Wyoming does not merely pump oil out of the ground; it also refines a portion of it, converting crude into the gasoline, diesel, and other products that fuel the region. The state's refineries form a less visible but important link in the energy chain.

Refining adds value to the raw crude, and Wyoming's plants have long processed oil produced in the state and surrounding region. The refineries provide steady jobs and supply fuel to markets across the northern Rockies, insulating the area somewhat from the disruptions that can hit fuel supplies coming from farther away.

The industry faces the same currents reshaping energy everywhere. Refineries must invest to meet environmental standards and adapt to shifting demand, and the long-term future of gasoline and diesel is clouded by the rise of electric vehicles. Some refiners have explored producing renewable fuels as a hedge against that future.

For now, the plants remain essential infrastructure. Every gallon burned in a Wyoming truck or tractor likely began as crude pulled from a western oil field and transformed at a refinery not far away. In a state defined by its energy production, refining is the step that turns Wyoming's underground wealth into the fuel that powers daily life across the region.