COUNTIES · LEE · OPERATORS

Lee 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	U. S. Operating, Inc.	252	252	70	50	Nov 17, 1977	Sep 8, 2010
2	Union Pacific Resources Company	156	156	117	52	May 26, 1982	Jun 30, 2000
3	Windsor Producing Co.	150	150	0	12	Sep 19, 1977	Dec 22, 1981
4	Humble Exploration Co., Inc.	132	132	0	1	Nov 10, 1977	Nov 19, 1984
5	Santa FE - Windsor Producing Co.	115	115	0	30	Aug 24, 1981	Jul 19, 1984
6	WCS Oil and Gas Corporation	93	93	30	31	Dec 7, 1978	Sep 21, 2004
7	Williams, Clayton W., Jr.	88	88	0	8	Oct 4, 1977	Jun 14, 1984
8	Gemini Exploration Company	86	86	73	8	May 16, 1988	May 1, 1995
9	Tex-Lee Operating Company	71	71	1	41	Aug 2, 1983	May 17, 2018
10	Venado Oil & Gas, LLC	68	68	62	0	Oct 19, 2011	Oct 24, 2014
11	Houston Oil & Minerals Corp.	66	66	0	7	Jun 29, 1977	Sep 6, 1984
12	Hollub, Lambert Drilling Company	64	64	0	6	Jul 28, 1977	Feb 19, 1987
13	U. S. Resources, Inc.	53	53	0	3	Sep 9, 1977	Nov 28, 1979
14	Champlin Exploration, Inc.	52	52	0	3	May 31, 1978	Mar 25, 1987
15	Santa FE Minerals, Inc.	48	48	0	24	May 11, 1984	Sep 22, 1987
16	Superior Oil Company, The	46	46	0	0	Aug 17, 1978	Jan 28, 1986
17	Fenn, Bill Inc.	43	43	1	9	Jun 18, 1981	Sep 14, 1990
18	Union Pacific Austin Chalk Co.	40	40	36	9	Jul 26, 1983	Apr 9, 1997
19	Austin Oil & Mineral	40	40	0	1	Aug 19, 1981	Aug 11, 1989
20	Magnolia Oil & Gas Operating LLC	39	39	39	550	Mar 20, 2009	Jul 8, 2026
21	Ernest Oil Company	36	36	0	1	Jul 12, 1977	Feb 12, 1986
22	Bar-Mac Investments Inc.	34	34	0	7	Jan 8, 1988	Dec 10, 2002
23	United Oil & Minerals, Inc.	32	32	13	17	Dec 12, 1984	Oct 10, 1997
24	Sage Natural Resources LLC	29	29	29	26	Nov 9, 2023	Oct 19, 2026
25	Nucorp Energy, Inc.	28	28	0	3	Jul 17, 1979	Sep 2, 1983
26	Weber Energy Corporation	27	27	1	0	Sep 19, 1986	Nov 26, 1991
27	WCS Petroleum Company	26	26	0	2	Jul 8, 1980	Aug 26, 1985
28	Columbia Gas Development Corp.	24	24	3	4	Nov 2, 1979	Oct 5, 1994
29	General Production Company, Inc.	24	24	0	1	May 11, 1982	Dec 10, 1984
30	Enervest Operating, L.L.C.	23	23	22	25	Aug 14, 2006	Sep 30, 2018
31	Nobleson Operating, Inc.	21	21	0	1	Jan 28, 1986	Sep 12, 1989
32	Oversea Oil Co.	20	20	0	3	Sep 11, 1987	Jun 25, 1992
33	Anadarko E&P Company LP	18	18	17	18	Jan 16, 2003	Jan 9, 2007
34	Brittany Drilling Co.	18	18	0	3	Jul 26, 1978	Dec 30, 1985
35	East Texas Exploration	18	18	0	2	Jun 21, 1984	Oct 22, 1986
36	Home Petroleum Corporation	18	18	0	1	Aug 29, 1979	Feb 4, 1988
37	Aegean Oil Corp.	18	18	0	0	Mar 8, 1983	Jul 2, 1985
38	Williams, Clayton Energy, Inc.	17	17	17	7	Nov 18, 1993	Jun 24, 2015
39	Tipco	17	17	0	5	Sep 14, 1977	Jan 24, 1985
40	Dobos, James D. Corporation	17	17	0	0	Jun 8, 1983	Jul 1, 1987
41	WCS Oil & Gas Corporation	16	16	14	15	Jun 7, 1996	Sep 25, 2014
42	General Prod. Corp.	16	16	0	0	Sep 8, 1980	Oct 4, 1982
43	RGR Production	15	15	0	5	Jan 13, 1984	Mar 27, 1989
44	Bar-Mac	15	15	0	0	Aug 11, 1977	Sep 22, 1987
45	Leonard, J. A.	14	14	0	4	Mar 23, 1981	Jul 2, 1985
46	Ada Oil Exploration Corp.	14	14	0	1	Mar 21, 1979	Oct 16, 1985
47	Ferguson, Ted R.,inc.	14	14	14	1	Sep 21, 1987	Mar 8, 1989
48	Cordell Oil Company	14	14	0	0	Jul 5, 1982	Sep 13, 1984
49	San Antonio Gas & Oil, Inc.	14	14	0	0	Mar 26, 1992	Nov 27, 1996
50	Browning Oil Company, Inc.	13	13	7	20	Aug 21, 1978	Sep 19, 2014
51	Bar M Petroleum Co., Inc.	13	13	0	0	Jul 18, 1980	Dec 29, 1981
52	Exxon Corp.	12	12	10	5	Dec 23, 1983	Jul 12, 1996
53	Arrow Exploration Company	12	12	12	3	Jun 24, 1994	May 2, 2001
54	Lina Exploration, Inc.	12	12	0	3	Jan 10, 1985	Mar 9, 1988
55	Ironroc Energy	12	12	12	2	Sep 30, 2018	Sep 7, 2022
56	Houston Petroleum Company	12	12	0	1	Jan 18, 1985	May 10, 2006
57	Armor Lonestar, LLC	12	12	12	0	Mar 26, 2018	Oct 8, 2018
58	Central Plains Oil and Gas Corp.	12	12	0	0	Feb 11, 1985	Oct 24, 1986
59	Leexus Oil LLC	11	11	10	33	May 18, 2010	May 1, 2012
60	Sage Energy Company	11	11	2	4	Jul 9, 1980	Oct 20, 1995
61	Cag Petroleum Corp.	11	11	0	3	Mar 31, 1978	Jun 28, 1982
62	Mobil Producing TX. & N.M. Inc.	11	11	4	3	Jun 17, 1986	May 3, 1988
63	Stanton Mineral Development Inc	11	11	0	0	Sep 12, 1995	Mar 12, 1998
64	Torch Operating Company	10	10	9	5	Nov 6, 1992	Apr 24, 1995
65	Holifield Oil Company	10	10	10	2	Aug 3, 1999	Mar 1, 2004
66	Bar-Mac & Hollub Drilling Co.	10	10	0	0	May 14, 1979	Feb 20, 1987
67	Brammer Engineering, Inc.	10	10	8	0	May 8, 2008	May 5, 2010
68	Coffman, Thomas D.	10	10	0	0	Nov 21, 1977	Jan 17, 1980
69	Noble Producing Company Inc.	10	10	0	0	Oct 4, 1985	May 25, 1994
70	Petrus Operating Co., Inc.	10	10	0	0	Dec 15, 1981	May 16, 1985
71	Teon Energy, Inc.	10	10	0	0	Dec 31, 1981	Jun 12, 1984
72	Windsor Energy, Inc.	10	10	0	0	Jul 5, 1977	May 22, 1984
73	Riley Exploration Opg Co, LLC	9	9	8	15	Nov 20, 2013	Feb 10, 2016
74	Tri-Star Exploration, Inc.	9	9	0	3	Nov 17, 1987	Aug 18, 1989
75	Impetro Operating LLC	9	9	8	1	May 21, 2010	Jun 8, 2015
76	B & B Drilling Co.	9	9	0	0	Jan 7, 1982	Apr 20, 1989
77	Hillside Equities, Inc.	9	9	0	0	May 6, 1986	Jun 26, 1987
78	Rme Petroleum Company	8	8	7	4	Sep 26, 2000	Aug 30, 2002
79	S. & S. Oil Properties	8	8	0	1	Aug 12, 1983	Oct 4, 1984
80	Coates Energy Trust	8	8	0	0	Jan 19, 1982	Sep 14, 1987
81	Drillco Energy Corporation	8	8	0	0	Feb 17, 1981	Mar 3, 1981
82	Leexus Oil & Gas L.L.P.	8	8	2	0	Jul 14, 2004	Oct 13, 2006
83	Magna Oil & Gas Corporation	8	8	0	0	Oct 17, 1988	Sep 19, 1991
84	Anadarko Austin Chalk Company	7	7	7	11	Feb 14, 2003	Jun 22, 2005
85	Sha-Jam Operating Corp.	7	7	0	6	Aug 1, 1983	Feb 27, 1989
86	Modern Exploration, Inc.	7	7	0	4	May 17, 1985	Oct 14, 1987
87	Black Gold Operating Co., Inc.	7	7	0	1	Apr 8, 1986	Jun 27, 1988
88	W C S Petroleum, Inc.	7	7	0	1	Mar 3, 1981	Sep 14, 1984
89	Blessing Energy, Inc.	7	7	0	0	Dec 11, 1985	Jan 12, 1988
90	Kelpetro, Inc.	7	7	0	0	Nov 26, 1986	Apr 7, 1989
91	Lina Exploration	7	7	0	0	Sep 2, 1983	Oct 4, 1984
92	Martin Oil & Gas Co.	7	7	0	0	May 31, 1978	Dec 9, 1981
93	Nestex Energy, LLC	7	7	0	0	Jul 8, 2008	Jan 7, 2009
94	Oasis Resources, Inc.	7	7	0	0	May 25, 1984	May 12, 1988
95	Spencer & Hutson	7	7	0	0	May 14, 1979	May 7, 1981
96	Heci Exploration Company	6	6	0	14	Apr 3, 1985	Dec 27, 1985
97	Everest Minerals Corp.	6	6	0	1	Jan 15, 1982	Nov 14, 1985
98	Great West Energy & Expl., Inc.	6	6	6	1	Mar 14, 1990	Nov 3, 2003
99	Phillips Petroleum Company	6	6	0	1	Feb 14, 1980	Feb 12, 1982
100	Texakoma Oil & Gas Corporation	6	6	1	1	Jan 28, 1988	Apr 28, 1992
101	Apache Corporation	6	6	4	0	Jun 18, 2008	Sep 19, 2014
102	Coronado Minerals Company	6	6	0	0	Oct 19, 1983	Sep 12, 1984
103	Forest Oil Corporation	6	6	5	0	Aug 31, 2009	May 20, 2011
104	McCarthy Oil & Gas Corporation	6	6	0	0	Aug 1, 1984	Aug 24, 1987
105	Riley Permian Operating Co, LLC	6	6	6	0	Oct 25, 2019	Dec 7, 2022
106	Sand-Tex Oil Co.	6	6	0	0	Dec 31, 1986	Dec 31, 1986
107	Scott Petroleum, Inc.	6	6	0	0	Sep 19, 1986	Nov 20, 1987
108	Williams, Clayton W., Jr., Inc.	6	6	2	0	Dec 29, 1987	Sep 15, 1988
109	Zonergy, Inc.	6	6	0	0	Sep 26, 1978	Feb 2, 1981
110	Coffman, Thomas D. Inc.	5	5	0	5	Jan 11, 1978	Aug 31, 1981
111	Marathon Oil Company	5	5	5	4	Oct 4, 1993	May 11, 2009
112	Parkway Petroleum, Inc.	5	5	5	4	Dec 21, 1989	Mar 15, 1994
113	Rme Austin Chalk Company	5	5	5	3	Aug 7, 2001	Feb 28, 2002
114	Crescent Exploration Company	5	5	0	1	Jul 15, 1987	Oct 2, 1991
115	Keystone Exploration, Inc	5	5	5	1	Nov 15, 1991	Mar 27, 1997
116	Riley Exploration, LLC	5	5	5	1	Aug 14, 2012	May 29, 2013
117	Arledge, Terry	5	5	0	0	Aug 31, 1983	Aug 31, 1983
118	Champlin Petroleum Co.	5	5	0	0	Nov 8, 1979	Jul 16, 1984
119	Combustion Products Corp.	5	5	0	0	Jan 2, 1979	Jun 26, 1979
120	Dynamic Production, Inc.	5	5	1	0	Mar 18, 1981	Dec 4, 1992
121	Heartland Resources, Inc.	5	5	0	0	Aug 17, 1995	Sep 15, 1998
122	Keesee Oil & Gas Operating Co.	5	5	0	0	May 2, 1984	Feb 28, 1985
123	Mai Oil Operations, Inc.	5	5	0	0	Sep 30, 1991	Aug 12, 1992
124	North American Oil & Gas, Inc.	5	5	0	0	Dec 11, 1986	Jul 20, 1987
125	Webster, Lynn & Coffman	5	5	0	0	Nov 21, 1977	Dec 30, 1977
126	Wildhorse Resources Mngt Co, LLC	5	5	5	0	Dec 14, 2017	Sep 30, 2018
127	Anatexas Offshore, Inc.	4	4	4	3	Oct 29, 2008	May 27, 2011
128	Clark Expl. & Prod., Co., Inc.	4	4	0	1	Jul 7, 1983	Sep 30, 1983
129	Oasis Operating, Inc.	4	4	0	1	Oct 13, 1987	Jul 29, 1992
130	Penntex Petroleum Corporation	4	4	0	1	Aug 25, 2003	Mar 26, 2004
131	A & D Petroleum Company, Inc.	4	4	0	0	Apr 20, 1984	Sep 21, 1984
132	Ammex Petroleum Corporation	4	4	0	0	Jun 6, 1979	Feb 26, 1980
133	County Management, Inc.	4	4	0	0	Mar 9, 1981	Mar 10, 1981
134	Energetics, Inc.	4	4	0	0	Jul 8, 1981	Aug 5, 1982
135	Herd Producing Company, Inc.	4	4	0	0	Jul 1, 1980	Jul 29, 1982
136	Hopehill Petroleum Co., Inc.	4	4	0	0	Nov 17, 1977	Jul 23, 1981
137	Maxwell Production Co., Inc.	4	4	0	0	Dec 15, 1986	May 1, 1987
138	Melhar Exploration	4	4	0	0	Nov 14, 1983	Aug 9, 1984
139	Mosbacher Prod. Co.-Transco Exp.	4	4	0	0	Mar 1, 1979	Aug 13, 1979
140	Nautilus Petroleum, Inc.	4	4	0	0	Aug 25, 1983	Dec 31, 1984
141	Perry Oil & Gas Company	4	4	0	0	Feb 1, 1984	Aug 28, 1984
142	Polk & Patton, Inc.	4	4	0	0	Jun 10, 1982	Oct 29, 1986
143	Rousseau, George L.	4	4	0	0	Apr 26, 1985	Mar 26, 1986
144	Snyder Oil Corporation	4	4	2	0	Jul 28, 1992	Feb 13, 1996
145	Cirrus Production Company	3	3	2	12	Nov 6, 1997	Dec 6, 2005
146	Majestic Petroleum Corporation	3	3	3	5	Jul 5, 1989	Aug 25, 1989
147	Geosouthern Energy Corporation	3	3	3	4	Sep 15, 2009	Sep 18, 2009
148	SM Energy Company	3	3	2	4	May 27, 2014	Oct 22, 2014
149	J & G Operating, Inc.	3	3	3	3	Feb 27, 1987	Aug 24, 1987
150	Aop Operating Corporation	3	3	0	2	Nov 28, 1984	Sep 22, 1987
151	BBL Oil & Gas Company	3	3	0	2	May 28, 1985	Oct 15, 1986
152	Maverick Prod. Co. Inc.	3	3	0	2	May 3, 1978	May 5, 1980
153	Reh Energy, Inc.	3	3	0	2	Dec 10, 1981	Jun 10, 1983
154	Brent Explorations, Inc.	3	3	0	1	Apr 8, 1981	Aug 5, 1981
155	Delaware Ecco Petroleum Inc.	3	3	3	1	Jun 10, 1994	Dec 1, 1995
156	Edsel, Robert M. Inc.	3	3	0	1	Sep 10, 1985	Apr 7, 1986
157	Estate Oil & Gas Corp.	3	3	0	1	Oct 3, 1990	Mar 24, 1995
158	Flag-Redfern Oil Company	3	3	0	1	Jan 16, 1978	Jul 12, 1983
159	Gantt Operating Company, Inc.	3	3	0	1	Oct 28, 1983	Aug 18, 1986
160	KP Exploration, Inc.	3	3	0	1	Nov 19, 1980	Mar 9, 1982
161	Amberton Exploration Company	3	3	0	0	Jul 10, 1987	Aug 9, 1988
162	Bar S Corporation	3	3	0	0	Nov 16, 1983	May 9, 1985
163	Calvert Engineering Corp.	3	3	0	0	Jul 5, 1977	Oct 31, 1977
164	Choctaw Petroleum Corp.	3	3	0	0	Aug 22, 1977	Mar 3, 1978
165	Destiny Exploration, Inc.	3	3	0	0	Jun 8, 1984	Apr 16, 1985
166	Discorbis Oil Co.	3	3	0	0	Feb 10, 1987	Mar 30, 1987
167	Geo Source Petroleum Corporation	3	3	0	0	Nov 20, 1981	Feb 4, 1982
168	Glenco Oil & Gas Company	3	3	0	0	Jul 26, 1984	Jun 17, 1993
169	Halamicek, F. A.	3	3	0	0	Mar 13, 1978	May 8, 1978
170	Hopi, Inc.	3	3	0	0	Nov 9, 1987	May 20, 1988
171	Latog Inc.	3	3	0	0	Sep 22, 1987	Oct 20, 1988
172	Lynn, Larry J. & Coffman T. D.	3	3	0	0	Jul 18, 1977	Sep 27, 1977
173	Mutual Oil of America, Inc.	3	3	0	0	Sep 15, 1977	Sep 26, 1977
174	Natura Energy Corp	3	3	0	0	Apr 10, 1981	Jan 15, 1982
175	NU-Trend Petroleum, Inc.	3	3	0	0	Sep 18, 1987	Dec 23, 1987
176	Patterson Petroleum, Inc.	3	3	1	0	Jun 13, 1984	Jan 28, 2000
177	Perkins Oil Company	3	3	0	0	Jul 25, 1977	Apr 14, 1978
178	Seagull Operating Co. Inc.	3	3	0	0	Jul 10, 1978	Apr 13, 1982
179	Stone, W. B. Inc.	3	3	0	0	Apr 17, 1985	Nov 24, 1986
180	Texas Gas Exploration Corp.	3	3	0	0	Sep 4, 1979	Jan 29, 1980
181	Texas General Petr. Corp.	3	3	0	0	Jan 2, 1979	Mar 30, 1982
182	Windsor Oil Co.	3	3	0	0	May 29, 1984	Jun 12, 1984
183	Zapata Exploration Co-Onshore	3	3	0	0	Jan 22, 1985	May 23, 1985
184	Wildfire Energy Operating LLC	2	2	2	26	Aug 21, 2026	Sep 10, 2026
185	A. O. & M. Exploration, Inc.	2	2	0	3	Jul 16, 1993	Jul 28, 1993
186	H-M Oil Company	2	2	0	2	Apr 1, 1981	Apr 1, 1981
187	Penn Resources, Inc.	2	2	0	2	Oct 27, 1980	Oct 15, 1981
188	Pin Oak Petroleum, Inc.	2	2	0	2	Jan 6, 1988	Jan 28, 1988
189	Sellers Lease Service, Inc.	2	2	0	2	Nov 19, 2018	Jan 28, 2020
190	TXO Production Corp.	2	2	0	2	Nov 19, 1980	Jan 23, 1986
191	Alcorn, C. W. Jr.	2	2	0	1	Jul 1, 1977	Jun 1, 1983
192	Alcorn Prod Co.	2	2	0	1	Aug 12, 1980	Nov 26, 1980
193	Atlas Energy Corp.	2	2	0	1	Dec 22, 1978	May 8, 1981
194	Cannan, Morris	2	2	0	1	May 15, 1985	Nov 8, 1985
195	Fedor Prospect Inc.	2	2	0	1	Dec 8, 1993	Dec 30, 1993
196	Gasper Rice Resources, Ltd.	2	2	0	1	Jul 1, 2003	Jun 16, 2004
197	Ginger Petroleum Company, Inc.	2	2	1	1	Jun 4, 1986	Feb 14, 1996
198	LWG, Inc.	2	2	0	1	Nov 6, 1986	Nov 13, 1987
199	Mid Continent Resources, Inc.	2	2	0	1	Oct 29, 1991	Mar 18, 1993
200	Polaris Petroleum, Inc.	2	2	0	1	Jan 29, 1990	Mar 5, 1990
201	Texas Onshore Energy, Inc.	2	2	0	1	Dec 15, 2010	May 8, 2012
202	Allied-Texcan, Inc.	2	2	0	0	Jul 31, 1987	Sep 11, 1987
203	Bosco Petroleum LLC	2	2	0	0	Sep 2, 2022	Jan 27, 2023
204	Britton Drilling Company	2	2	0	0	Feb 1, 1980	Jun 18, 1981
205	Catlett, E. G.	2	2	0	0	Mar 4, 1981	May 1, 1981
206	Chafin & Hedges Petroleum Co.inc	2	2	0	0	Dec 14, 1979	Jan 4, 1980
207	Coates, George H. Estate Of	2	2	0	0	Jun 13, 1977	Dec 22, 1977
208	Costilla Energy, Inc.	2	2	1	0	Jul 17, 1978	Mar 7, 1997
209	CPC Exploration Inc.	2	2	0	0	Jun 2, 1980	Aug 3, 1981
210	Encana Oil & Gas(usa) Inc.	2	2	2	0	Sep 19, 2012	Sep 19, 2012
211	Endrex Exploration Company	2	2	0	0	Jun 25, 1984	Jun 26, 1984
212	Everest Exploration Co.	2	2	0	0	Nov 6, 1980	Aug 3, 1981
213	Fargo Energy Corporation (A)	2	2	0	0	Dec 9, 1983	Feb 19, 1985
214	Flint Hills Resources, LC	2	2	0	0	Sep 18, 2020	Sep 21, 2020
215	Geodynamics Oil & Gas, Inc.	2	2	0	0	Aug 1, 1977	Aug 23, 1978
216	Geo-Graphic Production, Inc.	2	2	0	0	Jan 31, 1984	Apr 3, 1984
217	Gose, Steve	2	2	0	0	Aug 25, 1980	Dec 9, 1980
218	Lordstone Corporation	2	2	0	0	Jun 21, 1982	Jul 8, 1982
219	Lynn, Larry J.	2	2	0	0	Oct 4, 1977	Jan 11, 1978
220	Lyon Oil Co., Inc.	2	2	0	0	Jun 23, 1980	May 18, 1981
221	Malone Oil & Gas Corp.	2	2	0	0	Oct 8, 1981	Mar 1, 1982
222	Matrix Petroleum, LLC	2	2	2	0	May 25, 2018	May 25, 2018
223	Melton Energy Inc.	2	2	1	0	Jan 12, 1988	Sep 6, 1990
224	Minerals of Texas, Inc.	2	2	0	0	Aug 1, 1986	Aug 1, 1986
225	Mitchell Energy Corporation	2	2	0	0	May 27, 1980	May 25, 1982
226	Mosbacher Production Co.	2	2	0	0	Feb 6, 1981	Mar 28, 1983
227	Mosbacher-Transco Expl-W.E. Carl	2	2	0	0	May 13, 1980	Oct 22, 1981
228	New Century Operating, LLC	2	2	2	0	Nov 20, 2014	Jun 24, 2015
229	Oxoco Exploration Corp.	2	2	0	0	Dec 17, 1979	Dec 20, 1979
230	Petro-Lewis Corporation	2	2	0	0	May 7, 1980	Jul 2, 1982
231	Pickett Oil Company	2	2	0	0	Oct 4, 1979	Jan 17, 1980
232	Reata Oil & Gas Corp.	2	2	0	0	Feb 10, 1982	Dec 17, 1986
233	Rla Resources, Inc	2	2	0	0	May 15, 1987	Nov 17, 1987
234	Rosewood Resources, Inc.	2	2	2	0	Jun 18, 1997	Dec 22, 2014
235	Seaco Production	2	2	0	0	Mar 1, 2006	Sep 12, 2007
236	Sha-Jam Corp.	2	2	0	0	Apr 2, 1982	Dec 28, 1982
237	Sonoble Operating, Inc.	2	2	0	0	Jun 2, 1987	Dec 13, 1988
238	South Texas Drilling & Expl, Inc	2	2	0	0	Nov 10, 1993	Dec 29, 1994
239	Stroud Oil Properties, Inc.	2	2	2	0	Sep 20, 2001	Sep 28, 2001
240	Texas Independent Explor., Inc.	2	2	2	0	Sep 28, 1994	Oct 6, 1994
241	Texas Oil & Gas Corp.	2	2	0	0	Oct 14, 1980	Jan 28, 1981
242	U. S. Mineral Operating Co, Inc	2	2	0	0	Dec 4, 1981	Jun 9, 1982
243	Valwood Production Co.	2	2	0	0	Dec 20, 1982	May 6, 1983
244	Senora Resources, Inc.	1	1	0	16	Mar 29, 1990	Mar 29, 1990
245	Ironbloom Operating, LLC	1	1	1	7	Jul 16, 2026	Jul 16, 2026
246	Texas Vanguard Oil Company	1	1	0	6	Oct 9, 2000	Oct 9, 2000
247	Everest Resource Company	1	1	0	5	Nov 2, 2021	Nov 2, 2021
248	Dominion Oklahoma Texas E&P, Inc	1	1	0	3	Oct 14, 2005	Oct 14, 2005
249	Redwood Energy, Inc.	1	1	0	3	Feb 2, 1987	Feb 2, 1987
250	MW Petroleum Corporation	1	1	1	2	Jun 28, 1994	Jun 28, 1994
251	M W Production Co.	1	1	0	2	Dec 1, 1986	Dec 1, 1986
252	3 G Investments, Inc.	1	1	0	1	Dec 28, 1987	Dec 28, 1987
253	B.E.D. Oil & Gas, Inc.	1	1	0	1	Apr 9, 1984	Apr 9, 1984
254	Berry Bros. Petroleum, Inc	1	1	0	1	Feb 17, 1982	Feb 17, 1982
255	Brodkin, A. J.	1	1	0	1	Dec 5, 1989	Dec 5, 1989
256	Central Plains Oil&gas Corp. (A)	1	1	0	1	May 26, 1987	May 26, 1987
257	Creative Oil & Gas Operating,llc	1	1	1	1	Sep 30, 2018	Sep 30, 2018
258	Esenjay Petroleum Corp.	1	1	0	1	Dec 31, 1979	Dec 31, 1979
259	Itr Petroleum, Inc.	1	1	0	1	Oct 20, 1978	Oct 20, 1978
260	Kandahar Oil Corporation	1	1	0	1	Sep 5, 1980	Sep 5, 1980
261	Lacy, F. B. Inc.	1	1	0	1	Jan 27, 1981	Jan 27, 1981
262	Morris, W. Dale Inc.	1	1	1	1	Apr 29, 1998	Apr 29, 1998
263	Parker & Parsley, Inc.	1	1	0	1	Dec 29, 1981	Dec 29, 1981
264	Reach Exploration, Inc.	1	1	0	1	Aug 30, 1991	Aug 30, 1991
265	Retamco, Inc	1	1	0	1	Dec 31, 1981	Dec 31, 1981
266	Saxon Oil Company	1	1	0	1	Mar 10, 1978	Mar 10, 1978
267	Seay Oil & Gas, Ltd.	1	1	0	1	Sep 11, 2003	Sep 11, 2003
268	Tara Petroleum Company	1	1	0	1	Oct 20, 1986	Oct 20, 1986
269	TDC Exploration Inc.	1	1	0	1	Aug 13, 1980	Aug 13, 1980
270	Tekna Synergy Corporation	1	1	1	1	Aug 30, 1991	Aug 30, 1991
271	Texas Central Exploration	1	1	0	1	Apr 17, 1984	Apr 17, 1984
272	Tipperary Oil & Gas Corporation	1	1	0	1	Sep 15, 1981	Sep 15, 1981
273	Y M T Company	1	1	0	1	Nov 25, 1985	Nov 25, 1985
274	Agco Petroleum Company	1	1	0	0	Jul 15, 1986	Jul 15, 1986
275	Amoco Production Company	1	1	1	0	Mar 18, 1988	Mar 18, 1988
276	Atkinson Energy Corporation	1	1	1	0	May 20, 2004	May 20, 2004
277	Austin Chalk SWD Inc	1	1	0	0	Aug 7, 1981	Aug 7, 1981
278	Austin Minerals, Inc.	1	1	1	0	Dec 20, 1990	Dec 20, 1990
279	Black Sable Energy, LLC	1	1	0	0	Mar 7, 2008	Mar 7, 2008
280	Brenham Drilling Co.	1	1	0	0	Nov 12, 1980	Nov 12, 1980
281	Bridge Oil Company, L. P.	1	1	0	0	Sep 13, 1992	Sep 13, 1992
282	Buchanan, Wayman W.	1	1	0	0	Apr 28, 1980	Apr 28, 1980
283	Cachara Oil & Gas Co.	1	1	0	0	Feb 3, 1983	Feb 3, 1983
284	Caloco Energy, Inc.	1	1	1	0	Mar 3, 1992	Mar 3, 1992
285	Cameron, Paul E., Jr., Inc.	1	1	0	0	May 2, 1980	May 2, 1980
286	Central Plains Exploration, Inc.	1	1	0	0	Mar 13, 1987	Mar 13, 1987
287	Chafin & Hedges Petroleum Co.	1	1	0	0	Dec 4, 1979	Dec 4, 1979
288	Chaparral Energy, L.L.C.	1	1	0	0	Feb 14, 2006	Feb 14, 2006
289	Chilton Exploration Company	1	1	0	0	Oct 26, 1987	Oct 26, 1987
290	Chmelar, Eugene Oil & Gas, Inc.	1	1	0	0	Mar 17, 1986	Mar 17, 1986
291	Church Oil & Gas, Inc. (A)	1	1	0	0	Aug 11, 1981	Aug 11, 1981
292	Cities Service Company	1	1	0	0	Apr 2, 1981	Apr 2, 1981
293	C&M Equipment & Leasing Co., Inc	1	1	0	0	Dec 2, 1996	Dec 2, 1996
294	Convest Energy Corporation	1	1	0	0	Dec 14, 1981	Dec 14, 1981
295	Crescent Pass Energy, LLC	1	1	0	0	Feb 1, 2013	Feb 1, 2013
296	CW Crockett, Inc	1	1	1	0	Jun 28, 1999	Jun 28, 1999
297	DBJ Operating, Inc.	1	1	0	0	Sep 12, 1990	Sep 12, 1990
298	Dividend Production Co.	1	1	0	0	Apr 13, 1982	Apr 13, 1982
299	DLG Oil & Gas, Inc.	1	1	0	0	Apr 18, 1986	Apr 18, 1986
300	Durst, Lee A. Jr.	1	1	0	0	Nov 12, 1981	Nov 12, 1981

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