Gas Atacama Pipeline

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Summary Information

  • Source: Noroeste, Northern Argentina
  • Destination: Mejillones, Chile
  • Ownership: Gas Atacama
  • Website:
  • Length: 946 kilometres (588 miles)
  • Capacity: 200-250 MMscfd
  • Status: Operating


  • The 946-km (588-mile), 20-inch pipeline runs from the * Noroeste gas producing basin in northern Argentina to a new 710-MW, natural gas fueled power plant in Mejillones, Chile. The pipeline transports high-pressure gas across the Andes Mountains, connecting Argentina‚Äôs gas markets with northern Chile at a rate of 200-250 MMscfd.
  • The GasAtacama Pipeline has a diameter of 20 inches


  • 1998 - A consortium of Willbros, Victor Contreras, Contreras Hermanos, and Pamar was awarded a contract to construct the easternmost portion of the Atacama Gas Pipeline
  • 199 - The pipeline was put into commercial service

Other Information

  • The lack of sufficient available natural gas in Argentina has led to the construction of the Mejillones Lng Import Terminal as an alternative supply


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