The market expects annual inflation to hit two per cent, for the first time since 2011.

Keep an eye on your local petrol pump. Prices shouldn't be rising soon, thanks to an oil price slump.

Energy Minister Judith Collins says a fuel price inquiry will assess whether New Zealand petrol companies are raking in more profits than international counterparts.

Air New Zealand faces a steep drop in full year profit but says tailwinds including strong tourism and flattening competition will help the company.

A global travel industry leader says air fares may have reached low point and flattening capacity and rising oil prices will see them stabilise.

Energy Minister Judith Collins expects fuel companies will cooperate with report into petrol pricing after concerns about rising fuel margins.

New Zealand inflation is set to move up into the Reserve Bank's 1 to 3 per cent range, but economists don't see it racing away just yet.

The national price of 91 petrol has topped $2 per litre, but with some stations still charging lower prices it pays to shop around.

New Zealand retail sales rose in the third quarter, led by increased spending on vehicles and fuel.

Motorists and most aspiring vehicle owners are expected to benefit from an increasingly competitive car business, diving petrol prices and falling levies.

Z Energy is warning it's facing a potential multi-million dollar bill from NZ Customs - backdated to 1986.

Iran, once OPEC's second-biggest producer, will boost its oil exports by 500,000 barrels a day immediately after sanctions are lifted

Government spends up to 20 times more money on wooing oil and gas companies to New Zealand than it does on promoting renewable energy, newly released figures show.

BP New Zealand generated its smallest earnings in more than a decade due to falling oil prices.

The Commerce Commission has indicated a timeframe on when it expects to make a decision the acquisition.

Kiwis can now use a beer byproduct to fill their cars, with a new biofuel being unveiled at an Auckland service station today.

Airline profits are expected to almost double this year to US$29.3 billion - amounting to US$8.27 per passenger carried.

The boss of a Z Energy rival says its planned acquisition of Caltex operator Chevron NZ could impact competition in the fuel market.

A new report claims to have disproved a well established urban myth that petrol companies are quick to raise petrol prices, but slow to drop them when prices fall.

What people want from transport is to get from A to B as quickly, safely and cheaply as possible.

The price of oil is tumbling again, rattling an already-shaken oil industry and heralding lower prices for consumers.

Retailers are continuing to benefit from the boost to consumers' discretionary incomes from the fall in oil prices over the past year.

The results for the six months to December 2014 has been fairly lacklustre, with one notable exception, Brian Gaynor writes.

Virgin Australia is tipped to benefit more from fuel savings in the year's second half after reporting a sharp upturn in its latest trading update.

The golden run of cheaper petrol could be at an end with prices at the pump increasing for the first time in four months, AA says.

The falling petrol price has been a boon for the great Kiwi summer road trip but more big price drops look unlikely in the short term, says the AA.

Qantas will cut fuel surcharges but will replace them with higher base charges as the airline tries to improve margins.

The Automobile Association has called for a ministerial inquiry into the cost of fuel as an informal survey found variations of up to $1.34 at different sites around the country.

The price of petrol keeps plunging but the savings are yet to ignite discounts for consumers elsewhere in the economy.