Just in case anyone has missed this post in the main EOS forum posts, This link is an official Govt. site and is in English. By selecting the criteria in the drop down boxes, it will direct you to petrol stations in the area / town of your choice and give the address etc. It's an excellent site and it is possible to view our Urb, the photos of which are more up to date than Google earth. You can also select the Cadastral overlay which shows your plot No.(for those that are interested).
Here's the link:- http://geoportal.mityc.es/hidrocarburos/eess/# ust copy paste into your browser.