Oil is the most commonly used energy resource for transportation in the U.S.

Oil is the primary energy resource used for transportation in the United States, fueling most vehicles on the road today. Refined into gasoline and diesel, oil powers cars, trucks, airplanes, trains, and ships. The U.S. transportation sector relies heavily on petroleum-based fuels because of their high energy density and convenience. Despite the growing adoption of electric vehicles and alternative fuels, oil remains the dominant energy source for transportation due to its established infrastructure and widespread use. The continued demand for oil in transportation underscores its critical role in the U.S. economy and energy landscape.