Carson Petroleum Co. v. Vial, Sheriff & Tax Collector

Background

A Delaware-based oil company and its subsidiary ran large storage tanks at St. Rose, Louisiana, to receive oil shipped by railroad from Kansas, Oklahoma, and Texas. The company bought high-grade gasoline for foreign buyers in England, France, and other ports. The oil was pumped into the tanks on arrival, kept there until a chartered ship or enough quantity was available, and then loaded onto tankers. No oil was sold locally; the company retained ownership and insured the oil while it was in the tanks.

Reasoning

The central question was whether the temporary stop and storage at St. Rose broke the oil’s continuous interstate and foreign journey so the State could tax it. The Court reviewed earlier decisions and concluded that storing and assembling cargo at a port to await ships can be part of a continuous export movement when the owner intends export and actually carries it out. The Court distinguished cases that involved local redistribution or separate local business. On that basis the Court reversed the Louisiana Supreme Court and held the oil was in continuous transit and not subject to state ad valorem taxation while awaiting shipment.

Real world impact

The ruling protects goods held at a port purely to fill export orders from state property taxes while they are in continuous export transit. Exporters who use tank farms or docks to accumulate cargo for ships will be less likely to face local taxation on those goods. The decision overturns the state court’s order to collect the tax and restores federal protection for continuous interstate and foreign shipments.

Dissents or concurrances

Two Justices would have affirmed the tax, applying an earlier case that treated depot storage as breaking the journey and allowing local taxation.