Calla J. Hackler

Calla J. Hackler is a Sr. Corporate Counsel at Select Energy Services, where they conduct internal audits and manage regulatory agency relationships. With previous experience as an Attorney at Hewlett Law, PLLC/Hackler Law PLLC, they specialized in civil litigation and business transactions. Calla holds a Doctor of Law (J.D.) from Oklahoma City University School of Law and a Bachelor of Arts (BA) from Northwestern Oklahoma State University.