COUNTIES · GALVESTON · OPERATORS

Galveston 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
1Sandpoint Texas LLC110287Apr 16, 2026Apr 16, 2026
2Hilcorp Energy Company131048Nov 19, 2025Nov 19, 2025
3Kaler Energy Corp.11302Mar 3, 2026Mar 3, 2026
4Frio Resources, LLC1201Jul 6, 2026Jul 6, 2026
5Wintershall Corporation—00210——
6Promise Energy Operations, LLC—1098——
7Big Lake Corporation—0094——
8Amoco Production Company—78092——
9Exxon Corp.—103064——
10Houston Oil & Minerals Corp.—116046——
11Humble Oil & Refining Co.—0022——
12Erin Oil Company—3020——
13Gcows Operating LLC—0018——
14Hunt, Hassie Exploration Company—77017——
15Reef Exploration, L.P.—3017——
16Sun Exploration & Production Co.—21014——
17Mobil Producing TX. & N.M. Inc.—23013——
18Mitchell Energy Corporation—20013——
19Mecom John W.—0013——
20Alta Mesa Services, LP—2012——
21Phillips Petroleum Company—7011——
22Placid Oil Company—6011——
23Denbury Onshore, LLC—3011——
24Galveston Bay Operating Co LLC—0011——
25Pan American Petroleum Corp.—0011——
26Rutherford Oil Corporation—1709——
27Huffington Roy M. Inc.—009——
28Viking Resources, Inc.—108——
29Progenies Operating LLC—008——
30Sun Expl. & Prod. Co.-Lafayette—6207——
31Union Oil Company of California—507——
32Sawtooth Operating Co., Inc.—107——
33Doggy Oil Corp—007——
34Fieldwood Onshore LLC—007——
35Fuller William M.—007——
36S & S Energy—007——
37Houston Oil Prod Enterprises,inc—4806——
38Superior Oil Company, The—3406——
39Houston Oil Prod. Enterprise—1906——
40Linc Gulf Coast Petroleum, Inc.—206——
41Hunt Hassie Trust—006——
42Sequoia Oil Company—006——
43MW Petroleum Corporation—1505——
44Moore-McCormack Energy, Inc.—405——
45Texaco Inc.—305——
46Galveston Bay Energy, LLC—105——
47Frankland Well Service—005——
48Plantation Operating Co. Inc.—005——
49Texas Oil & Gas Corp.—005——
50Crown Central Petroleum Corp.—904——
51Goldking Prod. Co.—904——
52Houston Petroleum Company—804——
53Wagner Oil Company—204——
54Bertman Drilling&producing Corp.—004——
55Home Petroleum Corp.—004——
56Marshall J. Howard—004——
57Medallion Production Company—004——
58Polumbus Corporation The—004——
59Sun Expl. & Prod. Co.-Houston—4103——
60Transtexas Gas Corporation—3803——
61Tema Oil and Gas Company—603——
62Cockburn Oil Corporation—403——
63Orion Oil and Gas Corporation—303——
64Ladd Petroleum Corp.—203——
65Nordstrand Engineering, Inc.—203——
66Coastal Oil & Gas Corporation—103——
67McGowan Working Partners—103——
68Shenandoah Oil Corp.—103——
69Black Water Environmental L.L.C.—003——
70Choice Exploration Inc.—003——
71Columbus Energy LLC—003——
72Stratco Operating Co. Inc.—003——
73KCS Resources, Inc.—1602——
74XTO Energy Inc.—1102——
75New Century Exploration, Inc.—902——
76Ballard Exploration Company,inc.—702——
77Texas Independent Explor., Inc.—702——
78American Operating Company—602——
79Tee Operating Co.—602——
80Mecom, the John W. Co.—402——
81Fina Oil & Chemical Company—302——
82First Energy Corp. of Miss.—302——
83Amoco Production Co.-Alvin—202——
84Elliott Oil & Gas Operating Co.—202——
85Gasper Rice Resources, Ltd.—202——
86Graham Royalty, Ltd.—202——
87Great Scott, Inc.—202——
88Magnum Producing & Operating Co.—202——
89Plains Resources Inc.—202——
90Chain Oil & Gas, Inc.—102——
91Cologne Production Co.—102——
92Hitchcock SWD Corporation—102——
93MK Oil and Gas, Inc.—102——
94Quidnet Energy Deployment LLC—102——
95Seagull Energy E&P Inc.—102——
96A & R Resources—002——
97Clark Resources Inc.—002——
98Clinton Oil Co.—002——
99D.J. Oilfield Salvage Inc.—002——
100Dune Operating Company—002——
101Dynamic Production Inc.—002——
102Fort Apache Energy Inc.—002——
103Hailey Jack—002——
104Hunt Hassie Incorporated—002——
105Mobil Oil Corporation—002——
106Noxxe Oil and Gas LLC—002——
107Polaris Enterprises Inc—002——
108Redbird Oilfield Services Corp.—002——
109Shelby Southwest Services—002——
110Standard Resources Corp.—002——
111Startex Energy Inc.—002——
112Talos QN Exploration LLC—002——
113Texas Eastern Transmission Corp.—002——
114Oryx Energy Company—2701——
115Aspect Resources LLC—1501——
116Tepco Resources, Inc.—1501——
117Samson Lone Star LP—1301——
118Cox, Edwin L.—1101——
119Erg Resources, L.L.C.—1001——
120Mitchell Energy Offshore Corp.—901——
121TXO Production Corp.—901——
122Capco Resources Corporation—801——
123Wainoco Oil & Gas Company—801——
124EL Tres Exploration—601——
125Energy Sources, Inc.—601——
126Integral Energy Corp.—601——
127Valero Producing Company—601——
128Kga Oil Company, Inc.—501——
129Sandalwood Exploration, L.P.—501——
130Cross Timbers Operating Company—401——
131EOG Resources, Inc.—401——
132Hamman Oil & Refg. Co.—401——
133Callon Petroleum Operating Co—301——
134Columbia Gas Development Corp.—301——
135General Crude Oil Co.—301——
136Howard, Douglas J.—301——
137Norcen Explorer, Inc.—301——
138Samedan Oil Corporation—301——
139Union Expl. Partners, Ltd.—301——
140Wacker Oil Inc.—301——
141Forney & McCombs—201——
142Howard Exploration, Inc.—201——
143May Petroleum, Inc.—201——
144McCord Exploration Co.—201——
145Midcon Offshore, Inc.—201——
146Petro-Lewis Corporation—201——
147Service Production Company, Inc.—201——
148Tristar Exploration, Inc—201——
149Antara Resources, Inc.—101——
150CA-Tex Petroleum, Inc.—101——
151Corum Production Company—101——
152Cox Oil & Gas, Inc.—101——
153Crystal Exploration & Prod Comp.—101——
154Cxy Energy Inc.—101——
155Douglas Petroleum, Inc.—101——
156Eason Oil Company—101——
157Esco Oil Operating Company LLC—101——
158Guidry, J.R.—101——
159Houston Energy Operating, L.P.—101——
160Kebo Oil & Gas, Inc.—101——
161Mitchell Energy Company L.P.—101——
162Mosbacher Energy Company—101——
163Pennzoil Producing Co.—101——
164Riata Energy, Inc.—101——
165Texaco E & P Inc.—101——
166Ace Field Services Inc.—001——
167Acock/Anaqua Operating Co. LP—001——
168Amax Petroleum Corporation—001——
169Amend Energy Company—001——
170Amrwr LLC—001——
171Atlantic Richfield Co.—001——
172BP Carbon Solutions LLC—001——
173Bradco Oil & Gas Co.—001——
174Cavern Consultants Inc.—001——
175C. G. C. Well Salvaging Inc.—001——
176Cimarex Energy Co.—001——
177C & K Petroleum Inc.—001——
178Claron Corporation—001——
179Cooke & Cooke Inc.—001——
180Culberson Well Service Inc.—001——
181Cwoc—001——
182Energy Reserves Group L.L.C.—001——
183Energy Resources Oil & Gas Corp.—001——
184Eureka Exploration Co. (Eurexco)—001——
185Expro Engineering Inc.—001——
186Exxon Mobil Corporation—001——
187Frio Operations Inc.—001——
188Gasper Rice & Associates Inc.—001——
189General American Oil Co.—001——
190Goodale Bertman & Co. Inc.—001——
191Great Northern Energy Inc—001——
192Gulf Oil Corp.—001——
193Gulf Oil Corp.-Kilgore—001——
194Harrison Dan J. Jr.—001——
195Houston Gulf Energy Corporation—001——
196Hunt H. L.—001——
197Hunt Lamar Trust Estate—001——
198Impact Midstream LLC—001——
199JK Exploration & Production Inc.—001——
200Leggett Marvin E. Trustee—001——
201Marino Charles B.—001——
202Marwell Petroleum Inc.—001——
203Masters Oil & Gas LLC—001——
204McMoran Exploration Co.—001——
205M & M Construction Co. Inc.—001——
206Noble Energy Inc—001——
207North Lake Resources LLC—001——
208Oklatex Oil & Gas Company—001——
209Orangefield East Corp—001——
210Osyka Producing Company Inc.—001——
211Pennzoil Exploration & Prod. Co.—001——
212Petronomics Inc.—001——
213Petro-Smith Operating LLC—001——
214Petrus Oil Company L.P.—001——
215Saxet Operating Company Inc.—001——
216Schroeder B.C.—001——
217Shidler Mark L. Inc.—001——
218Skelly Oil Co.—001——
219Sparta Oil Company The—001——
220Sperlin Hot Oil Service Co.—001——
221Standard Producing Corp.—001——
222Talon Energy & Development Corp.—001——
223Tenneco Oil Co.—001——
224United Texas Corp. (A)—001——
225Vast Oil TX Operating LLC—001——
226Viking Resources Company—001——
227Tepco, Inc.—3400——
228Daniels Corporation, The—2700——
229Stroud Production LLC—1600——
230Smith Energy 1986A Partnership—1500——
231Cometra Oil and Gas, Inc.—1400——
232Davis Petroleum Corp.—1400——
233Sandefer Petroleum Company—1300——
234Houston Domestic Oil Company—1200——
235Sotrana-Texas Corp.—1200——
236KCS Medallion Resources, Inc.—1100——
237Chapman Oil—1000——
238Secondary Gas Recovery Inc.—1000——
239Texas Meridian Res. Expl., Inc.—900——
240Pend Oreille Oil & Gas Co.—800——
241Reef Exploration, Inc. (A-1)—800——
242Buttes Resources Company—700——
243Chapman, Roger Inc.—700——
244Samson Hydrocarbons Company—700——
245Cabot Corp.—600——
246Cockrell Oil Corporation—600——
247Enserch Exploration, Inc—600——
248Helmerich & Payne, Inc.—600——
249Mosbacher Production Co.—600——
250Mueller Exploration, Inc.—600——
251Total Petroleum, Inc.—600——
252Transatlantic Petr (USA) Corp.—600——
253American Petrofina Co. of Tex.—500——
254Coastal Plains Energy, Inc.—500——
255Continental Operating Co.—500——
256FMP Operating Company, Ltd PTN—500——
257Kerns O & G, Inc.—500——
258Moore-McCormack Oil & Gas Corp.—500——
259Moore McCormack Production, Inc.—500——
260Seneca Resources Corp.—500——
261St. Mary Land & Exploration Co.—500——
262Suemaur Expl. & Prod., LLC—500——
263Bristol Resources Corporation—400——
264Caskids Operating Company—400——
265Exchange Oil & Gas Corp.—400——
266Luck Petroleum Corporation—400——
267Monsanto Company—400——
268National Onshore LP—400——
269Richards Producing Company—400——
270Rose, J. & Associates, Inc.—400——
271Sanchez-O'Brien Oil & Gas Corp.—400——
272Tenneco Oil Company-Tgcd—400——
273Alamo Pet. Co.—300——
274American Cometra, Inc.—300——
275Florida Exploration Co.—300——
276Florida Gas Exploration Company—300——
277Frio Exploration Company—300——
278Lindenmuth & Associates, Inc.—300——
279Masters Resources, L.L.C.—300——
280Midstates Oil Company—300——
281Milagro Exploration, LLC—300——
282Ocean Energy, Inc.—300——
283Prolithic Energy Company, L.P.—300——
284Reb Petroleum Co.—300——
285Samson Exploration, LLC—300——
286Stewart Petroleum Company—300——
287Sue-Ann Operating Co.—300——
288Ventum Oil and Gas, LP—300——
289Walter Oil & Gas Corporation—300——
290Weber Energy Corporation—300——
291Adobe Oil Co.—200——
292Adobe Oil & Gas Corp.—200——
293Aikman Petroleum, Inc.—200——
294Algoa Operating Company, LLC—200——
295A.O.E. Operators, Inc.—200——
296Armour-Richards Holdings, Ltd—200——
297Blocker Exploration Co.—200——
298Blue Ridge Operating Company,inc—200——
299Burlington Resources Oil&gas Co.—200——
300Capco Offshore of Texas, Inc.—200——

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