A Few Words About Us

Started in 1978, Commonwealth Oil Corporation was founded by President, Fred Herdman. In January 2012, Commonwealth Oil was acquired by Wallover Oil, a leading manufacturer of Metalworking Fluids & Industrial Lubricants. Commonwealth Oil is headquartered in Harrow, Ontario- a small rural community, centrally located in the heartland of industrial North America, south of Detroit, Michigan.

Commonwealth Oil blends and sells high performance metalworking & specialty fluids to a broad range of industrial sectors throughout the United States, Canada, Mexico, Central America, United Kingdom, India and Taiwan. We take great pride in being registered to the ISO 9001:2015 Quality Standard.

Why Choose Us?

We are a leading supplier to the Aerospace, Screw Machine, Tube & Pipe, and Electric Discharge Machining (EDM) sectors.

Continuous Research & Development is conducted in our laboratory facilities with full time product development chemists and support staff. The main focus of Commonwealth Oil’s Research & Development relates to health & safety, reducing our environmental impact, as well as continuously improving the performance benefits of our products.

We are an official sponsor and fluid supplier to the McMaster Manufacturing Research Institute (MMRI), a leading industrial manufacturing research center, located at McMaster University in Hamilton, Ontario, as well as the Ford Centre for Excellence in Manufacturing at St. Clair College in Windsor, Ontario. Many equipment manufacturers purchase or specify our fluid products to ensure their equipment performs to maximum capability.