Used oil collection and sales are the foundation for Westco&＃039;s business. Westco&＃039;s management and staff have over 20 years of experience in the waste oil industry, so you can be assured that your business is safe in our hands. Our chief priority is that our environmental, health and safety not only comply with federal, state and local regulations but also reflect the social economic and environmental expectations of our communities and customers. Each day we are committed to protecting the environment operating safely, producing quality products and improving overall performance.