Mr. Heenan represents mines, manufacturers and other companies with respect to safety compliance and governmental approval and certification issues. He represents companies before the Department of Labor, the Occupational Safety and Health Administration, the National Institutes of Occupational Safety and Health, the Mine Safety and Health Administration, and related adjudicatory bodies.

Michael Heenan is a much published author of books and articles. His books include MSHA, The Mine Operator and the Law (MineWorks Media, 2003); Safety and Health at Mines, A Manual for Operators and Contractors (Advanstar, 1999) and Understanding MSHA (McGraw Hill, 1981). He is also a contributing author to various books and treatises including Occupational Safety and Health Law Handbook (Government Institutes, 2001); Mine Health and Safety Management (SME, 2001); New York Environmental Law Manual (RIA, 1996); Workplace Safety and Health (Clark Boardman, 1995); Kentucky Mineral Law Manual (Banks Baldwin, 1995) and Coal Law and Regulation (Matthew Bender, 1983). He is a regular speaker before trade, professional and safety organizations around the country. He is also Legal Editor of the trade journal Pit & Quarry.

After serving as a Lieutenant in the U.S. Navy, Michael Heenan entered federal legal service in 1971. He became involved with mining laws and safety and health requirements as a trial attorney with the U.S. Department of the Interior. He joined Ogletree Deakins after twenty-two years with the firm of Heenan, Althen & Roles, which he co-founded.

With a law practice that is focused on federal law, Mr. Heenan represents clients throughout the United States. He has been lead counsel in numerous precedent setting cases. He is a trustee of the Energy and Mineral Law Foundation and he is on the Council of Counsel of the National Stone Sand and Gravel Association. He is listed in Who's Who in American Law.