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Director's Office

Director and State Geologist

Tom Drean 

Tom Drean, WSGS Director and State GeologistThe Wyoming State Geological Survey is a Separate Operating Agency under the executive branch of state government (W.S. 9-2-801, 9-2-803 through 9-2-810). The Geological Survey's purposes are:

(1) to study, examine, and understand the geology, mineral resources, and physical features of the state

(2) to prepare, publish, and distribute (free or for sale) reports and maps of the state's geology, mineral resources, and physical features

(3) to provide information, advice, and services related to the geology, mineral resources, and physical features of the state.

The agency's stated mission is to promote the beneficial and environmentally sound use of Wyoming's vast geologic, mineral, and energy resources while helping protect the public from geologic hazards. By providing accurate information and expanding knowledge through the application of geologic principles, the Geological Survey contributes to the economic growth of the state and improves the quality of life of Wyoming's residents.

The Geological Survey has an advisory board that helps formulate and direct agency policies and programs. The board consists of the governor, a University of Wyoming member appointed by the university president, the State Oil and Gas Supervisor, the State Geologist and five appointed members.

In addition, the State Geologist serves as a commissioner on the Wyoming Oil and Gas Conservation Commission (W.S. 30-5-103) and as a board member of the Wyoming Board of Professional Geologists (W.S. 33-41-107). Director Drean also serves as a member of the Wyoming Consensus Revenue Estimating Group (CREG) and as a member of the Enhanced Oil Recovery Institute (EORI) Commission, at the University of Wyoming.


Advisory Board

Notice: Upcoming Advisory Board Meeting

The Wyoming State Geological Survey Advisory Board will hold its next quarterly meeting at 9 a.m., Thursday, March 16th, 2017 at the Oil and Gas Commission Building in Casper. For information, please contact Bridget McGuire at (307) 766-2286 Ext. 254.

Matt Mead—(Governor) State of Wyoming
Mark Watson—(Supervisor)  Wyoming Oil and Gas Conservation Commission
Dr. Erin Campbell-Stone—(Professor of Geology) University of Wyoming
Tom Drean—(State Geologist) Wyoming State Geological Survey


R. Terry Leigh—Green River, Wyoming (President)
Lisa Lindemann—Cheyenne, Wyoming
Stephen Shire—Evansville, Wyoming
JoAnn True—Casper, Wyoming
F. David Searle—Sheridan, Wyoming

Additional Information:

WSGS Brochure
WSGS Annual Report - FY2016
WSGS Strategic Plan