The country claimed the US court system did not have jurisdiction over a lawsuit by a former shareholder of YPF that has taken legal action over the 2012 renationalization of the NOC.
Rocío Nahle said that NOC Pemex would operate in a free market with private sector companies.
The new rule allows smaller additions of biodiesel to diesel.
Subsidiaries of the construction conglomerate are prohibited to participate in Petrobras bidding since 2014
Mexichem Reaches an Agreement with Pemex for the Acquisition of PPQ Cadena Productiva, S.L. share in Petroquímica Mexicana de Vinilo