Audax Private Equity-owned, fuel and lubricant distributor RelaDyne has acquired Arizona-based New West Oil Company.

Cincinnati-based RelaDyne has completed the purchase of fuel, lubricant and environmental services provider New West. New West is the exclusive distributor for Valvoline and Petro-Canada in key metro areas of Arizona and Nevada.

Audax Private Equity focuses on buying and growing middle market businesses in the consumer, healthcare, technology and business services industries. Matrix Capital Markets Group provided merger and acquisition advisory services to New West.