As the Prime Minister said, "It makes no sense to be calling for emissions restrictions on one hand while subsidising emissions on the other."

A cartoon circulating on Twitter carries a warning for the oil industry.

Fight over who pays for the clean-up of a heavily contaminated area of Auckland's Wynyard Quarter will go all the way to the Supreme Court.

The world is running out of storage facilities supplies of oil and may soon exhaust tanker space, raising the chances of a plunge in crude prices.

Oil may be king of the commodities, but its physical form is tough to come by.

The 46 countries that have at least one sovereign wealth fund have largely set them up for a rainy day.

NZOG declared today a 34.7 percent increase in "developed reserves" at the Kupe oil and gas field.

The Auckland Council intends to hold a debate and a vote on whether to oppose exploratory oil drilling in an area of seabed off the west coast.

At Bergen harbour, there's a forlorn look about the oil service ships tied up bow to stern.

Norway's Statoil is exploring for oil around New Zealand. Herald reporter Grant Bradley headed north to find out why they've come all this way.

Mobil is taking its $10m tank farm pollution fight all the way to the Supreme Court.

Partially completed buildings stand during construction this month at the Williston Apartments luxury development in Williston, North Dakota.

The recent rally in Z shares convinced Infratil and the Super Fund that it was time to sell.

High levels of pollution are being emitted by diesel vehicles built by a range of carmakers other than Volkswagen, it has been reported.

Infratil will book a profit of $392m on the sale of its remaining 20pc stake in Z Energy.

The oil and gas sector is heading into one of the quietest summers for years, with permits surrendered and smaller players gobbled up by bigger companies.

Oil prices rose for a second straight day after the European Central Bank indicated more stimulus could be on its way for the eurozone.

Russia's energy pivot toward Asia faces its sternest test next month when Vladimir Putin visits Beijing amid slumping oil prices and concerns over China's economic slowdown.

Publicly-owned Waterfront Auckland has won $10m from oil giant Mobil to pay for a cleanup of part of the Wynyard Quarter.

The US crude benchmark finishing below $US40 a barrel for the first time in six years on China's weakening economy.

Solid Energy acting chairman Andy Coupe admitted it was "unlikely" that any sale, or sales, would cover its outstanding debt.

Genesis Energy announced its last two coal-burning electricity generators at Huntly Power Station will be shut down.

Mr Key said Solid Energy had $300 million of outstanding debt and was in a "precarious position".

New Zealand Oil & Gas says exploration drilling of the Barque prospect in the Canterbury Basin, which has the potential to be the nation's biggest-ever hydrocarbon discovery, is expected to start in 2017.

The world's big energy groups have shelved US$200 billion ($298 billion) of spending on new projects in an urgent round of cost-cutting to protect dividends as the oil price slumps for a second time this year.

Iran, once OPEC's second-biggest producer, will boost its oil exports by 500,000 barrels a day immediately after sanctions are lifted

Government spends up to 20 times more money on wooing oil and gas companies to New Zealand than it does on promoting renewable energy, newly released figures show.

The New Zealand Middle East Business Council says they are monitoring "the potential of opening up of trade with Iran".