Maintaining curbs through March will 'do the trick,' says Saudi oil minister.

Maintaining curbs through March will 'do the trick,' says Saudi oil minister.

Non-OPEC countries agree to trim output next year.

Non-OPEC countries agree to trim output next year.

Group to reduce supply to 32.5 million barrels a day.

Group to reduce supply to 32.5 million barrels a day.

U.S. oil shale boom is faltering, while Iran's exports are growing slowly.

U.S. oil shale boom is faltering, while Iran's exports are growing slowly.