N1 or Esso

In Canada we had Esso

In Iceland there was Esso, at least when I first got here. Then one day things changed. All the Esso's became N1.

N1????

What does that stand for anyways?

Are there Esso's in Canada, or did they change to N1???

Actually, my favorite thing with the old Esso's in Iceland is how the stores were call Neste - but they did not sell Ice Tea!!

I was confused.