OGS
Oklahoma Geological Survey

OGS Sections

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Organizational Chart

Nicholas Hayman
Director
Phone: 405.325.7968
Email: hayman@ou.edu
Name
Title
Phone
Email
Joyce Stiehler
Assistant to Director
405.325.1211
Stiehler@ou.edu
Richard Tarver
Data and Collections Manager
405.325.1119
rdtarver@ou.edu
Molly Yunker
Outreach Specialist
405.325.7313
yunker@ou.edu
Jacob Walter
State Seismologist and Director of the Seismic Network
405.325.8497
jwalter@ou.edu