The Colombian group posted January-June net income of 814bn pesos (US$269mn), a 6.2% jump on the year-ago period.
The goal is to establish the planning guidelines for the energy transmission market.
Promigas CEO Eric Flesch says there is still uncertainty over the final destination of imported gas and how stakeholders will be remunerated.
Almost half will be in infrastructure, according to the bank.
A list of the five largest combined cycle plants that will come online in Mexico in the next year.
Slated for the port of Buenaventura, the country's second LNG import facility would ease escalating electricity supply concerns, a Bogotá-based consultant told BNamericas.
Of the region's 9.2GW of solar capacity under construction or development, 3.80GW are in Chile, while Mexico is home to 2.74GW, Brazil 1.28GW and Argentina 655MW, according to BNamericas data.