Johnson Oil Refining Co. v. Oklahoma Ex Rel. Mitchell

Background

An Illinois oil company owned a refinery in Cleveland, Pawnee County, Oklahoma, and kept a large fleet of tank cars that shipped refined oil to many delivery points across the United States. The cars were almost always used in interstate commerce, were stenciled to be returned to Cleveland, and spent only short periods on the Cleveland tracks for repairs or reloading. Daily averages in the record showed about 37–66 cars in the county during 1925–1928, and an agreed average of 64 cars for 1929–1930 (about 16% of the fleet). Pawnee County assessed taxes on the entire fleet for several years; a district court reduced one year’s assessment to the average number of cars present, but the Oklahoma Supreme Court upheld taxing the whole fleet.

Reasoning

The Court considered whether Oklahoma could constitutionally tax all of the company’s cars. Relying on earlier decisions, the Court explained that the taxable place of movable equipment depends on where it is habitually employed. When a fleet constantly moves among States, no single State may tax the entire fleet. Instead, each State may tax its fair share by using the average number of cars habitually present within its borders. Applying that principle, the Court found no basis for Oklahoma’s taxation of the entire fleet and reversed the state court’s rulings.

Real world impact

The decision means states cannot simply tax an out‑of‑state company on its whole movable fleet when most cars operate elsewhere. States remain able to tax the share of equipment habitually in their borders, and the case was sent back for proceedings consistent with that rule, which will determine tax amounts by average presence.