Chicago soybean oil futures climbed to a three-week high after US military strikes on Iran jolted energy markets, sending crude oil prices sharply higher. The rally reflects traders pricing in tighter vegetable oil supplies should sustained conflict disrupt shipping lanes or trigger broader sanctions on Iranian crude exports.

Higher crude values improve the economics of biodiesel and renewable diesel production, lifting demand expectations for biofuel feedstocks including soybean oil. CBOT July soybean oil futures rose 1.8% to 46.82 cents per pound, the strongest level since late May, while nearby soybean contracts gained 12 cents to $11.84 a bushel.

The move underscores how geopolitical risk in the Middle East cascades into agricultural markets through the energy-biofuel linkage. With the US renewable volume obligations mandating rising biofuel blending through 2025, any sustained crude premium above $80 a barrel structurally supports vegetable oil crush margins.

For investors, the episode highlights soybean oil's dual sensitivity to both crop fundamentals and energy geopolitics. Positioning in vegetable oil futures now requires monitoring Strait of Hormuz transit risks alongside USDA acreage reports — a correlation that typically strengthens during summer driving season.