Could World War 3 affect gas prices?

Yes — a World War III–level conflict could plausibly send gas prices sharply higher, and in many scenarios the increase would be immediate.

That’s because oil is traded globally, so prices can jump fast when markets fear supply disruptions, damaged infrastructure, shipping bottlenecks, sanctions, or panic buying. Another factor is that major oil-producing countries might redirect energy resources toward domestic military needs, which could reduce exports even if fields and refineries are not directly destroyed.

Main ways prices could rise:

• Supply cuts: If major oil-producing regions or refineries were hit, global supply would tighten.
• Redirected production: Producers may keep more fuel and oil at home to support military and civilian needs.
• Shipping chokepoints: Trouble in routes like the Strait of Hormuz or Suez Canal could slow deliveries and raise transport costs.
• Market speculation: Even the expectation of shortages can push crude prices up before any actual shortage hits.
• Sanctions and embargoes: Limits on exports from major producers would force buyers to compete for less supply.

Governments could try to soften the spike by releasing strategic reserves, increasing domestic production, or using fuel rationing, but those measures would only partially offset the shock if the war were large enough.

So the short answer is: yes, World War III could definitely affect gas prices, and the likely direction would be sharply upward — though the exact size and duration would depend on which countries are involved and how much energy infrastructure is disrupted.