Gas prices are heading up again. Rising crude oil prices and a fall in U.S. supplies are driving wholesale gas prices up sharply. That has yet to be fully reflected at the retail level. Prices at the pump — up 4 cents the past week to a national average of $3.52 a gallon — could climb another 15 cents or higher over the next two weeks. A year ago, the national average was $3.38. "It's getting ugly,'' says Patrick DeHaan, senior analyst for GasBuddy.com. "First and foremost, the political problems in Egypt are driving crude oil prices, but there has also been a sharp drop in oil supplies the past two weeks. This is coming at a time when demand is at its annual July peak." Egypt is not a major oil supplier, but ongoing political woes threaten Middle Eastern shipments and were the catalyst behind crude oil prices rising to 15-month highs earlier this week. Benchmark West Texas crude oil eased 1.5% to $104.91 a barrel Thursday. Wholesale gas prices — up 30 cents to 50 cents a gallon on some markets since late June — rose 0.8% to $3.04 a gallon for mid-August delivery. Typically, pump prices are about 75 cents higher. Read more http://www.usatoday.com/story/money/2013/07/11/summer-gas-prices-heating-up-again/2508727/