QUILLAN HARRIS

EVP of Engineering


Quillan is a 3rd generation oil and gas professional. Born in Denver, he moved to Midland with his family in the early 1990s.

Quillan holds a Bachelor of Science Degree in Architectural Engineering from the University of Texas at Austin, a Master’s in Petroleum Engineering from the University of Houston, and an MS in Finance from Georgetown University.

Before joining Fortress, he was a Vice President at a middle market PE firm, and prior to that led the technical group for OGX Operating and Santa Elena Minerals; EnCap sponsored entities with $1.5 Bn in cumulative equity commitments.

Quillan has had roles of increasing responsibility in production and completions engineering in the Permian and Rockies, and reservoir engineering for offshore Angola and the Kurdish region of Iraq, including an in-country reservoir engineering supervisory role for Marathon’s first discovery in Kurdistan.

Quillan and his wife, Beth, have three children and are active members of their church and community.