Burford v. Sun Oil Co., 319 U.S. 315 (1943), was a United States Supreme Court case in which the Court created a new doctrine of abstention. Facts The Railroad Commission of Texas granted defendant Burford an order which gave him a right to drill four oil wells on a small plot of land on the East Texas Oil Field. Plaintiff Sun Oil Co. sued Burford in United States District Court for the Western District of Texas, asserting both federal question jurisdiction and diversity jurisdiction, and alleging that the Commission's order denied them Due Process of law under the Fourteenth Amendment. The Commission was charged by Texas state law with the administration of oil and gas regulations, including production quotas for each field and well. Quotas were set in conjunction with other oil- and gas-producing states. Part of its duties was regulating the spacing of the individual oil wells. Because of the complex geology of oil fields and multiple division of surface rights, one user's oil drilling activity can affect the production of others, which meant that both public and private interests were at stake. Underground water and gas pressure needed to be monitored in order to maintain steady oil production and prevent waste. Because the rule governing the spacing of wells over the oil field, known as “Rule 37”, generated a large amount of litigation among many competing landowners and potential drillers, the Texas Legislature had developed a special system of judicial review for such cases. Commission orders could be appealed to the state district court in Travis County, Texas, and could then be reviewed by the Texas Court of Civil Appeals, and then to the Texas Supreme Court, which had final authority over questions of state law. The district court of Travis County was given exclusive jurisdiction over appeals of Commission orders, allowing them to specialize in such matters and promoting cooperation between the court and the Commission. There already existed conflicting statutory interpretations between the state and federal courts in this matter, so the district court chose to abstain in deference to the state and dismiss the case. The United States Court of Appeals for the Fifth Circuit reversed the District Court's dismissal. Plurality opinion Justice Black, writing for the plurality, reversed the judgment of the Fifth Circuit and upheld the District Court's dismissal of the matter. The central issue to the plaintiff's claim was the “reasonableness” of