Edward L. Doheny prices were high. The Mexican Petroleum Company was the largest in Mexico, and Mexico was the largest oil producer in the world. In 1922 Albert B. Fall, U.S. Secretary of the Interior, leased the oil field at Elk Hills, California, to the Pan American Petroleum & Transport Company. Around the same time, the Teapot Dome Field in Wyoming was leased to Sinclair Consolidated Oil Corporation. Both oilfields were part of the US Navy's petroleum reserves. Neither lease was subject to competitive bidding. In 1924 rumors about corruption in the deals escalated into the Teapot Dome scandal. Doheny's reputation was somewhat
Oil shale in Estonia (now district of Kiviõli) formed around the mine owned by Eesti Küttejõud. In 1924, the British investor-owned Estonian Oil Development Syndicate Ltd. (later Vanamõisa Oilfields Ltd.) purchased an open-pit mine in Vanamõisa and opened a shale oil extraction plant that was abandoned in 1931 due to technical problems. The Swedish–Norwegian consortium Eestimaa Õlikonsortsium (, ), controlled by Marcus Wallenberg, was founded in Sillamäe in 1926. New Consolidated Gold Fields Ltd. of the United Kingdom built a shale oil extraction plant at Kohtla-Nõmme in 1931. This facility continued to operate until 1961. In 1934, Eesti Kiviõli and New Consolidated Gold Fields