Contest website with details of prizing and how to enter based on gas purchases:

https://www.irvingwin.com/

There are also weekly gift card draws for $100 Irving gift cards from online entries.

NPN Entry method (limit 1 npn entry per person per day) as shown in Rule 4 :
https://www.irvingwin.com/module/IRV196/doc/rules.pdf

Must be an Air Miles member and legal resident residing in one of the four Atlantic provinces indicated.