COUNTIES · DUVAL · OPERATORS

Duval 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	Anaconda Co., The	645	645	0	0	Dec 18, 1978	Apr 29, 1982
2	Exxon Corp.	528	528	1	113	Jun 3, 1977	Oct 10, 1997
3	Texaco Inc.	499	499	0	79	Jun 22, 1977	Mar 3, 1986
4	Mobil Oil Corporation	430	430	0	52	Jun 22, 1977	Apr 20, 1982
5	Sabine Production Company	324	324	0	0	Oct 17, 1979	Oct 7, 1981
6	Killam Oil Co., Ltd.	188	188	0	480	Apr 12, 1995	Jul 30, 2025
7	Uranium Resources Inc.	183	183	0	11	May 14, 1979	Aug 13, 1984
8	Aquitaine Mining Corp.	165	165	0	0	Jan 11, 1979	Apr 26, 1982
9	Tri-C Resources, Inc.	129	129	0	2	Jan 14, 1988	Nov 3, 1994
10	Conoco Inc.	126	126	0	22	Aug 13, 1979	Jan 14, 1993
11	Atlantic Richfield Co.	117	117	0	8	Jun 23, 1977	Mar 28, 1979
12	Urex Inc.	102	102	0	0	Apr 14, 1980	Apr 29, 1982
13	Sonat Exploration Co. - Houston	96	96	0	39	Oct 5, 1993	Mar 12, 1998
14	EOG Resources, Inc.	96	96	10	17	Jan 16, 1997	Sep 11, 2014
15	Sanchez Oil & Gas Corporation	95	95	0	22	Jun 2, 1998	Aug 24, 2015
16	Mobil Producing TX. & N.M. Inc.	88	88	0	24	Mar 18, 1980	Apr 14, 1999
17	Union Oil Company of California	79	79	0	0	Oct 29, 1981	Oct 29, 1981
18	Arco Oil & Gas Co.	78	78	0	12	May 8, 1978	Nov 5, 1993
19	Nufuels Corporation	70	70	0	0	Oct 1, 1981	May 6, 1982
20	Dewbre, Jerry C., Trustee	65	65	0	27	Sep 16, 1998	Jul 16, 2015
21	Aurora Resources Corporation	60	60	0	94	Jul 7, 2010	Nov 17, 2025
22	Discorbis Oil Company	57	57	0	16	Apr 26, 1978	Apr 2, 2014
23	Lobo Resources, Ltd.	53	53	0	1	Sep 11, 1985	Jan 10, 1994
24	Sun Expl. & Prod. Co.-Houston	51	51	0	0	Oct 27, 1978	Jun 22, 1983
25	Genesis Petroleum Corporation	50	50	0	2	Nov 3, 1980	Sep 17, 1986
26	Tenneco Uranium, Inc.	48	48	0	0	Sep 25, 1981	May 6, 1982
27	Hilcorp Energy Company	47	47	0	609	Jan 23, 1998	Jul 26, 2019
28	Rio Exploration Company	45	45	0	7	Mar 11, 1983	May 14, 1990
29	Gathings Oil, Inc.	44	44	0	1	Mar 18, 1982	May 21, 1986
30	Miller, W. C. Operating Company	43	43	0	9	Oct 18, 1988	May 12, 2010
31	CMC Energy, Inc.	42	42	0	2	Jul 14, 1978	Jun 22, 1984
32	Samedan Oil Corporation	41	41	0	7	Jul 9, 1984	Sep 17, 2002
33	Shell Western E&P Inc.	41	41	1	6	Dec 20, 1983	Sep 2, 1998
34	Shell Oil Company	41	41	0	1	Sep 12, 1977	Dec 2, 1983
35	Hurd Enterprises, Ltd.	40	40	0	19	Jul 11, 1985	Oct 20, 2026
36	Esenjay Petroleum Corp.	38	38	0	3	May 9, 1980	Jul 2, 1993
37	Manti Operating Company	36	36	0	1	Jun 4, 1996	Feb 15, 2001
38	Hamilton, J. R. & Archer, J.R.	36	36	0	0	Mar 16, 1979	Jun 2, 1986
39	Iec Corp.	36	36	0	0	Apr 28, 1978	Jan 18, 1980
40	Sunoco Energy Development Co.	36	36	0	0	Feb 15, 1978	Jan 18, 1980
41	Trinity Gas Corporation	35	35	0	38	Jul 12, 1979	Apr 4, 2008
42	Noble Energy Inc	34	34	0	9	Jun 27, 2003	Dec 3, 2010
43	Hughes, Dan A. Company	34	34	0	3	Mar 14, 1990	Jan 7, 1997
44	Manfred Production Company	34	34	0	0	Mar 20, 1984	Apr 8, 1991
45	Newman Operating Company	32	32	0	88	Nov 16, 1987	Nov 6, 2020
46	Edge Petroleum Oper. Co., Inc.	32	32	0	3	Nov 15, 1996	Jun 29, 2007
47	Harkins & Company	31	31	0	5	Feb 16, 1979	Feb 1, 1990
48	KD Energy, LLC	30	30	0	78	Jul 10, 2008	Mar 16, 2026
49	Smith Production Inc.	30	30	0	5	Nov 28, 2006	Aug 2, 2017
50	St. Joe American Corp.	29	29	0	0	Jan 13, 1978	May 19, 1978
51	Tipco	28	28	0	45	Jul 8, 1977	Dec 31, 1981
52	Morsey Oil & Gas Corp.	28	28	0	37	Nov 16, 1981	Jun 9, 2012
53	Martin, Glen A.	28	28	0	21	Jun 22, 1977	Oct 1, 1985
54	Alco Drlg. Co.	28	28	0	20	Dec 10, 1980	Mar 23, 2000
55	Continental Oil Company	28	28	0	10	Jun 16, 1977	May 7, 1979
56	Suemaur Exploration, Inc.	28	28	0	5	Mar 15, 1984	May 19, 1995
57	Devon Louisiana Corporation	28	28	0	2	May 5, 2003	Feb 6, 2006
58	Sanchez-O'Brien Oil & Gas Corp.	26	26	0	7	Nov 15, 1978	Nov 13, 1997
59	Sun Expl. & Prod. Co.-Corpus	25	25	0	25	Feb 22, 1982	Apr 1, 1988
60	American Petrofina Co. of Tex.	25	25	0	6	Oct 26, 1977	Sep 5, 1985
61	Harvey Brothers Oil & Gas	25	25	0	2	Jul 11, 1988	Jan 6, 1997
62	Suemaur Corporation	25	25	0	2	Aug 8, 1977	Aug 24, 1988
63	Devon Energy Production Co, L.P.	24	24	1	21	Dec 5, 2005	Oct 10, 2012
64	Magnum Producing, LP	24	24	0	5	Sep 15, 2004	Jul 1, 2014
65	J-A-H, Inc.	24	24	0	4	May 25, 1978	May 30, 1984
66	El Dorado Resources Inc.	24	24	0	0	Dec 15, 1994	Oct 2, 1996
67	Tidal Petroleum, Inc.	23	23	0	10	Sep 28, 1999	Aug 22, 2006
68	Waters Eng. & Operating, Inc.	23	23	0	4	Dec 30, 1991	Feb 23, 1995
69	Saxet Energy, Ltd.	23	23	0	2	Sep 24, 1999	Mar 2, 2001
70	Chapco, Inc.	22	22	0	38	Feb 7, 1995	Jan 10, 2013
71	Laughlin, W. M.	22	22	0	6	May 3, 1978	Oct 30, 1989
72	Glenn Petroleum Corp.	22	22	0	5	Nov 24, 1982	Jan 12, 1988
73	Gulf Coast Minerals Co., Inc.	22	22	0	4	Sep 15, 1977	May 13, 1986
74	Coastal Uranium, Inc.	22	22	0	0	Jan 28, 1980	Jan 31, 1980
75	Speedman Company	22	22	0	0	Jun 18, 1981	Dec 16, 1991
76	Bleakley, Jack	21	21	0	17	Jun 16, 1977	Dec 22, 1978
77	Dewbre Petroleum Corporation	21	21	0	8	Mar 15, 1990	Dec 5, 2013
78	TXO Production Corp.	21	21	0	4	Oct 5, 1982	Jan 11, 1990
79	Expando Oil Company	21	21	0	2	Aug 18, 1977	May 26, 1987
80	Tesoro Petroleum Corporation	21	21	0	1	Jan 15, 1981	Oct 23, 1985
81	Man-Gas Transmission Company	20	20	0	39	Mar 28, 1984	Apr 12, 1989
82	Hamilton, J. R.	20	20	0	26	Nov 13, 1979	Feb 10, 2004
83	Pinney, Warren, Jr.	20	20	0	19	Jul 14, 1977	Nov 20, 1984
84	H-M Oil Company	20	20	0	5	Oct 30, 1979	Oct 17, 1989
85	Worldwide Energy Corporation	20	20	0	1	Jan 17, 1978	Aug 2, 1985
86	Mueller Engineering Corp.	19	19	0	13	Jun 25, 1979	Oct 5, 1994
87	SSM Partnership	19	19	0	10	Jan 30, 1978	Jun 30, 1982
88	Holiday Resources, Inc.	19	19	0	8	Feb 26, 1980	Nov 5, 1985
89	Ocean Energy, Inc.	19	19	0	8	May 10, 2001	Jul 10, 2003
90	Sue-Ann Operating, L.C.	19	19	0	4	Jul 12, 2002	Apr 7, 2008
91	C. M. Oil Corporation	19	19	0	3	Aug 23, 2002	Apr 26, 2012
92	Manges, Clinton	18	18	0	62	Nov 28, 1979	Jun 1, 1981
93	Triple L Oil Company	18	18	0	22	Dec 31, 1982	Sep 18, 1990
94	Awp Operating Company	18	18	0	6	Sep 14, 2012	Jun 2, 2021
95	American Shoreline, Inc.	17	17	0	5	Sep 7, 1983	Jun 3, 2013
96	Duval Production, Inc.	17	17	0	2	Sep 30, 1980	Jul 6, 1982
97	Live Oak Reserves, Inc.	17	17	0	2	Oct 9, 1997	Jun 21, 2006
98	Amoco Production Company	17	17	0	1	Aug 23, 1988	Apr 30, 1996
99	Faoc Operating LLC	17	17	0	0	Jun 17, 2013	Jul 12, 2013
100	Hinds Petroleum, LP	17	17	0	0	Apr 20, 2006	Sep 18, 2012
101	Kebo Oil & Gas, Inc.	16	16	0	12	Dec 23, 1994	May 31, 2024
102	Sun Exploration & Production Co.	16	16	0	5	Jun 7, 1977	Feb 27, 1981
103	Vastar Resources, Inc.	16	16	0	3	Aug 12, 1994	Dec 6, 2000
104	Gonzalez, Elia G. Mineral Trust	16	16	0	2	Jul 23, 1991	Sep 5, 1996
105	Southwestern Energy Prod. Co.	16	16	0	2	Jan 13, 1998	Jul 31, 2006
106	Porter, H. J.	15	15	0	25	Aug 3, 1977	Jun 21, 1988
107	BP America Production Company	15	15	0	7	Jun 25, 2002	Apr 17, 2008
108	Texas Oil & Gas Corp.	15	15	0	3	Dec 21, 1977	Jun 26, 1981
109	El Campo Operating, LLC	15	15	0	0	Nov 15, 2002	Aug 9, 2004
110	Miller, Zella Foster	15	15	0	0	Mar 8, 1990	Apr 5, 1990
111	Bridwell Oil Co.	14	14	0	37	Dec 20, 1978	Jul 1, 2024
112	Kibbe, R. E.	14	14	0	12	Jul 20, 1979	Oct 17, 1990
113	Bayside Petroleum Corp.	14	14	0	10	Aug 18, 1977	Jun 25, 1982
114	Hanson Minerals Co.	14	14	0	7	Jul 14, 1982	Feb 24, 1992
115	Camden Resources, Inc.	14	14	0	5	Jun 1, 2000	Mar 14, 2006
116	Inland Ocean, Inc.	14	14	0	5	Jan 24, 1978	Sep 10, 2014
117	Comstock Oil & Gas, LP	14	14	0	4	Oct 17, 2006	Oct 10, 2013
118	McGuffin, Joe S. Inc.	14	14	0	3	Jun 25, 1982	May 6, 1988
119	Merit Energy Company	14	14	0	1	Dec 29, 1993	Jul 2, 2002
120	Voyager Gas Corporation	14	14	0	1	Mar 13, 2007	Sep 1, 2011
121	Hopehill Petroleum Co., Inc.	13	13	0	6	Nov 6, 1980	Dec 21, 1984
122	Cox, Edwin L. & Hamon, Jake L.	13	13	0	1	Jan 17, 1978	Dec 18, 1985
123	Hada, J. L., Jr.	13	13	0	1	Dec 10, 1986	May 20, 1993
124	Tejano Development Co., Inc.	13	13	0	0	Nov 15, 1977	Jul 14, 1978
125	Miller, M. M. & Sons	12	12	0	18	Jan 5, 1979	Oct 29, 2003
126	Dynamic Production, Inc.	12	12	0	9	Aug 7, 2006	Jun 29, 2015
127	Ultra Oil & Gas, Inc.	12	12	0	7	May 1, 1996	Feb 16, 2006
128	Jay-Dee Operating Company	12	12	0	2	Nov 15, 1979	Mar 15, 1984
129	Enron Oil & Gas Company	12	12	0	1	Mar 12, 1990	Dec 29, 1998
130	Rio-Tex, Inc.	12	12	0	1	Jun 17, 1986	Aug 18, 2015
131	Dominion Oklahoma Texas E&P, Inc	12	12	0	0	Sep 21, 2001	Jul 9, 2007
132	Hunter & Hada	12	12	0	0	Aug 24, 1988	Sep 12, 1991
133	Reichmann Petroleum Corp.	12	12	1	0	Mar 7, 2005	Oct 17, 2006
134	Stinger Oil & Gas Inc.	12	12	0	0	Dec 6, 1991	Sep 1, 1995
135	Texas Southern Petroleum Corp.	11	11	0	31	Dec 11, 1989	Aug 25, 2026
136	Kaye Poth Oil Corp.	11	11	0	20	Dec 31, 1981	Oct 23, 1992
137	Cox, Edwin L.	11	11	0	6	Jun 8, 1977	Mar 24, 1980
138	Hunter Petroleum Inc.	11	11	0	5	Feb 9, 1987	Nov 30, 2006
139	Vintage Petroleum, Inc.	11	11	0	4	Aug 12, 1987	Dec 8, 1999
140	XOG Operating LLC	11	11	0	4	Jul 20, 2010	Dec 17, 2014
141	Cotton, W. L.	11	11	0	2	Oct 25, 1978	Feb 15, 1995
142	Esenjay Operating, Inc.	11	11	0	2	Mar 10, 2009	Jul 21, 2014
143	Double Play Oil & Gas, Inc	11	11	0	1	Jul 24, 2003	Oct 21, 2019
144	Gierhart, Inc./Southern Resource	11	11	0	1	Oct 2, 1984	Aug 23, 1985
145	McGowan Working Partners	11	11	0	0	Mar 23, 1992	Dec 31, 1992
146	Richman Petroleum Corp.	11	11	0	0	May 15, 2003	Jan 27, 2005
147	Chaparosa Production Company,inc	10	10	0	27	Jan 19, 1984	Feb 5, 1992
148	Prime Operating Company	10	10	0	23	Aug 26, 1996	Oct 30, 2014
149	Coastal Oil & Gas Corporation	10	10	0	7	May 12, 1981	Jan 10, 2001
150	Sandalwood Exploration, L.P.	10	10	0	3	Oct 15, 2013	Aug 31, 2020
151	Royal Oil & Gas Corp.	10	10	0	1	Apr 1, 1980	Feb 3, 1994
152	Everest Exploration Co.	10	10	0	0	Aug 23, 1978	Feb 7, 1980
153	SV Energy Company, LLC	10	10	0	0	Apr 16, 2012	Dec 4, 2014
154	Tana Oil and Gas Corporation	10	10	0	0	Jun 11, 1990	Jan 8, 1997
155	Tepee Petroleum Co., Inc.	9	9	0	5	Apr 9, 2004	Dec 17, 2007
156	Sol Energy, Inc.	9	9	0	3	Jan 31, 1983	Aug 1, 1986
157	Terra Resources, Inc.	9	9	0	3	Jul 21, 1980	Jun 13, 1988
158	Ellsworth, H. P. O&G Properties	9	9	0	2	Nov 1, 1989	Mar 24, 2014
159	Sendero Energy Inc.	9	9	0	1	May 22, 2002	Dec 30, 2009
160	Centurion Energy Resou. & Op. Co	9	9	0	0	Oct 27, 1977	Jun 2, 1980
161	Frio Production Co.	9	9	0	0	Aug 8, 1990	Nov 20, 1991
162	Gco Mineral Company	9	9	0	0	Oct 29, 1981	Oct 29, 1981
163	Cox Oil & Gas, Inc.	8	8	0	195	Mar 25, 1987	Oct 14, 1991
164	Petroleum Corporation of Texas	8	8	0	16	Feb 7, 1978	Jan 20, 1982
165	Brigham Oil & Gas, L.P.	8	8	0	7	Sep 30, 1997	Nov 3, 2000
166	Carrizo Oil & Gas, Inc.	8	8	0	6	May 8, 1998	Aug 3, 2007
167	Kosarek, Charlie	8	8	0	4	Jul 21, 1993	Aug 7, 2001
168	BNP Petroleum Corporation	8	8	0	3	Oct 12, 1994	May 25, 2001
169	Energy Development Corp.	8	8	0	3	Mar 11, 1988	Sep 21, 1990
170	Central Energy Producing Company	8	8	0	2	Feb 22, 1989	Jun 24, 1994
171	Cimarron Engineering Corp.	8	8	0	2	Jan 12, 1990	Mar 3, 2014
172	Cox & Perkins Exploration, Inc.	8	8	0	2	Dec 10, 1987	May 2, 1990
173	Messers, the Co. Inc.	8	8	0	1	Nov 1, 1977	Jun 10, 1983
174	King Operating Corporation	8	8	0	0	Jul 1, 2016	Jul 28, 2016
175	Mueller, Joseph P.	8	8	0	0	Jul 15, 1977	Nov 22, 1978
176	Sierra Production Co.	8	8	0	0	Jun 28, 1984	Nov 19, 1985
177	Southern Resource Company	8	8	0	0	May 15, 1984	Dec 29, 1992
178	Texas Eastern Hydrocarbon Co.	8	8	0	0	Aug 10, 1984	May 21, 1985
179	Reserve Operating Corp.	7	7	0	20	Aug 15, 1994	Jun 2, 2006
180	D.Y. Exploration, Inc.	7	7	0	10	Jan 21, 2000	Jan 28, 2010
181	Ladd Petroleum Corp.	7	7	0	9	Mar 31, 1982	May 27, 1987
182	M. J. G., Inc.	7	7	0	7	Mar 9, 1984	Aug 7, 2003
183	Carter Exploration Company	7	7	0	5	Jul 18, 1977	Dec 23, 1987
184	Speed, F. Michael, Trustee	7	7	0	3	Jul 16, 1991	Jun 2, 1998
185	Adelita Oil & Gas Co.	7	7	0	2	May 15, 1979	Apr 3, 1980
186	Corpus Christi Brine Serv., LP	7	7	0	2	Aug 15, 1995	Jun 11, 2020
187	Gierhart, B. J. Inc.	7	7	0	2	Apr 24, 1981	Mar 21, 1988
188	Tana Oil & Gas Corporation	7	7	0	2	Dec 8, 1986	Mar 9, 1990
189	Peoples Energy Prod.-TX, L.P.	7	7	0	1	Jun 13, 2003	Mar 6, 2007
190	Rosenthal, Stanley H.	7	7	0	1	Aug 11, 1983	Apr 25, 1985
191	Williams, Clayton Energy, Inc.	7	7	0	1	Nov 17, 1993	Oct 10, 2000
192	Black Gold Operating Co., Inc.	7	7	0	0	Nov 29, 1983	Jun 6, 1989
193	Cliffwood Production Co.	7	7	0	0	Apr 13, 2000	Dec 27, 2000
194	El Paso Production Oil & Gas Co.	7	7	0	0	Oct 27, 2000	Mar 10, 2004
195	Energy Investments, Inc.	7	7	0	0	Apr 4, 1978	Aug 21, 1978
196	Enterprise Products Operatingllc	7	7	0	0	May 5, 2008	Jul 18, 2023
197	Glacier Energy, Inc.	7	7	0	0	Mar 29, 1984	Mar 12, 1986
198	McAnear, John S.	7	7	0	0	Apr 19, 1983	Feb 29, 1984
199	Riddle Oil Company	7	7	0	0	Jun 22, 1977	Jul 30, 1979
200	Santa FE Energy Oper. Part., LP	7	7	0	0	Jan 16, 1987	Dec 16, 1991
201	Santos USA Corp.	7	7	0	0	Sep 16, 1999	Apr 16, 2003
202	Sequoia Management, LLC	7	7	0	0	Apr 18, 2007	Aug 10, 2007
203	Texas Eastern Exploration Co.	7	7	0	0	Sep 22, 1982	May 21, 1984
204	Lorac, Inc.	6	6	0	36	May 22, 1987	Mar 8, 2014
205	Taurus Minerals, Inc.	6	6	0	30	Feb 6, 1992	Nov 4, 2002
206	Perlman, William	6	6	0	12	Jun 11, 1979	Aug 13, 1984
207	Phillip, David Martin	6	6	0	7	Dec 21, 1978	Jul 5, 1983
208	Ccgm Exploration & Prod.,l.c.	6	6	0	5	May 26, 1998	Jan 6, 2011
209	Garcia, A. H.	6	6	0	5	Oct 22, 1985	Nov 18, 1991
210	Newfield Exploration Company	6	6	0	5	Jul 3, 2001	Sep 9, 2009
211	Brayton Oil Corp.	6	6	0	4	Nov 7, 1989	Oct 14, 1991
212	Saxum Oil & Gas, LLC	6	6	0	4	Dec 13, 2012	Apr 1, 2014
213	Killam & Hurd, Ltd.	6	6	0	3	Oct 31, 1977	Oct 23, 1980
214	Texas Coastal Exploration, Inc.	6	6	0	3	Aug 1, 1986	Mar 7, 1988
215	Wagner & Brown, Ltd.	6	6	0	3	Feb 3, 1994	Mar 25, 2003
216	Braman, D. H., Jr.	6	6	0	2	Nov 5, 1979	Mar 26, 1985
217	Bridge Oil Company, L. P.	6	6	0	2	Oct 31, 1991	May 13, 1994
218	Harper Hefte, Inc.	6	6	0	2	May 17, 1994	Sep 26, 2012
219	Plantation Operating Co., Inc.	6	6	0	2	Jan 8, 1987	Jan 8, 1987
220	Cambridge Oil Company	6	6	0	1	Sep 15, 1986	Sep 30, 1987
221	Gasper Rice Resources, Ltd.	6	6	0	1	Sep 3, 2009	Feb 24, 2017
222	Mott Petroleum Corporation	6	6	0	1	Dec 2, 1987	Aug 10, 1989
223	Nye Exploration & Prod, L.L.C.	6	6	0	1	Dec 6, 2017	Nov 30, 2021
224	Oil Property Management Company	6	6	0	1	Dec 4, 1985	Jul 29, 1987
225	Tampa Cove Investments, Inc.	6	6	0	1	Oct 25, 1978	Jan 7, 1980
226	Allied Production Corp.	6	6	0	0	Oct 15, 1980	Dec 3, 1982
227	Black Gold Development	6	6	0	0	Mar 24, 1983	May 18, 1983
228	Coronado Energy E&P Company, LLC	6	6	0	0	Nov 26, 2007	Jul 30, 2008
229	Douglas Petroleum, Inc.	6	6	0	0	Dec 17, 1979	Feb 20, 1985
230	Enerquest Operating L.L.C.	6	6	0	0	May 16, 2013	Aug 30, 2017
231	Mark IV Energy	6	6	0	0	Dec 5, 1978	Jul 8, 1992
232	Price Drilling & Exploration Co.	6	6	0	0	Aug 6, 1985	May 17, 2002
233	Pride Exploration, Inc.	6	6	0	0	Jul 12, 1988	Sep 3, 1993
234	Sanders, Howard Kenneth	6	6	0	0	Jul 29, 1980	Dec 1, 1981
235	Shor Operating LLC	6	6	0	0	Apr 11, 2022	Mar 16, 2023
236	TXO Minerals, Inc.	6	6	0	0	Apr 2, 1980	Jun 24, 1983
237	TX Petroleum Company	6	6	0	0	Oct 7, 1981	Sep 12, 1986
238	Neddco Lease Serv Inc.	5	5	0	42	Mar 6, 1979	Jan 24, 1983
239	Killam Oil Company	5	5	0	32	Aug 5, 1985	May 28, 1987
240	Production Resources, Inc.	5	5	0	31	Sep 9, 2019	Jan 15, 2020
241	B.P. Productions Inc.	5	5	0	15	May 13, 2003	Sep 14, 2007
242	Forbes, C. C. Company	5	5	0	12	Dec 3, 1987	Mar 14, 1994
243	Weaver, W. Carlton	5	5	0	7	Sep 5, 1978	Aug 20, 1985
244	Phillips Petroleum Company	5	5	0	5	Aug 10, 1989	Jul 13, 1995
245	Texaco E & P Inc.	5	5	0	5	Oct 31, 1994	Jul 12, 2000
246	Genesis Producing Company	5	5	0	3	Sep 16, 1987	May 19, 1989
247	San Isidro Development Co, L. C.	5	5	0	3	Apr 11, 2007	Feb 3, 2017
248	Baxter, Murphy H.	5	5	0	2	Sep 10, 1981	Aug 14, 1989
249	Cimarron Engineering, LLC	5	5	0	2	Dec 31, 2014	Jun 29, 2026
250	Laroca Resources, Ltd	5	5	0	2	Nov 19, 1996	Jun 6, 1997
251	Robison, J. H. & Assoc. Ltd.	5	5	0	2	Dec 31, 1981	Dec 7, 1983
252	Sexton Oil & Minerals Corp.	5	5	0	2	Jan 21, 1980	Jan 21, 1988
253	Texco Operating Co.	5	5	0	2	Jan 15, 1993	Apr 16, 1993
254	Dreyfus, Louis Natural Gas Corp	5	5	0	1	Sep 29, 1994	Nov 14, 2001
255	Howard, Douglas J.	5	5	0	1	Dec 31, 1981	Mar 29, 1984
256	Howard Exploration, Inc.	5	5	0	1	Sep 23, 1987	Mar 4, 2003
257	Kelley Production Company	5	5	0	1	Apr 18, 1979	Aug 12, 1983
258	Petroward Corporation	5	5	0	1	Jun 24, 1987	Jun 14, 1989
259	Risa Energy Corporation	5	5	0	1	Jul 8, 1981	Jan 6, 1987
260	Abraxas Petroleum Corp.	5	5	0	0	Aug 14, 1984	Jan 23, 1985
261	Bourne Oil Co.	5	5	0	0	Mar 12, 1979	Aug 31, 1982
262	Harmon Oil Co.	5	5	0	0	Mar 11, 1980	Apr 29, 1983
263	K M & D Energy	5	5	0	0	Dec 19, 1983	Sep 5, 1984
264	L & M Producers	5	5	0	0	Jul 31, 1979	Apr 7, 1981
265	Marco Polo Exploration, Inc.	5	5	0	0	Jul 23, 1990	Jun 20, 1991
266	Miller, W.C. & West, Thomas S Jr	5	5	0	0	Jul 7, 1983	Jan 12, 1984
267	Mineral Projects Inc.	5	5	0	0	Jun 3, 1983	Aug 28, 1985
268	Omega Minerals, Inc.	5	5	0	0	Jul 7, 1977	Nov 15, 1979
269	Petro-Cap, Inc.	5	5	0	0	Jun 27, 1980	Jun 27, 1980
270	Tschoepe, Arthur J.	5	5	0	0	Feb 12, 1982	Oct 23, 1990
271	Uvalde Energy Co.	5	5	0	0	Jan 14, 1994	Sep 26, 1994
272	Varn Petroleum Co.	5	5	0	0	Apr 18, 1978	Jul 14, 1981
273	Versa Energy Corporation	5	5	0	0	Dec 4, 1984	Jan 20, 1986
274	Wild Hog Exploration LLC	5	5	0	0	Oct 8, 2014	Jul 8, 2016
275	Duval County Ranch Co.	4	4	0	43	May 4, 1978	Oct 13, 1982
276	Texas, Les & Co.	4	4	0	18	Jan 17, 2018	Nov 28, 2018
277	HNG Oil Company	4	4	0	17	Feb 29, 1980	Nov 26, 1984
278	McGuffin, Joe Jr.	4	4	0	15	May 17, 1993	Sep 16, 1999
279	High Sierra Operating, Ltd.	4	4	0	9	Feb 24, 1993	Aug 24, 1993
280	Expando Production Company	4	4	0	7	Aug 7, 1978	Apr 25, 1980
281	Carr, F. William	4	4	0	6	Jan 30, 1978	Mar 13, 1984
282	Perez, H. F.	4	4	0	4	Mar 17, 1978	Jul 15, 1980
283	Fortress Minerals, Inc.	4	4	0	3	Mar 21, 1989	Apr 3, 1989
284	Teal Petroleum Company	4	4	0	3	Aug 12, 1977	Jul 10, 1978
285	KP Exploration, Inc.	4	4	0	2	Feb 12, 1981	Oct 25, 1983
286	Petroleum Management, Inc.	4	4	0	2	Sep 14, 1978	Sep 14, 1989
287	Pintex Operating Inc.	4	4	0	2	Oct 14, 1986	Jul 15, 1994
288	Tepco Engineering, Inc.	4	4	0	2	Jul 13, 1977	Dec 27, 1978
289	Union Texas Petroleum Corp.	4	4	0	2	Dec 21, 1984	Jul 10, 1987
290	American Energy Partners, Inc.	4	4	0	1	Feb 10, 2007	Nov 4, 2010
291	Bass Enterprises Production Co.	4	4	0	1	Oct 1, 1984	Mar 9, 1989
292	Bell, Kelly	4	4	0	1	Nov 22, 1977	May 10, 1978
293	Cabot Oil & Gas Corporation	4	4	0	1	Dec 5, 1997	Nov 1, 2006
294	Ceniza Petroleum, Inc.	4	4	0	1	Jun 19, 1992	Sep 26, 2000
295	Denali Oil & Gas Management, LLC	4	4	0	1	Jun 9, 2005	Jul 3, 2006
296	Hamilton Brothers Oil Co.	4	4	0	1	Oct 2, 1980	Feb 11, 1982
297	Harwood Exploration, Inc.	4	4	0	1	Jun 15, 1983	Dec 13, 1983
298	Lomak Production Company	4	4	0	1	Feb 16, 1995	Aug 12, 1998
299	Manley, John D. III	4	4	0	1	Jul 11, 1977	Mar 11, 1988
300	Nordan Trust, The	4	4	0	1	Apr 20, 1981	Dec 22, 1992

1,381 OPERATORS · THE 300 MOST ACTIVE SHOWN · WINDOW ON THE RRC ISSUE DATE