Energy

Some wind resources are hundreds of miles from potential customers. Projects to build high voltage lines to carry that power to where it's needed are regularly stymied by the regulatory environment.

Many homes in the Northeast use oil heat, and many homeowners lock into a set price to avoid nasty surprises. But this year, that prudent step has backfired as oil prices plunge.

A well on the outskirts of LA has been spewing natural gas into the air for months. Once it's sealed off, regulators say, it can never be tapped again. Other new restrictions are also being imposed.

New information has surfaced about conditions surrounding the broken gas storage well releasing methane in southern California. The powerful greenhouse gas has been escaping for three months. It turns out the well was being operated in a way some experts say leaves little margin of safety, and the state of California is now re-examining the practice.

An oil and gas company has spoken publicly for the first time on a decade-long oil leak in the Gulf of Mexico. Damage from Hurricane Ivan in 2004 toppled a production platform off the Louisiana coast.

Cheap oil doesn't just mean cheaper gas prices; it also means cheaper jet fuel. That's led to a big drop in airfares. It's good news for travelers — and for airlines, which have struggled for years.

Overheated lithium-ion batteries have been a problem for airplanes, cars and even "hoverboards." A chemical engineer at Stanford University thinks she has a solution to the problem.