COUNTIES · CASS · OPERATORS

Cass 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
1Rose City Resources, LLC131421391Dec 9, 2025Oct 8, 2026
2Fossil Petroleum LLC1402May 13, 2026May 13, 2026
3Chevron U. S. A. Inc.1100Jul 23, 2026Jul 23, 2026
4Zinn Pet.co/Paramount Oil Co Inc—00129——
5Beacon Petroleum Corporation—1072——
6Stetson Petroleum Corp.—20050——
7Sulphur River Exploration, Inc.—19046——
8Killingsworth Oil Co.—12045——
9Ridgeling Well Salvage—0043——
10Barrow-Shaver Resources Co.—53036——
11Sklar & Phillips Oil Co.—25034——
12McKnight C. L.—0031——
13Smith Resources L.L.C.—0031——
14Samedan Oil Corporation—44028——
15Whatley, O.B. Oil Company, Inc.—1022——
16Oil Patch Operators Co. L.L.C.—0021——
17Wilson Energy Resources LLC—0018——
18Buffco Production Inc.—20017——
19Gallery Petroleum LLC—0016——
20United Petroleum & Gas Inc.—0015——
21Whatley, O. B.—3014——
22Chaparral Operating, Inc.—3013——
23Lance Oil & Gas Productions—0010——
24McCormick Production Co Inc.—0010——
25Machin & Associates, Inc.—1509——
26Stroud Petroleum, Inc.—709——
27Texaco Inc.—009——
28Crystal Oil and Land Co.—3308——
29Shell Western E&P Inc.—1808——
30Diamond a Inc.—808——
31Express Energy Group, LLC—208——
32Moransco Energy Corporation—008——
33Petroleum Corporation of Texas—008——
34Crow, David—2306——
35Howell & Sandlin, Inc.—1606——
36Cass Energy LLC—206——
37Magnolia Production Co—006——
38McBrayer Oil Corporation—505——
39Graham Royalty, Ltd.—205——
40Pegasi Operating Inc.—205——
41Valence Operating Company—105——
42Killingsworth S. H.—005——
43Skelly Oil Co.—005——
44Shell Oil Company—904——
45Marshall Expl. Inc.—404——
46Booher Engineering Inc.—004——
47Pegasus P and a LLC—004——
48Sklar Producing Co. Inc.—004——
49Killingsworth, S. H. Est. OF—3103——
50Hilliard Oil & Gas, Inc.—2203——
51Goldsberry Operating Co., Inc.—1803——
52Crystal Oil Company—803——
53Arapaho Petroleum, Incorporated—203——
54Noble Energy Inc—203——
55Louisiana Energy Consultant Inc.—103——
56McDonald Resources LLC—003——
57Mrco Inc.—003——
58Newton Corp. The—003——
59Vanco Oil & Gas Corp.—003——
60Amoco Production Company—702——
61Phillips, Jack L.—502——
62Calyx Exploration & Prod. Corp.—402——
63Tidemark Exploration, Inc.—102——
64Cec Operations of Texas LLC—002——
65Comanche Well Service Corp.—002——
66Eagle Oil & Gas Co.—002——
67Eagle Oil Management LLC—002——
68Graward Operating Inc.—002——
69Hoffmann W. H. /Bill/—002——
70Okie Operating Company Ltd.—002——
71Robertson-Bryce Management LLC—002——
72Sabine Pipe & Supply Co.—002——
73Smith Resources Inc.—002——
74Spear Production Company Inc.—002——
75Whatley Audie Floyd Estate OF—002——
76Williams Expl Co a Delaware Corp—002——
77Pitts Oil Co.-Dallas Prod. Inc.—3601——
78Jones, Carl W. Operator—2601——
79Machin, Art & Associates, Inc.—1601——
80Pennzoil Producing Co.—1301——
81TXO Production Corp.—1101——
82TXP Operating Company—901——
83Dallas Production, Inc.—601——
84Strago Petroleum Corporation—601——
85Marathon Oil Company—501——
86Bass Enterprises Production Co.—401——
87Long Operating, L.L.C.—301——
88Saltwerx LLC—301——
89Woolf & Magee, Inc.—301——
90Calston Exploration USA Inc.—201——
91Camterra Resources, Inc.—201——
92Exxon Corp.—201——
93Getty Oil Co.—201——
94Oakridge Energy, Inc.—201——
95Performance Operating Partners,—201——
96Seelye, William L.—201——
97Darenco Inc. Bloomburg Plant—101——
98D-S-B Properties, Inc.—101——
99Epoch Petroleum Corporation—101——
100Henley & Associates, LLC—101——
101Petroquest Exploration, Inc.—101——
102Southland Royalty Company—101——
103Southwest Operating, Inc.-Tyler—101——
104Swanson, Tom—101——
105Vista Resources, Inc. (A)—101——
106Alt Production LLC—001——
107Arnold Arthur—001——
108Artex Energy LLC—001——
109Chaparral (USA) Energy Inc.—001——
110Elcor Chemical Corporation—001——
111Enbridge G & P (East Texas) L.P.—001——
112Goldco Operating LLC—001——
113Harleton Oil & Gas Inc.—001——
114Jackson Energy Development Inc.—001——
115King J. D. & Parker W. A.—001——
116Klo Oil & Gas L.L.C.—001——
117Livingston Oil Co.—001——
118L & R Petroleum—001——
119Marion County Prod. Co. L.L.C.—001——
120Medallion Oil Company—001——
121Mobil Oil Corporation—001——
122NKC Energy LLC—001——
123Operator P-5 Not on File—001——
124Pan American Petroleum Corp.—001——
125Petroreal Inc.—001——
126Petro-Tex Corporation—001——
127Phillips Petroleum Company—001——
128Ross Production Co.—001——
129Sandpoint Texas LLC—001——
130Savannah Oil Co.—001——
131Sun Oil Co. DX Div.—001——
132Tenneco Oil Co.—001——
133Tracy Production—001——
134Williamson Operating Co. LLC—001——
135Woodbine Production Corporation—001——
136Brooks Petroleum Company—1800——
137Aratex Production Company—800——
138Eason Production Company—600——
139James, T. L. & Company, Inc.—600——
140Sklar-Tex L.L.C.—600——
141Caruthers Producing Co., Inc.—500——
142Princess Three Corporation—500——
143Arkla Exploration Co.—400——
144Big Run Production Company—400——
145Brown, Tom Inc.—400——
146Hill Production Co.-Wisconsin—400——
147J-O'B Operating Company—400——
148Palmer Petroleum Inc.—400——
149Pitts Oil-Dp,inc & Powers, Ray B—400——
150Texark Energy Corporation—400——
151Caddo Management, Inc.—300——
152Cities Service Company—300——
153Cities Service Oil & Gas Corp.—300——
154Encana Oil & Gas(usa) Inc.—300——
155Jackson Energy Development—300——
156Matador Operating Company—300——
157Petro-Chem Operating Company,inc—300——
158Primary Fuels, Inc.—300——
159Texaco Producing Inc.—300——
160Zadeck Energy Group—300——
161Barnhart Co.—200——
162Costilla Energy, Inc.—200——
163Etnr Operating, LLC—200——
164Heflin Oil Company—200——
165Highland Resources, Inc.—200——
166Isle Resources, Inc.—200——
167Legend Energy Company—200——
168Longfellow Energy, LP—200——
169Mobil Producing TX. & N.M. Inc.—200——
170Pancanadian Petroleum Company—200——
171Pegasi Energy Resources Corp—200——
172Prime Natural Resources Inc—200——
173Q.M.G. Operations, Inc.—200——
174San Patricio Corporation—200——
175Spartan Operating Company, Inc.—200——
176U. S. Army Corps of Eng.-F.W Dis—200——
177Williamson Oil & Gas, Inc.—200——
178American Nat. Gas Prod. Co.—100——
179Anadarko E&P Onshore LLC—100——
180Aran Energy Corporation—100——
181Arcadia Refining Co.—100——
182Arkansas Western Production Co.—100——
183Ark-LA-Tex Energy, L.L.C.—100——
184Borean Oil Company—100——
185Brammer Engineering, Inc.—100——
186Braun, C F & Co.—100——
187Bruyere Management Corp.—100——
188Burk Royalty Co., Ltd.—100——
189Cardell-Tlapek Co.—100——
190Caruthers Prod - Sun Expl & Prod—100——
191Citation Oil & Gas Corp.—100——
192Clements Energy, Inc.—100——
193Craig, Carl—100——
194Crown Central Petroleum Corp.—100——
195Czar Resources, Inc.—100——
196Diamond Chemicals Company—100——
197Diamond Shamrock Exploration Co.—100——
198Fair Oil Company—100——
199Fair Oil, LC—100——
200Goodrich Petroleum Company—100——
201Hallwood Petroleum, Inc.—100——
202Huber, J. M., Corporation—100——
203Icanute Energy, Inc.—100——
204Intramerican Oil & Minerals Inc—100——
205Inventory Recovery—100——
206Justiss Oil Company, Inc.—100——
207Kaiser Oil (U S) Ltd.—100——
208KCS Resources, Inc.—100——
209Lacy Operations, Ltd.—100——
210Ladd Petroleum Corp.—100——
211Latexo Oil & Gas—100——
212Lgdc Corporation—100——
213Lynx Energy Company, Inc.—100——
214Marion Corp.—100——
215May Petroleum, Inc.—100——
216McBee, Wm. D., Estate OF—100——
217McLarty Oil Corporation—100——
218M. E. Operating & Services, Inc.—100——
219Moseley Petroleum Corp.—100——
220Murphy Oil USA, Inc.—100——
221Natomas North America, Inc.—100——
222Naylor, T. Lloyd—100——
223Nelson Oil & Gas, Inc.—100——
224O'Benco, Inc.—100——
225O.I.L. Energy, Inc.—100——
226Palmer, John T.—100——
227Pautsky, W.R. Oil Interests—100——
228Pennzoil Company—100——
229Person, J.S., Inc.—100——
230Petrotec—100——
231Phillips, Jack L. Co.—100——
232Phillips, Loyce Estate—100——
233Post Petroleum Company, Inc—100——
234Reef Exploration, Inc. (A-1)—100——
235Rockwall Marketing Corporation—100——
236Rosbottom Production Corp—100——
237RWJ Operating LLC—100——
238Ryder Scott Oil Co.—100——
239Santa FE Minerals, Inc.—100——
240Schlachter, David A.—100——
241Skinner Energy Management, Inc.—100——
242Smith, E.N. III Energy Corp.—100——
243Tamarack Petroleum Company, Inc.—100——
244Texas Gas Exploration Corp.—100——
245Texas Oil & Gas Corp.—100——
246Texxol Operating Company, Inc.—100——
247T-M Well Service, L.L.C.—100——
248Transco Exploration Company—100——
249Tylex, Inc.—100——
250Uptex Operating, L.P.—100——
251Valence Petroleum Company, Inc.—100——
252Vintage Petroleum, Inc.—100——
253Will-Drill Production Co., Inc.—100——
254Zim Energy Corporation—100——
255Zinn Pet Co/Paramount Oil Co,inc—100——

255 OPERATORS · WINDOW ON THE RRC ISSUE DATE