High demand and low supply have resulted in much higher natural gas prices this winter. Gas prices have hit a 10-year high, and many customers’ bills jumped $100 or more last month. Anita Randolph, the director of the Missouri Department of Natural Resources, says that’s in part because supplies are 10% to 14% lower than normal. And she defends the utility companies. She insists they aren’t gouging customers–only passing along their wholesale costs.