Jeff Stack is a seasoned professional in operations and production reliability, currently serving as Operations Turnaround Supervisor at HF Sinclair since March 2022. Prior to this role, Jeff Stack accumulated extensive experience at HollyFrontier over nearly two decades, holding various positions including Production Reliability Supervisor for the Fluid Catalytic Cracking (FCC) unit, Process Safety Coordinator, Training Specialist, and Subject Matter Expert in FCC. Jeff Stack began his career at HollyFrontier as an Operator in the FCC unit. Educationally, Jeff Stack earned a Bachelor of Science degree in Organizational Behavior Studies from Colorado Technical University between 2017 and 2019, after studying at New Mexico State University from 1998 to 2000.
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