Lincoln, Neb. (KLKN) — Record-high diesel prices are driving up costs for trucking companies, with a single fill-up for a full-size semi now costing around $1,500. The national average for diesel is around $6.51 per gallon, while Nebraska’s average is about $6.22 per gallon, according to AAA. Jo e Schulz, owner of Lincoln-based Schulz Logistics, said most full-size semis can hold... ...read more read less