The U.S. may be the world's biggest producer of crude oil, but that's not the case for motor oil. The cost of lubricants is soaring, and even a tentative deal to end the war won't solve the problem.

The U.S. may be the world's biggest producer of crude oil, but that's not the case for motor oil. The cost of lubricants is soaring, and even a tentative deal to end the war won't…

Low OECD inventories, a depleted U.S. SPR, recovering demand, and persistent geopolitical risks suggest Brent could find support well above pre-war levels even if Middle East…