The Lander and Salt Creek oil fields, Wyoming
Woodruff, Elmer Grant,1872-
Wegemann, Carroll Harvey,1879-
Washington : Government Printing Office,
1911
Includes index
Contents: The Lander oil field, Fremont County/by E.G. Woodruff.- The Salt Creek oil field, Natrona County/by C.H. Wegemann
Petroleum
Petroleum