Submitted by mhabich
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Arauca Department is a department of Colombia located in the extreme north of the Orinoco Basin of Colombia (the Llanos Orientales), bordering Venezuela. The southern boundary of Arauca is formed by the Casanare and Meta Rivers, separating Arauca from the departments of Casanare and Vichada. To the west, Arauca borders the department of Boyacá. The Caño Limón oil fields located within Arauca account for almost a third of the Colombian oil output. Its capital is the town of Arauca.