COUNTIES · KARNES · OPERATORS

Karnes 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	Marathon Oil EF LLC	1,876	1,876	1,864	1,753	Apr 14, 2010	Oct 30, 2026
2	EOG Resources, Inc.	1,452	1,452	1,427	1,127	Dec 31, 2008	Jun 12, 2026
3	Burlington Resources O & G Co LP	1,085	1,085	1,082	628	Feb 25, 2008	Oct 28, 2026
4	Encana Oil & Gas(usa) Inc.	472	472	467	14	Feb 14, 2013	Jan 28, 2020
5	Murphy Expl. & Prod. Co. - USA	421	421	421	310	Dec 6, 2010	Jun 13, 2025
6	Plains Exploration & Prod. Co.	337	337	337	14	Mar 17, 2010	Jun 17, 2013
7	Pioneer Natural Res. USA, Inc.	334	334	307	15	Sep 27, 2000	Dec 31, 2018
8	BPX Operating Company	212	212	212	254	Mar 11, 2019	Jul 27, 2026
9	Statoil Texas Onshore Prop LLC	207	207	206	1	Feb 25, 2013	Jul 18, 2018
10	Devon Energy Production Co, L.P.	199	199	195	795	Sep 13, 2000	Sep 2, 2026
11	Magnolia Oil & Gas Operating LLC	189	189	189	312	Aug 18, 2010	May 15, 2026
12	BHP Billiton Pet(txla OP) Co	129	129	129	1	Aug 20, 2012	Jul 29, 2019
13	Blackbrush O & G, LLC	124	124	123	23	Jul 26, 2012	Jan 4, 2024
14	Enervest Operating, L.L.C.	114	114	114	3	Jul 2, 2015	Dec 31, 2018
15	Texaco Inc.	111	111	0	5	Feb 23, 1982	Jul 19, 1983
16	Repsol Oil & Gas USA, LLC	90	90	90	381	Jul 7, 2021	Oct 21, 2026
17	Petrohawk Operating Company	88	88	88	3	Oct 14, 2010	Jul 10, 2013
18	Validus NRG Aquilas Assetco LLC	84	84	84	0	Jun 24, 2016	Oct 21, 2022
19	Enduring Resources, LLC	77	77	76	1	Dec 27, 2005	Dec 3, 2010
20	Hilcorp Energy Company	77	77	75	0	Mar 11, 2010	Nov 4, 2011
21	Inpex Eagle Ford, LLC	71	71	71	5	May 31, 2019	Aug 19, 2022
22	Gulftex Energy, LLC	67	67	67	55	Feb 4, 2020	May 29, 2026
23	Ensign Operating LLC	58	58	57	1	Sep 30, 2018	Oct 4, 2022
24	Matador Production Company	55	55	55	0	Dec 10, 2011	Feb 25, 2019
25	Whiting Oil and Gas Corporation	53	53	7	8	Jul 2, 2002	Feb 3, 2010
26	Freeport-McMoran Oil & Gas LLC	51	51	51	5	Jan 11, 2012	Sep 12, 2014
27	Talisman Energy USA Inc.	49	49	49	1	May 25, 2010	Feb 1, 2013
28	Gulftex Energy III, LP	48	48	48	2	Feb 4, 2014	Oct 12, 2017
29	Verdun Oil & Gas LLC	44	44	42	45	May 30, 2011	Oct 26, 2026
30	Tidal Petroleum, Inc.	41	41	41	28	Jul 7, 2015	Aug 30, 2024
31	Gulftex Energy IV, LP	40	40	40	0	Dec 29, 2016	Mar 1, 2019
32	Sun Expl. & Prod. Co.-Corpus	36	36	0	1	Jul 19, 1983	Nov 13, 1985
33	Equinor Texas Onshore Prop LLC	32	32	32	0	May 16, 2018	Mar 19, 2019
34	Hanson Minerals Co.	31	31	0	3	Nov 19, 1979	Feb 16, 1993
35	Paloma Resources, LLC	31	31	31	0	Sep 7, 2010	Jul 11, 2012
36	Mobil Oil Corporation	28	28	0	4	Aug 11, 1977	Jan 15, 1980
37	1776 Energy Operators, LLC	26	26	26	0	Jan 10, 2012	Nov 25, 2025
38	Lonestar Operating, LLC	26	26	26	0	Aug 23, 2017	Aug 26, 2022
39	Riley Exploration, LLC	24	24	24	3	May 3, 2010	Jul 3, 2012
40	Ovintiv USA Inc.	24	24	24	1	Jun 17, 2014	Aug 5, 2020
41	Warwick-Artemis, LLC	23	23	23	21	Jan 18, 2022	May 7, 2025
42	Hughes, Dan A. Company	23	23	0	2	Jun 10, 1996	Jan 4, 2005
43	Silver Hill Energy Operating LLC	22	22	22	24	Apr 20, 2026	Oct 27, 2026
44	Blackbrush O & G, Inc.	22	22	9	6	Jun 15, 2006	Mar 30, 2012
45	Hughes, Dan A. Company, L.P.	22	22	20	0	May 17, 2006	Oct 29, 2010
46	Sunoco Energy Development Co.	22	22	0	0	Jan 10, 1979	Jul 3, 1981
47	Bay Rock Operating Company	21	21	0	14	Dec 8, 1987	Jun 6, 2011
48	Hawthorn Energy Partners, LLC	20	20	0	6	Mar 24, 2008	Nov 12, 2012
49	Sun Expl. & Prod. Co.-Houston	20	20	0	1	Nov 17, 1978	Jun 30, 1983
50	Enserch Exploration, Inc	20	20	0	0	Sep 26, 1978	Sep 10, 1984
51	XTO Energy Inc.	19	19	17	14	Jul 5, 2006	Dec 1, 2021
52	Sauder International, Inc.	19	19	0	0	Aug 23, 1978	Jan 25, 1989
53	Amoco Production Company	18	18	0	2	Sep 22, 1977	May 10, 1984
54	Esenjay Exploration, Inc	18	18	0	2	Jan 15, 1999	Aug 25, 2003
55	Nugget Oil Corporation	18	18	0	0	Dec 16, 1983	Nov 16, 1987
56	Gulftex Ipx, LLC	17	17	16	0	Apr 25, 2019	Jul 9, 2019
57	Pennzoil Producing Co.	16	16	0	5	Jun 28, 1977	Oct 5, 1981
58	Texstar North America, Inc.	16	16	1	2	Dec 23, 1985	May 14, 1992
59	Miller, W. C. Operating Company	16	16	0	1	Jul 30, 1996	Mar 7, 2005
60	Natural Energy, Inc.	16	16	0	0	Jul 10, 1989	Apr 24, 1992
61	Royal Oil & Gas Corp.	15	15	1	1	Oct 21, 1985	Jun 14, 1991
62	Chesapeake Operating, Inc.	14	14	11	4	Dec 20, 1990	Nov 10, 1997
63	Murphy Exploration & Prod. Co.	14	14	14	0	Jul 15, 2009	Jan 19, 2011
64	Delray Oil, Inc.	13	13	0	7	May 1, 1979	Apr 14, 1994
65	Alexander Pet. Consultants, Inc.	13	13	0	2	Apr 14, 1980	Aug 16, 1983
66	Amoco Minerals Company	13	13	0	0	Mar 5, 1981	Mar 5, 1981
67	Crawford Energy Operating Co	13	13	0	0	Feb 19, 2003	Jan 14, 2005
68	North American Royalties, Inc.	13	13	0	0	Jul 8, 1977	May 23, 1979
69	Welder Exploration & Prod., Inc.	12	12	0	16	Mar 14, 2003	Oct 21, 2008
70	Pennzoil Exploration & Prod. Co.	12	12	0	5	Feb 15, 1991	Sep 17, 1996
71	Patterson Energy Corporation	12	12	0	0	May 14, 2004	Jun 28, 2017
72	Smith, R.B. & Assoc., Inc.	12	12	0	0	Dec 7, 1978	Dec 11, 1978
73	Exxon Corp.	11	11	0	6	May 24, 1978	Mar 15, 1985
74	Crimson Exploration Oper., Inc.	11	11	10	3	Nov 9, 2010	Mar 19, 2012
75	Double Play Oil & Gas, Inc	10	10	0	5	Apr 12, 2010	Feb 7, 2014
76	Presidio Exploration, Inc.	10	10	9	5	Nov 27, 1990	Jun 17, 1991
77	Tesoro Petroleum Corporation	10	10	0	2	Nov 9, 1977	Jun 23, 1987
78	Crimson Energy Company, LC	10	10	0	0	Jun 17, 1999	Jul 16, 2002
79	Kimmeridge Texas Gas, LLC	10	10	10	0	Dec 12, 2022	Jan 2, 2024
80	Legend Natural Gas II, LP	9	9	0	33	Feb 22, 2006	Feb 14, 2011
81	Mobil Producing TX. & N.M. Inc.	9	9	0	5	Feb 10, 1981	Aug 15, 1989
82	Petro Resources, Inc.	9	9	0	4	Oct 21, 1985	May 24, 1995
83	One Tec Operating, LLC	9	9	0	1	Jun 4, 2004	Oct 31, 2006
84	Continental Oil Company	9	9	0	0	Jul 8, 1977	Aug 24, 1977
85	Dewbre Petroleum Corporation	8	8	4	10	Nov 17, 1992	Aug 29, 2008
86	Sun Exploration & Production Co.	8	8	0	10	Jul 1, 1977	Dec 28, 1982
87	Socorro Energy, Inc.	8	8	0	6	Jan 25, 1982	Dec 3, 1986
88	Rio Bravo Oil Company	8	8	0	3	Mar 20, 1980	May 15, 1985
89	Rollert Co., Inc., The	8	8	0	3	Jan 11, 1996	May 22, 1998
90	Baytex Energy USA, Inc.	8	8	8	0	Feb 23, 2024	Dec 4, 2025
91	Fortress Minerals, Inc.	8	8	0	0	Dec 29, 1988	Dec 30, 1988
92	Chevron U. S. A. Inc.	7	7	0	7	Jun 1, 1984	May 16, 2002
93	Ampak Oil Company	7	7	1	5	Feb 16, 1999	Jan 3, 2008
94	Hanson Production Company	7	7	0	5	Oct 30, 1992	Jun 17, 1996
95	Turner, M. O.	7	7	0	4	Sep 10, 1984	Nov 21, 1994
96	Henry Petroleum Corp.	7	7	0	3	Jan 23, 1979	Aug 20, 1981
97	Exploration, Ltd.	7	7	0	1	Aug 4, 1980	Mar 29, 1982
98	Sanchez-O'Brien Oil & Gas Corp.	7	7	0	1	Apr 26, 1993	Nov 17, 1994
99	N. P. Energy Corporation	7	7	0	0	Dec 22, 1978	Jun 9, 1980
100	Texas Crude Energy, Inc.	7	7	5	0	Jul 27, 2006	Jan 5, 2010
101	West, Thomas S., Jr.	7	7	0	0	Feb 21, 1980	Dec 12, 1985
102	Bright & Co.	6	6	0	4	Mar 10, 1980	Oct 16, 1990
103	Forney, Bill, Inc.	6	6	0	3	Jun 22, 1978	Oct 2, 1984
104	Hunt Oil Company	6	6	3	2	Aug 1, 1977	Jul 17, 2012
105	Browning Oil Company, Inc.	6	6	0	1	Sep 30, 1991	Nov 10, 2006
106	CB Energy, LLC	6	6	0	1	Oct 19, 1999	Jul 29, 2003
107	Cockrell Oil Corporation	6	6	0	1	Mar 13, 1981	Nov 8, 1982
108	Mormac Oil & Gas Co.	6	6	0	1	Nov 18, 1977	Mar 24, 1980
109	High Roller Wells, L.L.C.	6	6	0	0	Jan 21, 2012	Feb 22, 2019
110	Klotzman, M. S. Exploration	6	6	0	0	Aug 4, 1980	Nov 26, 1984
111	Teal Operating, LLC	6	6	6	0	Jun 30, 2017	Apr 8, 2020
112	Whiting Petroleum Corporation	6	6	5	0	Jul 2, 2002	Oct 3, 2003
113	H-M Oil Company	5	5	0	8	Jan 15, 1981	May 18, 1984
114	Clover Energy Corporation	5	5	0	2	Dec 8, 1977	Sep 13, 1982
115	Modern Exploration, Inc.	5	5	5	2	Oct 4, 1996	Dec 21, 1998
116	Viceroy Petroleum, LP	5	5	0	2	Oct 25, 2011	Mar 18, 2015
117	Cities Service Company	5	5	0	1	Nov 14, 1977	Sep 22, 1982
118	Forney & McCombs	5	5	0	1	Jul 25, 1994	Mar 20, 1995
119	Resaca Resources, L.L.C.	5	5	0	1	Aug 24, 2009	Aug 23, 2012
120	1836 Resources, LLC	5	5	5	0	Dec 22, 2014	May 9, 2017
121	Carter Exploration Company	5	5	0	0	Dec 31, 1992	Dec 7, 2001
122	Centex Market Center, L.P.	5	5	0	0	Apr 4, 2001	Apr 9, 2001
123	Dawson Exploration, Inc	5	5	0	0	Jul 30, 1981	Apr 11, 1986
124	Geosouthern Energy Corporation	5	5	5	0	Apr 2, 2013	Apr 4, 2013
125	Leonard, J. A.	5	5	0	0	Feb 19, 1981	Feb 15, 1985
126	Mapco Minerals Corporation	5	5	0	0	Jun 28, 1983	Jun 28, 1983
127	PNS Company	5	5	0	0	Apr 16, 1979	Dec 1, 1981
128	Southland Minerals Co.	5	5	0	0	Oct 27, 1977	Oct 13, 1978
129	Shell Oil Company	4	4	0	16	Aug 23, 1977	May 20, 1982
130	Jones, Edwin M. Oil Co.	4	4	0	6	Dec 31, 1984	Nov 19, 2009
131	Ageron Energy, LLC	4	4	4	3	Jun 9, 2017	Apr 7, 2021
132	Decker Operating Co., L.L.C.	4	4	0	2	Nov 8, 2000	Aug 12, 2011
133	Rosewood Resources, Inc.	4	4	4	2	Oct 2, 2019	Jun 6, 2025
134	Citation Oil & Gas Corp.	4	4	0	1	Aug 29, 1991	Aug 19, 1993
135	Delta Exploration Company, Inc.	4	4	0	1	Mar 31, 2005	Aug 17, 2005
136	High Plains Gas Systems, Inc.	4	4	0	1	Apr 25, 1996	Nov 20, 1996
137	Lacy, F. B. Inc.	4	4	0	1	Dec 28, 1977	Jul 27, 1979
138	Caskids Operating Company	4	4	3	0	Jul 24, 2002	Mar 2, 2009
139	Earthstone Operating, LLC	4	4	4	0	Dec 3, 2014	Sep 14, 2015
140	Filon Exploration Corp.	4	4	0	0	Jan 31, 1978	Oct 2, 1978
141	Iec Corp.	4	4	0	0	Jan 29, 1979	Feb 28, 1979
142	Mustang Production Company	4	4	0	0	Dec 29, 1980	Sep 2, 1981
143	Petrolero Corp.	4	4	0	0	Nov 16, 1984	Jul 29, 1986
144	Quintana Pet. Corp.	4	4	0	0	Dec 12, 1978	May 28, 1992
145	Summit Discovery Res II LLC	4	4	3	0	Jan 2, 2019	Mar 19, 2019
146	Trans-Canada Entrprses of TX Inc	4	4	0	0	Jul 15, 1981	Aug 28, 1981
147	Wessely Energy Corporation	4	4	0	0	Aug 1, 1978	Jul 21, 1980
148	Bruns, H. D.	3	3	0	10	Nov 7, 1985	Nov 8, 1985
149	Enerquest Operating L.L.C.	3	3	0	6	Mar 5, 2007	Apr 7, 2009
150	Abel, M.D. Co	3	3	0	4	Mar 1, 2000	Feb 26, 2004
151	Kebo Oil & Gas, Inc.	3	3	0	4	Nov 29, 1989	Dec 27, 1995
152	National Exploration Co.	3	3	0	2	Dec 1, 1978	Feb 10, 1981
153	Abraxas Petroleum Corporation	3	3	0	1	Oct 29, 2007	Oct 16, 2008
154	Cheyenne Petroleum Company	3	3	0	1	Jul 30, 1996	Jul 30, 1996
155	Hamman Oil & Refg. Co.	3	3	0	1	Nov 30, 1988	Jul 5, 1991
156	HNG Oil Company	3	3	0	1	Aug 21, 1978	Dec 10, 1981
157	Atkinson, Clifford III	3	3	0	0	May 21, 1980	Nov 13, 1981
158	Ballard Exploration Company,inc.	3	3	0	0	Nov 7, 1985	Oct 26, 2010
159	Bishop, J. E. Inc.	3	3	0	0	Nov 22, 1989	Nov 18, 1994
160	Bissell Operating LLC	3	3	0	0	Nov 29, 2010	Nov 16, 2011
161	Caldera Operating Company LLC	3	3	3	0	Mar 19, 2020	Mar 19, 2020
162	Canyon Oil & Gas Exploration LLC	3	3	3	0	Apr 5, 1999	Jun 24, 1999
163	Cinco Natural Resources Corp.	3	3	3	0	Feb 14, 2011	Feb 14, 2011
164	Cliffwood Production Co.	3	3	0	0	Nov 18, 1999	Nov 24, 1999
165	Dunhill Exploration, Inc.	3	3	0	0	Sep 22, 1988	Feb 9, 1989
166	E. K. O.	3	3	0	0	Jun 6, 1984	May 14, 1987
167	Enaqua Solutions, LLC	3	3	0	0	Sep 9, 2013	Sep 10, 2014
168	Energy Hunter Resources, Inc.	3	3	3	0	Jan 25, 2017	Mar 24, 2017
169	EP Operating Company	3	3	0	0	Dec 6, 1985	Jul 12, 1991
170	Forney Oil Corporation	3	3	0	0	Feb 3, 1986	Jan 11, 1991
171	Getty Oil Co.	3	3	0	0	Oct 19, 1979	Nov 1, 1983
172	Greenhunter Water, LLC	3	3	0	0	Jul 19, 2012	Aug 9, 2012
173	Hankey Operating, Inc.	3	3	0	0	Apr 7, 2010	Mar 21, 2013
174	J-A-H, Inc.	3	3	0	0	Nov 3, 1977	Dec 15, 1977
175	Lucas Energy, Inc.	3	3	1	0	Jan 19, 2010	Feb 23, 2012
176	Nelson, James L.	3	3	0	0	Sep 16, 1998	Sep 28, 2018
177	Nomeco Oil & Gas Co.	3	3	0	0	May 3, 1994	Nov 12, 1997
178	OXY USA Inc.	3	3	3	0	Nov 7, 2012	Jul 10, 2013
179	Paloma Operating, LLC	3	3	0	0	Sep 16, 2024	Jan 23, 2026
180	Petro-Hunt, L.L.C.	3	3	2	0	Jun 25, 2003	Oct 8, 2010
181	Protege Energy III LLC	3	3	3	0	Feb 6, 2019	Feb 6, 2019
182	Summit Discovery Resources LLC	3	3	3	0	Mar 19, 2020	Mar 19, 2020
183	Ursa Petroleum Co., Inc.	3	3	0	0	Oct 17, 1978	May 25, 1979
184	Williams, Clayton W., Jr., Inc.	3	3	3	0	Mar 22, 1991	May 28, 1991
185	Sue-Ann Oil & Gas Company	2	2	0	8	Oct 2, 1986	Aug 29, 1988
186	Rickaway Energy, Corp.	2	2	0	6	Dec 30, 2010	Mar 16, 2012
187	Enex Resources Corporation	2	2	0	3	Sep 6, 1991	Sep 3, 1993
188	Luling Oil & Gas Company, Inc.	2	2	0	3	Sep 9, 1981	Dec 6, 1983
189	Wagner Oil Company	2	2	0	3	Jun 26, 2019	Jun 27, 2019
190	Advantek Waste Mgmt Services LLC	2	2	0	2	Feb 21, 2014	Dec 9, 2024
191	Milagro Exploration, LLC	2	2	0	2	Mar 10, 2011	Jul 23, 2012
192	Staples, Tommy Oil Co.	2	2	0	2	Mar 23, 1982	Nov 6, 1991
193	Sue-Ann Production Company	2	2	0	2	Oct 9, 1995	Oct 9, 1995
194	BBX Operating, L.L.C.	2	2	2	1	Jun 18, 2002	May 2, 2003
195	Black Gold Operating Co., Inc.	2	2	0	1	Apr 20, 1983	Dec 6, 1983
196	Ces SWD Texas, Inc.	2	2	0	1	May 31, 2011	Nov 27, 2013
197	Clay Exploration, Inc.	2	2	0	1	May 13, 1994	May 28, 2003
198	Economy Drilling Inc.	2	2	0	1	May 27, 1982	Jul 28, 1982
199	Fargason Energy, Inc.	2	2	0	1	Jun 8, 1977	Jul 11, 1977
200	First Rock, Inc.	2	2	0	1	Sep 4, 1998	Aug 10, 2000
201	Leede Oil & Gas Inc.	2	2	2	1	Nov 6, 1990	Jul 31, 1991
202	MLC Operating, LP	2	2	0	1	Sep 6, 2006	Sep 6, 2006
203	Nog Production & Operating LLC	2	2	0	1	May 18, 2023	May 11, 2026
204	Paragon Resources, Inc.	2	2	0	1	May 20, 1980	Sep 5, 1980
205	Trans Texas Minerals Company	2	2	0	1	Jun 4, 1996	Jan 8, 1998
206	Tri-C Resources, Inc.	2	2	0	1	Mar 9, 1994	Dec 22, 1995
207	Wejco, Inc.	2	2	0	1	Dec 13, 2004	Jul 25, 2006
208	Wynn-Crosby Operating, Ltd.	2	2	0	1	Dec 23, 2008	May 27, 2009
209	Zachry Exploration, LLC	2	2	0	1	Jan 23, 2013	Oct 6, 2016
210	Zinn Petroleum Co.	2	2	0	1	Aug 5, 1993	May 11, 1994
211	Ammex Petroleum, Inc.	2	2	0	0	May 27, 1981	May 27, 1981
212	Apache Corporation	2	2	0	0	Apr 30, 1990	Dec 11, 1991
213	Aurora USA Development, LLC	2	2	2	0	Jul 2, 2013	Jul 2, 2013
214	Austin Resources Corporation	2	2	0	0	Nov 1, 1994	Sep 18, 1995
215	Bass Enterprises Production Co.	2	2	0	0	Jan 8, 1999	Mar 9, 1999
216	Bayshore Operating Co.	2	2	2	0	Apr 11, 2002	Apr 17, 2002
217	Canam Resources, Inc.	2	2	0	0	May 25, 1979	May 25, 1979
218	Carmel Energy, Inc.	2	2	0	0	Nov 29, 1979	Apr 30, 1981
219	Christopher Oil & Gas Inc	2	2	0	0	Feb 6, 1996	Feb 8, 1996
220	Clay Energy	2	2	0	0	May 25, 1988	Jan 5, 1989
221	Coastal Oil & Gas Corporation	2	2	0	0	May 5, 2000	May 5, 2000
222	Comstock Oil & Gas, LP	2	2	2	0	Oct 18, 2010	Oct 14, 2013
223	Cude, James W. Oil	2	2	0	0	Jul 24, 1984	Aug 28, 1984
224	Culoco, Inc.	2	2	2	0	Aug 28, 1991	Aug 28, 1991
225	Dale Operating Company	2	2	0	0	Mar 7, 2000	Mar 22, 2000
226	Damson Oil Corp.	2	2	0	0	Mar 23, 1982	Jun 11, 1982
227	Davis Oil Company	2	2	0	0	Mar 28, 1979	Apr 1, 1985
228	Delcar, Inc.	2	2	0	0	Jul 10, 1989	Oct 17, 1989
229	Dixon Management Corp.	2	2	0	0	Mar 13, 1981	Oct 19, 1981
230	Dow Chemical Co., The	2	2	0	0	Aug 30, 1979	Jan 30, 1980
231	Dune Operating Company	2	2	0	0	Sep 18, 2007	Apr 5, 2011
232	Eagle Ford Disposal LLC	2	2	0	0	May 2, 2011	May 2, 2011
233	Enterprise Products Operating LP	2	2	0	0	Jun 20, 2005	Jan 30, 2007
234	Esenjay Petroleum Corp.	2	2	0	0	Sep 16, 1997	Sep 16, 1997
235	Ethyl Corporation	2	2	0	0	Jun 22, 1983	Dec 16, 1983
236	Famcor Oil, Inc	2	2	0	0	Feb 5, 1996	Jul 31, 1996
237	Finger, Joe & Miller, W. C.	2	2	0	0	Feb 12, 1991	Feb 12, 1991
238	Foster, James T.	2	2	0	0	Sep 24, 1980	Sep 24, 1980
239	Genesis Petroleum Corporation	2	2	0	0	Dec 6, 1984	Feb 19, 1985
240	Goldking Prod. Co.	2	2	0	0	Jun 18, 1981	Jul 5, 1983
241	HMC Resources Corporation	2	2	0	0	Oct 6, 1983	Oct 6, 1983
242	Hurd Enterprises, Ltd.	2	2	0	0	Apr 16, 1997	Apr 16, 1997
243	Karis Resources, LLC	2	2	0	0	May 3, 2012	May 4, 2012
244	Lakewood Operating, Ltd.	2	2	0	0	Dec 10, 1997	Dec 10, 1997
245	Lundberg Operating Corporation	2	2	2	0	Apr 2, 2002	Apr 16, 2002
246	Mascot Oil Company	2	2	0	0	Mar 30, 1994	Nov 2, 1994
247	McCord Exploration Co.	2	2	0	0	Sep 13, 1985	Aug 5, 1987
248	Mortimer Exploration Company	2	2	0	0	Apr 27, 1987	Apr 30, 1987
249	Natural Gas Electronics Corp.	2	2	0	0	Jul 9, 1980	Jul 25, 1980
250	Nucorp Energy, Inc.	2	2	0	0	Nov 26, 1979	Apr 16, 1980
251	Oak Valley Operating, LLC	2	2	2	0	Dec 3, 2014	Dec 3, 2014
252	Parker & Parsley Petroleum Co.	2	2	0	0	Oct 6, 1987	Dec 7, 1987
253	Perryman Oil & Gas Inc.	2	2	0	0	Dec 2, 1983	Jan 7, 1985
254	Primary Fuels, Inc.	2	2	0	0	Jul 22, 1982	Nov 15, 1982
255	Proco Operating Co., Inc.	2	2	0	0	May 12, 2010	Dec 29, 2010
256	Pyote Water Systems II, LLC	2	2	0	0	Dec 29, 2011	Aug 8, 2012
257	Realitos Energy Corp.	2	2	0	0	Oct 27, 1980	May 27, 1981
258	Rio Bravo Oil Co., Inc.	2	2	0	0	Nov 3, 1978	Dec 19, 1979
259	Rio Exploration Company	2	2	0	0	Dec 27, 1989	Mar 12, 1990
260	R-K Oil & Gas Company	2	2	0	0	Jul 13, 1978	Sep 26, 1979
261	Sabine Production Company	2	2	0	0	Mar 12, 1980	Mar 12, 1980
262	Sable Environmental, LLC	2	2	0	0	Dec 6, 2011	Apr 17, 2014
263	Samedan Oil Corporation	2	2	0	0	May 22, 1997	Jul 22, 1999
264	Santa FE Energy Oper. Part., LP	2	2	1	0	Nov 17, 1988	Feb 21, 1991
265	Savage Exploration, Inc.	2	2	0	0	Dec 7, 1990	Dec 7, 1990
266	Saxet Energy, Ltd.	2	2	0	0	Dec 29, 2000	Dec 29, 2000
267	Seagull Energy E&P Inc.	2	2	0	0	Mar 19, 1991	Mar 19, 1991
268	Stroope, James L.	2	2	0	0	Jul 16, 1979	Jul 16, 1979
269	Tenneco Oil Company-Tgcd	2	2	0	0	May 22, 1985	May 22, 1985
270	Tens-Wood Oil & Gas Corp.	2	2	0	0	Oct 17, 1978	Oct 17, 1978
271	Thompson, Richard W. Inc.	2	2	0	0	Dec 6, 1999	Dec 6, 1999
272	TXO Production Corp.	2	2	0	0	Dec 31, 1982	Feb 11, 1986
273	Wainoco Oil & Gas Company	2	2	2	0	Feb 15, 1991	Feb 15, 1991
274	Western Alliance Exploration	2	2	0	0	May 25, 1984	Aug 3, 1984
275	Westin Oil Co.	2	2	0	0	Dec 29, 1987	Dec 29, 1987
276	Tidewater Minerals Corporation	1	1	0	17	Aug 11, 2007	Aug 11, 2007
277	Crawford Hughes Operating Co.	1	1	0	7	Oct 24, 2008	Oct 24, 2008
278	Janssen, Nelson	1	1	0	4	Jan 25, 1995	Jan 25, 1995
279	Bridge Oil Company, L. P.	1	1	0	3	Jun 13, 1991	Jun 13, 1991
280	Finley Resources, Inc.	1	1	0	3	Oct 17, 2007	Oct 17, 2007
281	Pennzenergy Exp. & Prod., L.L.C.	1	1	0	3	Jan 28, 2000	Jan 28, 2000
282	Devon Louisiana Corporation	1	1	0	2	Sep 29, 2004	Sep 29, 2004
283	Gulf Oil Corp.	1	1	0	2	Mar 22, 1984	Mar 22, 1984
284	HCW Exploration, Inc.	1	1	0	2	Sep 17, 1985	Sep 17, 1985
285	Huber, J. M., Corporation	1	1	0	2	Feb 1, 1991	Feb 1, 1991
286	Karbuhn Oil Company	1	1	0	2	Dec 16, 2009	Dec 16, 2009
287	Martin, Glen A.	1	1	0	2	Oct 11, 1983	Oct 11, 1983
288	White Marlin Operating Co, LLC	1	1	0	2	Nov 6, 2015	Nov 6, 2015
289	Anderson Oil Ltd	1	1	0	1	Dec 1, 2006	Dec 1, 2006
290	Bayshore Operating Corp., L.L.C.	1	1	1	1	Jan 19, 2010	Jan 19, 2010
291	Bluco Production Co., Inc.	1	1	0	1	Jul 11, 1983	Jul 11, 1983
292	Equinox Oil Company, Inc.	1	1	1	1	Nov 6, 1992	Nov 6, 1992
293	Geological Research Corp.	1	1	0	1	Apr 18, 1978	Apr 18, 1978
294	Grand Operating, Inc.	1	1	0	1	Dec 31, 2018	Dec 31, 2018
295	Kelpetro, Inc.	1	1	0	1	May 25, 1989	May 25, 1989
296	Lewis Petro Properties, Inc.	1	1	0	1	Jan 24, 2007	Jan 24, 2007
297	Mardam Exploration, Inc.	1	1	0	1	Dec 31, 1980	Dec 31, 1980
298	Newfield Exploration Company	1	1	0	1	Aug 12, 2005	Aug 12, 2005
299	Property Development Group, Inc.	1	1	0	1	Sep 20, 2004	Sep 20, 2004
300	Rhino Operating Company, LLC	1	1	0	1	Nov 7, 2012	Nov 7, 2012

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