Comodoro Rivadavia, in the province of Chubut, with 173.000 inhabitants is the city with the largest population on the Patagonic coast. There are many oil wells in the area and there is also significant fishing and financial activity. Also, there is a substantial metalwork industry serving the oil extraction activity and other mineral exploitations. Comodoro Rivadavia is connected north, south and west of Patagonia, where it connects with Puerto Aisén and Puerto Chacabuco in Chile. The airport serves domestic and regional flights, with several daily flights to Buenos Aires and other destinations. There is a free zone in the port area.