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Perfection Oil Co., Inc. is a Dubuque, IA-based company in the Energy & Utilities sector.
W.H. Thomas Oil Company is a Clanton, AL-based company in the Energy and Utilities sector.
Bauer Concrete is a Campbell, CA-based company in the Energy and Utilities sector.
Thiozen is a company that has developed a new process to generate low cost and low emission hydrogen from sour gases.