Scanned Wireline (Electrical) log for well 15-145-00539, the Louis L. Steffen 'B' 1 by Lario Oil and Gas Co., located in Pawnee County. Log is Radioactivity Log by Welex, logged on 1963-03-20 from 3350 to 4343 feet. Well is located at T. 20 S, R. 20 W, sec. 29, spot: C NE SW