Free market forces, not politics, are producing results at gasoline and diesel pumps. Oil prices have declined and are hovering around $90 a barrel, giving motorists a little relief as we head into the annual vacation and peak travel time of the year.

Analysts say lower oil demand and a stronger dollar have contributed to gasoline’s price decline. Still, it’s not known whether pump prices will fall enough to encourage cash-strapped families to take trips this summer. What is clear is that stable, affordable supplies of fuel offer Americans one of our most important freedoms: mobility.