All of Mexico`s Pemex stations are government owned or franchised. They carry Magna (regular unleaded), Premium (high octane unleaded) and Diesel. All the Pemex stations are full service! You don’t need to pump your own gas or wash the windshield, just let the attendant know which gas you want and how much.
The market is now opening up to allow other gas stations to sell gasoline, with Shell being the first company to break the monopoly.