Energy Minister Megan Woods says the Government will be keeping a "watchful eye" on petrol companies to ensure prices at the pump go down as oil prices plummet.
And her boss, Prime Minister Jacinda Ardern, has issued a warning to petrol companies.
"I would like those companies to remember the consumers that they're meant to be serving."
This comes as oil prices continue to plummet after Opec and Russia were unable to reach an agreement on production as the economic impact of coronavirus continues to hit markets.
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Oil prices fell as much as 30 per cent yesterday morning when the markets opened – the biggest single-day fall since the start of the Iraq war in 1991.