Phillips Petroleum Co. v. Wisconsin

Background

A large oil company that also produces and gathers natural gas sold processed gas at delivery points to five interstate pipeline companies, which transported and resold the gas in fourteen states. The Federal Power Commission opened an investigation and initially found the company’s sales to be part of production and gathering and therefore outside the Commission’s rate authority. The Court of Appeals reversed that decision, and the Supreme Court granted review.

Reasoning

The central question was whether these sales were exempt as part of “production or gathering” or instead were sales in interstate commerce for resale subject to federal regulation. The Court relied on the Natural Gas Act’s language, legislative history, and prior decisions, especially Interstate Natural Gas Co., to conclude that production and gathering refer to physical field activities and end before the point where Phillips sold gas to interstate pipelines. The Court therefore held the sales were wholesale interstate transactions within the Commission’s authority and affirmed the judgment below.

Real world impact

As a practical matter, the ruling allows the Federal Power Commission to regulate wholesale rates charged by independent producers when they sell to interstate pipelines. That power lets the federal agency address charges that become part of downstream costs to consumers. The decision narrows the situations in which states can claim exclusive control over wholesale pricing, although the Court noted the ruling enforces federal regulation to fill identified gaps in interstate wholesale oversight.

Dissents or concurrances

A concurrence emphasized Congress’s intent reflected in committee reports; dissenting Justices argued the Act’s exemption for production and gathering, long administrative practice, and state conservation and pricing roles weigh against federal regulation in these local field sales.