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

KiwiSaver is a fantastic long-term superannuation scheme but it has one major drawback: limited domestic investment opportunities.

Windflow Technology widened its first-half loss and said it needs new injections of capital.

Vector acquired HRV and solar power firm PowerSmart for undisclosed sums.

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

Dutch researchers have found that electronic energy meters can be wildly inaccurate.

Elon Musk just wagered he could solve Australia's looming energy crisis.

Todd Corp deputy chairman Malcolm Whyte has retired after 30 years as a director of the holding company for New Zealand's wealthiest

A grant from the Heartland Fund has helped the latest Kawhia beach cleanup. But, an ownership review of King Country Energy could mean the future of the community fund is at risk. Made with Funding from NZ On Air

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.

New Zealand's power system will need some "modest investment" to shore up the security of supply.

The S&P/NZX 50 Index dropped 18.68 points, or 0.3 per cent, to 7148.78.

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

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

Vector's gain was driven by stronger sales, lower finance costs and a one-time gain after a Court of Appeal ruling on a tax claim.

A solar powered electric vehicle charger is opened to the public in Tauranga and will provide free charging for the next year.

A2 Milk stock falls as firm's CEO and chair sell shares.

The local bottler of Coke-branded drinks ramped up sales volumes in 2016.

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

Businesses in a small Northland town lost tens of thousands of dollars in revenue after a power cut lasted up to 54 hours.

Chinese companies are big winners in the competition among foreign bidders for stakes in Abu Dhabi's largest oil concession.

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.

Contact Energy shareholders can expect an increase in annual dividend policy later in the current financial year.

COMMENT: Boardroom conversation is an art form for some and a learned skill for others.

Contact Energy posted a 12 per cent gain in first-half underlying profit and trimmed capital expenditure in the face of weaker sales.

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

Infrastructure investor Infratil is still upbeat about its investment in US renewable energy despite Donald Trump's promise to boost coal.

Contact Energy, which last year said it would focus on reducing debt, is considering a $100 million offer of bonds it plans to list on the NZX debt market.

Mercury Energy boss Fraser Whineray is trying to make customers feel better about the power they buy.

New Zealand's relatively flat demand for electricity continues to weigh on the electricity companies.