NSW faces biggest test of the summer, with soaring temperatures set to bring "catastrophic" fire conditions to some areas.

Victoria and NSW have been warned they could follow South Australia in being hit by electricity blackouts in years ahead unless Canberra comes up with a bipartisan national plan to deal with energy and climate change.

A little over a decade after it lost hundreds of millions of dollars on an ill-judged foray into New Zealand, energy utility AGL is again planning to expand abroad, although it is tight lipped on details.

NSW faces potential power shortages during the coming heatwave, prompting the electricity market operator to demand additional supply.

Rising wholesale power prices have helped energy utility AGL lift earnings and dividends

Oil advanced after government data showed that US gasoline supplies unexpectedly fell.

Oil dropped to the lowest in more than two weeks amid estimates that US crude and gasoline inventories continue to climb.

Investors are betting big that OPEC's cuts are real.

It is rare to find much unanimity among economists, but one of the few things they agree on is that the trough in commodity prices of 2016 will not be repeated. The question for now is how far will prices retreat, especially following the March quarter, which often marks a cyclical high.

You don't want to be on the wrong end of a short call by Kevin Kaiser of Hedgeye Risk Management.

Shares in Downer EDI soared to a seven-year high on Thursday morning after the contractor lifted its full-year profit forecast following a lack of any bad news in its December-half earnings.

Urth Energy, which billed itself as a "boutique" energy retailer focusing on solar energy systems, has appointed an external administrator.

Crude futures rallied late in New York's day, after briefly trading lower on an earlier, bearish US government report.

A Queensland researcher has identified the kind of people most likely to install solar panels on their homes, and it was not the latte-sipping, inner-city greenies of political lore.

Energy giant lodges its long-delayed application to develop the controversial Narrabri coal seam gas project.

OPEC's oil output is set to fall by more than 1 million barrels a day in January, a sign of strong adherence to agreed cuts.

Higher prices and production fuelled a more than doubling in oil and gas revenues for Origin Energy in the December quarter.

The collapse in resource sector investment has yet to run its course, with the looming completion of as much as $100 million of spending on gas export projects to slash the level of engineering construction to the lowest level since 2009, a report by Deloitte Access Economics has found.

Coal mining in Sydney's water catchment could prove an early test for new Premier Gladys Berejiklian

Chevron has brought forward the start-up of the third unit at its Gorgon gas project while still targeting first production from Wheatstone by mid-year.

Australia is set to become the world's biggest LNG exporter but project delays have helped US exporters get a foot in the door in north Asia

A dividend hike and a possible share buyback on the cards when global miner Rio Tinto releases its earnings early next month, after finalising deals to raise as much as $US3.8 billion from asset sales in recent months.

Oil and natural gas producers are preparing for even more quick policy turns from the Trump administration.

BHP has boosted output of iron ore to record levels while prolonging its curtailment of oil and gas output in the US as it waits for prices to improve, its latest production report shows.

Shares in Rio Tinto surged from the opening bell with sentiment cheered by the sale of a further suite of coal mines which raises the odds of a buy-back or dividend hike.

• COMMENT

January 23 will be a day to remember for whistleblowers, regulators, politicians – and, of course, corporations. 

​President Donald Trump moved assertively to further dismantle his predecessor's policies: the Keystone XL pipeline is back.

• EXCLUSIVE

A whistleblower at Origin Energy has filed an explosive legal action.

Residents of a nursing home and a retirement village were among consumers switched by energy retailer Simply Energy to new supply contracts without obtaining their consent, resulting in a stiff fine.