Promigas has initiated international arbitration proceedings against Peru through the World Bank’s Investment Dispute Settlement Centre (ICSID).
The Colombian gas distributor alleges that a recent 32% cut to gas tariffs threatens the viability of approximately US$335 million in network investments made by its Peruvian unit.
The filing marks a significant escalation in the dispute over energy pricing and regulatory stability in the Andean nation.
The move underscores growing tensions between foreign energy investors and Latin American governments seeking to lower utility costs.
By taking the case to an international tribunal, Promigas is signaling that domestic legal remedies are insufficient to protect its capital base.
This development adds to a broader pattern of regulatory friction in the region, where state interventions in pricing are increasingly met with legal challenges from multinational operators.