Jonathan Fahey

The CEO of electric car maker Tesla Motors hopes to park hundreds of millions of large, solar panel-connected batteries in homes and businesses so the world can disconnect from power plants — and he can profit. On Thursday night, before an adoring crowd and a party-like atmosphere, Musk unveiled how he intends to do it.

ExxonMobil CEO Rex Tillerson, who led an Energy Department advisory committee that recently called for offshore oil and gas exploration in the Arctic, talked about why he thinks it's worth the risk.

OPEC and lower global oil prices delivered a one-two punch to the drillers in North Dakota and Texas who brought the U.S. one of the biggest booms in the history of the global oil industry.

The U.S. should immediately begin a push to exploit its enormous trove of oil in the Arctic waters off Alaska or risk a renewed reliance on imported oil, an Energy Department advisory council says in a study released Friday.

Deepwater drilling rigs are sitting idle. Fracking plans are being scaled back. Enormous new projects to squeeze oil out of the tar sands of Canada are being shelved. Maybe low oil prices aren’t so bad for the environment after all.

On the same day the world's scientists issued their latest report on climate change and the risks it poses to society, the nation's biggest oil and gas company said the world's climate policies are "highly unlikely" to stop it from selling fossil fuels far into the future.

The price of oil plunged to its lowest level in nearly six months Friday, falling below $100 per barrel for the first time since February. A drop in gasoline prices can't be far behind.