Original oil and gas trade magazine vintage ad for REFINERY ENGINEERING COMPANY, of Tulsa, OK. TRECO, The First 100 Years are the Hardest. Designs, engineers and constructs petrochemical plants for the production of everything from A to X or Acetaldehyde to Xylene. A division of Vitro Corporation of America. This unique 1959 old petroleum refining process equipment magazine advertisement would display beautifully matted and framed. 1 page.