Australian-based Cue Energy Resources is returning to the New Zealand sharemarket.

Almost 40,000 Mercury Energy customers will pay much more for gas from next month.

Electricity company TrustPower has been fined $17,000 for failing to give customers adequate information about low user tariff options.

State-owned power company Genesis Energy has reported a full year loss of $136 million after writing down by $183 million the value of its Huntly power station.

Horizon Energy directors are recommending shareholders reject Marlborough Lines' partial takeover offer.

Air NZ chief executive Rob Fyfe has lashed out at dithering over cutting emissions, described climate talks as a 'bureaucratic circus'.