One of New Zealand's smallest fuel companies is pointing to competition as an explanation for price disparities.  

The Commerce Commission has asked fuel companies to explain why significant differences exist within cities and between regions.  

Waitomo Group Owner Jimmy Ormsby says some pricing in the market is hard to justify.  

He told Mike Hosking that he doesn't expect the disparity to last long.  

Ormsby says some markets are too competitive and that won't last, while others don't have enough competition and will be forced to by regulators. 

LISTEN ABOVE