Z Energy shares fell after a government report into fuel prices found areas of concern.

Other markets don't fare so well after fall in oil price.

The service station chain has more than tripled its annual profit after acquiring Chevron.

The New Zealand Shareholders' Association lobbied Z Energy to reverse its proposal.

COMMENT: Individual shareholders have drawn the short straw in NZ, writes Brian Gaynor.

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

Z Energy hopes its bio-diesel plant which uses animal fat to make fuel will be operational within the next two months after delays last year.

Z Energy may review its interim distribution policy after reducing debt levels ahead of schedule following its acquisition of Chevron New Zealand's Caltex and Challenge! brands.

Broker a bit surprised to see Air NZ shares slip but notes light volumes.

Z Energy takes out top honour at the Deloitte Top 200 business awards.

Z Energy chief executive has been named the winner of this year's Deloitte Top 200 Chief Executive of the Year Award.

The winners of the 2016 Deloitte Top 200 Awards were celebrated at a black tie event this evening with Z Energy winning big.

WATCH: Meet the finalists of this year's Deloitte Top 200 Company of the Year Award.

Profit rose to $82 million in the six months ended September 30, from $67m a year earlier.

COMMENT: When only 19 shareholders turned up to Z's annual general meeting it became clear AGMs were over, writes Debra Blackett.

Motorists face higher costs as petrol edges up in response to higher global oil prices although prices could fall quickly due to weak demand.

Z Energy is moving away from supermarket docket discounts to instant savings for Fly Buys members.

The Super Fund has made more than $1 billion from its investment in the energy company.

The company said earnings had been impacted by the settlement of its dispute with Customs.

Z Energy is allowed to buy Caltex and Challenge! petrol stations, but must sell 19 of its retail sites.

WATCH: The future is here - see a Tesla S drive along Auckland's Motorway without the driver's hands on the steering wheel.

Z Energy pumps more than two billion litres of fuel a year but is now getting into the business of rapidly shifting electrons into cars.

A growing demand for black market cigarettes is believed to be the driving force behind a streak of violent robberies in Auckland.

Air New Zealand is buying electric vehicles for its ground fleet in a move that will boost the EV sector in this country.

Prices slashed for a second time this week with another tipped for tomorrow.

New Zealand-owned fuel company Z Energy has apologised to a small group of "Z Card" business customers for accidentally overcharging.

Fuel company Z says it has built New Zealand's first commercial-scale biodiesel plant, at Wiri, for $26 million.

Z Energy says committing to using biofuel is one way people can contribute to the global effort to reduce climate change outlined in the Paris Agreement.

Mike Bennetts has driven Z Energy since its inception and this year has been a particularly strong one for shareholders.