Soybean oil futures gained almost 1 1/2 percent on Tuesday, supported by gains across the soybean complex. The gains drove the price for the most active May contract back above 32 cents per pound. Despite gains in soybean meal futures, the May oil share gained 0.02 percent to 30.02 percent. The gains in soybean meal and oil also helped lift the crush margin, with the May board crush up 8 1/2 cents to $1.31 3/4 per bushel. Prices in the complex were supported by technically driven buying and…