COUNTIES · ATASCOSA · OPERATORS

Atascosa 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.

#OperatorPermitsAll timeHorizontalWellsFirstLast
1EOG Resources, Inc.122619122449Feb 20, 2024Sep 23, 2026
2Marathon Oil EF LLC5864058483Jan 24, 2024May 6, 2026
3Javelin Energy Partners Mgmt LLC144514184Jan 31, 2025Jul 31, 2026
4XTO Energy Inc.91399100Apr 11, 2024Apr 11, 2024
5Trailblazer Energy Resources,llc88888Jul 21, 2026Aug 4, 2026
6Pillar Efs, LLC84582Jan 18, 2024Nov 7, 2025
7Alvarado 2014 LLC7875Mar 8, 2024Jul 13, 2026
8Texas American Resources Company552572Jan 18, 2024Dec 13, 2024
9Rosewood Resources, Inc.4444Aug 5, 2025Aug 13, 2025
10Verdun Oil & Gas LLC35325Dec 28, 2023Dec 28, 2023
11Trinity Operating (Usg), LLC326311Feb 20, 2024Feb 20, 2024
12Field Petroleum Corp.2224Oct 20, 2025Oct 19, 2026
13Tidal Petroleum, Inc.2422Apr 18, 2024Apr 18, 2024
14Silverbow Resources Oper, LLC21020Jan 6, 2025Jan 6, 2025
15BB-Southtex, LLC2220Dec 6, 2023Feb 21, 2024
16Pressly Oil Interest, Inc.16018Jul 11, 2024Jul 11, 2024
17Rickaway Energy, Corp.14016Aug 18, 2025Aug 18, 2025
18Atlas Operating LLC11014Dec 27, 2024Dec 27, 2024
19Sage Geosystems Inc.1101Sep 12, 2024Sep 12, 2024
20Alamo Environmental, Inc.1100Nov 18, 2024Nov 18, 2024
21Zoom Inc.—00363——
22Great Plains Resources Inc.—00211——
23Petrosaurus Inc.—00184——
24Wen-BE—70161——
25Murphy Expl. & Prod. Co. - USA—1660112——
26Mazco Energy LLC—0097——
27Phoenix Oil & Gas, Inc. (A)—151089——
28EL Dorado Oil & Gas Inc.—238082——
29Exxon Corp.—84082——
30Roland Oil Company—0082——
31Ginco Operating Co.—1072——
32Texas Empire Petroleum Corp.—1065——
33Hunters Creek Oil & Gas—0058——
34Humble Oil & Refining Co.—0056——
35Crescent Energy Operating LLC—0053——
36Calfas Oil LLC—0046——
37Starburst Energy Inc.—0046——
38Koko Skadi LLC—0045——
39Aaronmark Services LLC—0043——
40Mobil Producing TX. & N.M. Inc.—38042——
41Sahara Oil and Gas, Inc.—45041——
42Brymer Contracting Incorporated—1041——
43Production Resources Inc.—0040——
44Petro Lions, LLC—1038——
45Aminex USA Inc.—0038——
46Dorchester Operating Company LLC—0038——
47Caja Production Corp.—1035——
48Rampage Exploration Inc.—0034——
49Pearl, Bill H. Productions, Inc.—4031——
50LP Operating LLC—0030——
51Rainer Energy, Inc.—8028——
52Eagle Ford Oil Co. Inc.—0028——
53Benson, W. R.—72024——
54Campbell, L. W.—41024——
553-L Drilling—0024——
56Guinn Operating Company, LLC—4023——
57Travelers Oil & Gas Inc.—0023——
58Far, Inc.—58022——
59Valence Operating Company—38021——
60Seeker Oil Company, Incorporated—6021——
61Spiller, Robert S.—80020——
62Grande Operating & Expl. Company—5020——
63Atasco, Inc.—92019——
64U. D. Man Inc.—0019——
65Prospectors Ltd., The—27018——
66Moxy Oil Company—0018——
67Bailey, L. J.—21017——
68Calk Oil Company—0017——
69Caltex Energy Co.—0017——
70J.P. Oil Company Inc.—0017——
71LPG Energy Company—0017——
72WJC, Inc.—20016——
73Drachen Oil Company—0016——
74Exoco Energy Corp.—0016——
75Mid-Texas Resources, Inc.—42015——
76Ineos USA Oil & Gas LLC—0015——
77Petroleum Oilfield Services Inc.—0015——
78Quintanilla Tony C.—0015——
79Oilex Int L Investments Inc.—0014——
80Tomahawk Petroleum—0014——
81Pullin Lease Service, Inc.—17013——
82Britanco, L.L.C.—1013——
83Capital Star Oil & Gas Inc.—0013——
84Creative Oil and Gas OP II LLC—0013——
85Mojave Resources LLC—0013——
86Watson Energy Investments LLC—0013——
87Virtex Operating Company, Inc.—26012——
88Freeman J. L. Oper.—0012——
89Acorn Oil & Gas LLC—0011——
90Longshot Energy LLC—0010——
91Salvor Petroleum—0010——
92Cude, James W. Oil—9309——
93Santex Energy Inc.—9309——
94Texas American Oil Corp.—8009——
95Amoco Production Company—1609——
96Karnei, Harlan—1209——
97Somerset Insulation Inc.—909——
98Caltate Energy Corp.—209——
99Bayport Operating Inc.—009——
100Black Jack Services L.L.C.—009——
101Calk Roger D.—009——
102Paisano Production Inc.—009——
103Enserch Exploration, Inc—4908——
104Cromoco, Inc.—4408——
105Seagull Operating Co. Inc.—3608——
106Miller, W. C. Operating Company—1308——
107Tejas Petroleum Corporation—808——
108Arben Oil Inc.—008——
109Calame Richard—008——
110Coleshire Oil & Gas Co. Inc.—008——
111DKW Energy Inc.—008——
112Exxcel Operating Company—008——
113Strata Star Petroleum Corp.—008——
114Flori-Tex Energy Corp.—3307——
115Chevron U. S. A. Inc.—2107——
116Bay Rock Operating Company—1107——
117Alco Oil Company—1007——
118Durango Production Company, Inc.—307——
119Guinn Operating Company—207——
120Core E & P Corp.—007——
121Delong Horace—007——
122Eise Oil Inc.—007——
123HD Oil Company—007——
124Kentex Petroleum Inc.—007——
125Medallion Oil Company—007——
126NXS Oilfield Services LLC—007——
127Balcones Oil Co., Inc.—606——
128RMF Investments, Inc.—606——
129Mercury Exploration Co.—306——
130Lancelot Operations, Inc.—206——
131Rosner, S.—106——
132Allen & Shumate Inc.—006——
133Deason Oil & Gas Interests—006——
134Five Star Operating Company—006——
135K C Petroleum Inc.—006——
136Ohlhausen Petroleum Company—006——
137Petro-Ops LLC—006——
138Premier Technology Inc.—006——
139Verdun Oil EF II LLC—006——
140H. & J. Drilling Company—2605——
141Pedeco, Inc.—2505——
142Excalibur E & P, LLC—1605——
143Gulf Oil Corp.—1605——
144Newfield Exploration Company—1405——
145K2 Petroleum, Inc.—705——
146Amal Oil Co, Inc.—605——
147Beta Oil Corporation—605——
148Grindl, Anthony R.—605——
149Ampak Oil Company—405——
150Bristol Oil & Gas Corporation—105——
151Kemco Oil—105——
1523 W Investments LLC—005——
153American Eagle Resources Inc.—005——
154Bigfoot Oil LLC—005——
155Buccaneer Operating LLC—005——
156Gulfstar Properties Inc.—005——
157McDonald Burt—005——
158M & C Operating LLC—005——
159More Texas Oil—005——
160Neumann Oil Company—005——
161Ortiz Jose & Sons—005——
162Shell Oil Company—005——
163Thorne, James R.—3804——
164Burk Royalty Company—2104——
165Fossil Exploration, Inc.—1904——
166G. R. C. Production Company—1504——
167Rio Exploration Company—804——
168Ulcak, Charles L.—504——
169Regency Energy, Inc.—404——
170Lucros International Corporation—204——
171Milestone Enviro Services, LLC—204——
172Mobil Oil Corporation—204——
173Serra Energy, Inc.—104——
174South Texas Oilfield Sol, LLC—104——
175Arcana Operating Co. Inc.—004——
176Arnold Petroleum Inc.—004——
177Brymer Jack Contr. Serv.—004——
178Calk Operating LLC—004——
179Cottonwood Energy Dev. Corp.—004——
180Foursquare Operations—004——
181Geo Western Inc.—004——
182Gulftex Operating Company Inc.—004——
183Landor Oil Co.—004——
184L & L Investments—004——
185LMB Oil Company Inc—004——
186Merica Oil Operating Company LLC—004——
187North American Production Co.—004——
188Red Chalk Resources LLC—004——
189Thomas Exploration & Devel. Inc—004——
190Vanguard Operating LLC—004——
191Vargas Oil & Gas—004——
192Kimberjay Oil & Gas Company—3303——
193Catlett, E. G.—1603——
194Parker, G.R. Company, Inc—1503——
195Staccatto Energy Corporation—1503——
196Dorris Petroleum, Inc.—903——
197Arco Oil & Gas Co.—803——
198Delta Exploration Company, Inc.—803——
199Hughes & Hughes—803——
200Hughes, Dan A. Company—603——
201Mid-Continental Petroleum, Inc.—603——
202Carr, F. William—503——
203Emerson Oil Company—503——
204Stokes, O. K.—403——
205Mosbacher Energy Company—303——
206Somex Energy Company—303——
207Bledsoe, R.K. Trust Oil Operator—203——
208Cude Petroleum, Inc.—203——
209Eex Operating, L.P.—203——
210Murmak Oil Company—203——
211Santa FE - Windsor Producing Co.—203——
212J & L Resources, Inc.—103——
213Johnson, C. D.—103——
214Leede Oil & Gas Inc.—103——
215Ralyn Corp.—103——
216SNG Operating, LLC—103——
217Abraxas Production Corporation—003——
218Andrews & Corkran L.L.C.—003——
219Avighna Energy Inc—003——
220Bar V Energy LLC—003——
221Calfas Cattle & Oil LLC—003——
222Crystal Resources Inc—003——
223Doran W. H. Jr.—003——
224Duncan Production—003——
225Flat Top Operating LLC—003——
226Gain Energy Inc.—003——
227Global Training Academy Inc.—003——
228Horn Drilling Company—003——
229H & T Oil & Gas Company Inc.—003——
230Jamco Oil—003——
231JPW Energy L.L.C.—003——
232Jwo Energy LLC—003——
233Lone Star Prod. Co.—003——
234Maverick Energy Group Inc.—003——
235Mssk Consulting LLC—003——
236Neese Ivel A.—003——
237Oil Country Corporation—003——
238Ragars Oil & Gas Co.—003——
239Repsol Oil & Gas USA LLC—003——
240R W Ranch—003——
241Southwest Loop 1604 Ltd.—003——
242Strahan J. A.—003——
243Tipco—003——
244Triple S Energy—003——
245United Production Co. Inc.—003——
246Weeks C. W.—003——
247WSM—003——
248Kelpetro, Inc.—2202——
249Pioneer Natural Res. USA, Inc.—1902——
250Comstock Oil & Gas, LP—1302——
251Atascosa Exploration, LLC—1202——
252Explorer Energy Corp.—802——
253J. D. Production—802——
254Rio-Tex, Inc.—802——
255Dewbre Petroleum Corporation—702——
256Chaparral Natural Resources,inc.—602——
257Mosbacher Production Co.—602——
258Huntington Energy, L.L.C.—502——
259Associated Services, Inc.—302——
260Bass Enterprises Production Co.—302——
261Peninsula Resources Corp.—302——
262STX—302——
263Anacacho Energy Company—202——
264Del Petroleum Corporation—202——
265Jjrs Investments Inc.—202——
266Palmco Management Co.—202——
267Texas Royalty Corp.—202——
268Whitewater Resources LLC—202——
269Eagle Rock Operating Company,llc—102——
270Propet Oil & Gas Inc.—102——
271Tenneco Oil Co.—102——
272Texas Secondary Oil Corporation—102——
2733-G Operating Company—002——
274Atlantic Richfield Co.—002——
275Azx Petroleum—002——
276B-F Service Company—002——
277Blackjack Operating L. L. C.—002——
278Bluco Production Co. Inc.—002——
279Blue Quail Oil Co.—002——
280Cal Oil Company—002——
281Centex Development—002——
282Comanche Well Service Corp.—002——
283Cushman Richard S.—002——
284Espey Silica Sand Company—002——
285Essex & Armstrong—002——
286Green Star—002——
287HRH Operating Account—002——
288Jenex Petroleum Corporation—002——
289Lynch W. Waldo—002——
290Magnolia Oil & Gas Operating LLC—002——
291Matrix Energy Inc.—002——
292McDay Energy Corp.—002——
293Momentum Oil & Gas LLC—002——
294National Petroleum Co.—002——
295Nutek Oil Inc—002——
296Parker George Estate—002——
297Pathfinder Petroleum Inc.—002——
298Phoenix Operating Co.—002——
299Serita Oil Company—002——
300Sharon Hunter Resources Inc.—002——

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