More than 5000km2 in Hawke's Bay is on the table for oil and gas exploration.

Energy Minister Judith Collins expects oil and gas exploration activity will return.

BP New Zealand is selling down part of its holding in the nation's only oil refinery operator, NZ Refining.

New Zealand's petrol companies are weary of change to customs excise law.

US crude approached US$47 a barrel as Saudi Arabia pared some of its production cuts.

Opec and its partners have seen the rally in oil prices evaporate as the US inventory glut becomes impossible to ignore.

New Zealand Oil & Gas plans to return $100 million of the $168m it reaped on the sale of its stake in the Kupe oil and gas fields.

Meridian Energy wants to raise $150 million through a new listed bond to refinance an upcoming debt maturity and cover general business costs.

Z Energy's decision to hold its annual meeting over the internet has drawn flak from the New Zealand Shareholders Association.

New Zealand Oil & Gas narrowed its loss in the final six months of 2016 ahead of the Kupe sale.

New Zealand Refining's annual profit sank 69 per cent from a record a year earlier.

Cheap oil and a wet spring kept wholesale prices low, offsetting better retail margins.

New Zealand Oil & Gas is in talks with prospective partners for the deepwater Barque prospect off Oamaru's coast.

Mercury NZ increased first-half profit 53 per cent, bolstered by favourable North Island hydro conditions and lifted its full year guidance.

New Zealand Oil & Gas, which is on the prowl for new investment opportunities, has sold its 27.5 per cent stake in the Tui oil fields.

Emergency services closed off part of a busy road in Mangere, South Auckland, after a gas main was ruptured by a digger.

Opus International Consultants sank into the red as a struggling oil and gas sector weighed on the engineering firm's Canadian business.

Genesis Energy, the country's largest energy company by customer numbers, says electricity retail connections fell by 1.2 per cent.

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

Caltex will take over Gull's 77 petrol stations across New Zealand.

BP has agreed its second huge deal in days with the energy giant revealing a near $1 billion investment in gas fields off Northwest Africa.

NZOG made its final pitch to shareholders to sign off the sale of its stake in the Kupe oil and gas field to Genesis Energy for $168 million.

The New Zealand dollar extended its decline after this week's Federal Reserve decision to hike interest rates.

The dollar fell after the Federal Reserve raised its benchmark interest rate and signalled a faster pace of hikes in 2017.

New Zealand Oil & Gas says it's considering an offer to buy its 27.5 per cent interest in the Tui oilfield.

New Zealand Oil & Gas says it's considering an offer to buy its 27.5 per cent interest in the Tui oil field.

The New Zealand dollar was little changed against the US dollar and reached its highest level this year against the yen.

The AA is advising motorists to shop around for petrol as more oil-producing nations slash production.

The New Zealand dollar gained along with other commodity-linked currencies.

Billing disputes are the main issue for utility customers but the number of those complaining about disconnections is growing.