Political volatility among the world’s leading oil producers suggests deeper causes for recent price spikes.

The Gulf of Mexico oil spill spotlights the growth of deepwater drilling and the challenges of balancing strong environmental regulation with efforts to expand U.S. domestic oil production.

Non-OPEC oil producers, which turn out most of the world’s oil, are operating near capacity.

Foreign policy is dominating U.S. political discourse for the first time in years. This backgrounder looks at the leading schools of foreign-policy thought on both sides of the political aisle.

This publication is now archived. IntroductionFor weeks now—at least since Iraqis overwhelmingly approved a new constitution in late October—United States policy in Iraq increasingly has come to depe…