Natural gas futures rose Tuesday as the front-month contract headed toward expiration, pushing a rebound amid a raft of bearish bets. Bets on falling prices have been outnumbering wagers on rising prices by more than 3 to 2 in recent weeks, a scenario that can cause a rally on expiration day. Many of those bears will have to close out their bets or roll them over to the next month, and to do that they must buy back into a contract they once sold. “Some traders would wait until the last minute to get out of their positions,” said Phil Flynn, a futures account executive at the Price Futures Group in Chicago. Unlike many other commodities, the first notice day comes after the expiration in the energy markets, allowing traders to hold their positions until the last trading day. Prices for the front-month […]