Gas prices in Missouri have jumped nearly 20 cents a gallon in the last month, 50 cents in the last year. That has prompted some people to grumble gas companies are trying to gouge consumers by taking advantage of fears of war in the Middle East. But State Attorney General Jay Nixon says the price increase looks as though it’s being driven by legitimate market factors. Nixon says you can report any suspected price gouging to his office. In the meantime, he says his consumer protection lawyers are closely watching gas prices for any possible gouging.