Today's dramatic $6-a-barrel spike in oil has been blamed on a couple of factors - a forecast by Morgan Stanley (NYSE:MS) claiming oil would hit $150 a barrel by July and a weakening dollar off news unemployment increased half a percent for the month of May.

But CNBC contributor John Kilduff, who is also the vice president of risk management for MF Global (NYSE:MF), told viewers on the June 6 "Squawk on the Street" geopolitical factors, specifically remarks from an Israeli official about attacking a nuclear facility in Iran, is behind the spike.

"[W]hat's really lit up this market big time here is, which hasn't been really mentioned. I haven't heard too much and I'm surprised at, is deputy minister in Israel said this morning that an attack on Iran's nuclear facilities is quote, ‘unavoidable,'" said Kilduff on CNBC's "Squawk on the Street."

Early last month, when oil prices flirted with inflation-adjusted record highs, fears of sky-high gas prices were filtered through the media.

CNBC's Erin Burnett gave viewers a frightening prediction of $4-a-gallon gasoline during a January 2 appearance on the NBC "Nightly News." The "Street Signs" anchor cited John Kilduff, the vice president of risk management at the MF Global Ltd. Brokerage, as the source of this predicted high watermark for gasoline.

"And John Kilduff, who I know you speak with often, as well, Brian, he says we could see prices at the pump as high as $4 a gallon," Burnett said. "And that could be by the middle of February. So it could be anytime in the next six weeks. So that's going to be an increase, and we've seen it across the board, Brian. Commodity prices are going up, and that is causing worry for stocks."