Saudi Arabia will extend a cut in the amount of oil it sends to the world after a series of reductions by members of the OPEC+ alliance of major producing countries failed to prop up prices. That’s been a good thing for U.S. drivers, who have been able to fill their gas tanks for less money in recent months. But it’s bad news for OPEC+ countries whose oil income bolsters their economies. The Saudi Energy Ministry said in a statement on its website that its voluntary cut of 1 million barrels per day will stay in place through the first three months of next year.