Why are oil prices up but oil stocks down right now?

Maybe a dumb question but I’m trying to understand what’s going on in the market. With the recent war escalation involving Iran, oil prices have been jumping because traders are worried about supply disruptions in the Middle East, especially around the Strait of Hormuz where a lot of global oil shipments pass through. So I would expect oil companies to be ripping higher. But when I checked the market today, a lot of oil stocks (like Exxon etc.) are actually down or flat while crude itself is up. Is this just a “sell the news” situation or something else? Can someone explain why oil prices can go up while oil stocks go down during geopolitical events like this?