Comodoro Rivadavia (kōmōħōˈrō rēväħaˈvyä) [key], city (1991 pop. 124,151), Chubut prov., S Argentina, on the Gulf of San Jorge, an inlet of the Atlantic Ocean. The major center of oil production in Argentina, it is connected by a 1,100-mi (1,770-km) pipeline with Buenos Aires. A government-owned corporation runs the oil wells.
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