Iran's agreement to freeze its nuclear program for six months in exchange for limited sanctions relief could lead to more oil on the world market and lower prices at the gas pump, said Kevin Book, managing director at ClearView Energy Partners.
"In the long-run, ... this suggests a bearish trajectory" for prices, Book said on CNBC's "Squawk Box" on Monday, following the weekend deal between Iran and six world powers—the U.S., China, Russia, France, Britain and Germany.
(Read more: Brent eyes $105 asIran deal eases supply risks)
In the White House fact sheet, the deal allows for a 1 million barrel-a-day limit on Iranian oil exports. A recent estimate said Iran exported 715,000 barrels per day in October.