COUNTIES · REFUGIO · OPERATORS

Refugio 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	Hilcorp Energy Company	1,656	1,656	11	1,348	Jan 4, 1989	Nov 5, 2026
2	Quintana Pet. Corp.	1,245	1,245	0	110	Jun 7, 1977	Dec 13, 2000
3	T - C Oil Company	776	776	0	169	Jul 7, 1977	Nov 8, 2011
4	Exxon Corp.	263	263	0	133	Jun 20, 1977	May 12, 1997
5	T-C Oil Company, LLC	219	219	3	618	Jun 28, 2011	Oct 28, 2026
6	Amoco Production Company	177	177	0	35	Jun 20, 1977	Jul 22, 1993
7	Acock/Anaqua Operating Co., LP	92	92	2	56	Aug 20, 2003	Feb 11, 2022
8	TXO Production Corp.	92	92	0	31	Mar 9, 1981	Feb 8, 1990
9	C & E Operating, Inc.	84	84	0	45	Nov 10, 1997	Feb 7, 2005
10	Christopher Oil & Gas Inc	72	72	0	18	Apr 19, 1984	Sep 2, 2014
11	Chilton Energy	63	63	0	18	Oct 27, 1989	Jul 10, 2001
12	Hewit & Dougherty	63	63	0	15	Jun 13, 1977	Nov 21, 1988
13	Pennzoil Producing Co.	62	62	0	9	Jul 11, 1977	Dec 17, 1986
14	CTR Petroleum, Inc.	60	60	0	123	May 4, 1988	Apr 23, 2007
15	Kebo Oil & Gas, Inc.	57	57	0	35	Nov 8, 1991	Oct 31, 2024
16	Emerald Oil & Gas LC	57	57	0	23	Aug 2, 1993	Nov 7, 2011
17	Cummins & Walker Oil Co., Inc.	57	57	0	20	Jan 24, 1978	Sep 22, 2006
18	Wiser Oil Company, The	56	56	0	25	Jun 5, 1997	May 2, 2005
19	Laroco LLP	53	53	0	11	Mar 29, 1994	Sep 26, 2007
20	Copano Company	47	47	0	3	Jun 22, 1977	Jan 21, 1999
21	Gilster, Ralph R. III	43	43	0	0	Aug 20, 1997	Feb 2, 2004
22	Maran Oil Company	42	42	0	13	Nov 17, 1977	Dec 9, 2020
23	H & D Operating Company	40	40	0	37	Aug 9, 1989	Nov 13, 2013
24	Texas Oil & Gas Corp.	38	38	0	31	Sep 9, 1977	Jul 30, 1981
25	Charro Operating, L.L.C.	38	38	0	24	May 26, 2005	Jun 14, 2023
26	Great Bay Operations, LLC	34	34	0	6	Feb 12, 2009	Apr 30, 2015
27	Dale Operating Company	33	33	0	1	Oct 20, 1995	May 1, 2002
28	Rutherford Oil Corporation	32	32	0	49	Jun 15, 1977	Oct 3, 1990
29	Andress Petroleum, Inc.	32	32	0	4	Apr 13, 1981	Jul 12, 1984
30	Pennzoil Exploration & Prod. Co.	28	28	0	6	Aug 13, 1990	Oct 22, 1998
31	Freeman, James C.	27	27	0	10	Jun 28, 1977	Feb 25, 1985
32	Arco Oil & Gas Co.	26	26	0	17	Oct 10, 1979	Jul 8, 1988
33	Bishop Petroleum Inc.	26	26	0	11	Jan 27, 1994	Nov 30, 2004
34	Expando Production Company	26	26	0	8	Sep 15, 1977	Sep 24, 1987
35	Expando Oil Company	23	23	0	1	Dec 31, 1981	Sep 16, 1988
36	Braman, D. H., Jr.	22	22	0	8	Sep 21, 1977	Nov 12, 2002
37	High Plains Gas Systems, Inc.	20	20	0	19	Apr 20, 2004	Jun 20, 2014
38	Primrose Operating Company	20	20	0	18	Mar 14, 2002	May 17, 2005
39	Fischer Petroleum Corporation	20	20	0	3	Aug 2, 1977	May 29, 1990
40	J3 Oil Co., Inc.	20	20	0	3	Feb 27, 1979	Dec 31, 1984
41	Brooklyn Union Explor. Co., Inc.	20	20	0	2	Jun 10, 1986	Mar 28, 1994
42	McDonald & Johnson Resources,llc	20	20	0	0	May 25, 2007	Apr 22, 2009
43	Remora Management, LLC	19	19	0	20	Apr 21, 2005	Aug 28, 2019
44	Goldking Prod. Co.	19	19	0	3	Aug 17, 1979	Aug 28, 1985
45	Dewbre Petroleum Corporation	18	18	0	10	Jan 8, 1991	Aug 22, 2013
46	Salida Exploration, LLC	18	18	0	10	Dec 22, 2004	Jun 14, 2013
47	North American Royalties, Inc.	18	18	0	8	Jun 14, 1977	Jul 6, 1987
48	Devon Energy Production Co, L.P.	17	17	0	26	May 24, 2000	Oct 16, 2001
49	Sun Exploration & Production Co.	17	17	0	23	Jun 10, 1977	Dec 12, 1988
50	Dinero Oil Corporation	17	17	0	11	Sep 21, 1989	Oct 3, 1996
51	Cambrian Management, Ltd.	17	17	0	0	Dec 6, 2007	Sep 7, 2010
52	Petro-Lewis Corporation	17	17	0	0	Dec 9, 1980	Jan 25, 1984
53	Rising Star Energy Partners II,	16	16	0	56	May 13, 2026	Oct 1, 2026
54	Citation Oil & Gas Corp.	16	16	0	6	Aug 19, 1991	May 11, 2005
55	Copano Gas Unit	16	16	0	3	Jun 20, 1977	Jun 27, 2001
56	Mantle Oil & Gas, LLC	16	16	0	1	Apr 29, 2008	Nov 15, 2011
57	H-M Oil Company	16	16	0	0	Jun 22, 1978	Nov 1, 1989
58	Anderson Oil Corporation	15	15	0	2	Feb 25, 1991	May 3, 1999
59	Anderson Oil Ltd.	14	14	0	26	Nov 23, 1999	Aug 31, 2015
60	Petroleum Management, Inc.	14	14	0	14	Sep 29, 1977	Jun 22, 1990
61	Frostwood Energy, LLC	13	13	3	8	Sep 12, 2014	Mar 3, 2020
62	Sun Expl. & Prod. Co.-Houston	13	13	0	3	Sep 8, 1978	Mar 10, 1983
63	Fischer Operating Corporation	13	13	0	2	Sep 7, 1990	May 31, 1996
64	Kamlok, Inc.	13	13	0	1	Jun 25, 1987	Oct 10, 1990
65	American Petrofina Co. of Tex.	12	12	0	7	Mar 5, 1979	Mar 18, 1985
66	Ken Petroleum Corporation	12	12	0	4	Jan 11, 1980	May 10, 1993
67	Rincon Petroleum Corporation	12	12	0	2	Nov 19, 1982	Aug 7, 2014
68	Bridge Oil Production Co., Inc.	12	12	0	0	May 14, 1991	Jun 8, 1993
69	Kamlok Oil & Gas, Inc.	12	12	0	0	Jan 23, 1991	Aug 9, 1994
70	Nordan & Company	11	11	0	11	Jun 30, 1977	Aug 15, 1997
71	Wofford, C. J.	11	11	0	9	Dec 8, 1995	Jun 13, 2003
72	Bayou Company, The	11	11	0	4	Feb 13, 1981	Jul 23, 1987
73	Beard Energy Group, Inc.	11	11	0	0	Sep 23, 1983	May 2, 1985
74	Pace West Production LC	11	11	0	0	Aug 2, 1993	Jul 14, 1994
75	Neumin Production Company	10	10	0	8	Jun 4, 1982	Jul 17, 2008
76	La Rosa Corporation	10	10	0	3	Dec 1, 1977	Mar 12, 1981
77	Hurd Enterprises, Ltd.	10	10	0	1	Nov 4, 2011	May 8, 2015
78	McCarter, W. B. Jr.	10	10	0	1	Aug 2, 1985	Apr 23, 2001
79	Thompson, John R.	10	10	0	0	Aug 8, 1977	Dec 31, 1981
80	Sun Expl. & Prod. Co.-Corpus	9	9	0	12	Mar 12, 1982	Apr 14, 1988
81	Forest Oil Corporation	9	9	0	8	Mar 11, 2005	Aug 6, 2010
82	Acock/Anaqua Operating Co., LC	9	9	0	5	Jun 13, 2002	Feb 6, 2004
83	McLeod, George L. Inc.	9	9	0	2	Oct 29, 1982	May 25, 1994
84	Atlantic Richfield Co.	8	8	0	12	Jul 14, 1977	Mar 30, 1978
85	Coastal Oil & Gas Corporation	8	8	0	8	Jul 9, 1980	Apr 22, 1985
86	Oil Property Management Company	8	8	0	4	Feb 6, 1985	Oct 10, 1988
87	Hawn Brothers	8	8	0	1	Dec 30, 1983	Jun 30, 2000
88	Mellon Oil Unit	8	8	0	0	Oct 7, 1977	Jul 18, 1997
89	Republic Oil & Gas Corp.	8	8	0	0	Jul 24, 1980	Jul 1, 1982
90	San Patricio Corporation	8	8	0	0	Oct 14, 1982	Jul 22, 1991
91	Paloma Operating, LLC	7	7	0	24	Oct 12, 2022	Oct 29, 2024
92	Champlin Petroleum Co.	7	7	0	4	Jan 10, 1978	Oct 3, 1983
93	Energy International	7	7	0	2	Jul 18, 1977	Jun 6, 1979
94	Double Play Oil & Gas, Inc	7	7	0	1	Jun 24, 2002	Jun 10, 2021
95	Mardam Exploration, Inc.	7	7	0	1	Dec 29, 1980	Oct 31, 1983
96	Anaqua Oil & Gas, Inc.	7	7	0	0	Jan 27, 1993	May 24, 1995
97	Encino Oil Corporation	7	7	0	0	Jul 28, 1983	Jul 19, 1984
98	Pace Oil and Gas Company	7	7	0	0	Oct 11, 1990	Nov 22, 1993
99	Pennzenergy Exp. & Prod., L.L.C.	7	7	0	0	Apr 1, 1999	Mar 28, 2000
100	38 Oil & Gas, L.L.C.	6	6	0	39	Dec 19, 2003	May 11, 2006
101	Acock Engineering & Assoc., Inc.	6	6	0	3	Aug 29, 1994	Mar 25, 2002
102	Energy Development Corp. - N. J.	6	6	0	3	Oct 27, 1977	May 14, 1984
103	Geiser, D. Allen	6	6	0	3	Mar 20, 1987	Nov 15, 1993
104	Slack Oil & Gas	6	6	0	3	Apr 7, 1993	May 19, 1997
105	Heritage Operating Co., Inc. The	6	6	0	2	Dec 27, 1978	Oct 6, 1982
106	Simray Oil & Gas, Inc.	6	6	0	0	Nov 5, 1996	Jan 31, 2003
107	Starrett, C. E.	5	5	0	33	Oct 31, 1977	Apr 22, 1988
108	Texaco Inc.	5	5	0	6	Nov 10, 1977	May 17, 1985
109	Hewit & Dougherty&rutherford,p.r	5	5	0	4	Apr 11, 1978	Jun 14, 1984
110	Pool Operating Corporation	5	5	0	3	Mar 16, 2009	Nov 22, 2011
111	L & F Drilling Co.	5	5	0	2	Jun 21, 1979	Aug 9, 1982
112	Sohio Petroleum Co.	5	5	0	2	Nov 2, 1977	Dec 19, 1983
113	Tuthill & Barbee	5	5	0	2	Nov 20, 1980	Nov 9, 1984
114	Brayton Oil Corp.	5	5	0	1	Aug 1, 1989	Jul 8, 1992
115	Trinity Resources, Inc.	5	5	0	1	Feb 2, 1983	Jul 19, 1984
116	Denovo Oil & Gas, Inc.	5	5	0	0	Mar 7, 1986	Nov 10, 1989
117	J&G Oil & Gas	5	5	0	0	Dec 19, 2000	Jan 11, 2005
118	Beckham Resources, Inc.	4	4	0	5	Jul 30, 2001	Sep 12, 2007
119	Coastal Plains Exploration, LLC	4	4	0	3	May 11, 2009	May 5, 2011
120	Coastal States Gas Prod. Co.	4	4	0	3	Sep 12, 1977	Jan 11, 1978
121	Conoco Inc.	4	4	0	3	Mar 12, 1980	Jul 20, 1983
122	Fagan, James E.	4	4	0	3	Apr 29, 1980	Feb 6, 1987
123	Fagan-O'Connor, Inc.	4	4	0	3	Aug 19, 1982	Oct 20, 1983
124	Mitchell, M. J.	4	4	0	2	Jan 30, 1980	Aug 16, 1982
125	Prairie Producing Company	4	4	0	2	Mar 7, 1978	Oct 26, 1978
126	Republic Resources, LLC.	4	4	0	2	Oct 19, 2005	Jun 15, 2007
127	Southern Royalty Inc.	4	4	0	2	Oct 11, 1983	Jul 29, 1986
128	7HF Oil Co., Ltd.	4	4	0	1	Oct 18, 1978	Aug 19, 1982
129	Esenjay Petroleum Corp.	4	4	0	1	Apr 29, 1980	Dec 13, 1984
130	Goldston Oil Corp.	4	4	0	1	Jun 27, 1977	Oct 13, 1977
131	Lowmar Exploration Company	4	4	0	1	Jan 22, 1985	Aug 5, 1986
132	M. J. G., Inc.	4	4	0	1	Oct 25, 1990	Oct 21, 1991
133	MPG Petroleum	4	4	0	1	Mar 26, 1990	Dec 1, 1994
134	American Energy Partners, Inc.	4	4	0	0	Dec 13, 2005	Oct 4, 2007
135	American Shoreline, Inc.	4	4	0	0	Jul 15, 1983	Dec 5, 2001
136	Bell, Kelly	4	4	0	0	Dec 30, 1983	Aug 28, 1987
137	Riddle Engineering Corp.	4	4	0	0	Jul 23, 2008	Oct 11, 2008
138	Southport Exploration Inc.	4	4	0	0	May 2, 1984	Oct 3, 1984
139	Greta Operating Company LLC	3	3	2	104	May 10, 2022	Sep 11, 2024
140	Bay Rock Operating Company	3	3	0	11	Mar 8, 1984	Mar 28, 1985
141	Fina Oil & Chemical Company	3	3	0	11	Oct 9, 1985	Apr 8, 1986
142	San Isidro Development Co, L. C.	3	3	0	10	Sep 15, 2022	Aug 31, 2023
143	B & F Operating Company, Inc.	3	3	0	8	Jan 24, 1990	Mar 9, 1990
144	Mueller Engineering Corp.	3	3	0	5	Sep 29, 1983	Feb 2, 1994
145	Allegro Investments, Inc.	3	3	0	4	May 9, 1990	Jul 22, 2008
146	Acock Eng & Shoreham Oil & Gas	3	3	0	3	Dec 22, 1987	Dec 19, 1988
147	Energy Unlimited, Inc.	3	3	0	3	Feb 28, 1980	May 17, 1983
148	Logue and Patterson Inc.	3	3	0	3	Oct 18, 1977	Aug 28, 1978
149	Tepee Petroleum Co., Inc.	3	3	0	3	Sep 16, 1988	Nov 20, 1989
150	Aurora Resources Corporation	3	3	0	2	Dec 5, 2006	Sep 11, 2014
151	M-V Company	3	3	0	2	Nov 17, 1978	Jun 4, 1992
152	Thompson, John R. Operating, Inc	3	3	0	2	Nov 18, 1977	Dec 31, 1980
153	Atwood Exploration Company	3	3	0	1	Jan 13, 1984	Mar 5, 1987
154	Beach Exploration, Inc.	3	3	0	1	Nov 28, 1989	Dec 1, 1989
155	Cox, Edwin L. & Cox, Berry R.	3	3	0	1	Oct 22, 1980	Oct 18, 1983
156	Gose, Steve	3	3	0	1	Dec 22, 1978	Oct 16, 1979
157	Harper Hefte, Inc.	3	3	0	1	Oct 22, 1986	Nov 18, 1987
158	Maudelowe Oil Company	3	3	0	1	Aug 9, 1982	Mar 28, 1985
159	Pearl, Bill H. Productions, Inc.	3	3	0	1	Mar 8, 1988	Apr 25, 1988
160	Peet Oil Company	3	3	0	1	Jun 7, 1977	Feb 21, 1979
161	Ampak Oil Company	3	3	0	0	Aug 15, 2002	Sep 24, 2004
162	Cockrell Corp.	3	3	0	0	Jul 21, 1978	Sep 18, 1978
163	Cockrell Oil Corporation	3	3	0	0	Jun 6, 1980	Jun 22, 1984
164	Continental Oil Company	3	3	0	0	Aug 2, 1977	Oct 18, 1978
165	Cox, Edwin L. & Hamon, Jake L.	3	3	0	0	May 24, 1978	Nov 26, 1984
166	Hughes & Hughes	3	3	0	0	Mar 31, 1981	Jul 2, 1981
167	KCS Resources, Inc.	3	3	0	0	Sep 13, 2000	Feb 15, 2001
168	Pintex Operating Inc.	3	3	0	0	Jul 23, 1984	Nov 30, 1990
169	Quintex Petroleum Corp.	3	3	0	0	Nov 16, 1978	Apr 12, 1982
170	Southwest Oil & Land, Inc.	3	3	0	0	Jan 6, 1988	Oct 10, 1996
171	Tenneco Uranium, Inc.	3	3	0	0	Jan 20, 1982	Jan 20, 1982
172	Whittier Operating Inc	3	3	0	0	Apr 16, 2004	Sep 16, 2005
173	Williams Expl Co a Delaware Corp	3	3	0	0	Jun 23, 1982	Oct 5, 1982
174	O'Connor Energy Management, LLC	2	2	0	23	Jul 28, 2015	Aug 14, 2015
175	Gardner, J. B.	2	2	0	7	Jun 6, 1988	Jul 22, 1988
176	Gas Producing Enterprises, Inc.	2	2	0	6	Nov 23, 1977	Jan 11, 1978
177	Jones, Edwin M. Oil Co.	2	2	0	6	Mar 1, 1984	Jun 4, 1986
178	Bay Rock Corp.	2	2	0	4	Jun 23, 1983	Dec 8, 1983
179	Cavalla Energy Exploration Co.	2	2	0	2	Sep 26, 1977	Feb 9, 1978
180	Frank, Allison & Associates,inc.	2	2	0	2	Jun 6, 1986	Oct 12, 1989
181	JTB Oil Company, Inc.	2	2	0	2	Apr 9, 1996	Apr 9, 1996
182	Parsons Engineering Corporation	2	2	0	2	Nov 27, 1985	May 15, 1987
183	Acock Engineering & Operating Co	2	2	0	1	Apr 18, 1983	May 23, 1985
184	Atinum Operating, Inc.	2	2	0	1	Jul 21, 2008	Apr 19, 2010
185	Brigham Oil & Gas, L.P.	2	2	0	1	Jun 12, 2003	Sep 21, 2005
186	Discovery Energy Corp. CC	2	2	0	1	Jun 12, 1990	Jan 26, 1996
187	Drillmar Operating Company	2	2	0	1	Dec 3, 2007	Oct 8, 2008
188	Flournoy Production Co.	2	2	0	1	Jun 7, 1988	Oct 5, 1989
189	Lundberg Operating Corporation	2	2	0	1	Jan 30, 1995	Mar 5, 1997
190	Northern Pump Company	2	2	0	1	Feb 6, 1980	Feb 25, 1981
191	Setex Oil and Gas Company	2	2	0	1	May 15, 2001	Mar 26, 2002
192	Texas Fuel Company	2	2	0	1	Dec 4, 1989	Dec 15, 1989
193	Texas Western Energy Corporation	2	2	0	1	Jun 18, 1996	May 1, 1997
194	Adams Exploration	2	2	0	0	Jan 25, 1988	Sep 19, 1990
195	Alamo Operating Company, L. C.	2	2	0	0	Oct 10, 2013	Oct 1, 2014
196	American Int'l Energy Corp.	2	2	0	0	Nov 7, 1994	Dec 5, 1994
197	Ashland Exploration, Inc.	2	2	0	0	Jul 17, 1978	Apr 11, 1979
198	Bagnall & Barber, Inc.	2	2	0	0	Dec 9, 1992	Nov 18, 1993
199	Basic Energy Services, L.P.	2	2	0	0	Oct 2, 2013	Oct 29, 2013
200	Braman, D. H.	2	2	0	0	Oct 27, 1978	Nov 13, 1980
201	Brooner, Frank I. Jr.	2	2	0	0	Mar 30, 1988	Dec 20, 1988
202	Choice Exploration, Inc.	2	2	0	0	Aug 29, 2000	Jun 21, 2001
203	Conocophillips Texas Gulf Coast	2	2	0	0	Feb 2, 2024	Feb 2, 2024
204	Conquest Petroleum, Inc.	2	2	0	0	Dec 6, 1983	Dec 6, 1983
205	Crimson Exploration Inc.	2	2	0	0	Oct 27, 2005	Nov 2, 2005
206	Double Play Oil & Gas	2	2	0	0	Jan 17, 2002	Feb 15, 2002
207	El Paso Energy Intrastate, L.P.	2	2	0	0	Mar 29, 2002	Mar 29, 2002
208	Forney, Bill, Inc.	2	2	0	0	Mar 27, 1984	Nov 30, 1984
209	Genesis Producing Company	2	2	0	0	Nov 10, 2006	Sep 14, 2007
210	Haring Corp.	2	2	0	0	Sep 28, 1977	Apr 15, 1981
211	Jamex, Inc.	2	2	0	0	Aug 13, 1993	Sep 6, 1995
212	KTX Management Co.	2	2	0	0	Jul 10, 1984	Jul 13, 1984
213	Lamar Oil & Gas, Inc.	2	2	0	0	Feb 21, 2019	Aug 3, 2021
214	L & F Drilling Co., Inc. (1)	2	2	0	0	Jul 11, 1986	Feb 27, 1989
215	Longhorn Oil&gas Co.	2	2	0	0	Jul 16, 1981	May 14, 1982
216	Maynard Oil Co.	2	2	0	0	Sep 27, 1977	May 5, 1978
217	McFarlane Oil Co., Inc.	2	2	0	0	May 14, 1979	Oct 26, 1981
218	MCS, Ltd.	2	2	0	0	Jan 15, 1981	Nov 25, 1981
219	Mesa Chica Corp.	2	2	0	0	Dec 12, 1991	Jun 16, 1992
220	Millennium Exploration Co. LLC	2	2	0	0	Mar 10, 2016	Jan 29, 2018
221	Mobil Exploration Company, Inc.	2	2	0	0	Dec 6, 1979	Sep 29, 1980
222	Modern Exploration, Inc.	2	2	0	0	May 26, 2005	Aug 18, 2006
223	Moore McCormack Production, Inc.	2	2	0	0	Sep 17, 1979	Jul 8, 1982
224	Parker & Parsley Producing L.P.	2	2	0	0	Jan 4, 1996	Jan 4, 1996
225	Pedeco, Inc.	2	2	0	0	Apr 11, 1997	Jan 13, 1998
226	Pwi-Willco, Inc.	2	2	0	0	Apr 5, 2001	Aug 6, 2001
227	Sandia Management, Inc.	2	2	0	0	Apr 15, 1988	Apr 28, 1988
228	Saxet Energy, Ltd.	2	2	0	0	Apr 10, 2000	Jan 12, 2001
229	SE USA Operating, Inc.	2	2	0	0	Jun 3, 2008	Sep 24, 2009
230	S.G. Operating	2	2	0	0	Dec 30, 1991	Aug 5, 1992
231	Smith, Jack W.	2	2	0	0	Oct 20, 1978	Apr 28, 1980
232	Sue-Ann Operating, L.C.	2	2	0	0	May 13, 2008	Sep 29, 2008
233	Tenneco Oil Company-Tgcd	2	2	0	0	Sep 24, 1985	Jan 20, 1986
234	Tepco Engineering	2	2	0	0	Nov 25, 1986	Dec 18, 1986
235	Texas City Refg. Inc.	2	2	0	0	Jun 4, 1982	Jun 22, 1983
236	Victoria Equip. & Supply Co Inc	2	2	0	0	Apr 8, 1985	Aug 21, 1985
237	Kovar Operating, LLC	1	1	0	42	Nov 30, 2018	Nov 30, 2018
238	Mission River Systems, Inc.	1	1	0	18	Jun 19, 2000	Jun 19, 2000
239	Dinero Oil Company	1	1	0	9	Sep 8, 1978	Sep 8, 1978
240	Danoil,inc.,consumingassetscorp.	1	1	0	7	Oct 23, 1978	Oct 23, 1978
241	Dallas Petroleum Group, LLC	1	1	0	5	Apr 10, 2026	Apr 10, 2026
242	Hyquest Energy, Inc.	1	1	0	5	Apr 8, 1985	Apr 8, 1985
243	Josey, Lenoir M., Inc.	1	1	0	5	Mar 18, 1997	Mar 18, 1997
244	Trident Corporation	1	1	0	5	Sep 22, 1980	Sep 22, 1980
245	Hart Petroleum Services, Inc	1	1	0	4	May 31, 1995	May 31, 1995
246	Carter Exploration Company	1	1	0	3	Oct 6, 1977	Oct 6, 1977
247	Meeker & Company	1	1	0	3	Mar 23, 1982	Mar 23, 1982
248	Shenandoah Oil Corp.	1	1	0	3	Sep 1, 1977	Sep 1, 1977
249	Valence Operating Company	1	1	0	3	Jun 25, 2010	Jun 25, 2010
250	Cimarron Engineering, LLC	1	1	0	2	Apr 11, 2022	Apr 11, 2022
251	Crimson Exploration Oper., Inc.	1	1	0	2	Jul 18, 2006	Jul 18, 2006
252	Mobil Producing TX. & N.M. Inc.	1	1	0	2	Feb 2, 1984	Feb 2, 1984
253	Tal-Con, Inc.	1	1	0	2	Nov 18, 1988	Nov 18, 1988
254	Whitehall Operating Inc.	1	1	0	2	Jun 11, 1991	Jun 11, 1991
255	Amherst Exploration Co., Inc.	1	1	0	1	Mar 23, 1989	Mar 23, 1989
256	Carl, W.E.-Cavalla-Cox, E.L.	1	1	0	1	Oct 30, 1979	Oct 30, 1979
257	Chambers, Jerry Exploration Co.	1	1	0	1	Dec 23, 1985	Dec 23, 1985
258	CHP Oil & Gas Company, L.C.	1	1	0	1	Oct 19, 2000	Oct 19, 2000
259	Egan-Wilson Petroleum, Inc.	1	1	0	1	Mar 18, 1981	Mar 18, 1981
260	Graham-McCormick Operating Prtn.	1	1	0	1	Aug 26, 1985	Aug 26, 1985
261	Gruy Petroleum Management Co.	1	1	0	1	May 14, 1996	May 14, 1996
262	Haring, Louis H., Jr.	1	1	0	1	Sep 12, 1977	Sep 12, 1977
263	Huisache Operating Co.	1	1	0	1	Jun 10, 1977	Jun 10, 1977
264	Marmaduke, R. C.	1	1	0	1	Dec 11, 1984	Dec 11, 1984
265	Patterson, Joe H.	1	1	0	1	Jun 9, 1983	Jun 9, 1983
266	Slack, Jack Operating	1	1	0	1	May 25, 1981	May 25, 1981
267	Texas Gulf Co.	1	1	0	1	Jul 18, 2000	Jul 18, 2000
268	Abraxas Petroleum Corporation	1	1	0	0	Feb 7, 1997	Feb 7, 1997
269	Adams Resources Expl. Corp.	1	1	0	0	Aug 2, 1999	Aug 2, 1999
270	Alamo Pet. Co.	1	1	0	0	Dec 29, 1978	Dec 29, 1978
271	Amcole Energy Corp.	1	1	0	0	Sep 29, 1980	Sep 29, 1980
272	Anadarko Production Company	1	1	0	0	Nov 14, 1978	Nov 14, 1978
273	Anderson, Steven C.	1	1	0	0	Oct 10, 2002	Oct 10, 2002
274	Andor Corp.	1	1	0	0	Oct 25, 1977	Oct 25, 1977
275	Aransas Drlg & Workover Co Inc	1	1	0	0	Jun 4, 1996	Jun 4, 1996
276	Ashland Oil, Inc.	1	1	0	0	Jun 13, 1977	Jun 13, 1977
277	A T M Corporation	1	1	0	0	Mar 24, 2000	Mar 24, 2000
278	Bandera Exploration Company	1	1	0	0	Nov 17, 1999	Nov 17, 1999
279	Baxter, Murphy H.	1	1	0	0	Jan 13, 1983	Jan 13, 1983
280	Bayside Petroleum Corp.	1	1	0	0	Dec 5, 1980	Dec 5, 1980
281	Belco Petroleum Corporation	1	1	0	0	Oct 27, 1978	Oct 27, 1978
282	Bell, Kelly Inc.	1	1	0	0	Nov 14, 1983	Nov 14, 1983
283	Bellows, Dewey Oper. Co., Ltd.	1	1	0	0	Aug 31, 1994	Aug 31, 1994
284	Blount Pet., Inc. & Tepco Eng.	1	1	0	0	Feb 19, 1988	Feb 19, 1988
285	Bridge Oil Company, L. P.	1	1	0	0	Jul 28, 1993	Jul 28, 1993
286	Bright & Co.	1	1	0	0	Nov 19, 1979	Nov 19, 1979
287	Bse Production Co.	1	1	0	0	Jun 20, 1986	Jun 20, 1986
288	Cantro Exploration, Inc.	1	1	0	0	Jul 31, 1984	Jul 31, 1984
289	Carl, W. E. & Cavalla	1	1	0	0	Aug 5, 1981	Aug 5, 1981
290	Cde Exploration Company	1	1	0	0	Mar 31, 1983	Mar 31, 1983
291	Cimarron Engineering Corp.	1	1	0	0	Jun 6, 2002	Jun 6, 2002
292	Cliffwood Production Co.	1	1	0	0	Apr 8, 1998	Apr 8, 1998
293	Clover Energy Corporation	1	1	0	0	Aug 10, 1979	Aug 10, 1979
294	Cobra Operating Company	1	1	0	0	Sep 9, 1997	Sep 9, 1997
295	Continental Operating Co.	1	1	0	0	Jul 27, 2011	Jul 27, 2011
296	Cotton Petroleum Corp.	1	1	0	0	Sep 24, 1984	Sep 24, 1984
297	Cumming Company, Inc. The	1	1	0	0	Sep 5, 1996	Sep 5, 1996
298	Davis Crude, Inc.	1	1	0	0	Sep 23, 1981	Sep 23, 1981
299	Davis Oil Company	1	1	0	0	Jan 26, 1978	Jan 26, 1978
300	Decleva, Paul	1	1	0	0	Feb 6, 1986	Feb 6, 1986

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