The energy ministry says that a new resolution opens the door to renewed gas exports to Chile.
Some on the left who are close to López Obrador would like energy to be left out of the revamped free trade deal being negotiated with the US and Canada.
However, the Chinese company is still awaiting a decision from Chile's economic prosecutor FNE to decide whether its acquisition of a 24% stake in the Chilean company can go ahead.
The Dutch oil, gas and chemicals storage company says that economic and political turmoil in the South American country dragged down its second quarter earnings.
Scheduled stoppage for the Esmeraldas Refinery will take place in March 2019
Bolivia negotiates with Hinove Agrociencia of Brazil the sale of 300,000 tons of urea