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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.

1 year3 years10 yearsAll time
#OperatorPermitsAll timeHorizontalWellsFirstLast
1Marathon Oil EF LLC329640329483Nov 8, 2016May 6, 2026
2EOG Resources, Inc.257619257449Dec 21, 2016Sep 23, 2026
3XTO Energy Inc.9013990100Jun 2, 2017Apr 11, 2024
4Texas American Resources Company52525272Jan 19, 2017Dec 13, 2024
5Arrow S Energy Operating, LLC4646441Aug 19, 2022Aug 7, 2023
6Javelin Energy Partners Mgmt LLC454545184May 20, 2021Jul 31, 2026
7Pillar Efs, LLC4545452Apr 14, 2021Nov 7, 2025
8Carrizo (Eagle Ford) LLC3357330Feb 24, 2017Oct 26, 2018
9Cinco Oil & Gas, LLC2935290Feb 14, 2017Nov 5, 2019
10Venado Operating Company LLC2828281Jul 13, 2018Jun 15, 2021
11Trinity Operating (Usg), LLC26262611Jan 13, 2023Feb 20, 2024
12Valence Operating Company25382421Jul 6, 2017Sep 25, 2023
13Atlas Eagle Ford Oper Co, LLC1561150Dec 8, 2016Feb 15, 2018
14Murphy Expl. & Prod. Co. - USA1216612112Mar 14, 2019Jun 17, 2019
15Sea Eagle Ford, LLC1213120Jan 4, 2017Jul 12, 2019
16Petroedge Operating IV LLC1212120Apr 26, 2017Nov 20, 2019
17Teal Operating, LLC1212120Jun 26, 2017Mar 19, 2020
18Silverbow Resources Oper, LLC1010100Sep 27, 2022Jan 6, 2025
19Trailblazer Energy Resources,llc88888Jul 21, 2026Aug 4, 2026
20Alvarado 2014 LLC8885Aug 11, 2023Jul 13, 2026
21Protege Energy III LLC8881Mar 15, 2022May 9, 2023
22Matador Production Company7970Oct 1, 2018Oct 1, 2018
23Cheyenne Petroleum Company7770Jun 7, 2019Aug 5, 2019
24Pressly Oil Interest, Inc.66018Feb 23, 2018Jul 11, 2024
25Verdun Oil & Gas LLC55525Jan 27, 2023Dec 28, 2023
26Virtex Operating Company, Inc.426012Oct 18, 2017Mar 24, 2022
27Rosewood Resources, Inc.4444Aug 5, 2025Aug 13, 2025
28EP Energy E&P Company, L.P.41040Jul 13, 2018Jul 17, 2018
29Callon (Eagle Ford) LLC4440May 16, 2023May 19, 2023
30Rickaway Energy, Corp.34016Oct 11, 2023Aug 18, 2025
31Goodnight Midstream Permian, LLC3301Jun 26, 2017Oct 3, 2018
32Guinn Operating Company, LLC24023Apr 20, 2017Aug 22, 2019
33Field Petroleum Corp.2224Oct 20, 2025Oct 19, 2026
34Milestone Enviro Services, LLC2204Apr 7, 2017May 3, 2021
35Tidal Petroleum, Inc.2422Apr 18, 2024Apr 18, 2024
36Finger Oil & Gas, Inc.2501Oct 5, 2018Jan 31, 2019
37Cabot Oil & Gas Corporation213720Nov 14, 2016Nov 14, 2016
38Activa Resources, LLC2320Jul 19, 2021Jan 31, 2022
39Enervest Operating, L.L.C.2320Jun 9, 2017Jun 9, 2017
40BB-Southtex, LLC2220Dec 6, 2023Feb 21, 2024
41Atlas Operating LLC11014Dec 27, 2024Dec 27, 2024
42Britanco, L.L.C.11013Apr 15, 2020Apr 15, 2020
43South Texas Oilfield Sol, LLC1104Jan 28, 2019Jan 28, 2019
44Abraxas Petroleum Corporation14211Apr 5, 2017Apr 5, 2017
45Viceroy Petroleum, LP1201Jun 1, 2017Jun 1, 2017
46Sage Geosystems Inc.1101Sep 12, 2024Sep 12, 2024
47Alamo Environmental, Inc.1100Nov 18, 2024Nov 18, 2024
48Blackbrush O & G, LLC1110Feb 22, 2022Feb 22, 2022
49Etc Field Services LLC1100Feb 17, 2017Feb 17, 2017
50Forza Operating, LLC1100Feb 7, 2022Feb 7, 2022
51Gulftex Energy IV, LP1110Oct 26, 2017Oct 26, 2017
52Nustar Logistics, L.P.1100Jun 11, 2018Jun 11, 2018
53Wtxr Operating (Texas), Inc.1100May 3, 2021May 3, 2021
54Zoom Inc.—00363——
55Great Plains Resources Inc.—00211——
56Petrosaurus Inc.—00184——
57Wen-BE—70161——
58Mazco Energy LLC—0097——
59Phoenix Oil & Gas, Inc. (A)—151089——
60EL Dorado Oil & Gas Inc.—238082——
61Exxon Corp.—84082——
62Roland Oil Company—0082——
63Ginco Operating Co.—1072——
64Texas Empire Petroleum Corp.—1065——
65Hunters Creek Oil & Gas—0058——
66Humble Oil & Refining Co.—0056——
67Crescent Energy Operating LLC—0053——
68Calfas Oil LLC—0046——
69Starburst Energy Inc.—0046——
70Koko Skadi LLC—0045——
71Aaronmark Services LLC—0043——
72Mobil Producing TX. & N.M. Inc.—38042——
73Sahara Oil and Gas, Inc.—45041——
74Brymer Contracting Incorporated—1041——
75Production Resources Inc.—0040——
76Petro Lions, LLC—1038——
77Aminex USA Inc.—0038——
78Dorchester Operating Company LLC—0038——
79Caja Production Corp.—1035——
80Rampage Exploration Inc.—0034——
81Pearl, Bill H. Productions, Inc.—4031——
82LP Operating LLC—0030——
83Rainer Energy, Inc.—8028——
84Eagle Ford Oil Co. Inc.—0028——
85Benson, W. R.—72024——
86Campbell, L. W.—41024——
873-L Drilling—0024——
88Travelers Oil & Gas Inc.—0023——
89Far, Inc.—58022——
90Seeker Oil Company, Incorporated—6021——
91Spiller, Robert S.—80020——
92Grande Operating & Expl. Company—5020——
93Atasco, Inc.—92019——
94U. D. Man Inc.—0019——
95Prospectors Ltd., The—27018——
96Moxy Oil Company—0018——
97Bailey, L. J.—21017——
98Calk Oil Company—0017——
99Caltex Energy Co.—0017——
100J.P. Oil Company Inc.—0017——
101LPG Energy Company—0017——
102WJC, Inc.—20016——
103Drachen Oil Company—0016——
104Exoco Energy Corp.—0016——
105Mid-Texas Resources, Inc.—42015——
106Ineos USA Oil & Gas LLC—0015——
107Petroleum Oilfield Services Inc.—0015——
108Quintanilla Tony C.—0015——
109Oilex Int L Investments Inc.—0014——
110Tomahawk Petroleum—0014——
111Pullin Lease Service, Inc.—17013——
112Capital Star Oil & Gas Inc.—0013——
113Creative Oil and Gas OP II LLC—0013——
114Mojave Resources LLC—0013——
115Watson Energy Investments LLC—0013——
116Freeman J. L. Oper.—0012——
117Acorn Oil & Gas LLC—0011——
118Longshot Energy LLC—0010——
119Salvor Petroleum—0010——
120Cude, James W. Oil—9309——
121Santex Energy Inc.—9309——
122Texas American Oil Corp.—8009——
123Amoco Production Company—1609——
124Karnei, Harlan—1209——
125Somerset Insulation Inc.—909——
126Caltate Energy Corp.—209——
127Bayport Operating Inc.—009——
128Black Jack Services L.L.C.—009——
129Calk Roger D.—009——
130Paisano Production Inc.—009——
131Enserch Exploration, Inc—4908——
132Cromoco, Inc.—4408——
133Seagull Operating Co. Inc.—3608——
134Miller, W. C. Operating Company—1308——
135Tejas Petroleum Corporation—808——
136Arben Oil Inc.—008——
137Calame Richard—008——
138Coleshire Oil & Gas Co. Inc.—008——
139DKW Energy Inc.—008——
140Exxcel Operating Company—008——
141Strata Star Petroleum Corp.—008——
142Flori-Tex Energy Corp.—3307——
143Chevron U. S. A. Inc.—2107——
144Bay Rock Operating Company—1107——
145Alco Oil Company—1007——
146Durango Production Company, Inc.—307——
147Guinn Operating Company—207——
148Core E & P Corp.—007——
149Delong Horace—007——
150Eise Oil Inc.—007——
151HD Oil Company—007——
152Kentex Petroleum Inc.—007——
153Medallion Oil Company—007——
154NXS Oilfield Services LLC—007——
155Balcones Oil Co., Inc.—606——
156RMF Investments, Inc.—606——
157Mercury Exploration Co.—306——
158Lancelot Operations, Inc.—206——
159Rosner, S.—106——
160Allen & Shumate Inc.—006——
161Deason Oil & Gas Interests—006——
162Five Star Operating Company—006——
163K C Petroleum Inc.—006——
164Ohlhausen Petroleum Company—006——
165Petro-Ops LLC—006——
166Premier Technology Inc.—006——
167Verdun Oil EF II LLC—006——
168H. & J. Drilling Company—2605——
169Pedeco, Inc.—2505——
170Excalibur E & P, LLC—1605——
171Gulf Oil Corp.—1605——
172Newfield Exploration Company—1405——
173K2 Petroleum, Inc.—705——
174Amal Oil Co, Inc.—605——
175Beta Oil Corporation—605——
176Grindl, Anthony R.—605——
177Ampak Oil Company—405——
178Bristol Oil & Gas Corporation—105——
179Kemco Oil—105——
1803 W Investments LLC—005——
181American Eagle Resources Inc.—005——
182Bigfoot Oil LLC—005——
183Buccaneer Operating LLC—005——
184Gulfstar Properties Inc.—005——
185McDonald Burt—005——
186M & C Operating LLC—005——
187More Texas Oil—005——
188Neumann Oil Company—005——
189Ortiz Jose & Sons—005——
190Shell Oil Company—005——
191Thorne, James R.—3804——
192Burk Royalty Company—2104——
193Fossil Exploration, Inc.—1904——
194G. R. C. Production Company—1504——
195Rio Exploration Company—804——
196Ulcak, Charles L.—504——
197Regency Energy, Inc.—404——
198Lucros International Corporation—204——
199Mobil Oil Corporation—204——
200Serra Energy, Inc.—104——
201Arcana Operating Co. Inc.—004——
202Arnold Petroleum Inc.—004——
203Brymer Jack Contr. Serv.—004——
204Calk Operating LLC—004——
205Cottonwood Energy Dev. Corp.—004——
206Foursquare Operations—004——
207Geo Western Inc.—004——
208Gulftex Operating Company Inc.—004——
209Landor Oil Co.—004——
210L & L Investments—004——
211LMB Oil Company Inc—004——
212Merica Oil Operating Company LLC—004——
213North American Production Co.—004——
214Red Chalk Resources LLC—004——
215Thomas Exploration & Devel. Inc—004——
216Vanguard Operating LLC—004——
217Vargas Oil & Gas—004——
218Kimberjay Oil & Gas Company—3303——
219Catlett, E. G.—1603——
220Parker, G.R. Company, Inc—1503——
221Staccatto Energy Corporation—1503——
222Dorris Petroleum, Inc.—903——
223Arco Oil & Gas Co.—803——
224Delta Exploration Company, Inc.—803——
225Hughes & Hughes—803——
226Hughes, Dan A. Company—603——
227Mid-Continental Petroleum, Inc.—603——
228Carr, F. William—503——
229Emerson Oil Company—503——
230Stokes, O. K.—403——
231Mosbacher Energy Company—303——
232Somex Energy Company—303——
233Bledsoe, R.K. Trust Oil Operator—203——
234Cude Petroleum, Inc.—203——
235Eex Operating, L.P.—203——
236Murmak Oil Company—203——
237Santa FE - Windsor Producing Co.—203——
238J & L Resources, Inc.—103——
239Johnson, C. D.—103——
240Leede Oil & Gas Inc.—103——
241Ralyn Corp.—103——
242SNG Operating, LLC—103——
243Abraxas Production Corporation—003——
244Andrews & Corkran L.L.C.—003——
245Avighna Energy Inc—003——
246Bar V Energy LLC—003——
247Calfas Cattle & Oil LLC—003——
248Crystal Resources Inc—003——
249Doran W. H. Jr.—003——
250Duncan Production—003——
251Flat Top Operating LLC—003——
252Gain Energy Inc.—003——
253Global Training Academy Inc.—003——
254Horn Drilling Company—003——
255H & T Oil & Gas Company Inc.—003——
256Jamco Oil—003——
257JPW Energy L.L.C.—003——
258Jwo Energy LLC—003——
259Lone Star Prod. Co.—003——
260Maverick Energy Group Inc.—003——
261Mssk Consulting LLC—003——
262Neese Ivel A.—003——
263Oil Country Corporation—003——
264Ragars Oil & Gas Co.—003——
265Repsol Oil & Gas USA LLC—003——
266R W Ranch—003——
267Southwest Loop 1604 Ltd.—003——
268Strahan J. A.—003——
269Tipco—003——
270Triple S Energy—003——
271United Production Co. Inc.—003——
272Weeks C. W.—003——
273WSM—003——
274Kelpetro, Inc.—2202——
275Pioneer Natural Res. USA, Inc.—1902——
276Comstock Oil & Gas, LP—1302——
277Atascosa Exploration, LLC—1202——
278Explorer Energy Corp.—802——
279J. D. Production—802——
280Rio-Tex, Inc.—802——
281Dewbre Petroleum Corporation—702——
282Chaparral Natural Resources,inc.—602——
283Mosbacher Production Co.—602——
284Huntington Energy, L.L.C.—502——
285Associated Services, Inc.—302——
286Bass Enterprises Production Co.—302——
287Peninsula Resources Corp.—302——
288STX—302——
289Anacacho Energy Company—202——
290Del Petroleum Corporation—202——
291Jjrs Investments Inc.—202——
292Palmco Management Co.—202——
293Texas Royalty Corp.—202——
294Whitewater Resources LLC—202——
295Eagle Rock Operating Company,llc—102——
296Propet Oil & Gas Inc.—102——
297Tenneco Oil Co.—102——
298Texas Secondary Oil Corporation—102——
2993-G Operating Company—002——
300Atlantic Richfield Co.—002——

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