The conflict in the Middle East—the latest of an extraordinary series of shocks in recent years—has heightened geopolitical risks for commodity markets, in an already uncertain global environment. Before the conflict began, voluntary oil supply withdrawals by OPEC+ producers pushed energy prices up 9 percent in the third quarter. As a result, the World Bank’s commodity price index rose 5 percent over that period and is now 45 percent above its 2015-19 average. For now, the war’s impact on commodity prices have been muted. Prices of oil and gold have risen moderately, but most other com...