There are many smaller regional stores as well, so be sure to check the entire list of eligible merchants here. (rewardexpert.com)
Eligible merchants for the 3 % bonus categories (2 % Bonus Cash Back on top of the 1 % Base Cash Back) include: (a) groceries (representing grocery stores / supermarkets, freezer / meat provisioner, miscellaneous food stores, bakeries, and candy / nut / confection stores); (b) Dining (representing eating place restaurants, bars, lounges and fast food restaurants); (c) Gas (representing service stations and automated fuel dispensers). (bankofthewest.com)
For conditions and restrictions that apply to cashback rewards and a full list of codes associated with eligible merchants, refer to the Cardholder's Guide [PDF]. (nbc.ca)