BP and Z are both claiming to have led the market in reducing their national price for 91-octane petrol to a smidgeon below $2 a litre this morning.

Russia's economic crisis deepened as the Govt acknowledged it's heading for recession and "panic" crept into the financial system as oil prices plunged.

Z Energy is the latest company to jump on the big data trend, doing a deal with analytics company 11 Ants Analytics to help the service station firm better understand customer preferences and buying....

Billionaire wildcatter Harold Hamm, a founding father of the United States shale oil boom whose fortune has fallen by more than half in the past three months, says US drilling will slow as producers....

The world is in the grip of a new oil shock. The shock is that prices are collapsing. Liam Dann explains what it means for the NZ economy.

Falling oil prices have been one of the biggest stories in financial circles over recent weeks.

Plunging oil prices are saving airlines US$7 billion ($8.9 billion) this year on jet fuel - and the leader of one of the big three airline alliances says this is helping profitability in an industry....

New Zealand shares fell yesterday, paced by Meridian Energy, Contact Energy and Mighty River Power as some investors looked to crystallise recent gains.

A company has been fined after associates of the firm traded shares of Z Energy and other companies during the holding period following IPO's.

Z Energy boss Mike Bennetts says the return of $2 a litre petrol could be on the cards if oil prices continue to plummet.

A secretive group of the world's most powerful oil ministers will soon gather in Vienna to take one of the most important decisions to affect the still fragile world economy.

Oil and gas explorers gathering in Auckland next week are breathing a sigh of relief at the election result but face the age-old challenge - making a major discovery.

Oil companies are forging ahead with a plan to import more fuels to minimise disruption from planned strike action at NZ's only oil refinery.

Saudi Arabia will need to keep cutting oil output to sustain prices above $100 a barrel as global oil demand weakens, analysts say.

The European Union will strike at the heart of Russia's economy by extending sanctions to block all investment in the country's oil companies.

Despite all the talk of action against Vladimir Putin, Exxon Mobil, the largest US energy company is undeterred, starting work on $700m oil well in the Arctic.

Energy companies are taking their controversial fracking operations from the land to the sea - to deep waters off the US, South American and African coasts.

A "small number" of BP New Zealand's trucks have been recalled for inspection following an incident in Australia in which three people died.

Oil prices in New York have tumbled to their lowest level since mid-March helped by unplanned refinery shutdowns in the US midwest.

Ireland finally struck offshore oil, or so it seemed in 2012. But two years on, the company behind the find still hasn't found a partner to develop the oil field.

The Green Party is angry that the Government forked out $22,000 on food and drink and $37,000 on luxury accommodation.

Energy Minister Simon Bridges is defending a $240,000 bill for taxpayers to wine and dine 11 oil executives during the 2011 Rugby World Cup.

The Green Party announced plans to immediately ban deep sea drilling around NZ’s coast if the Greens form the next government.

Z Energy says margins have risen due to fuel retailers trying to recoup up to $40m they've had to pay to top up losses at Marsden Point oil refinery.

Fierce discounting by fuel companies in parts of Auckland has seen a wild variation in prices — of up to 25c a litre of petrol — across the region.

A company owned by the Gloriavale Christian Community expects to drill a new oil well this spring with a rig that has recently arrived from Korea.

The US will remain the world's biggest oil producer this year after overtaking Saudi Arabia and Russia as extraction of energy from shale rock spurs the nation's economic recovery.