Oil! oil museums in Kern County, California and the libraries and museums in the area around Silver City, New Mexico, as well as the period photography, which played a large part in shaping his screenplay and the film. Oil! Oil! is a novel by Upton Sinclair, first published in 1926–27 and told as a third-person narrative, with only the opening pages written in the first person. The book was written in the context of the Harding administration's Teapot Dome Scandal and takes place in Southern California. It is a social and political satire skewering the human foibles of all its characters.
Oil shale in Estonia Kiviter processing technology. Along with the shale oil extraction plant, an oil shale research laboratory was founded in 1921. Following the experimental retorts, the first commercial shale oil plant was put into operation on 24 December 1924. The German-owned company Eesti Kiviõli (, , predecessor of Kiviõli Keemiatööstus), affiliated with G. Scheel & Co. and Mendelssohn & Co., was established in 1922. By the end of the 1930s, it had become the largest shale oil producer in Estonia. Around the company's mine and oil plant, the Kiviõli settlement (now town) was formed in the same way as the Küttejõu settlement