This is the most current list of authorized Eni Agip gas Stations (sorted by province) that accept NATO fuel coupons. This list is updated annually.
How to open / use the .zip list: Download the file, unpack it and open the .xml file with Excel (default) or with an online tool like Google Sheets. Excel Web Application is also available on the web free of charge. You just need a Microsoft account to actually use it. You can use the “data filter” tool to sort the list by Locality or Province.