further expanded its operations globally during the 1970s.

Similar to other oil companies during the 1970s energy crisis, initially caused by the 1973-1974 Arab oil embargo, Conoco's operations were negatively impacted and so in 1981, Conoco then the ninth-largest American oil company at the time, was embroiled in one of the most expensive corporate takeovers in U.S. history when the Mobil Corporation and Seagram