US Cash Products — Chicago gasoline, diesel surge as Great Lakes supply tightened

NEW YORK, Oct 12 (Reuters) — Cash differentials for gasoline and diesel surged in the Chicago spot market on Monday as the US Midwest tightened, traders said. Chicago CBOB gasoline gained 10 cents, trading 10 cents per gallon above the gasoline futures benchmark on the New York Mercantile Exchange, market participants said. Chicago ultra-low sulfur diesel rose 30 cents, trading 15 cents per gallon above the ultra-low sulfur diesel futures contract on the NYMEX. Elsewhere in the Midwest, Group 3 V-grade gasoline gained 1.25 cents, trading 18 cents higher than the benchmark. Group 3 diesel jumped 2.25 cents, trading 19.50 cents higher than the benchmark. US Gulf Coast M3 conventional gasoline fell 2 cents, trading 15 cents higher than the gasoline futures. A3 CBOB gasoline fell 1.75 cents, trading 10.75 cents per gallon below futures. Gulf Coast 62-grade ULSD fell 4 cents, trading 5 cents per gallon below futures. In New York Harbor, M3 conventional gasoline fell three quarters of a cent, trading 26 cents per gallon below futures, traders said. Diesel for delivery in New York Harbor fell 7 cents, trading 16.75 cents per gallon above futures, traders said. The RBOB futures contract on