State of Oklahoma v. State of Texas (United States, Intervener)

Background

The states of Texas and Oklahoma had a long-running dispute over the precise boundary along the south bank of the Red River in the Big Bend area. The case involved many procedural steps, interventions by private parties and the United States, a receivership, and the appointment of two commissioners to run, locate, and mark the line on the ground. The commissioners completed field work, produced maps, and filed detailed reports and field notes dated April 25, 1924, showing witness posts, monuments, and the positions of oil wells near the river.

Reasoning

The Court considered the commissioners’ joint reports, the accompanying maps, the methods used to locate the south bank and the medial line, and the recorded positions of oil wells within 300 feet. The report explained how the boundary was fixed by the mean water level where the cut bank is washed and by a medial line between banks where needed. After reviewing exceptions and protests, the Court overruled those objections, confirmed the commissioners’ report and maps, and declared the surveyed line to be the true boundary along that part of the Red River, while recognizing that natural erosion and accretion may later change the line.

Real world impact

The decision fixes which tracts, riverbed areas, and oil wells lie in Texas or Oklahoma, resolving competing claims and guiding which state may regulate or collect revenues from those wells. The Court ordered the clerk to send authenticated copies of the decree and maps to the chief magistrates (governors) of both states. Because the decree is tied to the physical conditions as they existed on the survey date, ownership and control remain subject to future natural changes in the river’s banks.