Energy & Environmental Services, Inc. engages in blending, manufacturing, and packaging custom liquids and solid chemicals for the oil, gas, and agricultural industries. The company is headquartered in Oklahoma City, Oklahoma. The company went IPO on 2001-06-21. The firm also has products under development using enzyme technologies for animal feed supplements, organic fertilizers, and odor solutions. The Company’s operations are maintained through its wholly owned subsidiaries: Enduro-Tech Energy Services, Inc. (Enduro-Tech), Enduro-Bond Manufacturing Company, LLC (EMC), EcoZyme System Technologies, LLC (EST), and Patriot Chemicals & Services, LLC (Patriot).