The original process fell through after proposals did not fulfill bidding requirements.
Nuevo León and Jalisco states have applied to the country's energy regulator for permission to use ethanol to oxygenate gasoline and improve air quality.
Crisis-stricken Venezuela agrees to pay back US$3.15bn over the next decade with minimal repayments in the first six years, officials said on Wednesday.
The hydrocarbons commission will launch a tender this week after the one launched in October was declared void on November 6.
With the aim of maintaining tighter control over "social tariffs," the government is demanding all energy distributors feed rate information into a national database.
Maintenance impacts pre-salt production for the Brazilian energy giant.