U.S. grains and oilseed futures markets caught fire on Friday, with corn notching an all-time high above $7 a bushel, caught in a frenzied broad-based commodity rally led by soaring crude oil, traders said.
Further boosting corn and soybean prices were worries about the young U.S. crops. Torrential rains pummeled the American heartland this week, increasing prospects for a yield drag on both.