Montana Operator Directory

3,478 Montanaoil & gas operators

Active operator records pulled directly from the MT BOGC Oil & Gas Wells (DataMiner/ArcGIS).

Source: https://www.dnrc.mt.gov/bog · Updated 2026-07-10

0–9

$20 Bill Syndicate
100805 Exploration USA, Inc.
20 Mile Basin Oil & Refining Co.
240 Acre Syndicate
31 Petroleum Corp.
406 Farms LLC
56 Petroleum Corp.
67 Petroleum Co
79 Oil Company

A

A & G Oil & Gas
A A Oil Corporation
A M 2 Oil
A P Consolidated
A S & P Oil
A-One Petroleum
A. B. Energy LLC
A.B. Singleton, Et Al
A.S. Smith Et Al
A&S Mineral Development Company, LLC
Aakre, Inc.
Abell Oil Co.
Aberdeen Petroleum (USA), Inc.
Aberdeen Resources Corp
Able Oil
Abraxas Petroleum Corporation
Absaroka Oil Development Co.
Ace Oil Company
Ace Rig & Construction Co., Inc.
Ace Syndicate
Ackerman, R J
Ackman-Schulein & Assoc., Ltd.
Adams Company, Inc.
Adams J H
Adams Land Co.
Adams Oil Co.
Adams-Hope
Adams-Latvale
Adanac O. & G. Co.
Adaskavich, Stephen
Adkins Etal
Adlon Oils & Mine
Adobe Resources Corporation (Adobe Division)
Aerolite Oil Co
Aesop Partnership
Aetna Oil Company
Agen Oil Partnership
Agen, J. H.
Aiken, Russell and Corinne
Aikins Drilling Company
Aikman Bros. Corporation
Air Drilling Services
Ajax Oil Co
Al-Aquitaine Exploration
Alane Oils, Ltd.
Albermont Petroleum Ltd.
Alberta Black Coal
Alberta Development Co.
Alberta Pacific Consolidated Oils, Ltd.
Alcoil Expl
Alert Oil Co.
Alexander Syndicate
Alexander, H. F.
Alger, Etal
All Minerals Inc
Allardyce & Wheat
Allardyce, R. L.
Allen Oil Co.
Allen, R.
Alliance Exploration & Production, Inc.
Allied Montana Oil Co.
Allison, B. F., Etal
Allison, Glen
Alme, Henry A.
Aloe's Big Five Oil & Gas Synd.
Alpar Resources
Alpha Petroleum Corp. & James C. Larson, III
Alpine Oil
Alta Vista Oil Corporation
AltaMont Oil & Gas Inc.
Alturas Energy LLC
Altus Expl
Am. Legion Post 57, Malta
Amalgamated Oil & Gas
Amarala Pet
Amarco Resources
Amarex, Inc.
Amarillo Oil
Amax Oil & Gas Inc.
Ambassador Oil
Amerada Hess Corporation
American Climax
American Climax-Barker
American Exploration Company
American Hunter Exploration Ltd.
American Indian Oil Company
American Metal
American Midwest Oil & Gas Corp.
American Minerals
American Petrofina Co. Of Texas
American Quasar Petroleum Co. Of New Mexico
Amerind Oil Company
Amervada Petroleu
Ames Oil & Gas
Amick & Willis
Amick, R. M.
Aminoil Inc.
Amoco Production Company
Amy Oil
Anaconda Company, The
Anaconda-Kevin Oil Co.
Anadarko Minerals, Inc.
Anadarko Petroleum Corporation
Anchor Bay Corporation
Anco Production Co.
Anderson Exploration Ltd., Anderson, J.C.
Anderson F R
Anderson Gerald H
Anderson Oil Company
Anderson Petroleum, Inc.
Anderson Robert E
Anderson Roy G
Andover Resources Corporation
Andrau, W. E.
Andrews, J. E.
ANG Holding (USA) Corp.
Anglo-American Oil Co.
Anna May Oil Co.
Annand-Hutching Cut Bank Syndicate
ANR Production Company
Anschutz Corporation, The
Anschutz Exploration Corporation
Antares Oil
Antelope Dome
Antelope Oil Co Inc
Antelope Resources, Inc.
Antonioli, Peter
Apache Corp
Apache Corporation
Apache Energy Resources Corporation
Apache Gas Company
Apache Western Exploration LLC
Apco Oil Corp.
Apex Energy LLC
Apex Energy, L.L.C.
Apexco Inc
Appell Drilling
Appeman Ralph
Appling, J. B.
Aquarius Oil And Gas Corporation
Arab Oil
Arch Apex Oil Corp
Arch Oil Co
Archer C L
Arcus Oil Company
Arex Oil
Argo Oil
Argonaut Energy Corp.
Aries Oil Co
Arkansas Natural Gas Co.
Armells Petroleum Company
Armour Lacy
Armstead-West Oil Co.
Armstrong Operating, Inc.
Armstrong, Ken D.
Arnold Petroleum
Aronow-Fulton
Aronow, B.A.S.
Aronow, Estate Of Anna
Aronow, W. B.
Arro Oil & Refining Co.
Arro-McDonald
Arrow Creek Development
Arrow Creek Drilling
Arrowhead Exploration
Arstadt Oil
Artex Corp. - Petro Lewis LTD
Artex Oil Company
Asamera Oil Etal
Ashland Exploration, Inc.
Askalta Oil Co., Ltd.
Askin-Becker
Aspen Exploration Corporation
Assiniboine & Sioux Tribes
Athena Energy LLC
Atlantic Oil Company
Atlantic Refining
Atlantic Richfield Company
Atlas Energy Group
Augusta Exploration, LLC
Austin-Mclaughlin
Austin, Chas W
Austral Oil
Avance Oil & Gas
Avanti Helium US, Inc.
Avian Tech International, Inc.
Axem Resources Incorporated
Ayers, Milan R.
Aztec Energy Company
Aztec Gas & Oil Corp.

B

B & B Drilling Co
B & L Drlg Co
B & R Gas & Oil
B J Oil
B-B Oil Co
B.C. Jam, Inc.
B.W.O.C., Inc.
Babcock Etal
Bacon, J. R., Drilling, Inc.
Bad Water Disposal, LLC
Badger Oil Co.
Badlands Resource Recovery, Inc.
Bagdad Oil
Bagdad Oil Company
BAIN Resources, Inc.
Bairs Service Sta
Baker O Seldon
Baker Syndicate
Baker-Barnhill-Corey Oil Co.
Baker-Summerville
Baker, Rex H.
Bakken Water, LLC
Balco Inc.
Baldwin Lynch Energy Corp.
Balko, Inc.
Ballantyne Ventures LLC
Ballard Exploration Company, Inc.
Ballard Petroleum Holdings LLC
Bander & Couch
Bannatyne Oil Co.
Bannettin, J.C.
Banta Petroleum, Inc.
Bar Triangle J Ranch, Inc.
Bard Drilling
Barger Sunburst Oil
Barker & Tyler
Barker L. W.
Barker, Lawrence
Barmac
Barnes Allen
Barnes, J. C. Oil
Barnhart Drilling Co., Inc.
Barnsdall & Foster
Barnwell Industries
Barr Oil Co.
Barr Ranch
Barrett Energy Company
Barrett Resources Corporation
Baruch Foster Corporation
Basic Earth Science Systems, Inc.
Basin Petroleum Corp.
Bass Enterprises Production Co.
Basso, Westwood, Lindberg, Wolf
Battle Creek Oil &Gas
Batts Oil And Gas Corp.
Batts-Cardinal
Batts, John
Baugham
Bauman, Ralph H.
Baumgartner, F. W.
Bay Houston Towing Co.
Baysel Oil & Gas
Bayswater Exploration & Production, LLC
BBC & F Exploration
BBX Operating Co. LLC
BD Oil & Gas LLC
Beaird Patrick
Bearcat Petroleum, Inc.
Beard Oil Co.
Beardslee, A.
Bearpaw Oil & Gas Co.
Bears Den Oil
Beartooth Energy, LLC
Beartooth Oil & Gas Company
Beauchamp, C. W.
Beaupre Oil
Beaverhead Alberta Oil Co.
Beaverhead Oil Producing Co.
Beck Petroleum Co.
Becker, Earl W. and Blanche
Becker, Frank H.
Beer O. N. & John R.
Beery Oil Co.
Behm Energy, Inc.
Bel Oil
Bel Oil - Hudson
Belco Development Corporation
Bell Adams Syndicate
Bell Mining
Bell Western Corp
Bell, Frank
Bell, Gladys
Belle-Truesdelle
Bellevue Resources, Inc.
Bellwether Expl
Benjamin, Norman W.
Benson Mineral Group, Inc.
Bensun Energy, LLC
Berco Resources, Inc.
Beren Corporation
Berenergy Corporation
Berexco LLC
Berexco, Inc.
Berridge Nadeau
Best Petroleum
Beta Exploration, Inc.
Bethol Corp
BG&O Co.
BHP Petroleum (Americas) Inc.
Bibeau, Pat
Bickerstaff, Douglas B
Bickford, Catherine or AW
Big Bud Syndicate
Big Dome Oil Co.
Big Eleven Oil
Big Four Oil Co
Big Horn Oil & Gas Development Co.
Big Otter Oil Company
Big Rose Colony, Inc.
Big Six
Big Sky Energy, LLC
Big Sky Ranches, Inc.
Big Snowy Drilling Co.
Big Snowy Resources LP
Big Timber Oil Syndicate
Big Wall Oil
Big West Oil Co.
Big West Royalty
Biggs, C. E.
Bill Barrett Corporation
Billings & Cotten
Billings Oil & Development
Billings Oil & Gas
Bills, Don
Bingham, Nelson G.
Bird Oil Corporation
Birney Gas & Oil
Bison Operating Company
Bistate Oil Co.
Bitter Creek Oil Co.
Bjornson Operators
Bjornstad, Carl Eugene
Black Butte Energy LLC
Black Butte Oil
Black Dog Operating, LLC
Black Eagle Operating Company, Inc.
Black Gold Corp.
Black Gold Energy Resource Development, LLC
Black Hawk Resources Corp.
Black Hawk Resources, LLC
Black Hills Exploration and Production
Black Label Oil Co.
Black Mountain Oil Corp.
Black, A. C. Etal
Blackfeet Tribe
Blackford Energy Company
Blackleaf Petroleum Co.
Blacksmith Oil Tools USA Inc.
Blackstone Operating
Blair, Arden
Blase, A. H.
Blixrud, Charles & Sharon
BLM - Bureau Of Land Mgmt.
Blocker Exploration
Blue Diamond Petroleum Inc
Blue Dome Oil
Bluebaugh, G. S., Etal
Bluebird Energy, LLC
Bluebonnet Energy Corporation
Bluesky Oil & Gas, Inc.
Bluestone Natural Resources II, LLC
BMB LLC
BNV Energy Company LLC
Bobcat Oil
Boekel, R. G.
Bogart, Robert
Bohn & Cool
Bohy Oil
Bolack, Tom
Boland, Edward M.
Bolin Oil Company & Cyrus Frost
Bonabrake, A.C. Etal.
Bond, Roland, Etal.
Bootstrap Oil LLC
Boren, Sam Oil
Boston-Montana Syndicate
Boswell Energy Corporation
Bottineau-Minot Oil Co.
Bow Valley Petroleum Inc.
Bowdoin Gas Co.
Bowers Oil & Gas, Inc.
Bozo Oil Co.
Braden Oil
Bradley & Bradley
Bragg & Johnson
Brainstorm Energy, Inc.
Branch Oil & Gas
Branch, Colby & Jill
Branch, Jerry L Associates
Branch, Jerry L.
Brandon Oil Company
Braun, C. F. & Co.
Breck Operating Corp.
Brehm C E
Breuer & Curran
Bridger Canyon Oil Co.
Bridger Petroleum
Brightview Resour
Brill, V.A.
Brinkerhoff Company, The
Briscoe Petroleum, LLC
British American
British Dominion
Britton Etal
Broadview Petroleum Co.
Broadview, City Of
Brockman, H.L.
Broers, H.J.
Bronco Oil & Gas Company
Bronson, C.R.
Brook, T.L.
Brooks & Sullivan
Brooks, Zach
Brophy, Keith E. And Mary Jean
Broschat Engineering & Management Services
Brotyn Oil Co.
Brown Drilling
Brown, A.N., & Pickrell, D.J.
Brown, Grant O., Jr
Brown, H.L., Jr
Brown, J. Burns Operating Company
Brown, Joe W.
Brown, Thomas P.
Brown, Tom Inc
Browning-Sunburst
Bruceann Et Al
Brundage, George
Brush Creek Syndicate
Bryant Brothers
BTA Oil Producers, LLC
Buchanan, John D.
Buckley Production
Buckley, Michael T.
Bue, Herbert
Buffalo Dome Oil Company
Bull Creek Oil & Gas Development Co.
Bulls Eye Syndicate
Burbridge-Unruh
Burch Bob
Burd, Levi J. Etal.
Burk Gas
Burke Etal
Burks W E
Burlington Northern Inc.
Burlington Resources Oil & Gas Company LP
Burnett Oil Co. Inc
Burns, A.A.
Burns, R.L.
Burt Oil Company
Burton/Hawks Inc
Buscher Oil Etal
Bushford Pet Syndicate
Butler Oil & Gas
Butler, C. H.
Butte Oil Co.
Butte Oil Syndicate
Butte-Kevin Oil Co.
Butterfield, Gale
BWAB Incorporated
BXS Oil Company
Bye, April & Scott
Byers, Dewey
Byorum Oil Co.
Byrd, Patrick H.

C

C & K Petroleum Inc.
C B S Oil
C I G Expl
C R Energy Corp.
C.A. Weil Syndicate
C.B. Moncrief
C.B. Schaffer Oil Co.
C.M. & St. P.R.R. Co.
C.R. Call Etal
Caam Oil Co
Cabeen Exploration
Cabot Oil & Gas Corporation
Cabot Petroleum Corporation
Cabot, Allan B.
Cagney-Sunburst
Cajr Exploration
Calburn Energy Corporation
Calgary-Sunburst Oils Ltd.
Caliber North Dakota LLC
California Co., The
California Company, The
California Oil Co.
California Petroleum. Corp.
California Syndicate
California-Montana Co.
Callaway William
Callgas
Calvert Drilling & Producing Co.
Cambrian Management, Ltd
Cameo Minerals Inc
Camerland Cardina
Campanella, George L
Campbell & Associates
Campbell, A.H.
Campbell, Gordon
Campbell, Gordon Synd.
CamWest II, LP
Canada Northwest Land Ltd.
Canadian-American
CanAm Engine, Inc.
Canartic Resources, Inc.
Candel Oil
Canfield & Davis
Canfield, O. B.
Canterra Petroleum Inc
Canyon Energy Operating, LLC
Capital Energy
Capital Energy Corp
Capitan Operating, LLC
Carbon Energy Corporation (USA)
Carbon Oil & Gas Company
Carbon Oil Co.
Carbon-Montana Oil Co.
Cardinal Drilling Company
Cardinal Oil, LLC
Cardinal Petroleum
Cardinal, Floyd L.
Cardson Oil Co
Carincoss Ryeburn
Carlo J Farina Co., Ltd.
Carlon Oil
Carmax Industries
Carmount Oil & Ga
Carnegie Petroleum of Montana
Carnell, Millicent C.
Carney, E. C.
Carney, et al
Carney, Tom
Carpenter-Harris
Carr-Gary Corporation
Carrell Oil Company Dba Coco
Carroll Bros., Etal
Carroll, L.R.
Carroll, Sterling C.
Carscallen & Mitchener
Carter Oil Co.
Carter, John
Cascade Gas Co.
Cascadia
Casey & Kuhleman
Caskey, Nevin R.
Cassidy Etal
Castle & Pardee
Cat Creek Center Oil Co.
Cat Creek Holdings LLC
Cat Creek Oil
Catlett-Frary-Taylor
Catlett, J. Bland
Cavalier Petroleum
Cayman Corp.
Caza Exploration Company
Celeron Oil & Gas Company
Celsius Energy Company
Cenergy Exploration Company
Cenex, Inc.
Centana Petroleum Corp.
Centennial Oil
Central Montana Resources, LLC
Central Montana-British Dominion Oil Co.
Central Resources, Inc.
Centura Inc.
Century Drilling Company
Century Oil & Gas Corporation
Century Oil Company
Chaco Energy Company
Challenger Minerals Inc.
Chamberlain, Ralph E.
Chamberlain, Virgil R.
Chambers & Kennedy
Chambers, C.W.
Chambers, Jerry, Exploration Co.
Chambers, R.E.
Chambers, Wayne L.
Chandler & Associates, Inc.
Chandler Energy, LLC
Chaparral Energy, LLC
Chapman, H.A.
Charger Resources, LLC
Charlesholm Oil
Charoil Co., J. Norm And Charlotte Sibley Dba
Cheadle, Ned Jr.
Chebul, Bill
Chelin LLC
Chepeta Drilling & Exploration Co.
Cherry & Kidd
Cherry Creek Oil Co.
Cherry Creek Sheep Co.
Chesapeake Operating, LLC
Chevron U.S.A. Inc.(A Pennsylvania Corp.)
Cheyenne Oil & Gas
Chicago Consolidated Producing Co.
Chicago Corp.
Chief Drilling
Chinle Oil & Gas
Chinook Oil & Gas Company
Chinook Syndicate
Chippewa Cree Tribe
Chism, L.S.
Choctaw II Oil & Gas Ltd.
Chouteau Oil & Gas
Christmann Energy Corporation
Christmann, John J.
Church, G.M.
Churchwell, E.H., Etal
Cicon, Rudy S. & John M.
Cima Capitan Inc
Cirque Resources LP
Citation Oil & Gas Corp.
Citation Oilfield Supply & Leasing, Ltd.
Cities Service Oil Co.
City of Baker
City Of Malta
City Oil Company, Inc.
Claggett Development Co.
Clarence Verploegen
Clark Canadian Exploration Company
Clark Drilling
Clark Fork Oil
Clark, A.A.
Clark, James C.
Clark, James L.
Clay's Consulting, LLC
Cleary Petroleum
Cleveland Syndicate
Cline Production Company
Clinton Oil
Clouse, John D
Clover Energy
Cloverleaf Petroleum Co.
CNG Producing Company
Co-Operative Pertoleum Co.
Coalridge Disposal And Petroleum, Inc.
Coastal Petroleum Company
Cobb & Radigan
Cobb & Rutherford
Cobb-Coolidge
Cobb-Hardrock
Cobb-Roberts
Cobb, A.B. & Company
Cobb, E.L.
Cobra Oil & Gas
Cobra Oil & Gas Corporation
Cockrell Corporation
Coden Exploration
Coe Oil Co.-W.C. Coe
Coeur d'Alene Oil Syndicate
Collier, Beth
Collins & Ware, Inc.
Collins Brothers
Colonel Kevin Oil Co.
Colonel Kobes Syndicate
Colorado Oil And Gas Corporation
Colossus Operating LLC
Columbia Petroleum, Ltd.
Columbus Energy Corp.
Columbus Oil & Gas
Comanche Drilling Company
Comdisco Exploration, Inc.
Comet Ridge Montana, LLC
Commonwealth Petroleum
Community Gas & Oil
Compadre Oil Corp.
Compass Energy, Inc.
Compass Exploration, Inc.
Concept Resources, Inc.
Cone & Petree Oil & Gas Exploration, Inc.
Conoco Inc.
ConocoPhillips Company
Conquest Exploration Company
Conrad Exploration Co.
Consolidated Gas
Consolidated Oil & Gas, Inc.
Constitution Gas Transport Co., Inc.
Consumers Gas
Contango Resources, Inc.
Continental Development Co.
Continental Oil Company
Continental Resources Inc
Conwest Exploration Company, Ltd.
Cook & Coolidge
Cool Spring Colony, Inc.
Coolidge and Coolidge, Inc.
Coolidge, G. B., Inc.
Coolidge, Tim & Billiette
Coolidge, Timothy J & Billiette Nebel
Cooper, W.O.
Cope Dev. Co., Ltd.
Coquina Oil Corporation
Corey Oil Co.
Corner Oil Company
Cortez Operating Company
Coseka Resources
Cosmos Petroleum
Cotton Petroleum Corporation
Couch Drilling
Cougar Petroleum Corp.
Cowan & Son
Cowry Enterprises, Ltd.
Cox Exploration, Inc.
Cox, Edwin L
Cox, H. Mack Etal
Cox, John L.
Cox, Wayne
Coyote Resources LLC
Crabtree, Arthur
Craft, R.C.
Craig Drilling Co.
Craig Oil Etal
Cranston, Earl M.
Credo Petroleum Corporation
Creek Oil Company
Creel, J.Y.
Cremer Energy Inc.
Cremer Etal
Crescent O. & G. Co.
Crescent Oil & Gas Corporation
Crescent Petroleum Corporation
Crescent Point Energy US Corp
Crilly, A.M.
Crittenden, G.R., Etal
Crocker, Earl
Croft Oil & Gas
Croft Petroleum Co.
Crosby, Dr.
Crossbow Corporation
Crowe, H.I.
Crown Drilling
Crown Oil, Inc.
Crown Production
Crude Oil Service Company
Crumley-Sunburst
Crumley, A.E.
Crumley, A.E. & Sons
Crumley, Lon, Trustee
Crusade & Roidan
Crusade Holdings
Cruse, Tom
Crystal Carbon Co.
Crystal Oil & Land
Cummins-Emerick-Redlands
Curlew Oil Company
Custer Creek Oil & Gas Co.
Custom Carbon Processng, Inc.
Cut Bank Refining
Cut Bank Resources, Inc.
Cypress Energy Partners - Sheridan SWD, LLC
Cypress Oil Co.
Cyprus Mines
Czar Resource Inc.

D

D & H Energy, LLC
D & M Welding LLC
D-J-W Drilling Co.
D. A. S. Resource Ventures Inc.
D.C. Dudley & Associates
D&A Water Disposal LLC
D90 Energy, LLC
Dabbler Petroleum Inc.
Dabros Properties, Inc.
Dahl, V.F.
Dailey Construction
Dakota Montana Oil Co.
Dakota-Dubuque Oil Co.
Dakota-Williston
Damson Oil Corporation
Dana, Ed, Livestock
Dangerfield Resources (USA), Inc.
Daniels Petroleum Co.
Danielson, Patricia, Oil
Dankbar, LLC
Dannenberg Ranch, Inc.
Darrah Oil Company, LLC
Dart Oil & Gas Corporation
DAS Resources Inc
Daube Company, The
Daugaard & Whitmore
Davis Creek Syndicate
Davis Etal
Davis Oil Company
Davis Petroleum, Earl G. Davis Dba
Davis Syndicate, Tom
Davis, H.C.
Dawson & Cramer
Dawson Mutual Oil
Dawson, Paul
Day, J.G.
Day, S.V.
Daybreak Oil Co.
DCT, LLC
De Kalb Petroleum
De Schon, O.I.
Dea & Sherrard
Decalta Oil Enterprises, Inc.
Decker Operating Company, L.L.C.
Deep Rock
Deer Creek Oil
Deerfield Etal
Dees Farms, Inc. Et Al
Deininger, Art E.
DeKalb Agric. Assoc., Inc.
Dekalb Energy Company
Dekalb-Northern O
Del Norte Oil
Delfern Oil
Delhi Oil
Delmar Oil & Gas
Deloraine Oil
Delphi International Inc.
Delphia Oils, Ltd.
Delta Petroleum Corporation
Delta Petroleum, Inc.
Demont Oil
Denbury Onshore, LLC
Dennis, Bob
Denver Oil
DEPCO, Inc.
Deshon O J
Desmons F
Detroit-Wyoming Oil Co.
Development Services Corporation
Devenbaugh C
Dever, John P.
Devereaux Oil Co.
Devils Dome Oil Company
Devon Corporation
Devon Energy Production Co., LP
Devon Energy Williston, L.L.C.
Devon Louisiana Corporation
Devonian Oil & Gas
Diamond Oil & Gas LLC
Diamond Oil Co.
Diamond Shamrock Corporation
Diamond T Petroleum Co.
Dickerson, Pete
Didsbury Syndicate
Dietrich Exploration
Digital Operating Company LLC
Dilling, Etal.
Dilman-Stevenson
Discovery Geoservices Corp.
Discovery Inc.
Diversified Resources Limited
Dixie Oil Co
DL Energy, LLC
DL Incorporated
DNR Oil & Gas Inc.
Dockery, R.E.
Doheny, Patrick A.
Dolezal, George Jr
Dome Exploration
Dome Oil
Dome Petroleum Corp
Dominion Montana
Dominion Oil Co., Limited
Dominion Oklahoma Texas Exploration & Production
Donnell Drlg-Pure
Dorchester Exploration Inc.
Doswell, T.W.
Doughty, Earl
Douglas Petroleum, Inc.
Dovall Pilling
Dow, Glen A. Etal
Dox Oil
Drawings, LLC
Drees Petroleum Co.
Dreiling Ltd.
Drought, W.E., Etal.
Drumheller, D.M.
Drumheller, Jerome
Dry Coulee Oil & Gas Company
Duck Creek Energy, LLC
Duffield, O.F.
Dugger, William L
Dukart, Kevin & Jennifer
Duke Oil, Inc.
Dunbar Oil Company
Duncan, Raymond T.
Duncan, Walter
Dunkirk Oil Co.
Dunlap, D.D.
Dunlap, W.F.
Dunn & Boreing
Dunoco Inc
Dupont Oil Co.
Dupuy, J.W.
Durham, W.L.
Dutton Creek Oil Co.
Dyco Petroleum Corporation
Dyer, J.G.
Dyna-Ray Oil & Gas
Dynaco Inc.
Dynasty Energy Exploration & Development,Ltd.
Dyrdahl, Bob

E

E & M Oil & Gas Co.
E B M Oil
E. L. K. Oil Company
Eagle Consolidate
Eagle Creek Colony
Eagle Minerals, Inc.
Eagle Oil & Gas Co.
Eagle Oil Co.
Eagle Operating Inc.
Eagle Petroleum
Earl Oil
Earthstone Energy, Inc.
Eason Oil
East Chicago Oil Co.
East Crest Oil Co. Ltd.
East Elk Basin Oil Co.
East End Colony, Inc.
East Flank Oil
East Fort Peck Exploration LLC
Eastern American Energy Corp
Eastern Montana Oil & Gas Co.
Echo Oil Corporation
Eclipse Energy Inc.
Eclipse Oil Co.
Eddy & Engleking
Eddy, John N. Et Al
Eddy, P.L.
Eden Oil
Edge Petroleum Operating Company, Inc.
Edmonton-Montana Syndicate
Edwards Etal
EEN, LLC
Ehlen, E.C. Etal
El Paso Natural Gas Company
El Paso Production Oil & Gas Company
El Santo Petroleum Corporation
El Tres Exploration, Inc.
Elder Oil
Electron Oil & Gas
Elenburg Exploration, Inc.
Eliakin Oil Co.
Eline-Sunburst Oil & Refining Co.
Eline, Et Al
Elk Basin Oil
Elk Petroleum, Inc.
Elk-No Pacific&Su
Elkhorn Oil & Gas Co.
Elliot, Miller, Conklin
Elliott, J.W. Drlg
Ellis Co.
Elliston-Feathers
Embar Drilling
Emerald Operating Company
Emmons Etal
Empire Drilling
Empire Gas & Fuel
Empire North Dakota LLC
Empire Petroleum
Empire State Oil Co.
Empire Utilities Ltd
Emrick Oil
EnCana Oil & Gas (USA) Inc.
Enclave Operating, LLC
Encore Energy Partners Operating, LLC
Encore Operating LP
Endeavor Energy Resources, LP
Endeavour Operating Corporation
Enders D W
Energen Resources Maq, Inc.
Energetics Inc
Energx, Ltd.
Energy Corporation of America
Energy Equity Company
Energy Operating Company, Inc.
Energy Operating Corporation
Energy Reserves, Group, Inc.
Energy Rock Inc.
Enernet of Wyoming LLC
Enfield Oil
Engleking
Enneberg Energy, Inc.
Enserch Exploration, Inc.
Enstar Petroleum, Inc.
Enterprise Energy, Inc.
EOG (New Mexico) Inc.
EOG Resources, Inc.
EP Operating Company
Epperson, Donald
EPS Resources Company
Equitable Oil
Equitable Resources Energy Co, Western Region
Equity Oil Company
Erico Resources
Erskine Farms, Inc., R & E
Essex Oil
Ethridge Basin Oil & Gas Co.
Euclid Oil
Evans, T. M.
Everett, W. R.
Evergreen Resources, Inc.
Evertson Operating Company, Inc.
Evolution Oil Group, LLC
Exeter Drilling Company
Exeter Exploration Company
Exploration Drilling
Exploration Ventures Company, Inc.
Exxon Corporation

F

F & F Oil & Gas Co.
F & P Corp.
F.C. Keane
F.U.C.E., Inc.
Fad Oil
Fair & Albermont
Fair & Woodward
Fair Operating Account
Fairways Exploration & Production, LLC
Faith Drilling, Inc.
Falcon Energy Partners LLC
Falcon Oil & Gas Company, Inc.
Falcon Petroleum Corporation
Falcon Seaboard Drilling Co.
Fallon Gas
Fantle S Jr
Fargher,Prevol & Fargher
Fargo Oil
Farmers Union Central Exchange, Inc.
Farrish, W.T.
Fauque, John
Featherstone
Feldt & Maytag
Ferdig Oil
Ferdig Sunburst Oil Co.
Ferdig-Hughes
Fergus Gas Syndicate
Ferguson & Boswor
Ferguson, P. L.
Ferndale O. & G. Co.
FH Petroleum Corp.
Fidelity Exploration & Production Co.
Fidelity Gas
Fidelity Oil
Fields, Burt
Fifty Six Petroleum
Filan Etal
Fina Oil And Chemical Company
First Avenue Corp
First Etal
First International
Fisher Etal
Five B's Oil And Gas Corporation
Five-Forty Corp.
Flank Oil
Flare Energy Corp
Flat Willow Farm, LLC
Flatt Corp.
Flatwillow Oil
Fleming, Ben
Flesch, Edward Lyle & Allen
Flesch, Lyle R
Flickertail Oil Co.
Florence Oil & Gas
Florentine Exploration & Production, Inc.
Florida Exploration Company
Flying J Oil and Gas, Inc.
Flynn Bros
Flynn Energy Corp
FMP Operating Company, A Limited Partnership
Fogelson, E.E.
Folmsbee Etal
Foncannon, C.B.
Fonkalsrud Etal
Foothills Company, Inc.
Forbes, G.T. & J.F.
Forcenergy Inc.
Ford Creek Oil Co.
Ford, Hugh W.
Forest Oil Corporation
Fort Peck Tribes
Fort Worth Operating Company, LLC
Fortuna (US) Inc.
Forward Energy, LLC
Forza Operating, LLC
Foster & Hull
Foster, Charles P. And Smith, Loren E.
Foundation Energy Management, LLC
Foundation Oil
Four J Resources, Inc.
Fouts, Jerry D. Etal
Fowler Oil
Fox Petroleum
FPCO Oil And Gas Co.
Fram Operating, LLC
Framont Petroleum
Frances Oil
Franklin & Aston
Frantz Corporation
Frary, G. S. & Frary. B. L.
Fraser and Smith
Frazer Etal
Frazer-Inland Petro. Co.
Frazer, Kenneth
Fredlund, Dale
Freeman & Marble
Freeport Oil
Freeport-McMoran Inc.
Fremont Petroleum
Frickey, Norton
Fromberg Syndicate
Frontier Exploration Co.
Frontier Refining
Frye Etal
Fuel Resources Development Co
Fulco
Fuller, W.M.
Fulton & McKnight
Fulton Blackfeet Oil Co.
Fulton Etal
Fulton Fuel Company
Fulton III, William M.
Fulton Producing Co.
Fulton, William M.
Fundamental Oil
FX Drilling Company, Inc.

G

G & A Oil
G/S Producing, Inc.
Gagel, R.E.
Gainer, B.R.
Galaxy Oil
Gallaco Corp
Gallagher, C.R.
Gallagher, Victor
Gallatin Gateway Oil Co.
Gallatin Valley Oil Co.
Gallup City Oil, Inc.
Gallup City Oil, LLC
Ganey Oil Company
Garfield & Pasternak
Garman Stripper Wells, LLC
Garner & Ketell
Gary Drilling Co.
Gary Energy Corporation
Gary-Williams Company, The
Gary, Samuel, Oil Producer
Gary, Samuel,Jr.& Associates, Inc.
Gas Development Co.
Gas Producing Enterprises
Gascho, N.R. Etal
Gatzmeier Etal
Gay-Heringer
Gay, Jack
GCRL Energy Ltd.
Gear Petroleum Company Inc.
General American Oil Co Of Texas
General Atlantic Energy Corporation
General Crude Etal
General Oil Co.
General Oils Ltd
General Petroleum
General Well Service Inc.
Genesis ST Operating LLC
Genou Oil
Geo-Stratum LLC
Geo. Metlan Etal
Georesources, Inc.
Geostar
Geraldine Oil & Gas
Gerber Energy Corporation
Gering & Jantz
Getty Oil Company
Gibraltar Oil
Gibson Drilling Co.
Gibson, W.R. Jr
Gill Cattle Co
Gillenwater, C.E.
Gilster, Ralph R. III, Inc.
Ginther, Warren Etal
Glacier Minerals, LLC
Glacier Production Co.
Glacier Production, Inc.
Gladys Bell Oil
Glasgow Exploration Corp.
Glasscock Oil
Glenhoma Oil Co.
Glenrock Oil Company
Global Enterprise
Globe Minerals
Goddard Syndicate
Goeddertz
Goeddertz, Albert
Goering, J.W.
Golden & Land Oil Company
Golden Arrow Exploration, LLC
Golden Eagle Refining
Golden Fields Farm
Golden Oil
Golden Valley Oil
Golden West
Goldrock Minerals LLC
Goldston, W J
Good Hope Oil & Gas Co.
Good, Elton
Goodstein Oil & Gas
Goodstein, Fred
Gordon & Bickerst
Gordon Campbell C
Gordon Robert J C
Gordon, Etal.
Gose, Steve
GPE Energy, Inc.
Grace Petroleum Corporation
Grace-Ford Oil & Gas Co., Inc.
Graham Oil Co
Graham Royalty, Ltd.
Grand Operating, Inc.
Grand Prix Natural Gas Co.
Grand Resources, Ltd.
Granite Creek Energy LLC
Grannell Drilling
Grant Oil Co.
Grant, Chas Etal
Grass & Sons, Inc.
Grassy Butte LLC
Graves Drilling
Gray Eagle Oil Company
Great American Oil
Great Basin Petroleum
Great Northern Drilling Company
Great Northern Mutual Oil Co.
Great Plains Energy, Inc.
Great Plains Operating, LLC
Great Plains Resources Inc.
Great Western Drilling Company
Great Western Oil
Greater Great Falls Oil Co.
Greater Montana Oil Co.
Grebe Drilling Company
Grebe, Ed
Greeheyco, Inc.
Green Valley Operating, LLC
Greenfield Oil Company
Greenup Roscoe
Greenwalt, Linda & Gary
Greer, George J
Grey Wolf Production Company, Inc.
Greybull-Montana
Grier Bros
Griffin Properties, Inc
Griffith Oil Co
Griffon & Associates, LLC
Griffon Petroleum, Inc.
Grigsby, Grady
Grizzly Drilling Company
Grynberg Petroleum Company
Grynberg, Jack & Assoc.
Grynberg, Jack J.
Guarantee Oil
Gudgel, J.
Guffey-Seitz Etal
Guilford, L.D.
Gulf Oil Corporation
Gulf States Oil Company
Gulfstream Petroleum Corporation
Gulley, J.C. Etal.
Gunderson Farms, Inc.
Gunderson, George
Gunderson, John & Johanna
Gustafson, Gale and Susan
Guthrie, A. K.
Guthrie, Alfred Bertram III & Margaret
Guyer, W.B.
Gypsy Highview Gathering System, Inc.
Gypsy Oil

H

H & G Petroleum Corporation
H & M Oil Producers, Inc.
H & R Well Services, Inc.
H L M Drilling
H O H River Oil C
H P C Inc
H. G. O. Petroleum Company
H.B. Zachry Company
H&R Energy, LLC
Habets Oil & Gas, LLC
Hadley Etal
Hadley, Herbert D.
Hafer, A. Rex
Hagan Structure Oil Company
Hagenbarth
Hager-Stevenson Oil Co.
Hagerman & Pond
Hagerty Oil Co.
Halbert & Jennings
Halbouty, Michel T.
Hale Et Al, Albert
Hale, Walter A.
Hall Oil Company
Halliburton Company
Hallis Etal
Hallwell Gas & Oil Company
Hallwood Petroleum, Inc.
Halmans, Hubertus & Eleanor A.
Halter, William
Halvar Resources, Inc.
Hamilton & Hamilton
Hamilton Brothers Oil Company
Hamilton, D.G.
Hamilton, R.F.
Hammond Valley Colony, Inc.
Hamon Operating Company
Hancock Oil & Gas
Hancock Warren J.
Hanlon Etal
Hanna Oil & Gas Company
Hannah Oil Co.
Hannah-Porter Company
Hanson Operating Co., Inc.
Hanson-Cruse
Hanson, Ernest A.
Hard Times Oil
Hardin Auto Co.
Hardin Gas & Fuel
Hardin General Hospital
Harding Brothers
Hardrock Oil Company
Harken Oil & Gas
Harper Oil Company (Buckhorn Petroleum)
Harris Etal
Harris, Lee
Harrison Etal
Harrison O&G
Harrison, Ray
Harrison, Sam G.
Hart Exploration And Production Company
Hart S-Green Trust
Harvest Time Oil, Inc.
Haskell Etal
Hat Oil Co
Hatch, J. R.
Hathaway, Marc L.
Hauge Bros.
Hauge-Truesdell Co.
Haugen
Havre Drilling Co.
Havre Natural Gas Co.
Hawkeye Oil Co
Hawkins, Robert S.
Hawley & Desimon
Hawley Company, Ted
Hawley Hydrocarbons, Merrill&Carol Hawley Dba
Hawley Oil Company
Hawley-Northrup
Hawley, J.B.
Hawley, Luella
Hawthorne Exploration
Hawthorne Oil & Gas Corporation
Hayes, Harold
Hayes, R.E.
Haynes, Keisel
HB Oil, LLC
HC Resources, LLC
HCM Energy LLC
Headington Oil Company LLC
Heah, A.A.
Heavy Water Haulers Inc.
Hecla Oil Co.
Hedges, Spencer B.
Heep Oil
Heintz & Peterson
Heintz, R.A.
Heintz, R.A. and Peterson, M.C.
Held By Production, Inc.
Helis Oil and Gas Company, LLC
Helis, Estate Of William G., A Partnership
Hell Creek Crude LLC
Hellgate Ventures Inc.
Hellinger Bros Farm
Helmac Trust
Helmerich & Payne Inc
Helton Eng. & Geol. Services
Henderson Oil
Henderson Prod. Co.
Hendrickson, C.H.
Henningsgard, Warren I.
Herco Exploration LLC
Hereford Resources, LLC
Heringer, C.
Heritage Energy Operating, LLC
Herman, Theodore E. And Herman, Gladys T.
Hesla Oil Co
Hesla Oil, LLC
Hesla-Sunburst
Hewitt Producing Company
Hewson & Lewis
Hexane Oil, Inc.
Heyting Etal
Hi Line Sixty Six Corp.
Hi-Land Vandael
Hibbard Oil Co
Hibbing-Sunburst Oil Co.
Hickerson Oil
High Crest Oils, Inc.
High Gravity Oil
High Plains Oil Corporation
Highland Oil and Gas, LLC
Highland Oil Co.
Highland Resource
Highlands Montana Corporation
Highline Exploration, Inc.
Hilder Herd Properties LLC
Hill & O'Neil
Hill, Louis W.
Hilldale Colony
Hilldale Hutterite Colony
Hilliard O&G
Himle-Inland Petroleum
Hingham-Hobson Oil Company
Hinman-Rienhoff I
Hinto Energy, LLC
HK Eagle LLC
HNG Oil Company
Hoadlay, W.C.
Hodge-Smith-Hodge
Hodge, T.F. & Assoc
Hodges, A.J. Industries, Inc.
Hoefle, Richard C.
Hoerr & Jenson Corp.
Hofland, James D.
Hogan Oil Etal
Hohn, John
Holden Energy Corporation
Hole Brothers
Hole, B.V.
Hole, S.A.
Holiday, S.L. Etal
Holland American
Holliday, S.L. Etal
Hollingsworth Etal
Holly Sugar Corp.
Holman, C.A.
Holt, Sherman And Vivian
Holten Hi-Line Enterprises, LLC
Home Oil
Home Petroleum Corporation
Homestake Oil & Gas Co.
Hondo Oil And Gas Company
Honolulu Oil Corporation
Hoosier Oil Co.
Hoover & Todorovi
Horse Prairie Oil Co.
Hose-Austin Drilling Corp.
Hose, R.A. Etal
Hoss, Robert L.
Hough & Nepstad
Houston Exploration Company, The
Houston Oil & Minerals Corporation
Hover-Schwartz
Howard & Brickers
Howard, G.G.
Howell Petroleum Corp.
Howell-Field
Hoyt Etal
Hoyt-Montana Co.
HRC Operating, LLC
HS Resources, Inc.
Hubbard, Eldon E.
Huber Corp
Huber Mont Corp
Huber, J.M., Corporation
Huckabay, E Doyle Ltd
Huddle, T.C. Etal
Hudson, R.E.
Hudson, W.T. Etal
Hughes Texas Petroleum, Ltd.
Hughes, D.G.
Hughes, Frank
Hugoton Energy Corporation
Humble Oil & Refining Co.
Humphreys, Buel H
Hungerford
Hunley Etal
Hunt Energy Corporation
Hunt Eugene
Hunt F.E.
Hunt F.H.
Hunt Oil Company
Hunt Petroleum
Hunt Petroleum (AEC), Inc.
Hunt Trust
Hunt, Estate Of H L
Hunt, Lamar
Hunt, Lyda Etal
Hunt, Mark
Hunt, Ray L.
Hunt, William Herbert Trust Estate
Hunter Energy LLC
Huntington Energy, LLC
Huntington Resources, Inc.
Hurd, Gordon
Husky Oil Company
Huso Brothers
Huso Et Al
Hussey, Gordon
Hydra Services LLC
Hyland Oil

I

Idamont Oil Co.
Ideal O&G
Ihli J A
IMC Expl
Impel Energy Corporation
Imperial Craig
Imperial Minerals
Imperial Resources, Inc.
Independent Natural Gas Co.
Indian Oil
Indrex, Inc.
Industrial Energy
Industrial Fuels
Inexco Oil Company
Infinity Oil
Inland Empire
Inland Empire Oil & Gas Syndicate
Inland Petroleum Co.
Inland States Oil
Inman, Charles E.
Integrity Oil & Gas Company
Inter-City Gas Lt
Inter-Mountain States Oil Co.
Inter-Tech Resources, Inc.
Intermountain Leasing, Inc.
Intermountain Operating, Inc.
International Holding Company
International Nuclear Corp.
International Oil Syndicate
Interstate Explorations, LLC
Interstate Oil
Intoil, Inc.
Investestate
Investors Drilling Ventures, Inc.
Investors Drlg Ve
Iofina Natural Gas, Inc.
Iowa Mid-West Expl. Co.
Irex Operating Co.
Isern & Keyes
Isern Brothers
Isern, M.A.
Italo Petroleum Corp. of America
ITR Petroleum (Delaware), Inc.
Iver J. Johannesen
Iverson, C. J.
Iverson, C. J. & Associates

J

J & G Operating
J & W Operating
J H Oil Company (James Hofland)
J P C Corp
J-W Operating Co
J. M. Resources Inc.
J.H.R. Corp.
J.J. Bunkirt Oil & Gas Corp.
Jack Creek Oil
Jack Rabbitt Oil Co.
Jackman, Robert P., Inc.
Jackson Dome Syndicate
Jackson-Scott
Jackson, Frances L.
Jackson, L.B. Etal
Jackson, L.P.
Jackson, M. & Austin, C.W.
Jackson, Miles
Jackson, R.P.
Jadar Resources
Jake Oil, LLC
Jamestown Development Co.
Jansky, Carl
Janssen Gas
Jarvis Etal
Jayhawk Exploration Inc.
Jaysee Drlg Co
JC Wemple LLC
JCL Oil Co
Jedeman, Rudy
Jeffries Oil Trust
Jem Pet
Jensen & Sollars
Jettison, Inc.
JN Exploration & Production Ltd Partnership
Joaquin Oil & Gas Company, Inc.
Jocelyn-Varn Oil
Johannsen Farms, Inc.
John D. Co., The, Inc.
Johns & Hagen
Johnson & Johnson Co.
Johnson Oil
Johnson-Mobley
Johnson-Myers
Johnson, J. E.
Johnson, Arthur & Elvin Sundgren
Johnson, Earl Et Al
Johnson, J.P.
Johnson, J.W.
Johnson, Ray A.
Johnson, S.W.
Johnson, Verne
Johnston Petroleum Corporation
Johnston, E.C. Etal
Johnston, Jack M.
Jones Oil Co.
Jones Petroleum Corp.
Jones, Dick Etal
Jones, Rice & Perkins
Jordan Etal
Jordan Oil & Gas Co
Jordan, R.M.
Jorgensen & Sperry
Josephson, Joe Etal
JPC Corp
Judith Basin Oil Co.
Judith Oil Co
Judith Operating Co.
Juedeman, R.F. Etal
Jungwirth, Francis
Juniper Petroleum Corp.
Jurassic Resources Development NA LLC

K

K2 America Corporation
Kaiser-Francis Oil Company
Kal-Bar Oil
Kal-Montana Oil
Kalamath Oil
Kalberg, Geo. Etal
Kaler, Howard
Kalfax Petroleum Company
Kalispell Oil Co.
Kalispell-Coleman Oil Co.
Kalispell-Craig Syndicate
Kalispell-Niarada Oil Co.
Kalispell-Polson Oil Co.
Kaneb Oil & Gas Company
Kaneb Operating Company, Ltd.
Kansas & Montana Oil & Gas Co.
Karman Ranches LLC
Karsted Operating, LLC
Kasoming Oil Co.
Kassa Oil And Gas, Inc.
Kateley & Drumheller
Kateley & Kemp
Kateley, A.
Kathol Petroleum
Katselas, C.G. LLC
KCS Resources, Inc.
Keener Oil
Keesun Corporation
Keil, G.J.
Kellenberger B J
Keller, Arliss M.
Kelley-Ehr
Kelly Oil and Gas LLC
Kelly, E.L.
Kenai Oil & Gas, Inc.
Kenney, Stephen J.
Kerr-Mcgee Corp
Kerry Petroleum Company, Inc.
Kesun Oil
Kevin Land Co
Kevin Oil & Gas
Kevin-Roberts Oil Co.
Kevin-Sunburst Holding Corp.
Kewanee
Keylon Et Al
Keystone Oil Syndicate
KGH Operating Co.
Kidd Barron
Killion Farms
Kilroy Company Of Texas, Inc.
Kimbark Oil & Gas Company
Kimm, Stanley
Kincheloe, Mavis - Kincheloe Ranch
King Oil Company
King Resources Company
King-Sherwood Oil
King-Stevenson Gas and Oil Co.
King, Michael M.
Kingwood Oil
Kintla Oil Co.
Kipling Energy Incorporated
Kippen Oil & Gas
Kirby Exploration
Kirby Petroleum
Kirby Royalties
Kirby-Vensyn
Kirk Oil
Kirk, Carrol J. Etal
Kirk, T.A. & H.L. Neeb
Kirk, V.M.
Kirkwood, W.C.
Kirkwood, William C.And Wesco Operating, Inc.
Kissinger, Clyde E.
Kissinger, Clyde G.
Kite Cattle Company
Kittendorf, G. A.
Klabzuba Oil & Gas, Inc.
Klabzuba Operating Company
Klamath Oil
Klein, Fred P.
Kluth Etal
Kluth, H.M.
Knaup, Harry J. & Lucille
Knees Production
Knight & Miller Oil
Knight, G. Charles
Knight, Reuben B.
Koch Exploration Company
Koch Industries Inc.
Kodiak Oil & Gas
Kodiak Oil & Gas (USA) Inc.
Koerber, Anton
Kolstad Farms (Allen & Chris Kolstad)
Kornowski, Fred
Kraken Operating, LLC
Kremlin Petroleum
Kronmiller, Bert
Kropp Corporation
Kuhleman, Milton H.
Kullberg & Otthouse, Inc.
Kullberg Oil
Kykuit Resources, LLC
Kyle Etal

L

L & B Oil Co Inc.
L & L Oil, LLC
L C Energy
L.S. Farms, Inc.
La Mar Oil
Lacy, R.
Ladd & Lewis
Ladd Petroleum Corporation
Ladd-Lukowicz
Ladow R E
Laffea Oil
Lake Basin Oil
LaMarsa Corp.
Lammers Etal
Lance Oil and Gas Company
Landes, Todd
Landheim Development Co. Ltd.
Landheim, G. Etal
Langham Petroleum Exploration
Lanouette, Gordon
Lario Oil & Gas Company
Lario Oil and Gas Company
Larsen, Joseph R.
Larslan Water Disposal
Larson & Ness
Larson & White
Larson Drilling Co.
Lasmo Energy Corporation
Last Chance Oil Co.
Latah-Idaho O.& G. Co.
Latham Exploration Company, Inc.
Lauck, George A.
Laurel Oil Co.
Lautt, Vicki L, Richard A Dorn& Wm H Hemmings
Lawler & Hoerr
Lawrence Co.
Lawson-Hanbury Oil Syndicate
Lear Petroleum Exploration, Inc.
Leben Drilling Inc.
Leben, Theodore I.
LeClair Operating
Lee & Associates
Lee Bros
Lee, R.E.
Legacy Reserves Operating LP
Legend Resources, Inc.
Leivestad, Dale LLC
Lerum, Monte and Sharon A. Living Trust, The
Les Terr Farms, A Mt Corp.
Letson, Michael L. & Taylor, Charles H.
Lewis & Clark Co.
Lewis, E.G. Development Co.
Lewistown Oil Etal
Lewmont Drilling
Lexa Oil Corp.
Liberty Gas
Liberty Oil & Gas
Lien, Pete & Son
Liggett J.A. Trust
Lik'em & Slick'em Oil Company
Lilly Et Al
Linco Oil Co.
Lincoln Oil Co
Lindberg Ranch, Inc.
Lindberg, Ralph J. or Anna M.
Liniger, W.W.
Linn Operating Inc.
Linthacum, L.C.
Linville & Smith
Lion Et Al
Lion Oil Producing Co.
Lipman Oil Co.
Liquid Gold Oil
Little Beaver Oil & Gas
Little Rocky Development Co.
Livingston & Courdin Expl. Inc.
Livingston, Eugene
Local Oil
Lockridge, John P.
Logan Corporation
Loma Etal
Lone Mountain Production Co.
Lone Star Montana
Lone Star Producing Co.
Lonewolf Energy, Inc.
Lonewolf Operating, LLC
Loney, Arnold
Longshot Oil, LLC
Longstring Energy Corporation
Lorne Resources, Inc.
Louis Oil Co.
Louisiana Land & Exploration Company, The
Love & Flesch
Love Oil Co Inc.
Lovelace, Frank
Lovelady, I.W.
Lowe, Ralph
Lowrance, Darrell A.
Loy Oil
Lucky Forty Co.
Lucky Seven Oil
Lucky Six
Ludowise & Peterson
Luff Exploration Company
Luhman et al
Lund Et Al
Lustre Oil Company LLC
Lustre Salt Water Disp, Vernon R. Justice Dba
Lybeck, Colin
Lyco Energy Corporation
Lyle-Hawks & Cox
Lyon, John J.
Lytm Company, Inc.

M

M & E Oil
M & K Oil Company
M & M Farms
M H O Drilling
M K M Exploration
M-Tex Oil, LLC
Mac Oil Co. Of Sterling, Inc.
Mack Oil
MacKinney Oil & Drilling Co.
Macklenberg & Minomeyer
Macpet
MacQuest Petroleum Inc
MacQuest Resources,Inc&Macquest Petroleum,Inc
Macum Energy Inc.
Madeline Oil
Madison Oil Co
Madison Resources
Magic City Oil Co.
Maham, W.J.
Maharg Oil Co.
Main Energy, Inc.
Main Realty, Inc.
Majestic Oil
Makalu Oils Ltd.
Makoil, Inc.
Mallard Petroleum
Mallon Oil Company
Malone, Ebert
Malone, Isabelle M.
Man River Oil & Gas Co., Ltd
Manhattan Oil Co
Manifold Mineral & Mining Co.
Manley, John D.
Manning, J.E.
Manning, R.L.
Mansfield-Kevin Syndicate
Manti Operating Co / Manti Resources Inc.
Manuel Corporation
Mapco Production Company
Mapp Exploration, Inc.
Mar-Win Development Co.
Marathon Oil Company
Marena Oil Co.
Marias River Ranches, Inc.
Marias River Syndicate
Marigold Oil Ltd
Marina Oil
Marine Oil Co.
Markland Corporation
Marlea Exploration Ltd.
Marlis Producing Co.
Marmik Oil Company
Marnell Resources Inc.
Marshall & Winston, Inc.
Marshall Jack
Martin Oil Company
Maryland Corporation
Maschera, John
Maser Etal
Massey Oil & Gas
Masterson Etal
Matador Petroleum
Mathews-Hanna Drilling Co.
Matlock Etal
Matthews, Charles
Maverick Oil Co.
Maxus Exploration Company
Maxwell Oil
May Petroleum, Inc.
Mayco Exploration
Mayer, Len
Mayhill Oil
MBA Energy Resources, LLC
Mc Hugh & Associates
McAlester Fuel Co
McBride, W.C. Inc.
McCarthy Etal
McCarthy, Glen
McCarthy, Lawrence J.
McCartney, Clay H.
McClure Etal
McConnel Drilling
McCormick Oil & Gas Company
McCoy Oil
McCracken Etal
McCue Etal.
McCullis Resources Co., Inc.
McCurdy
McCutcheon, G.D.
McCutchin, Jerry J.
McDermid Etal
McDermott, J. Ray
McDonald Etal
McDonough, P.J.
McDougall, E.A.
McDowell Ranches Inc.
McElroy Ranch
McElwain Dev Co
McFarland Energy, Inc.
McFarland, A.H.
McGregor, M.D. Etal
McIntyre, John J.
McKee, E.R.
McKee, Raymond A.
McKee, S.J.
McKenna, J.E.
McKenzie Drilling
McKenzie, D.S.
McKenzie, J.D.
McKnight, Ish
McKnight, William
McLaughlin, C.T.
McLean, John J. And Sons, Inc.
McMahon Bullington Drilling Co.
McMenamin, C.B.
McMinn Operating Company
McMurry, W.N.
McOil Montana One LLC
MCOR Oil And Gas Corporation
McPherson
McPhillips, Beatrice E.
MCR, LLC
McRae & Henry Ltd
McRae Oil
McRae-Dorough Inc.
McShane, C.R.
Mechanical Advantage Inc.
Medallion Oil Company
Medders Oil
Melland, Con
Melton Corp.
Mendell Energy Technologies, Inc.
Meows Oil
Mercury Exploration Co.
Meridian Oil Production Inc.
Merit Energy Company
Merit Energy Corporation
Merland Oil & Gas Inc.
Merrill & Sweet
Merritt, D.
Mertz Energy LLC
Merz, Chas Etal
Mesa Operating Limited Partnership
Metropolitan Petroleum Co.
Metzembaum Syndicate
MGF Oil Corporation
MGPC
MHO Drilling Company
Miami Oil Producers, Inc.
Michener
Michigan-Montana Oil Co.
Michigan-Wisconsin Pipe Line
Mid-American Oil
Mid-Northern Oil Co.
Mid-Rocky Development Co.
Mid-States Oil Co.
Middle Fork Oil
Midland Empire Oil
Midland Oil
Midland Petroleum
Midlands Gas Corp.
Midroc Oil Et Al
Midway Energy, LLC
Midwest
Midwest Oil Corporation
Midwest Refining Co.
Milan, M. C.
Miles City Oil Co.
Miles Jackson, Inc.
Mill City Oil Co.
Miller Exploration Company
Miller, Duncan
Miller, Frank I.
Miller, J. Et Al
Miller, W.-L. Shelley
Mills Oil
Milton Corp.
Mineral Research
Minn-Northern Power Co.
Minnemont Gas & Oil Co.
Minnesota Flatwillow Petroleum Corp.
Minnesota Oil Etal
Minnesota Pet. Co.
Minot-Shelby Oil
Minuteman Exploration, LLC
Minzel, Irvin Etal
Miracle Oil Co.
Misc Oil Co
Mission Oil
Mission Ridge Enterprise
Missoula-Flathead Oil Pools
Missoula-Kevin Oil Co.
Missouri Basin Well Service, Inc.
Missouri River Royalty Corporation
Mitchell Energy Corporation
Mitchell Et Al
Mitchner Etal
MMGL MT I, LLC
Moberly-Pattie-Hannah
Mobil Exploration&Producing North America Inc
Mobil Oil Corp.
Mobil Oil Corporation
Moccasin Trails Farm, Inc.
Model Oils Ltd
Modern Oil Co
MOGO Reagan, LLC
Molen Drilling Co., Inc.
Molt Oil & Gas
Momco Inc.
Mon-Dak Utilities Co. & Fidelity Gas Co.
Mon-O-Co Oil Corp
Monarch Gas Corporation
Monarch Oil & Gas
Moncana Petroleums, Inc.
Moncrief Etal
Mondak Oil Co.
Mondakota Development Company
Monopeg Oil & Gas (Oils, Ltd.)
Monore Co
Monsanto Company And Monsanto Oil Company
Monsanto Lion Oil
Mont Consolidated Gas Co.
Mont Mil Operating Company
Montacal
Montalban Oil & Gas Operations, Inc.
Montalban Oil Etal
Montalta Oil Co
Montana Bell Oil & Gas Co.
Montana Canadian Oil Co.
Montana Central Oil Co.
Montana Cooperative Oil Co.
Montana Corp
Montana Dakota Utilities
Montana Drilling Equip. Co.
Montana Eagle Oil
Montana Energy Company, LLC
Montana Exploration
Montana Gas & Oil
Montana Gas & Petroleum Co.
Montana Gas Co.
Montana Gas Corp.
Montana Giant Oil Co.
Montana Headlight Oil Co.
Montana Heartland LLC
Montana Land & Exploration, Inc.
Montana Land & Mineral Co.
Montana Major Oil
Montana Oil & Gas, LLC
Montana Oil Drilling Syndicate
Montana Oil Field Acquisition I, LLC
Montana Oils & Mines
Montana Pacific
Montana Pacific Oil & Gas Co.
Montana Pioneer Oil Co.
Montana Power Company
Montana Power Gas Company
Montana Reserve Oil Co.
Montana Sunrise Gas Co.
Montana Syndicate
Montana Yellowstone Oil Company
Montana-Portland Company
Montana, B.C., Oil Wells, Ltd.
Montara Petroleum
Montasota Oil & Dev. Co.
Monte Grande Exploration, Inc.
Monterey Exploration
Monterrey Petroleum Corporation
Montex Oil & Gas
Montex Petroleum
Montil Oil Company
Moore Operating
Moorehead, E.T.
Moran, Thomas C.
Morgan & Edwards
Morgan & Johnson
Morgan, J.H. Sr
Morning Star Energy, LLC
MorningStar Operating LLC
Morrill & McNeese
Morris Oil
Morse, R.O.
Morton & Cloutrer
Morton & Shaw
Morton Brothers, Dba
Morton Oil & Refining Co.
Morton, A.W.
Morton, K.C.
Morton, N.C.
Mosbacher Production Co
Mosby Consolidate
Mosby Dome Syndicate
Mosby Oil
Moscow Oil & Exploration Co.
Mountain Chief Oil Company
Mountain Fuel Supply Co And Celsius Energy Co
Mountain Minerals
Mountain Pacific General Inc.
Mountain Petroleum
Mountain States Drilling Co.
Mountain States Oil Co.
Mountain States Petroleum Corp.
Mountain States Resources Inc
Mouse River Oil &Gas
MSC Exploration LP
Muddy Creek Oil Co.
Mueller, C. Lee
Mulcahy, C.H.
Mule Creek Oil
Mull Drilling Co., Inc.
Munger Et Al
Munger-O'Connell
Murex Petroleum Corp.
Murfin Drilling
Murphy Drilling Corporation
Murphy Exploration and Production Co.
Murphy Minerals
Murphy, C.H.
Murphy, H.R. Etal
Murphy, J. M. & Co.
Murphy, Joe
Murphy, Nevel E.
Murray Etal
Murray, Frank
Murray, George H. J.
Musselshell Oil Co., Inc.
Musselshell Valley Oil Co.
Muth, Geo. & Fort P.
Mystique Resources Company

N

Nadean Drlg
Nadeau Brothers
Nadeau, Wilfred
Nadel and Gussman Rockies, LLC
Nagasco Inc
Nairns & Parsons
Nance Petroleum Corporation
Nanton Oil Co.
Napar Oil & Gas Co.
National Associated Pet. Co.
National Exploration Co.
National Oil Company
National Parks Oil Co.
National Refining
Native American Energy Group, Inc.
Natol Petroleum
Natomas North America, Inc.
Natural Energy Corporation
Natural Gas Processing Co.
Natural Resource Management Corporation
Navasota Resources Ltd.
Needmore Oil
Nelson-Sunburst Oil Co.
Nelson, Donel or Patterson, Kristin S.
Nepple, Edward
Nepstad Et Al
Nepstad-Edwards
Nepstad-Vander Vas, & Montgomery
Nepstad, James V
Nepstad, O.A.
Neptune Oil & Gas
Nerdlihc Company Inc.
Nesmont Oil
Neudigate
Neudigate Estate Inc.
Neudigate L C
New Day Oil
New Drilling
New Era Fuel
New Horizon Resources LLC
Newell & Chandler
Newstar Energy USA, Inc.
Newton & McMurray
Nexen Oil & Gas USA, Inc.
NFR Bear Paw Basin, LLC
Nickerson & Nickerson
Nicor Exploration Company
Nielco, Inc.
Nielson & Associates, Inc.
Nielson, Max
Nine Point Energy, LLC
No Bonded Operator
No Jack Oil Co
No. American Royalties, Inc.
Noah Energy, Inc.
Noble Energy, Inc.
Noon, W.A.
Nor-Am Exploration Corporation
Norbeck Company
Norbeck, Peter & George
Norcen Explorer Inc.
Norfolk Energy Inc.
Norman, Guy, Etal.
Norman, W.M.
Norris W.D.I.
Norsworthy & Reger
North American Hydrocarbon Corp.
North American Resources Company
North American Technical Trading Company, Inc.
North Central Oil Corp.
North Central Oil Corporation
North Conrad Syndicate
North Range Exploration, LLC
North West Pipe Line Co.
North West States Utilities
Northern Cheyenne Tribes
Northern Drilling
Northern Michigan Exploration Company
Northern Montana Oil Services Inc
Northern Nat. Gas Dev. Co.
Northern Natural Gas Producing Co.
Northern Oil & Gas Co.
Northern Oil Production, Inc.
Northern Ordinance, Inc.
Northern Pacific Oil & Gas
Northern Petroleum Company
Northern Producing LLC
Northern Pump Company
Northern Star Oil & Refining Co.
Northern States Oil Co.
Northfield Reliance Oil Co.
Northland Oil & Gas Corp.
Northstar Gas Company, Inc.
Northwest Petroleum
Northwest Production Corp.
Northwest States
NorthWestern Corporation
NorthWestern Cut Bank Gas LLC
Northwestern Energy, LLC
Northwestern Improvement Co.
Northwestern Oil Development Co.
Norwegian-American Oil Co.
Norwood, Earl E.
Noyes Et Al
NRC Development, LLC
Nucorp Energy Inc
Nugas Resources (Us) Inc.
Nyhagen & Bell
Nyvatex Montana Corp.
Nyvatex Oil Corporation

O

O M K Petroleum
O'Brien & Joslin
O'Conner & Heringer
O'Connor, F.M.
O'Haire Etal
O'Hanlon-York Etal
O'Hara, E.B.
O'Hare Energy Cororation
O'Keefe Drilling Company
O'Neil Bros.
O'Neil Development Co.
O'Neil, L.B.
O'Neil, Tip Et Al
Oak Oil Co., Ltd.
Oakley & Hays
Oakmont Oil
Oakwood Petroleum Corp.
Oasis Petroleum North America LLC
Occidental Petroleum Corp.
Ocean Energy Resources, Inc.
Ocean Energy, Inc.
Oceanic Oil
Ocelot Oil Corporation
Odessa Natural Corporation
Oh Boy Oil Co.
Ohio Fuel Supply
Ohio Oil Company
Oien Drlg
Oien Oil
Oien, C.T.
Oien, J.A.
Oien, Joe
Oil & Gas Futures
Oil Country Traders
Oil Development Company Of Texas
Oil Drillers Ltd.
Oil Producers Syndicate
Oil Resources Incorporated
Oil Springs Development Corp.
Oklamont Oil
Oliver, Donald M.
Oliver, R.P.
Olsen, R. Todd
Olson-Gish Oil
Olympic Exploration & Production Co
Olympic Petroleum
Omega Oils Ltd
Omimex Canada, Ltd.
Oneil, L B
Oneok Exploration Company
Onstad & Good
Onstad Grain Company
Onstad, C.M.
Onstead & Chebul
Opal Oil Company
Opal Oil Corporation
Opheim Oil & Gas
Orbit Ventures Inc
Orchowski, Joseph
Oregon Flatwillow Development Co.
Oregon-Montana Gas &Oil Co.
Oregon-Montana Oil Co.
Oroco Oil
Orr, Merrit D.
Ortner, George and Linda
Orville-Okangan Oil Co.
Oryx Energy Company
Osborne Oil
Ostland, F.G., Etal.
Outlook Petroleum Corp.
Overseas Petro. Co.
Ovintiv USA Inc.
Owanah Oil & Development Corp.
Owen, K.D.
Oxford Exploration Company
Oxy Petroleum Inc
OXY USA Inc.
Ozark Corp.

P

P & M Petroleum Management
P M K Petroleum
P-M Drilling Company
P&O Oil & Gas Co.
Pace, John W.
Pacer Resources, Inc.
Pacific Enterprises Oil Co.
Pacific Gas Transmission Co.
Pacific National Oils
Pacific Northwest Gas & Oil Co.
Pacific Petroleum
Pacific Western Oil Corp.
Pack Petroleum
Padon Company
Padon, D. A.
Page Petroleum, Inc.
Pahasapa Oil Co
Palmer Oil & Gas Company
Pan American Petroleum
Pan Canadian Oil Co.
Pan Canadian Petroleum Company
Panther Oil Properties, Inc.
Par Oil Company
Pardee K D
Pardee-Inland Emp
Pardue A R
Pardue-Kropp
Park Ohio Energy, Inc.(Poi Engy Inc.)
Park Oil
Parker & Parsley Petroleum Company
Parker, George
Parkinson, E.J.
Parklane Exploration Inc.
PARMT LLC
Parrant, R.G.
Parrent Slim
Parsell, David
Parsell, R. W.
Parsell, R.F.
Parsell, RF Partnership
Parsons, Cory and Danielle
Partee, W.C.
Pass Oils, Ltd.
Pathfinder Petroleum
Patrick Petroleum Corporation Of Michigan
Patriot Farms
Patterson, H.F.
Pattie-Stewart Etal
Pattie, R.L.
Pattison, Kyle C.
Paugh, Gerald W.
Pearson, Anton
Pearson, Gabriel
PEDCO Resources Co.
Peerless Development Co.
Peerless Oil & Gas Co.
Peerless Oil Company
Pel-Tex Pet. Etal
Pelissier Etal
Pelletier, John
Pemaco Oil Co.
Pend Oreille Oil & Gas Company
Pengo Pet Etal
Penn Oil & Devel
Pennaco Energy, Inc.
Pennant Drilling Co.
Pennant Oil Company
Pennock S W
Pennzoil Company
Pennzoil Exploration And Production Company
Penwell, Lewis F.
Peoples Oil & Gas
Perron J W
Perry, Linville, & Smith
Pestal & Kinney Drilling Co.
Peterson & Sorenson
Peterson, M. C.
Petq, Inc.
Petrana Exploration Llc
Petro Productions,Petrotec Production,Inc Dba
Petro-Hunt, LLC
Petro-Lewis Corporation
Petro-Lewis, Ltd.
Petro-Search
Petro-Sentinel LLC
Petrocorp Incorporated.
Petrofunds Inc
Petrolero Corporation
Petroleum Corp Of Texas
Petroleum Corporation Of America
Petroleum Development Corp. of New Mexico
Petroleum Engineering & Management Corp.
Petroleum Exploration Consultants, Inc.
Petroleum Producers & Refiners Corp.
Petroleum Producers Inc
Petroleum Resources Corp.
Petroleum, Inc.
Petroquest Inc
Petrorep, Inc.
PetroSearch Operating Company LLC
Petroshale Energy, LLC
Petrox Petroleum Company
Pfabe & Engleking
Pheister - Grenz
Phillips County Oil & Gas Co.
Phillips Petroleum Company
Phoenix Drlg
Phoenix Energy, Inc.
Phoenix Exploration Group, Inc.
Phoenix Operating LLC
Phoenix Production Co.
Phoenix Resources Company
PIC Production Company, Inc.
Pickens, W C
Piegan Oil Co
Pilot Production
Pine Ridge Oil
Pine W H
Pinnacle Energy Group, LLC
Pinnacle Gas Resources, Inc.
Pinnacle Ranch, Inc.
Pinon Petroleum Corporation
Pintail Petroleum, Inc.
Pioneer Energy Corporation
Pioneer Exploration Co., Inc.
Pioneer Natural Resources USA, Inc.
Pioneer Oil
Pioneer Oil & Gas
Pioneer Production Corp.
Pitch Henry
Pitcock Inc
Pitman Production
Placid Oil Company
Plain Energy USA, LLC
Plains Exploration
Plains Petroleum Operating Co.
Plateau Etal
Platt R C
Platt-Bell
Plotke & Rader
Plotke, G M
Plymouth Oil
Polumbus Corporation, The
Polumbus, E.A.,Jr.
Ponder Oils
Pondera Partners Limited Partnership
Pondera Valley Oi
Pool, Fred Drlg
Poplar Development Syndicate
Poplar Oil
Poplar Resources LLC
Porker Oil
Porker Oil, LLC
Porter Lease Venture,(Joachim Richter,Dba)
Porter Oil Corporation
Porter Sesnon
Porter Sid
Poss Petroleum
Postewait & Van Meer
Poston, H. L.
Potlatch Oil & Gas Co.
Potlatch Oil & Refining Co
Potter Basin O&G
Potter, Peter
Powder Battalion Holdings LLC
Powder River Gas, LLC
Powder River Oil
Power City Oil & Gas Co.
Powers Energy Inc.
Pownal Oil Co.
Poynter, Sam
Prairie Dog Exploration, LLC
Prairie Oil & Gas
Prairie Rose Oil
Premier Petroleum Corp.
Prescott, Gordon H.
Presidio Exploration, Inc.
Prevol & Shay
Prevol, Ed
Pride Energy Company
Prima Exploration, Inc.
Primary Fuels, Inc.
Primary Petroleum Company USA, Inc.
PrimeWest Petroleum, Inc.
Primitive Oil
Probe Oil Company
Produced Water Solutions, Inc.
Producers & Refiners Corp.
Producers Ind. Oil Co.
Producers Oil Co
Professional Pet
Progressive Oil & Gas Trust
Pronghorn Energy Services, Inc
Pronghorn Petroleum Joint Venture
Propel Energy Company
Properties Inc
Prosper Energy Corporation
Provident Energy Of Montana, LLC
Provident Resources Ltd
Provinse David A
Prudential
Pruet, Chesley
Pryde Pond Petrol
PT Energy, LLC
Ptarmigan Lands LP
Pubco Pet Etal
Public Oil & Gas Co.
Puget Sound Petro
Pugsley Ranches, Incorporated
Puirdy & Jones
Puma Petroleum Company
Pure Oil
Pyke Fred Etal
Pyramid

Q

Quadra Oil & Gas, Inc.
Qualls R C Etal
Queen City Oil Co.
Quest Petroleum Corporation
Quicksilver Resources, Inc.
Quigley Drilling Company
Quinoco Petroleum, Inc.
Quintana Petroleum Corporation
Quintana Producti

R

R & A Oil, Inc.
R & B Energy, LLC
R & J Production, Inc.
R & K Drilling, Inc.
R & N Associates,Etal Glen Neubert, Agent
R K Petroleum Corporation
R.C.S. Oil, Inc.
R3 Operating Corporation
Radford Oil Co.
Radiation Exploration Co.
Radigan Bruce
Radigan-Hungerford Co.
Rainbow Oil Co.
Rainbow Resources Inc
Ralston O&G
Ramhorn Energy, LLC
Ramona Oil
Ranch Oil Company, Inc.
Ranck Oil Company, Inc.
Ranger Oil Company
Rankin, George W.
Rankin, Paul
Rapp Oil Corporation
Rapp, R. E.
Raymond Oil
RC Energy Montana Ltd.
Reading & Bates Petroleum Co.
Reagan Ed Etal
Reaser E J
Reasor, G. L.
Record Petroleum Company
Red Deer Sunburst Oils Ltd.
Red River Oil & Gas
Red Rock Oil & Gas
Red Top Oil
Red Willow Great Plains, LLC
Redden, William C. And Remainderman
Redstone Gas Partners, LLC
Redwine Resources, Inc.
Reed Resources Inc.
Reef Oil Corporation
Reeves John A & A
Regal Consolidated Oil Co.
Regal Drilling
Regent Drlg
Regina-Kevin Oil Co.
Regina-Shelby Syndicate
Regine de Parment
Regional Surveys
Reickhoff E O
Remuda Corp Etal
Remuda Energy Development, LLC
Renaissance Resources
Renwar Oil
Reo Oil & Gas Co.
Republic Natural Gas Co.
Republic Oil
Reservation Oil Co.
Reserve Drilling Corporation
Reserve O&G
Reserve Operating Corp.
Resources Capital
Resources Exploration
Retamco Operating, Inc.
Reunion Energy Company
Rice Co., W.E.
Rice Jone & Perki
Rice Oil
Rice-Fulton Development Co.
Rice-Hoffman
Rice-Radigan Oil
Rice, Arleen
Richard & Winnie
Richardson Operating Company
Richey Oil
Richfield Oil
Rickhoff E O
Riddle H K Oroco
Ridge Disposal, LLC
Ridge Oil & Gas, LLC
Ridgeway Oil Exploration & Development, Inc.
Rim Operating, Inc.
Rimrock Colony
Rimrock Oil Company
Rincon Oil & Gas LLC
Ringling R T
Rio Oil
Risco Oil
Ritter, Laber & Associates, Inc.
River Dome Petroleum
Riverdale Oil Co.
Riverton Oil Co.
RME Petroleum Company
Roark, Daniel and Tina
Robert Hawkins, Inc.
Roberts & Son
Roberts Exploration, Wm D And W Mac Roberts
Roberts L-7 Ranch East, LLC
Roberts, Christopher
Roberts, William D. And William M.
Robertson C E
Robertson C T
Robertson R A
Robin Drilling
Robinson Oil Company, LLC
Robinson Resource Development Company, Inc.
Roche L W
Rochester-Anoka
Rock Creek Bench
Rock Creek Oil, Inc.
Rock Hill Oil
Rockin D Farms Inc.
Rocky Mountain Gas, Inc.
Rocky Mountain Oil & Gas Co.
Rocky Mountain Oil & Minerals, Inc.
Rocky Mountain Oilfinders Inc.
Rocky Mountain Operating Co., Inc.
Rocky Mt. Pacific Oil Co.
Roden & McRae Etal
Roemer Oil Company
Rogers Farm, Inc.
Rogge Odillo
Roil Oil Energy
Rokon Mines Ltd E
Roland Oil and Gas
Romans William A
Romar Oil
Romon Production
Roosevelt Disposal
Rose Altamont Oil
Rose Oil Co.
Rosebud Royalty Company
Roseland Oil And Gas, Inc.
Rosetta Resources Operating LP
Rosey Dome Oil
Ross Dwight
Ross Production
Rossmiller Bros
Rossmiller, Duard
Rossmiller, Duard & Elmer Rossmiller
Rothschild Oil Co
Rough Rider Midstream Services LLC
Round Butte Oil & Gas
Round Butte Prod
Roundup Oil & Gas Company
Roundup Resources, Inc.
Rouse & Zajic
Rouse Jack
Rowe, John T.
Rowland Etal
Roxana Drilling Co.
Roxana Oil & Gas
Royal Resources E
Royal-Canadian Oil Co.
Royalty Service Corporation
Ruby Oil Company
Ruby Ridge Oil
Rudi & Associates
Rush Oil Co
Russell Etal
Rutledge Etal
Ryan Ben W
Ryan Oil Company
Ryan William
Ryburn

S

S & J Operating Co
S & L Energy, Inc.C/O John D. Lawrence, Jr.
S & W Petroleum Consultants, Inc.
S Bar B Ranch Company
S. California Aircraft Corp.
Sabo-Johnson
Saco, Town Of
Sadring J E
Sage Creek Colony
Sage Oil Et Al
Sagebrush Resources II, LLC
Sahara
Salmon Resources
Salt Dome Prod
Samedan Oil Corporation
Sampsel William R
Samson Resources Company
Sand Point Oil
Sanders W F
Sandia Operating Corporation
Sands Oil Company
Sands, Caroline Hunt
Sands, Gordon C.
Sannes, Ronald M. Or Margaret Ann
Santa Fe Energy Operating Partners, L. P.
Santa Fe Energy Resources, Inc.
Santa Rita O & G
Saratoga Petroleum, Hiestand, Frank I.Dba
Sauby, Warren
Savant Resources LLC
Sawtooth Oil
Scarab Petroleum Corporation
Scat Drlg
Schagunn, Terry A.
Schermerhorn Oil
Schiff & Jackson Oil Producers
Schleuter Bros
Schmidt, J.W.
Schoonmaker, Geo
Schrock
Schulein, Robert
Schulkamp, A.W.
Schwartz-Kevin Syndicate
Schwartz, C.E.
Schwartz, H.H.
Schwartz, H.H. Jr
Schwartz, Tom A.
Scofield Inc.
Scotland, S.F.
Scott, Robert H.
Scout Energy Management LLC
SDOCO, LLC
Seaboard Oil
Seattle
Seattle Realty
Seattle-Flatwillow Co.
Sebastian Resources
Security Petroleum Corp.
Security Producing Company
Sedezholm, W.C.
Sedgwick, Cranston, & Matthews
Seeligson, A.A.
Select Water Solutions, LLC
Sesnon Porter Etal
Sevels Etal
Sevils Walter Etal
Seymour, James & Lorraine
Sha-Wa Petroleum
Shadco
Shadwell Resources Group, LLC
Shaffer
Shakespeare Oil Co Inc
Shamrock Oil & Gas
Shamrock Ranch Inc.
Shannon Oil
Shar-Alan Oil Co
Sharman George R
Sharp, W.H.
Sharples Oil
Sharples, Philip T.
Shaver Oil
Shay, C.W.
Shay, D.C.
Sheble Ranch, Inc.
Sheehan, William F. Jr.
Sheib & Berkey
Shelbourne Oil Co. Inc.
Sheldon T-McClare
Shell Oil Company
Shell Western E & P Inc.
Shenandoah Oil
Sheridan, L.M.
Shields Valley Syndicate
Shoemaker & Wadle
Shoreline Petroleum
Shoshone Consolidated Oil Co.
Shoshone Oil Co.
Shrake-McKown
Shrock
Shubat-Bosworth
Shuck Oil & Gas LLC
Shupak
Sierra Trading Co
Signal Butte Oil Co.
Signal Drilling & Expl. Co. Inc.
Silver Bow O&G
Silver Fox Oil
Silver Oils
Silvertip Energy, LLC
Simasko Production
Simons, Joseph & Laura Lee
Singer, Wilhelm
Single Tree Disposal, Inc.
Singley Drilling Co.
Six Hundred Oil
Skelly Oil
Skierka Brothers Inc.
Skinner Corp.
Sklar Exploration Company LLC
Slawson Exploration Company Inc
Slohcin, Inc.
Slow Poke Production-George L. Dobson Dba
SM Energy Company
Smith & Bradford
Smith L C Trustee
Smith Perl
Smith Turner & Assoc.
Smith, Arnold
Smith, Bert
Smith, C.L.
Smith, Grant Etal.
Smith, Guy Etal
Smith, James F.
Smith, Loren E. And Foster, Chas. P.
Smith, Lucile
Smith, V.E.
Smith. Earl T. & Associates
Smokey Oil Company, Inc.
Smoky Hill Exploration Company, Inc.
Snake Butte Disposal, Inc.
Snook Etal
Snortland, Leola
Snow Cap Oil Company
Snowden & Brown
Snowden, J.H. Etal
Snyder & Batts
Snyder & Parker
Snyder W W
Snyder, Edwin F.
Snyder, G.W.
Snyder, John
Snyder, Marcus
Snyder, Robert D.
Soap Creek Associates, Inc.
Soape Drilling Co. Inc.
SOC Development
Socony-Mobil Oil
Soderstrom S
SOGC, Inc.
Sohio Petroleum Company
Solar Petroleum, Inc.
Sollars, Robert W.
Solomon Exploration
Solomon Exploration Inc.
Solomon, Clint
Solvang Oil
Somont Oil Company, Inc.
Sonkar, Inc.
Sorenson, Hazel
Sorrell & Alexander
Sorrell Etal
Sorrell, Ray Trustees
Soutag Etal
South Ranch Oil
Southern Minerals
Southern Montana
Southern Oil Syndicate
Southern Union Production Co.
Southland Royalty Company
Southport Exploration, Inc.
Southside Oil & Gas Ltd.
Southwest Gas Producing Co., Inc.
Southwest-States Production, Inc.
Southwestern Energy Production Co.
Spartan Oil Co.
Spartan-Montana Oil Co.
Spectra Energy Corp.
Spectrum Energy, Inc.
Spence Accounts, Inc.
Spence, Ralph
Spencer
Spencer Ranch
Spencer, C.C.
Spencer, Milton
Spindletop Oil
Spindletop Petroleum
Spokalta Petroleum
Spokane Et Al
Spokane-Cat Creek Corp.
Spokane-Wyoming Oil Co.
Sprecher Drilling
Spring & Barrett
Spring Lake Oil P
SpringLine Operating LLC
Spruce Oil Co.
Square Deal Oil Co.
SRI
St Cloud Oil & Gas Co.
St. Croix Operating, Inc.
St. George Oil & Gas Co.
St. Mary Land & Exploration Company
St. Mary Parish Land Company
St. Michael Exploration Co.
Staghorn Energy, LLC
Staley Dome Oil Co.
Stalking Horse Energy, LLC
Staman Exploration & Production Co
Stanhope, Ronald L.
Stanolind Oil & Gas Co.
Stapleton Oil Co.
Starrock Resources Inc.
Startech Energy Corp.
Staten, Jerel M.
States Exploration
States Oil
Statex Petroleum, Inc.
Stealth Energy USA, Inc.
Stearns Oil Company LLC
Steele Creek Production
Stellar Oil & Gas Co.
Stephens & Johnson Operating Company
Stephens Energy Company, LLC
Stephens Petroleum Co.
Stephens, C.W.
Sterling Oil Co.
Stevenson Oil
Stewart Geological, Inc.
Stewart, J.E. Etal
Stewart, Lynn
Stiert James & As
Stivers, Inc.
Stock Bros
Stockman Oil, Inc.
Stone & Wolf Llc
Stone Energy Corporation
Stone Energy, LLC
Stone Pet
Storm Cat Energy (USA) Operating Corporation
Stormwind Sol
Stovall Oil Co
Stratco, Inc.
Strategic Holdings LLC
Stratex Oil and Gas, Inc.
Striper Oil, Inc.
Stroock Leasing Corporation, The
Struthers Oil & Gas Corp.
Stuarco Oil
Sturdevant Oil Co.
Sugar Creek Resources, Inc.
Sumatra Oil Et Al
Summit Gas Resources, Inc.
Summit Resources, Inc.
Summit West Oil, LLC
Summy R K
Sun Coulee, LLC
Sun Exploration And Production Co
Sun Oil Company
Sun River O & G
Sunburst Exploration, Inc.
Sunburst Madison Oil Corp.
Sunburst Oil & Gas Co.
Sunburst Oil & Refining Co.
Sunburst Oil Vent
Sunburst Petroleum
Sunburst Pool
Suncor Energy (Natural Gas) America Inc.
Sundance Corp
Sunray Oil Company, Inc.
Sunrise Production
Sunset International
Superior Oil Company
Suphellen, Andrew
Supreme Gas & Oil
Supron Energy Corp
Sure Shot Oil Co.
Sutlime Oil Co.
SV Limited, A Colorado Limited Partnership
Svare & Hannah
Svare Rolf E
Swaboda-Davis
Swanson Oil & Gas LLC
Swanson Oilfield Services Inc.
Sweeney, Leo
Sweeney, P.T.
Sweetgrass Oil Etal
Swift Current Oil
Swift Energy Co.
Swift Royalty
Sylvester Oil Co.
Synergy Offshore LLC

T

T Bar S Oil, Inc.
T.W.O. (Taylor Well Operating)
T2 Operating Corporation
Taft, George
Talbot, Robert
Tanglewood Oil & Gas, LLC
Tannenberg Oil Company
Tanner-Pruit Exploration
Tanner, G.H.
Taproot Petroleum
TAQA North USA, Inc.
TAQA USA, Inc.
Targe Energy Exploration and Production, LLC
Target Oil
Tarrant R. C.
Taurus Oil Inc.
Taylor & Hoerr
Taylor, B.J.
Taylor, Ike
Taylor, John F. Etal
Taylor, Vernon F.
TDW Gas Processing, LLC
Teague Geological, Inc. A Montana Corporation
Teigan Burks
Tempel Contracting, Inc.
Tempel Farm Inc.
Tempel, Russell E. And Judy L. Tempel
Tenison Drilling
Tenneco Oil Company
Tennessee Montana
Tenspot Oil Syndicate
Terra Resources, Inc.
Terrapet Corp
Terrol Energy Incorporated
Terry, Orlyn
Terry, Orlyn L.
Tesoro Petroleum Corporation
Teters, G.R.
Teton Oil
Texaco Exploration and Production Inc.
Texaco Inc.
Texaco Oils Inc., A Delaware Corp.
Texakoma Exploration & Production LLC
Texas Alberta
Texas Company, The
Texas Crude Oil
Texas Gas Exploration Corporation
Texas General Petroleum
Texas International Oil Company, Inc.
Texas National
Texas Oil & Gas Corp
Texas Pacific Coal & Oil Co.
Texas Production Co.
Texota Oil Company
Thayer, Arthur R.
The California Co.
The Ranch
Thelen & Freeman
Thermopolis-Cat Creek
Thomas Operating Co., Inc.
Thomas Petroleum
Thomas, C.C.
Thomas, Gale
Thomasson Petroleum E&P LLC
Thompson
Thompson Bros
Thompson, C.H.
Thompson, Inc., Richard W.
Thompson, J.C.
Thompson, Otis
Thor Resources USA, LLC
Thorpe & Parrant
Thorpe & Walker
Thorpe & Zimmerman
Thorpe, M.G., Trustee
Thorson & Bull Creek Dome Oil & Dev. Co.
Thorson, Harry T.
Three Forks Oil
Three Forks Resources, LLC
Three-In-One Oil Syndicate
Thunder Hill Exploration, LLC
Thunderbird O & G
Tidemark Petroleum Inc.
Tidewater Oil
Tidewater Oil & Gas Co., LLC
Tierra Petroleum Corp
Tiger Oil Company
Tipperary O & G
Tipperary Oil & Gas Corporation
TOI Operating
Toles Drilling Co.
Toles, M.F.
Tomahawk Oil Company, Inc.
Tomayer, Craig
Tomlinson, C.L.
Tomscheck, Tony
Toney & Hess
Topaz Oil & Gas Inc
Torske Farm, Inc.
Tower, Charles
Towner Petroleum Company
Townsend-Buck-Law
Trail Corp
Trailway Oil
Trans-American
Trans-Missouri G&
Trans-Pecos Resources, Inc
Trans-Texas Energy, Inc.
Transcontinental Oil Corporation
Transitions, Inc.
Traper Oil
Trapp Oil & Gas Co.
Trapp Oil Co.
Trapp Synd
Traverse Oil
Treasure Operating Company, LLC
Treasure State Oil
Treasure State Pool Oil & Gas Co.
Treasure State Syndicate
Trench Oil Co
Trend Resources Limited
Tri Oil-Great No
Tri State Oil Co.
Tri-City Oil
Triangle Oil
Tricentrol United States, Inc.
Trident Drilling Co.
Trigg Exploration Company
Trigg, John H.
Trigood
Trimont Drilling
Trio Petro Inc.
Triple D Lease
Tripple Dome Oil
Triton Oil And Gas Corp.
Trout, Kye Jr
True & Brown
True Oil LLC
Truesdell C W Etal
Tschern Exploration
Tuck, L L
Tudex Petroleums Inc.
Turner Platte O & G Co.
Twin Butte Syndicate
Twin Fields Oil
Twin States Petroleum Co.
Two Hughs O&G
TWO Inc.
TWR, Inc.
TXO Production Corp
Tyler Oil
Tyler Oil Company
Tyner, Keith F

U

U Bee Tea Production LLC
U S Army
U S Dept Of Agriculture
U S Signal Oil & Gas Co.
Uber Operating, LLC
Ubet Oil Company
Ulster Pet Ltd Etal
UMC Petroleum Corporation
Union Oil Company Of California
Union Pacific R.R.
Union Texas Petroleum Corporation
UnionTown Energy Montana LLC
Unit O&G
Unit Petroleum Company
United Gas
United Oil and Refining Co.
United Petroleum & Mining
United Petroleum Co.
United States Energy Corp
United States Energy Corp.
United States Petroleum Co.
United Western Oil & Gas Co.
Universal Gas Co. Ltd.
Universal Resources Corporation
Unknown
Upton Resources U.S.A., Inc.
Ursa Major (Crow OG), LLC
US Bureau of Reclamation
USGS
Utah Southern Oil
Ute-Moe Oil

V

Vaalco Energy (USA), Inc.
Valero Producing Company
Valier-Williams Oil & Gas Co.
Van Dusen Oil
Van Hoesen, C.R.
Van Meer Oil Corp.
Van Norman Oil Etal
Vander Pas, Henry
Vanderbilt Energy
Vanderbilt Energy Corp & Vanderbilt Resources
Vanderpas & Thompson
Vantana Oils Ltd
Vastar Resources, Inc.
Vaughey & Vaughey II
Vaughey & Vaughey, A Copartnership
Vecta Oil & Gas, Ltd.
Veiga, Fred W.
Velk, Rayburn
Ventura Oil
Verstraete, Antonie
Vessels & Bass
Vesta, Inc.
Victory Oil & Gas
Vintage Petroleum, Inc.
Vision Exploration & Production LLC
Voyager Petroleums, Inc.
VSM Development Company

W

W.E. Rice Co.
Waceka Oils, Ltd
Wacker Oil Inc.
Waggoner Exploration
Waggoner Lansford Drilling Co., Inc.
Waggoner, A.P.
Wagner Mose Drill
Wagner-Mallernee-Trott
Wagner, M.R.
Wagner, M.R. Company
Wagoner, M.B.
Wainoco Oil & Gas Company
Wakefield, Earl F.
Walgren, C.E.
Walker Brothers
Walker, Willis L.
Wallace Oil Company
Walmsley, William
Walsh & Watts
Walsh, F.P.
Walter S. Fees, Jr. & Son Oil & Gas LLC
Walters & Ranck
Walton, H.E.
Wampler, Lloyd
Wanken Farms
Wapiti Operating LLC
Warburton, James or Kristi
Ward & Cruise
Warner, Frank A.
Warren & Sons
Warren Aikins Drl
Warren Petroleum
Warren Ranch
Warren Utility Association Inc.
Wasatch Oil
Washington Energy Exploration, Inc.
Washington Oil Fi
Washington&Montan
Watkins, Robert M.
Watkins, Stanley
Watkins, W.B. Etal
Watkins, Wilbur
Watson Etal
Watson Oil
Wavetech Helium, Inc.
Wayne Petrol
WBI Energy Transmission, Inc.
WBI Production, Inc.
Webb Resources, Inc.
Wee Oil
Weil Oil LLC
Weiser-Crosby
Welch & Dwire
Welch Brothers
Welch, A A
Well Done Foundation, Inc.
Well Done Montana LLC
Wells Oil
Wells, Keith J.
Welty, Gene & Wilma
Wenoah Oil Syndicate
Werner, Bruce E.
Wesco Operating, Inc.
Wessely Energy Company
West Dome Oil
West Dome Syndicate
West Gas Inc
West Kevin Comm L
West Virginia Oil
Westates Pet Corp
Westburne Exploration Inc.
Westech Energy Corporation
Western Air Drlg
Western Drlg
Western Hydrocarbons Corp.
Western Interior Energy Inc.
Western Meadowlark Resources LLC
Western Montana Oil Co
Western Natural Gas Company
Western Oil
Western Petroleum Co.
Western Petroleum Exploration
Western Petroleum Oils
Western Petroleum Producers
Western Production Company
Western Reserves, Inc.
Western States Oil & Land Co.
Western Sun Exploration
Westhope Oil Co.
Westport Oil & Gas Company LP
Westrans Petroleum
Wexco Petroleum, Inc.
Wexpro Company
Whaley Oil Co.
Wheatley Etal
Wheatley, Thomas F.
Wheeler, Chas. Etal
Wheir & Kornowsky
Wheless Industries, Inc.
Whetstone
White Oil Co.
White Oil Corp
White Rock Oil & Gas, LLC
White-Fish Syndicate
White, R.C.
Whitehall Western Oil, Ltd.
Whiteley, Stephen Craige
Whitetail O & G Synd.
Whitetop Oil & Gas
Whiting Oil and Gas Corporation
Whiting Petroleum Corp
Whitman-Sunburst
Wichita Industries Inc
Wigen, Christopher
Wigen, Ola
Wiggs, Guy
Wikstrand etal
Wilco Properties
Wilcox Oil
Wildcat Fluid Solutions LLC
Wilde, John
Wildrose United Oil Co
Wilhite & Abrassa
Wilkins, Howard F.
Wilkinson
Williams & Wagner
Williams Exploration Company
Williams Syndicate
Williams, Clayton W., Jr.
Williams, Julius
Willis, W.B.
Williston Basin Exploration Co.
Williston Basin Interstate Pipeline Company
Williston Industrial Supply Corporation
Williston Oil & Gas
Williston Pioneer
Willow Ridge Ranch
Wilson J D Etal
Wind River Hydrocarbons, Inc.
Windbridge Group LLC
Windham South Dakota Oil Co.
Winkler, L.W.
Winn Exploration Co., Inc.
Winnett Drlg Co
Winnett Oil Syndicate
Winnett Pacific Oil Co.
Winther, J.E.
Wireback Etal
Wise Oil Company
Wise William E
Wise, W.G.
Wise, William, F.
Withers, Perry
Wizard Oil
Wold Oil & Gas Company
Wolery, Paul Allen
Wolf Development Co.
Wolf Exploration
Wolfe Brothers
Wood Oil Ltd Etal
Woods Petroleum Corporation
Woods, Pete Or Maxine
Worland Oil
World Oil
Wormy Lime Drilling
Wrather, John
Wrighter, C.N.
Wulf Oil
WY Basin Operating LLC
Wyoming Resources Corporation
Wytana Cattle Co
Wyton Oil & Gas

X

Xavier Oils
Xeno, Inc
Xeric Oil & Gas Corporation
XO Expl
XOIL Inc.
Xplor Energy Corporation
XTO Energy Inc.

Y

Y Z C Inc
Y. V. C., Inc.
Yale Oil Corp
Yandt, Carl
Yates Etal
Yeager Land & Livestock Co., Inc.
Yeager, Bobbi L.
Yeager, C.J. Sr
Yeager, James C.
Yealy, L.J.
Yellowstone Country Club
Yellowstone Nat P
Yellowstone Oil and Gas Company
Yellowstone Oil Co., Inc.
Yellowstone Oil Syndicate
Yellowstone Petroleums, Inc.
York Montana Oil Co.
Young & Critchlow
Young Sanders E&P, LLC
Young, Larry O
Youngblood, J. Lee
Youngblood, L.S.
Yukon Oil

Z

Zama Corporation
Zavanna LLC
Zeiders Bros. Oil & Gas Company, L.L.C.
Zelka Ursulla
Zell, Rawlin
Zenith Oil
Zenith-McDonald
Zephyr Drlg
Ziegler, Kirk
Zimco (Robt A Zimmerman)
Zimmerman Dome Oil Co.
Zimmerman, Brent
Zimmerman, Sid
Zinc City Oil Co.
Zinke & Philipy Inc.
Zion Petroleum
Zodiac Montana, LLC
Zodiac Oil Co.
Zoller & Danneburg Exploration Limited

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3,478 Montanaoil & gas operators

0–9

$20 Bill Syndicate

100805 Exploration USA, Inc.

20 Mile Basin Oil & Refining Co.

240 Acre Syndicate

31 Petroleum Corp.

406 Farms LLC

56 Petroleum Corp.

67 Petroleum Co

79 Oil Company

A

A & G Oil & Gas

A A Oil Corporation

A M 2 Oil

A P Consolidated

A S & P Oil

A-One Petroleum

A. B. Energy LLC

A.B. Singleton, Et Al

A.S. Smith Et Al

A&S Mineral Development Company, LLC

Aakre, Inc.

Abell Oil Co.

Aberdeen Petroleum (USA), Inc.

Aberdeen Resources Corp

Able Oil

Abraxas Petroleum Corporation

Absaroka Oil Development Co.

Ace Oil Company

Ace Rig & Construction Co., Inc.

Ace Syndicate

Ackerman, R J

Ackman-Schulein & Assoc., Ltd.

Adams Company, Inc.

Adams J H

Adams Land Co.

Adams Oil Co.

Adams-Hope

Adams-Latvale

Adanac O. & G. Co.

Adaskavich, Stephen

Adkins Etal

Adlon Oils & Mine

Adobe Resources Corporation (Adobe Division)

Aerolite Oil Co

Aesop Partnership

Aetna Oil Company

Agen Oil Partnership

Agen, J. H.

Aiken, Russell and Corinne

Aikins Drilling Company

Aikman Bros. Corporation

Air Drilling Services

Ajax Oil Co

Al-Aquitaine Exploration

Alane Oils, Ltd.

Albermont Petroleum Ltd.

Alberta Black Coal

Alberta Development Co.

Alberta Pacific Consolidated Oils, Ltd.

Alcoil Expl

Alert Oil Co.

Alexander Syndicate

Alexander, H. F.

Alger, Etal

All Minerals Inc

Allardyce & Wheat

Allardyce, R. L.

Allen Oil Co.

Allen, R.

Alliance Exploration & Production, Inc.

Allied Montana Oil Co.

Allison, B. F., Etal

Allison, Glen

Alme, Henry A.

Aloe's Big Five Oil & Gas Synd.

Alpar Resources

Alpha Petroleum Corp. & James C. Larson, III

Alpine Oil