North Dakota

Inside Energy traveled to Williston, the heart of the oil boom, to get answers.

Some oil boomtown pickup truck owners make a statement by "rolling coal."

Billionaire Harold Hamm is a leading oil man. Phil Hamm - he's a different story

Fracking oil wells burn off as much a third of the natural gas they release.

Williston, North Dakota, is in the middle of an oil boom, but it doesn't have many stores or restaurants for a growing population.

All sorts of people have moved to North Dakota to take jobs in the oil fields.

An intense oil-train fire in North Dakota demonstrates the scale of damage possible when oil is moved by rail.

Elsie Ejismekwu is happy to have two driving jobs in the North Dakota oil fields as she starts her life over.

Dangerous work and long hours combine for a lot of oil-field injuries. Small-town ambulance crews have their hands full.

The fracking boom is bringing in a surge of development -- and tax revenue -- to North Dakota. Now conservationists have a plan use some of that growth to protect the environment.