Treadwell Wharf in the Summerland, California Oil Field: The First Sea Wells in Petroleum Exploration,
Documentary, Archaeological, and Radiocarbon Evidence of Protohistoric Petroleum Production in Pennsylvania,
Petroleum Mining in NW Pennsylvania,
Exploring for Petroleum in the Flatlands: History of Oil and Gas Exploration in Kansas,
Abraham Gesner (1797-1864) A Petroleum Pioneer,
Comments on E.W. Shippen\’s Pennsylvania “Oil Days” Manuscript, 1860-1865,
The Oil Business in Pennsylvania, 1860-1865 (As Recalled in Later Years),
Evans Wallis Shippen, Early Pennsylvania Oil Producer,