Investors should exercise patience when evaluating stocks shortly after a geopolitical incident, like the U.S. airstrike that killed a top Iranian military leader, CNBC's Jim Cramer said Friday morning.

That's because it usually takes more than one day for clarity to arrive, but the "Mad Money" host said Friday there are really only three oil stocks that make sense in this uncertain and overdone environment.

They are: BP, Schlumberger and Pioneer Natural Resources.

"Otherwise, though, I'd much rather play this Iranian situation with the cyber-security stocks, which are not at all overdone," Cramer said.

Cramer's comments follow a trading session which saw oil prices touch levels not reached since last spring.

International benchmark Brent crude rose as high at $69.50, before paring gains to trade at $68.67, a gain of 3.7% or $2.44.

U.S. West Texas Intermediate settled at $63.05 for a gain of $1.87, or 3%. Earlier in the session WTI hit $64.09, its highest level since April.

As analysts and investors try to parse the trajectory of oil prices while awaiting potential retaliatory action from Iran, Cramer said it's important to look at the forward curve.