Petroleum. Wyoming Oil brings prosperity to Gillette, Wyoming and Sinclair Oil Co. RMN Ag 10, 1969 p.8-12 Oil boom changes face of Gillette - 2nd in series. RMN Ag 11, 1969 p.8,10 Black gold brings prosperity - last of a series on Gillette. RMN Ag 12, 1969 p.8 Fifty years of production in the muddy formation in the Powder River Basin. In Wyoming v.1 #3 Winter 1968 p.14- 15,38-39
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