Interior Office of Inspector General
John Matussak has extensive experience in auditing and regulatory compliance, currently serving as Deputy Director and Supervisory Auditor at the Interior Office of Inspector General since May 2016. Prior to this role, John worked as a Senior Auditor at the Office of Natural Resources Revenue, focusing on oil and gas regulatory compliance and commodity valuation from June 2010 to May 2016. Earlier in their career, John gained experience as a Marketing Intern at Hilti, where responsibilities included supporting product management and organizing training workshops. John holds a Master of Business Administration in Finance and Energy, as well as a Bachelor of Business Administration in International Business and Accounting, both from the University of Oklahoma. Additionally, John studied at Technische Hochschule Augsburg in 2006.
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Interior Office of Inspector General
Regulating energy development; conserving land and water resources; protecting wildlife; conducting scientific research; preserving national parks, monuments, and heritage areas; and addressing American Indian concerns. These diverse activities and more are the responsibility of the U.S. Department of the Interior (DOI). The mission of the Office of Inspector General (OIG) is to provide independent oversight and promote excellence, integrity, and accountability within the programs, operations, and management of the U.S. Department of the Interior. We are a highly motivated organization of about 265 employees conducting independent oversight and responding in the best interest of American taxpayers to ensure that DOI earns the public’s trust. We are alert to waste, fraud, and mismanagement, whether expressed as administrative waste or criminal activity, and we use a range of audit and investigative tools to ensure that the Secretary of the Interior, Congress, and the public are informed when changes to DOI programs become necessary to achieve this goal. References to non-Federal entities or people ≠ endorsement by the U.S. Government.