Not that this should be newsworthy, but 91 petrol at Z in Manukau is $2.35\L, easily the cheapest I’ve seen in a long long time. You can use the Z app (sharetank) to prebuy petrol at this rate and use it when prices inevitably go up.
Not sure if pricing error or maybe the start of good things to come…
My local is $231.9 (Frankton, Hamilton). Not too familiar with Sharetank so don't know if that's good or not.