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Black and white photograph of the Standard Oil Refinery, Wyoming. More information on the history of this refinery and the industry can be found here: https://www.wyohistory.org/encyclopedia/refining-wyomings-oil-120-years

Black and white photograph of the Standard Oil Refinery, Wyoming. More information on the history of this refinery and the industry can be found here: https://www.wyohistory.org/encyclopedia/refining-wyomings-oil-120-years

Black and white photograph of the Standard Oil Refinery, Wyoming. More information on the history of this refinery and the industry can be found here: https://www.wyohistory.org/encyclopedia/refining-wyomings-oil-120-years

Black and white photograph of the Standard Oil Refinery, Wyoming. More information on the history of this refinery and the industry can be found here: https://www.wyohistory.org/encyclopedia/refining-wyomings-oil-120-years