Recent U.S. retail diesel prices have continued to be much lower than at their peak last July of $4.76 per gallon - they were down by roughly $2.22 per gallon as of the middle of July of this year. Further, the national average for diesel actually fell below gasoline’s average price in mid-May and continued the trend through the end of June, based on data from the Energy Information Administration. With gasoline prices falling faster than diesel in July, the diesel price average rose above that of gasoline. The national average of diesel prices was $2.542 while that of gasoline was $2.528 as of July 13.