The national average gas price rose to a fresh wartime high of $4.39 per gallon in its biggest one-day jump since a ceasefire with Iran was announced on April 7. It was also the biggest one day jump since early March. On Thursday, gas prices jumped seven cents to $4.30, but overnight jumped an additional nine cents. Since the war started, the average price of gas has risen more than 47%. The steady rise for gas prices comes as crude oil extends its gain for the year to around 80%. U.S. crude oil closed on Friday around $102 per barrel and international benchmark Brent ended the week at about $108 per barrel. This week, price pressures worsened as President Donald Trump said that he wants to maintain the blockade on Iranian ports, which the U.S. Navy has been enforcing since April 13. "Iran can't let Iran have a nuclear weapon, and their economy is crashing," Trump said in the Oval Office on Thursday afternoon.…