Petroleum. Colorado Bureau of mines hopes to salvage oil in worked out Colorado fields. Post My 16 1947 p.28 Knous deplores lost oil revenue News Je 12 '47 p.11 State A.F.L. condemns assembly for skipping oil severance tax. News Je 17 '1947 p.18 Southeastern Colorado oil campaign fades. Post Je 25 '47 p.18 Empire seen as oil center. Post Jl 16 '47 p.5 Oil fever runs high in Colorado. News Jl 27 '47 p.19
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