We're going in depth on oil, and its role in our lives and the global economy.

Shortages of the state's special blend causes prices to spike, but this feels different.

Declines in exports are the cause. The rest of the economy is holding up.

Some developers are pushing ahead in Williston despite lower prices per barrel.

Continued low oil prices mean airlines are saving billions of dollars.

Housing planned during North Dakota's oil boom is now short on occupants.

OPEC predicts oil prices will hang below $100 a barrel for as long as a decade.

Predicting global supply and demand is enormously complicated

Opposite of a price war: Despite cheaper fuel costs, shipping companies charge more.

For first time in four months, an average gallon goes up – from $2.033 to $2.038.