Biographies – Missouri Basin and Arkansas-Rio Grande-Texas Gulf Regions Leadership

Welcome to the Missouri Basin and Arkansas-Rio Grande-Texas Gulf Regions Biographies home page, providing biographical information on the leadership of the Missouri Basin and Arkansas-Rio Grande-Texas Gulf Regions.

Regional Leadership

Brent Esplin – Regional Director

Marlon Duke – Deputy Regional Director

Sita Egan – Special Assistant

Tanya Guerechit – Budget

Shane Schieck – Infrastructure & Engineering Program Manager

Vacant – Native American Affairs

Brandon Hilliard – Power

Ed Tucker – Property

Tara Kinsey – Resource Services

Gary Barsness – Safety and Occupational Health

 

Area Leadership

Scott Hettinger – Dakotas Area Manager

Jeff Rieker – Eastern Colorado Area Manager

Ryan Newman – Montana Area Manager

Aaron Thompson – Nebraska Kansas Area Manager

Travis Buttelman – Oklahoma Texas Area Manager

Lyle D. Myler – Wyoming Area Manager

 

DOI Unified Services

Bandon Collins – Acquisitions

Sara Novak – Equal Employment

Roxanne Morrissey – Financial Manager

Tanya Klawikowski – Human Resources Program Manager

Michelle Toogood – IT

Tyler Johnson – Public Affairs Officer

Last Updated: 3/30/26