Watch: Seven Sharp goes on the hunt for NZ's cheapest petrol

Fuel has never been more expensive, and we're all feeling it in the back pocket.

Now, some Kiwi battlers are trying to undercut the big guys while saving you cash.

The family-owned company Waitomo Group has been delivering fuel to farms and businesses for over 70 years, and now they're expanding, with 30 no-frills retail sites already set up between between the Bay of Islands and Foxton.

To find out more about the little company saving you lots, click on the video above.