While under Pfingsten's ownership, Hy-Bon Engineering Company was a global manufacturer of customized vapor recovery units and replacement parts and provider of related field and emissions testing services for the oil production, biogas, and industrial markets. Products included customized vapor recovery units with a variety of compressor styles for storage tanks, production facilities, and oil fields both on and offshore. The company sold its products and services to international oil and gas companies. Hy-Bon was headquartered in Midland, Texas. Pfingsten sold its interest in the business in February 2014.