ENERGY

Gas Prices Dip Nationally for First Time This Year: The average price for all grades, including taxes, was $1.37 per gallon on Friday, according to the Lundberg Survey of 10,000 gasoline stations nationwide. That’s down 1.21 cents from the last survey, on May 24. Analyst Trilby Lundberg credited lower crude oil prices and the end of a supply shortage. Prices had been on the rise since Nov. 17. California was especially hard hit because of a state-mandated switch to cleaner-burning gasoline that caused short supplies. Those problems have been resolved, Lundberg said.