Government looks to promote competition and transparency.
Brazilian lawyer Paulo Valois, an oil and gas industry specialist, gives BNamericas his view on the main hurdles the country's federal and state governments will need to clear on the path to opening up the nation's natural gas market.
Authorities report that more than 12 companies are interested in running the facility.
The power trading company says consumers are being drawn to the deregulated market by lower prices as higher rainfall boosts hydroelectricity while a recession erodes demand.
Pampa now holds a 90.4% stake in Petrobras Argentina, which holds assets across the oil and gas and electric power value chains.
Since the US began exporting LNG in early 2016, it has overtaken Trinidad and Tobago as Chile's principal supplier of the commodity.
The majority of exports are going to North America, according to the head of the country's biofuels chamber.