My neighbour works for Hoya who have the Shell contract out of Stanlow. I asked him a while back about who supplied who as he's worked for the Supermarket suppliers in the past too. The original question on here was did V power have a Shelf life? Found the reply I posted on here.
" Standard fuel (he pointed out) can be six weeks old or older by the time it's been refined abroad, shipped to the U.K., stored in a depot somewhere and then delivered to the Supermarkets.
V Power shelf life he was a bit stumped by. He's not heard of this before but he's not one to comment until he knows the facts so he said he'd go and check this out. He delivers V Power every day so he should be able to get some info.
I also remembered to ask him about which fuel the Supermarkets receive.
Asda, Morrisons and Tescos all buy fuel refined abroad. Off the tanker and into storage. It all meets the standard but does not have additives of say Shell fuel refined in the UK.
Sainsburys fuel is refined over here and BP have the contract at present to supply them. Again it does not have the same additives as branded fuel.
Tesco Espress is refined in the UK. Esso have the contract to supply the fuel. Again with non of the additives.
Told me a load more but I was starting to nod off at this point"
I'll ask him about Morrisons next time I see him.
For what it's worth he only ever uses branded fuel in his own car. He has issues with how contamination is dealt with elsewhere