Petrora

COUNTIES · HARRIS · OPERATORS

Harris 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
1Rise Petroleum Investments LLC1400Aug 11, 2026Aug 11, 2026
2Frio Resources, LLC1100Feb 13, 2026Feb 13, 2026
3Zero Corporation of Texas—00488——
4Exxon Corp.—7070317——
5P.o.&g. Operating LLC—00303——
6Trek Resources, Inc.—20262——
7Chevron U. S. A. Inc.—460189——
8Texaco Inc.—230142——
9Gaither Petroleum Corporation—100104——
10Amoco Production Company—88099——
11Brave Heart Resources Inc.—0077——
12Tortuga Operating Company—90066——
13Tandem Energy Corporation—28063——
14Humble Oil & Refining Co.—0056——
15Rio Energy -—1041——
16Exxon Mobil Corporation—41040——
17AA Delta Exploration Inc.—0040——
18Houston Pipe Line Company LP—0036——
19Loch Energy Inc—0036——
20Ballard Exploration Company,inc.—80035——
21Amerada Hess Corporation—37035——
22WRD Operating LLC—1032——
23Kinder Morgan Tejas Pipeline LLC—1024——
24Texaco E & P Inc.—34022——
25Foothills Texas, Inc.—16022——
26Otex Resources LLC—0022——
27Americo Energy Resources, LLC—6021——
28Field, James R.—6021——
29Gary Oil & Gas—1021——
30Amerada Petroleum Corp.—0021——
31Seco Petroleum Corp—13020——
32Petroleum Resources of Texas,inc—5020——
33Milagro Exploration, LLC—3019——
34Alexander John—0019——
35Noxxe Oil and Gas LLC—0019——
36Startap Inc.—0018——
37Houston Pipe Line Company—6017——
38Traders Oil Company of Houston—0017——
39Texas American Resources Company—24016——
40Petroleum Corporation of Texas—8016——
41EOG Resources, Inc.—6016——
42Oklatex Energy Inc.—0016——
43Northwest Energy, Inc.—11015——
44Intercity Management Corp.—4015——
45American Petrofina Co. of Tex.—0014——
46DJH Investments Inc.—0014——
47Hamman Oil & Refining Company—54013——
48Columbus Energy Corp.—35013——
49Morgan Enterprises, Inc.—22013——
50Josey, Lenoir M., Inc.—11013——
51Dunn-Smith Inc.—0013——
52Pan American Petroleum Corp.—0013——
53Seitz M. L. & Son—0013——
54Gulf Oil Corp.—20012——
55American Energy Op. Corp.,the—14012——
56Coastal Oil & Gas Corporation—9012——
57Etoco, L.P.—7012——
58Merit Energy Company—4012——
59Cleary Petroleum Corp.—0012——
60Vondra Energy Corp.—0012——
61Wilson Oil Co.—0012——
62Acco Oil & Gas Company—32011——
63Ipact—14011——
64Anderson Reece B.—0011——
65Enterprise Products Operatingllc—0011——
66LT Oil LLC—0011——
67Moses Tom—0011——
68Pringle Petroleum, Inc.—51010——
69HNG Oil Company—8010——
70Underground Storage, LLC—2010——
71Aikins-Owens—1010——
72EL Paso Field Services Company—0010——
73McCullough O. J.-Operator—0010——
74Northwest Airport Management LP—0010——
75Operator P-5 Not on File—0010——
76Southway Development Corp.—0010——
77Spectral Oil & Gas Corporation—0010——
78Whiting Oil and Gas Corporation—0010——
79McCarter, A. Nelson—3009——
80Baker Atlas—1609——
81Maverick Oil Company LLC—009——
82Northwest Airport Management Inc—009——
83Etoco Incorporated—4208——
84Chain Oil & Gas, Inc.—1208——
85Shell Oil Company—708——
86Texcolada Oil Co.—508——
87Texas Oil Resources Oper, LLC—408——
88Universal Petroleum Corporation—208——
89Petrotx Operating, LLC—108——
90Rana Energy Company—108——
91Caddo Oil Company Inc.—008——
92Driscoll Production Company—008——
93EX-Tex Oil Company—008——
94GWM Operating Company LLC—008——
95King Operating Corporation—008——
96Redbird Oilfield Services Corp.—008——
97Rocinante—008——
98Silcox Arnold Lee—008——
99U.K. Oil Co.—008——
100Jwa Oil Company Inc.—3107——
101Pennzoil Producing Co.—1007——
102Legend Natural Gas II, LP—707——
103Breck Operating Corp.—107——
104Flag-Redfern Oil Company—107——
105Beall Oil Company—007——
106Cockburn Oil Corporation—007——
107D.J. Oilfield Salvage Inc.—007——
108Lee Brothers Oil Co.—007——
109Linc Gulf Coast Petroleum Inc.—007——
110Brammer Engineering, Inc.—2406——
111Mengden, W.—1406——
112Martin Oil & Gas Co.—506——
113Mitchell Energy Corporation—406——
114Osborn,w.b. Oil & Gas Operations—306——
115Galloway Lone Star, L.L.C.—206——
116Lone Wolf Operating Company, LP—206——
117Realitos Energy Corp.—206——
118Sage Energy Company—106——
119Daylight Petroleum LLC—006——
120Deval Drilling Co.—006——
121Fina Oil & Chemical Company—006——
122Kenny Michael J.—006——
123Lively Exploration Company—006——
124Magellan Crude Oil PL Co L.P.—006——
125North Houston Oper. Comm. Agents—006——
126Petro International—006——
127United Engineering Service Inc.—006——
128Webb Jack—006——
129Denbury Onshore, LLC—9405——
130Risien, H. V.—3305——
131HNG Fossil Fuels Company—2905——
132Enderli Oil Company, Inc—2705——
133Sanchez Oil & Gas Corporation—2405——
134Maguire Oil Company—1705——
135Kilroy Company of Texas, Inc.—1605——
136Quadrant Exploration, Inc.—1505——
137Phoenix Hydrocarbons Operating—1105——
138M. J. G., Inc.—1005——
139Puls, W. L.—1005——
140Sonora Petroleum Corp.—705——
141Diamond S Energy Company—105——
142South Houston Production Company—105——
143Ashland Oil Inc.—005——
144Comet Oil & Gas Inc.—005——
145D-Mil Production Inc.—005——
146Ireland Oil Company—005——
147Island Exploration—005——
148Lucky Lad Energy LLC—005——
149McDonnald Oil Company—005——
150Nitro-Lift/OK Manufacturing LLC—005——
151Oil Lease Operating Co.—005——
152RWJ Operating LLC—005——
153Shelton Charles M.—005——
154Silverbrook Operating LLC—005——
155S. M. Production Co. Inc.—005——
156Thompson E. P.—005——
157United Texas Corp. (A)—005——
158U.S. Carriers Inc.—005——
159Marshall, A. B.—3804——
160Tartan Resources Corporation—1504——
161Mesquite Prod. & Explor., Inc.—1304——
162Stockard, W. A.—1304——
163Anderson Producing, Inc—704——
164Houston Hydrocarbons, Inc. (A)—604——
165Eastern Oil Corporation—504——
166Enterprise Resources, Inc.—504——
167Wilmar Oil Co., Inc.—404——
168Josey Oil Company, Ltd.—304——
169Wood Energy Corporation—304——
170Erg Operating Company, Inc.—204——
171Houston Oil & Minerals Corp.—204——
172McRae Exploration & Prod., Inc.—204——
173Roberts, William B., Inc.—204——
174Forney & McCombs—104——
175Pringle Resources, Inc.—104——
176Riseden Ltd., Inc.—104——
177Saxet Exploration Ent. Co., Inc.—104——
178403070 - Name Unknown—004——
179Amerada Div. Arerada Hess Corp.—004——
180Apache Exploration Inc. (I)—004——
181Bock Norman A.—004——
182Chambers Oil Company—004——
183Clinton Oil Co.—004——
184Conner C. L. Trustee—004——
185Erg Resources L.L.C.—004——
186FH Operation Company Inc.—004——
187First United Oil & Gas Corp.—004——
188Gap Creek Oil Corporation—004——
189Halliburton Energy Services Inc—004——
190Hankamer Curtis—004——
191Inland Minerals Management Inc.—004——
192Kramer John A.—004——
193Liberty Energy Co. of Tex. Inc.—004——
194Manning Ralph A.—004——
195Oil Well Services Inc.—004——
196Puls Operating Company—004——
197Reo Operating LLC—004——
198Shelton Charles H.—004——
199U. D. Man Inc.—004——
200Wichita River Oil Corporation—004——
201Joy Resources, Inc.—1903——
202Cobra Operating Company—1803——
203Neumin Production Company—1303——
204Lone Wolf Operating Company—1103——
205W. R. G. Oil & Gas, Inc.—1103——
206New Century Exploration, Inc.—1003——
207Riley, Jim—803——
208McCarter, A. Nelson, Inc.—703——
209KP Exploration, Inc.—503——
210Primal Energy Corporation—503——
211Geo Engineering, Inc.—403——
212Williams, H. E.—403——
213JMC Resources Corp.—303——
214Mse Operating Corp.—303——
215Gordy Oil Company—203——
216Nabors Drilling Tech USA, Inc.—203——
2173-G Operating Company—103——
218Natural Gas Mktg. & Storage Co.—103——
219Nordstrand Engineering, Inc.—103——
220Petro-Lewis Corporation—103——
221Allen Operating Company The—003——
222American Exploration Company—003——
223Buttes Gas & Oil Co.—003——
224Cathexis Oil & Gas LLC—003——
225Clover Production Company—003——
226Cormac Energy Inc.—003——
227Falcon Oil & Production—003——
228Falcon Pipe & Supply Co.—003——
229Fort Worth Natural Gas Inc.—003——
230Godsey W. R.—003——
231Hamill Claud B.—003——
232Horseshoe Drlg. & Prod. Co. Inc.—003——
233Longnecker M. F. Jr.—003——
234Mabee Petroleum Corp.—003——
235McGehee George T.—003——
236McGehee George T. Operating Co.—003——
237Medallion Oil Company—003——
238Noble & Baker—003——
239Pierce Producing Inc.—003——
240Pride Energy Company—003——
241Rancho Oil Company—003——
242Riggs John—003——
243Sherrod Jack Lee—003——
244Shubuta Oil Corporation—003——
245Union Producing Co.—003——
246United Specialties Co.—003——
247Enron Oil & Gas Company—5502——
248KCS Resources, Inc.—2302——
249Lgdc Corporation—1402——
250M & R Exploration Company—1302——
251Carnegie Financial Corp.—1202——
252Kaiser-Francis Oil Company—902——
253Frio Exploration Company—702——
254Graham Royalty, Ltd.—602——
255Plaza Oil & Gas, Inc.—602——
256Secondary Gas Recovery Inc.—502——
257Intercoastal Operating Company—402——
258Kelly-Brock—402——
259Wagner Oil Company—402——
260Black Gold Oil Co.—302——
261B & M Operating Co., Inc.—302——
262Daniels Corporation, The—302——
263Elliott Oil & Gas Operating Co.—302——
264Inexco Oil Company—302——
265Marquee Corporation—302——
266Palace Exploration Company—302——
267CH4 Energy II, LLC—202——
268Mainland Petroleum Co., Inc.—202——
269Marine Contrac. & Supply, Inc.—202——
270Targa Downstream LLC—202——
271Weatherford U.S., L.P.—202——
272Arco Oil & Gas Co.—102——
273Aspen Exploration Corporation—102——
274Cameron Iron Works, Inc.—102——
275McCaleb Oil Corporation (I)—102——
276Mengden, W. Estate OF—102——
277Penford, Inc.—102——
278Phillips, Robert H.,incorporated—102——
279Primrose Resources, LLC—102——
280Texakota Inc.—102——
281Thorp Petroleum Corporation—102——
282Wassell, Emmett E.—102——
283Ace Field Services Inc.—002——
284Alaron Energy Inc.—002——
285Atlantic Richfield Co.—002——
286Baileys Energy LLC—002——
287Berwick Oil & Gas Inc.—002——
288Cantrell E. R.—002——
289Casey & Weempe Oil Co.—002——
290Chrisco Oil Company—002——
291Colorado Oil Co.—002——
292Continental Oil Company—002——
293CRH Corporation—002——
294Cris-Tex Petroleum Co.—002——
295Devon Energy Production Co L.P.—002——
296Douglas Petroleum Inc.—002——
297Edmiston Exploration—002——
298Energy Transfer Company—002——
299Evolution Resources LLC—002——
300Finley Company—002——

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