Member Information

Michael Dillon Hockley

Montrose Chemical Corporation of California

10839 King Street
Overland Park, KS66210

Michael Hockley is President of Montrose Chemical Corporation of California. Before retiring in 2023 from the practice of law, he was a partner in the Environmental and Energy Law practice of Spencer Fane LLP for 34 years. Mike's practice concentrated on litigation, environmental law, and renewable energy, with an emphasis on environmental litigation, permitting, and enforcement proceedings. In addition to representing individual clients in hazardous waste, Clean Air Act, and multi-media enforcement and permitting proceedings, he has chaired and served as group counsel for Superfund site steering committees and served as a mediator in complex multi-party litigation. Mike also serves as the Civilian Aide to the Secretary of the Army for Kansas (East). He can be reached at

Work Phone:

EPA Region:
Region 7 - (IA, KS, MO, and NE)
Regent status:
Regent 2021
Year of induction:
B.S. -U.S. Military Academy (1973) J.D. - University of Nebraska College of Law (1980) The U.S. Army Judge Advocate General's School - Basic Course in Military Law (1980) and Graduate Degree in Military Law (1985)
Nebraska, 1980 (inactive) Missouri, 1989 Kansas, 1990
Court Admissions:
Nebraska S. Ct.; Missouri S. Ct.; Kansas S. Ct.; U.S. District Court for the Districts of Nebraska, Western Missouri, and Kansas; U.S. Court of Appeals for the 8th Circuit
Professional Societies and Organizations:
American Bar Association, Section of Litigation and Section of Environment, Energy, and Resources Overland Park, Kansas Chamber of Commerce Greater Kansas City Chamber of Commerce Overland Park Rotary Club Command & General Staff College Foundation Civilian Aide to the Secretary of the Army for Kansas (East)
Other Environmental Career Experience:
Certified Mediator