Tractor Supply Blue and white bags. Premium Hardwood Pellets. Pretty crappy. They put out a good amount of heat but they are producing incredible amounts of ash. The fire pot was filled to the edge in a matter of just a few hours. Ash everywhere in the stove after I cleaned it. Shame because they are only $5.19/bag.
At my local TSC most of the time they have crappy odd ball pellets in some generic type bag. Last year and the year before that's all they had but this year luckily they have Somersets for $199 a ton OTD. This is a first but my buddy who talked me into a pellet stove said he bought Sets at TSC about 6 years ago and that was the only other time they had good pellets.
The last two pre-season orders to save money at TSC they wanted you to buy them not knowing what they were getting in. No way would I buy and pay in full not knowing.
The only shot you have at figuring out what they are in the blue is to do the UPC code like Bogie suggested. Maybe take a pic of a bag and post so someone else might recognize them and know but the UPC will tell you.
Sometimes you get lucky where they re-bag good pellets into another name or bag so it is worth checking out. Pellet shopping and hunting almost becomes a full time sport. LOL!