PETROLEUM /OIL & GAS
Contact NameCompany NamePhoneExpertise
Vince Ames Consulting Petroleum Geologist 406-446-1745 50 yrs diversified experience in oil exploration and production-still not quite over the hill; mostly MT, ND, SD, WY.
Frank Cahoon Consultant 915-683-8637 Permian Basin History
Douglas Clark EXODUS, Inc. 406-656-7393
Roy Clement Clement Consulting, Inc. 406-698-9246 Wellsite Geology
Lester Clutter Joshi Technologies International, Inc. 918-492-6577 MT, ND, SD, OK, TX, Libya, Offshore North Sea, Trinidad, Venezuela
Wayne Freisatz Sunburst Consulting, Inc. 406-245-4124 Wellsite Geology, Regulatory Representation (Oil and Gas)
Larry Geisler Consultant 406-256-6353 Petrophysics
Gene George Gene R. George & Assoc., Inc. 307-265-9199 Petroleum Geology, Stratigraphy, Prospect Generation, Mineral Evaluation, Production Evaluation
John Gillespie Sunburst Consulting, Inc. 406-670-0540 Wellsite Geology
Melvin Glerup Consulting geologist 303-517-1253 Development and Exploration Rocky Mountain Area
William Goodridge Good Ridge Resources, Inc. 406-256-6312 Alberta, British Columbia, Saskatchewan, Montana
John Graham Consultant 406-252-2892 Williston Basin Prospect Generation and Evaluation
Gary Hughes Hughes Exploration, Inc. 406-248-8566 Montana, Wyoming
Kay Jones Discovery Energy, Inc. 406-652-4505 Petroleum Geology, Northern Rocky Mountain States
Dale King Consultant 406-797-8116 Stratigraphy and structural interpretation for exploration/development of shallow gas sands in Northern Rockies
Cooper Land Consultant 501-538-4836
Duncan McBane Energy Consultants LLC 406-247-8719 Northern Rockies
Keith Mohl Independent Geologist 406-656-4818 Exploration Geology
Lawrence Monson GeoMon Consulting 406-650-7038 Petroleum Geology, GIS Mapping, Mineralogy, Geochemistry
Leon Neuens Consultant 406-945-0238 Wellsite Geologist - MT, ND, SD, WY; Drilling Consultant - MT
Earl Norwood Consultant 406-252-9661 Petroleum - Montana and North Dakota
James Ray Petrotechnical Resource Alaska 907-943-5015 Wellsite: Alaska, Overthrust (Montana, Wyoming, Utah), Williston Basin
Dennis Rehrig Consultant 406-656-4785 All Facets of Geological Oil and Gas Consulting
Jackson Riley Riley Wellsite 406-780-0627 Wellsite Geologist specialized in Rocky Mountain horizontal drilling projects
Robert Schalla Cove Creek Resources, Inc. 406-294-3525 Oil and Gas; Northern Rockies; Exploration, Property Evaluation, Expert Witness Testimony
Delbert Schneider Pason Systems, USA Corp. 406-756-8311 Wellsite geology, Geosteering
Gary Splittberger Splittberger Consulting 406-259-2228 Wellsite Geology - Northern Rockies and Williston Basin
Jim Suydam Sunburst Consulting, Inc. 406-860-1228 Petrology-clastic & carbonate rocks, sedimentation, basin analysis, wellsite exper. - Williston Basin, UT, and NV.
John Warne Consulting Geologist 406-252-3170 Oil and Gas Exploration - Rocky Mountains

GEOPHYSICS
Contact NameCompany NamePhoneExpertise
Eric Johnson Johnson Geophysical 406-255-0805 Seismic interpretation and integration with structural geology
John Koski Koski Consulting Corp. 406-248-9392 Petroleum Geophysical Consulting
Curtis Link MT Tech Dept of Geophysical Eng. 406-496-4165 Shallow Geophysics, Neural Networks
Debra Miller D. K. Miller Exploration, Inc. 406-256-5111 Geophysical Interpretation, 2D-3D Seismic Design & Planning, Acquisition and Processing Supervision

GENERAL GEOLOGY
Contact NameCompany NamePhoneExpertise
Karen Brown Energy Strategies and Solutions LLC 303-467-9200 Geology Education/Policy/Outreach
Debra Hanneman Whitehall Geogroup, Inc. 406-287-5408 Continental Sequence Stratigraphy, Paleosols, Digital Database/Mapping
Lawrence Jones Rocky Mountain College 406-657-1108 Clastic Sedimentology, Stratigraphy, Geomorphology, River Processes, Core Description
Daniel Vice Penn State Univ. - Hazleton Campus 570-450-3510 Surface Geochemistry, Remote Sensing

ENVIRONMENTAL /HYDROGEOLOGY
Contact NameCompany NamePhoneExpertise
David Fishbaugh Brown and Caldwell 406-294-7160 Environmental Engineering
Scott Krauszer ATC Associates, Inc. 406-259-1033 Environmental Consulting and Engineering
James McGill Independent Consultant 406-259-6309 Hydrogeology
Greg Vick Geoscience 406-697-8113 Engineering Geology, Groundwater, Envirionmental, Geotechnical Engineering

HARD ROCK /MINING
Contact NameCompany NamePhoneExpertise
Ennis Geraghty Consultant 406-322-5405 Structural Geology, Underground Mining Geology, Laramide Tectonics of Central Montana
James Gruber Consultant 406-962-3249 Resource Evaluation and Permitting on Public Lands - Hardrock, Oil and Gas, Coal, Mineral Materials
Henry Reed Consultant 406-245-8880 Industrial Minerals, Aggregates, and Coal
Russell Warchola Consultant 406-861-2798 Geologist - Records Research, Land Title Work - Uranium and Hard Rock Minerals

LAND
Contact NameCompany NamePhoneExpertise
John Fredlund Zone Exploration, Inc. 406-259-5106 Land Titles, Leasing, Contracts, Prospects
Russell Warchola Consultant 406-861-2798 Geologist - Records Research, Land Title Work - Uranium and Hard Rock Minerals

Disclaimer: The geological consultant listings provided on this site by the Montana Geological Society are offered as a service to the Society’s membership. The persons listed below are active members of the Society that have indicated that they are available on a consulting basis. Information provided herein was supplied by the consultant and has not been checked or verified by the MGS. This listing does not in any way constitute a referral or endorsement by the Montana Geological Society or any approved or authorized referral service. Persons contracting with any of these individuals are encouraged to independently verify the consultant’s qualifications.