Bluestone Natural Res. II, LLC	15	15	1	0	Feb 4, 2014	Aug 24, 2018
83	Texas Independent Explor Ltd.	14	14	0	20	Jan 24, 2003	Jan 25, 2023
84	White Oak Operating Company LLC	14	14	0	8	Mar 12, 2003	Feb 5, 2019
85	Apache Corporation	14	14	0	5	Aug 25, 2011	Feb 11, 2014
86	Eads Operating Co.	14	14	0	3	May 7, 1982	Jul 30, 1985
87	Ascent Operating, LP	14	14	0	1	Jan 13, 2005	Sep 23, 2008
88	Border Exploration Co.	14	14	0	0	Jun 17, 1980	Feb 28, 1986
89	Lpes, Inc.	13	13	0	3	Aug 31, 2009	Mar 6, 2015
90	KA Energy OP Co. LLC	13	13	0	0	May 26, 2017	Nov 15, 2017
91	Noble Energy Inc	12	12	0	17	Mar 26, 2003	Jul 20, 2011
92	J. & M. Well Service, Inc.	12	12	0	15	Oct 26, 1977	Oct 9, 1987
93	Amax Oil & Gas Inc.	12	12	0	3	Jun 27, 1990	Mar 15, 1994
94	Coronado Energy E&P Company, LLC	12	12	0	2	Nov 16, 2007	Mar 16, 2009
95	D.Y. Exploration, Inc.	12	12	0	2	Dec 20, 1988	Mar 30, 2009
96	Agco Petroleum Company	12	12	0	0	Jan 7, 1986	Feb 18, 1987
97	Touchstone Resources USA, Inc.	12	12	0	0	Nov 10, 2003	Jan 5, 2005
98	Wagner Oil Company	11	11	0	168	Jul 13, 2006	Dec 20, 2019
99	Reh Energy, Inc.	11	11	0	20	Oct 24, 1995	Jun 19, 2001
100	Osborn,w.b. Oil & Gas Operations	11	11	0	8	May 11, 1983	May 31, 2024
101	Fischer Petroleum Corporation	11	11	0	7	Oct 28, 1977	Jul 3, 1981
102	Jones, J. Paul	11	11	0	4	Dec 2, 1980	Oct 24, 1984
103	Ram Operating Company, Inc.	11	11	0	1	Aug 28, 1991	Jul 29, 2010
104	Gruy Mgmt. Service Co.	11	11	0	0	Jan 26, 1981	Jun 22, 1984
105	Integrated Operating Corporation	10	10	0	15	Mar 4, 1997	May 16, 2006
106	Hughes & Hughes	10	10	0	6	Aug 16, 1977	Apr 27, 1981
107	Alpha Omega Petroleum, Inc.	10	10	0	1	Apr 19, 1989	Jan 18, 1994
108	Hughes, Dan A. Company, L.P.	10	10	0	0	Oct 24, 2008	Feb 24, 2016
109	Strata Operating, Inc.	10	10	0	0	Apr 3, 2012	Apr 14, 2020
110	Dinero Oil Corporation	9	9	0	9	Aug 6, 1982	Dec 2, 1983
111	Dewbre Petroleum Corporation	9	9	0	7	May 19, 2000	Nov 19, 2018
112	Cantera Operating, LLC	9	9	0	5	Nov 15, 2013	Jul 20, 2015
113	Pyle Petroleum	9	9	0	2	Feb 2, 1978	Dec 17, 1992
114	Quisto Expl. & Production, L.C.	9	9	0	2	Aug 4, 1995	Aug 28, 1996
115	Rlu Operating, LLC	9	9	0	2	Jan 25, 2011	Jul 7, 2017
116	Cox Oil & Gas, Inc.	9	9	0	1	Mar 20, 1986	Jul 9, 1991
117	Goldking Prod. Co.	9	9	0	1	Oct 19, 1983	Feb 26, 1985
118	Evans, Julian	9	9	0	0	May 15, 1985	Aug 21, 1987
119	Huffco Petroleum Corporation	9	9	0	0	May 26, 1983	Nov 4, 1985
120	Doran Energy Corporation	8	8	0	6	May 20, 1982	Nov 4, 1983
121	Carter Exploration Company	8	8	0	3	Nov 8, 1977	Nov 20, 1981
122	Champlin Petroleum Co.	8	8	0	3	Jan 13, 1978	Nov 21, 1985
123	Coates, George H. Estate Of	8	8	0	3	Sep 15, 1977	May 23, 1980
124	Energy Development Corp.	8	8	0	2	Oct 12, 1989	Jan 21, 1998
125	Hand, Kenneth R.	8	8	0	2	May 6, 1981	May 17, 1983
126	Petrohawk Operating Company	8	8	0	2	Dec 10, 2004	Sep 21, 2007
127	Epstein, Edwin a Jr Oper Co Inc	8	8	0	0	May 10, 1996	May 12, 2000
128	Hunter Petroleum Inc.	8	8	0	0	Nov 3, 1983	Oct 9, 2008
129	Newfield Exploration Company	8	8	0	0	Mar 25, 2004	Dec 9, 2010
130	Reveille Resources	8	8	0	0	Aug 12, 2008	Oct 29, 2009
131	Greenbrier Oper. Co.	7	7	0	5	Apr 11, 1994	May 10, 1999
132	Texas Oil & Gas Corp.	7	7	0	5	Sep 16, 1977	Feb 4, 1981
133	BNP Petroleum Corporation	7	7	0	3	Jun 21, 1999	Apr 10, 2002
134	Kerr-McGee Corporation	7	7	0	3	Apr 29, 1998	Jul 22, 1999
135	Natural Gas Gatherers	7	7	0	3	Mar 1, 1978	Dec 4, 1985
136	Egan-Wilson Petroleum, Inc.	7	7	0	1	Jan 19, 1979	Nov 21, 1980
137	Opex Energy, LLC	7	7	0	1	Mar 10, 2005	Mar 21, 2006
138	Bommer Engineering Co.	7	7	0	0	Mar 18, 2004	Jan 23, 2006
139	Duval County Ranch Co.	7	7	0	0	Jul 22, 1977	Sep 6, 1977
140	Legend Natural Gas IV, LP	7	7	0	0	Jan 3, 2012	Jul 27, 2012
141	Maddux, Elizabeth H.	7	7	0	0	Nov 27, 1984	Oct 28, 1987
142	Phillips, Richard	7	7	0	0	Apr 23, 1979	Sep 9, 1980
143	Hawn Brothers	6	6	0	5	Jan 9, 1979	Sep 30, 1983
144	Royal Production Company, Inc.	6	6	0	4	Oct 14, 2014	Jun 7, 2024
145	BPL Exploration, Ltd.	6	6	0	3	Aug 25, 2005	Aug 10, 2007
146	True Oil Company	6	6	0	3	Dec 1, 1982	Mar 16, 1988
147	Conocophillips Company	6	6	0	2	Mar 19, 2003	Jul 21, 2003
148	Pogo Producing Company LLC	6	6	0	2	May 30, 2007	Aug 1, 2011
149	Alcorn Prod Co.	6	6	0	1	Mar 15, 1984	Jul 27, 1987
150	Dominion Expl. & Prod., Inc.	6	6	0	1	Oct 2, 2000	Apr 30, 2004
151	Douglas Petroleum, Inc.	6	6	0	1	Jun 10, 1983	Dec 3, 1984
152	Fargo Trading Co., Inc.	6	6	0	1	Sep 20, 1984	Oct 7, 1985
153	Frost Energy Company	6	6	0	1	Mar 10, 1983	Nov 21, 1984
154	KTX Management Co.	6	6	0	1	Jun 9, 1983	Oct 16, 1985
155	Mark IV Energy	6	6	0	1	Sep 18, 1984	Aug 18, 1987
156	Southwest Oil & Land, Inc.	6	6	0	1	Aug 17, 1979	Feb 4, 1997
157	Belco Operating Corp.	6	6	0	0	Sep 23, 1996	Dec 4, 1997
158	Headington Oil Company	6	6	0	0	Apr 12, 1993	Oct 21, 1996
159	Neuhaus, V. F. Properties	6	6	0	0	Feb 21, 1983	Apr 26, 1990
160	San Patricio Corporation	6	6	0	0	Jan 30, 1987	Dec 18, 1990
161	Sarrita Oil Co., Inc.	6	6	0	0	Jan 4, 1980	Mar 19, 1985
162	South Texas Limited Partnership	6	6	0	0	May 14, 1993	Jul 26, 1993
163	Tesoro Expl. & Prod. Company	6	6	0	0	Dec 28, 1989	Apr 23, 1991
164	Trap Rock Oil Company	6	6	0	0	Jan 22, 2004	Aug 11, 2004
165	Waters Eng. & Operating, Inc.	6	6	0	0	Aug 27, 1991	Jan 11, 1994
166	Ladd Petroleum Corp.	5	5	0	10	Aug 4, 1983	Apr 9, 1985
167	L & B Oil and Gas Equipment, LLC	5	5	0	9	Oct 12, 2005	Jul 31, 2019
168	Kimmell, C. E.	5	5	0	7	Nov 2, 1977	Oct 7, 1980
169	Lemarco Operating, Inc.	5	5	0	5	Apr 8, 1988	Jun 27, 1991
170	Ceniza Petroleum, Inc.	5	5	0	4	Aug 9, 1989	Feb 7, 2000
171	Newman Operating Company	5	5	0	4	May 24, 1989	Oct 16, 1996
172	Akm Company	5	5	0	3	Jun 4, 1985	Jun 30, 1988
173	Lanita Oil, LLC	5	5	0	3	Jan 10, 2014	Feb 9, 2018
174	Ricochet Energy, Inc.	5	5	0	3	Oct 10, 2000	Mar 25, 2009
175	Howard Exploration, Inc.	5	5	0	2	Jul 16, 1996	Jan 28, 2014
176	Trailway Oil Company	5	5	0	2	Dec 27, 1984	Jul 2, 1985
177	J-O'B Operating Company	5	5	0	1	Jun 28, 1985	Oct 4, 1988
178	Albrecht, Cecil	5	5	0	0	Mar 1, 1979	Nov 5, 1980
179	Bison Energy Partners, Inc.	5	5	0	0	Jun 8, 1999	Dec 13, 1999
180	Carl, W. E.-Hawn Bros.	5	5	0	0	Oct 4, 1977	Mar 28, 1979
181	Christico Petroleum Company	5	5	0	0	Apr 27, 1992	May 6, 1994
182	Cox, Edwin L. & Cox, Berry R.	5	5	0	0	Aug 21, 1981	Oct 17, 1985
183	McDonald & Johnson Resources,llc	5	5	0	0	Oct 9, 2007	Sep 6, 2008
184	Paladin-Hayes, L.L.C.	5	5	0	0	May 14, 1997	Feb 17, 1998
185	Pearl Energy L.L.C.	5	5	0	0	Jan 22, 1999	Nov 7, 2001
186	Rand - Paulson Oil Company, Inc.	5	5	0	0	May 5, 1997	Oct 13, 1997
187	Rosbar, Inc.	5	5	0	0	May 3, 1978	Oct 20, 1983
188	Starr County Exploration, Inc.	5	5	0	0	Jun 28, 1994	Jan 29, 1996
189	Sue-Ann Oil & Gas Company	5	5	0	0	Feb 13, 1985	Nov 13, 1985
190	McGuffin, D. B.	4	4	0	24	Sep 18, 1978	Jun 3, 1981
191	Triad O&G, LLC	4	4	0	7	Feb 8, 2024	Mar 27, 2026
192	Crockett, M. W.	4	4	0	6	Jun 13, 1977	Apr 4, 1978
193	Pitco Investments, Ltd.	4	4	0	4	Mar 18, 2003	Nov 6, 2003
194	Acock/Anaqua Operating Co., LP	4	4	0	2	Nov 13, 2003	Aug 29, 2005
195	Barrett Brothers Oil & Gas, Inc.	4	4	0	2	Jan 16, 1998	Apr 11, 2001
196	Henderson Petroleum Corporation	4	4	0	2	Jun 24, 1986	Jul 20, 1993
197	Mayfair Minerals, Inc.	4	4	0	2	Jan 6, 1978	May 10, 1988
198	Bradbury, Donald Keith	4	4	0	1	Dec 2, 1977	Oct 30, 1979
199	Cordele Development Corporation	4	4	0	1	Apr 7, 1993	Jun 13, 1996
200	Prolithic Energy Company, L.P.	4	4	0	1	Oct 14, 1999	Jul 18, 2001
201	Bright & Co.	4	4	0	0	Oct 7, 1980	Sep 9, 1988
202	Colo Construction Co., Inc.	4	4	0	0	Jun 9, 2003	Aug 25, 2003
203	Crystal Oil Company	4	4	0	0	Feb 10, 1978	Oct 9, 1979
204	Drillmar Operating Company	4	4	0	0	Jun 29, 2006	Dec 23, 2008
205	Eads Exploration, Inc.	4	4	0	0	Dec 22, 1980	Oct 30, 1981
206	Killam Oil Company	4	4	0	0	Oct 4, 1985	Sep 1, 1987
207	L & F Drilling Co., Inc. (1)	4	4	1	0	Feb 13, 1989	Apr 5, 1993
208	Navajo Exploration, Inc.	4	4	0	0	May 27, 1993	May 16, 1994
209	Patterson Energy Corporation	4	4	0	0	Sep 17, 2012	Aug 12, 2016
210	Reveille Resources (Texas), Inc.	4	4	0	0	May 17, 2010	Jul 11, 2011
211	Sanders, Howard Kenneth	4	4	0	0	Feb 13, 1979	Aug 7, 1979
212	Sarrita Oil Co., Inc. & Shefts	4	4	0	0	Dec 30, 1981	Jun 15, 1982
213	Shana Petroleum Company	4	4	0	0	Jul 9, 1998	Apr 27, 2000
214	Silver Falls Petroleum Corp.	4	4	0	0	Oct 6, 1983	Oct 6, 1983
215	Texaco E & P Inc.	4	4	0	0	Feb 10, 1992	Jan 19, 1994
216	WJW Operating Co.,llc	4	4	0	0	Dec 20, 1999	Feb 22, 2001
217	Osborn, W. B. Operator	3	3	0	8	Oct 26, 1978	Aug 6, 1980
218	Pyle Petroleum Inc.	3	3	0	7	Oct 9, 1997	May 3, 1999
219	Energy Reserves Group, Inc.	3	3	0	6	Sep 15, 1977	Jul 13, 1983
220	Falcon Production Co.	3	3	0	6	Oct 24, 1991	Jul 22, 1992
221	Duty Oil Co.	3	3	0	5	Apr 20, 1990	Aug 19, 1991
222	TNT Petroleum Company, Inc.	3	3	0	4	Oct 1, 1987	Nov 24, 1992
223	Dahco Operating, LLC	3	3	0	3	Dec 2, 2020	Jan 23, 2024
224	Tepee Petroleum Co., Inc.	3	3	0	3	Aug 26, 2002	Oct 15, 2004
225	Valor Energy, LLC	3	3	0	3	May 10, 2017	Jun 28, 2018
226	Cimarron Engineering Corp.	3	3	0	2	Nov 16, 1992	Jun 7, 2005
227	Kelly-Brock	3	3	0	2	Nov 17, 1977	Aug 7, 1984
228	Modern Exploration, Inc.	3	3	0	2	Sep 23, 1983	Apr 26, 2018
229	Pg&e Resources Company	3	3	0	2	May 3, 1993	Jul 15, 1993
230	Toma Oil & Gas, Inc.	3	3	0	2	Sep 21, 1987	Jul 28, 1995
231	Carnes Exploration Company	3	3	0	1	May 23, 1990	Dec 19, 1990
232	Cico Oil & Gas Company	3	3	0	1	Feb 27, 2009	Mar 15, 2011
233	Cockrell Corp.	3	3	0	1	Dec 2, 1977	Apr 27, 1979
234	Macero Minerals, Inc.	3	3	0	1	Oct 11, 1977	Oct 26, 1978
235	Monsanto Company	3	3	0	1	Mar 15, 1982	May 21, 1982
236	V/J Oil Company	3	3	0	1	Mar 4, 1996	Feb 18, 1997
237	Abraxas Petroleum Corp.	3	3	0	0	Aug 1, 1983	Apr 18, 1984
238	Acock Engineering & Assoc., Inc.	3	3	0	0	Nov 17, 1993	Feb 24, 1998
239	Black Gold Petroleum, LLC	3	3	0	0	Dec 19, 2018	Jun 1, 2021
240	BT Operating Co.	3	3	0	0	Feb 24, 1986	Jun 12, 1990
241	Carl, W. E.	3	3	0	0	Feb 26, 1980	Mar 25, 1980
242	Cities Service Company	3	3	0	0	Sep 26, 1978	Apr 24, 1979
243	Comstock Oil & Gas, Inc.	3	3	0	0	Oct 14, 2002	Jan 7, 2004
244	Gco Mineral Company	3	3	0	0	Oct 29, 1981	Oct 29, 1981
245	Kenyon Exploration, Inc.	3	3	0	0	Aug 8, 1984	May 6, 1985
246	Metano Energy III, LP	3	3	1	0	Jun 14, 2018	Sep 4, 2018
247	Monsanto Oil Company	3	3	0	0	Mar 11, 1983	Dec 17, 1985
248	Quintana Pet. Corp.	3	3	0	0	Oct 5, 1993	Aug 26, 1994
249	Sue-Ann Operating Co.	3	3	0	0	Jan 22, 1980	Jan 22, 1980
250	Tesoro E&P Company, L.P.	3	3	0	0	Apr 14, 1997	Aug 17, 1998
251	Varn Petroleum Co.	3	3	0	0	Feb 2, 1979	Mar 5, 1979
252	Ventanna Properties, Inc.	3	3	0	0	Mar 30, 1993	Sep 22, 1993
253	Wincan, Inc.	3	3	0	0	Jun 11, 1986	May 19, 1989
254	Southern Tejas Asset Group LLC	2	2	0	29	Mar 1, 2022	Jul 31, 2024
255	Petro-Hunt Corporation	2	2	0	10	Mar 18, 1996	Jul 2, 1996
256	Sinclair Minerals, Inc.	2	2	0	6	Nov 5, 1986	Jan 9, 1987
257	Hope, Alvin C. Estate Of	2	2	0	4	Jan 22, 1979	Feb 14, 1979
258	Reserve Operating Corp.	2	2	0	4	Aug 28, 1996	Jun 7, 2005
259	Buss Oilfield Services, Inc.	2	2	0	3	Sep 25, 1981	Jan 4, 1982
260	Comstock Oil & Gas, LP	2	2	0	3	Nov 15, 2004	Jan 26, 2007
261	Flournoy Production Co.	2	2	0	3	Apr 25, 1980	Nov 1, 1995
262	Hunter Petroleum Inc.	2	2	0	3	Sep 15, 1983	Oct 20, 1983
263	Mueller Exploration, Inc.	2	2	0	3	Sep 2, 2025	Jan 5, 2026
264	Hamon, Jake L.	2	2	0	2	Jun 14, 1977	Sep 16, 1983
265	KCS Resources, Inc.	2	2	0	2	Aug 1, 1994	Sep 21, 1994
266	Southern Resource Company	2	2	0	2	Sep 19, 1986	Nov 10, 1988
267	Anglo Production Company	2	2	0	1	Apr 1, 1982	Apr 1, 1982
268	Beach Exploration, Inc.	2	2	0	1	Oct 7, 1988	Sep 21, 1989
269	Bse Production Co.	2	2	0	1	May 18, 1987	Nov 16, 1987
270	Burns Petroleum	2	2	0	1	Jan 26, 1978	May 23, 1978
271	Cummins & Walker Oil Co., Inc.	2	2	0	1	Mar 28, 1979	Dec 28, 1979
272	Double Play Oil & Gas, Inc	2	2	0	1	Jan 21, 2005	May 10, 2005
273	Fox, Hewitt B., Inc.	2	2	0	1	Jan 17, 1980	Sep 3, 1985
274	Gerner, W.L.	2	2	0	1	Mar 11, 1980	Oct 3, 1980
275	Overton Park Oil & Gas LP	2	2	0	1	Jul 15, 2022	Sep 1, 2022
276	Petroleum Corporation of Texas	2	2	0	1	Jul 7, 1977	Mar 3, 1978
277	Raptor Resources, Inc.	2	2	0	1	May 2, 2002	Dec 11, 2002
278	Rincon Petroleum Corporation	2	2	0	1	Jan 14, 2014	Apr 2, 2019
279	Sue-Ann Production Company	2	2	0	1	Apr 18, 1990	Jul 5, 1990
280	Belco Energy Corp.	2	2	0	0	Jan 20, 2000	Feb 8, 2000
281	B & M Operating Co., Inc.	2	2	0	0	Dec 17, 1980	Mar 19, 1981
282	Brady Production Company	2	2	0	0	Feb 28, 1978	Feb 20, 1980
283	Cities Service Oil & Gas Corp.	2	2	0	0	Nov 12, 1985	Jul 14, 1986
284	Clover Energy Corporation	2	2	0	0	Sep 14, 1977	Sep 14, 1977
285	Da Crowe & Associates, Inc	2	2	0	0	Apr 30, 2003	Aug 27, 2003
286	Ellsworth, H. P. O&G Properties	2	2	0	0	Feb 4, 1992	Apr 11, 1994
287	Enterprise Products Operatingllc	2	2	0	0	Jun 28, 2010	Oct 9, 2023
288	Esenjay Petroleum Corp.	2	2	0	0	Dec 30, 1993	Apr 25, 1995
289	Genesis Petroleum Corporation	2	2	0	0	Jul 22, 1985	Aug 5, 1985
290	Graham Royalty, Ltd.	2	2	0	0	Apr 20, 1990	Aug 7, 1991
291	Guaranty Petroleum Corp.	2	2	0	0	Apr 8, 1993	Feb 9, 1999
292	Hallwood Petroleum, Inc.	2	2	0	0	Sep 18, 1992	Sep 18, 1992
293	Hamman Oil & Refining Company	2	2	0	0	Jul 16, 2007	Nov 29, 2007
294	Harper Hefte, Inc.	2	2	0	0	Feb 8, 1989	May 31, 1989
295	Hawn Brothers-Price Drilling Co.	2	2	0	0	Jan 27, 1983	Mar 4, 1983
296	Hayes Oil & Gas Co.	2	2	0	0	Mar 28, 1996	Aug 26, 1996
297	Hedrick, W. J.	2	2	0	0	Jul 18, 1979	Aug 24, 1979
298	H & P Exploration Co.	2	2	0	0	Jun 14, 2010	Oct 14, 2010
299	Hurd Enterprises, Ltd.	2	2	0	0	Oct 13, 1988	Nov 25, 1997
300	J-A-H, Inc.	2	2	0	0	Apr 18, 1980	Apr 18, 1980

753 OPERATORS · THE 300 MOST ACTIVE SHOWN · WINDOW ON THE RRC ISSUE DATE