What follows is an opinion from the Supreme Court of the United States. Your task is to determine the bases on which the Supreme Court rested its decision with regard to the legal provision that the Court considered in the case. Consider "judicial review (national level)" if the majority determined the constitutionality of some action taken by some unit or official of the federal government, including an interstate compact. Consider "judicial review (state level)" if the majority determined the constitutionality of some action taken by some unit or official of a state or local government. Consider "statutory construction" for cases where the majority interpret a federal statute, treaty, or court rule; if the Court interprets a federal statute governing the powers or jurisdiction of a federal court; if the Court construes a state law as incompatible with a federal law; or if an administrative official interprets a federal statute. Do not consider "statutory construction" where an administrative agency or official acts "pursuant to" a statute, unless the Court interprets the statute to determine if administrative action is proper. Consider "interpretation of administrative regulation or rule, or executive order" if the majority treats federal administrative action in arriving at its decision.Consider "diversity jurisdiction" if the majority said in approximately so many words that under its diversity jurisdiction it is interpreting state law. Consider "federal common law" if the majority indicate that it used a judge-made "doctrine" or "rule; if the Court without more merely specifies the disposition the Court has made of the case and cites one or more of its own previously decided cases unless the citation is qualified by the word "see."; if the case concerns admiralty or maritime law, or some other aspect of the law of nations other than a treaty; if the case concerns the retroactive application of a constitutional provision or a previous decision of the Court; if the case concerns an exclusionary rule, the harmless error rule (though not the statute), the abstention doctrine, comity, res judicata, or collateral estoppel; or if the case concerns a "rule" or "doctrine" that is not specified as related to or connected with a constitutional or statutory provision. Consider "Supreme Court supervision of lower federal or state courts or original jurisdiction" otherwise (i.e., the residual code); for issues pertaining to non-statutorily based Judicial Power topics; for cases arising under the Court's original jurisdiction; in cases in which the Court denied or dismissed the petition for review or where the decision of a lower court is affirmed by a tie vote; or in workers' compensation litigation involving statutory interpretation and, in addition, a discussion of jury determination and/or the sufficiency of the evidence.

Opinion:
NATURAL GAS PIPELINE CO. v. PANOMA CORPORATION et al.
NO. 191.
Argued March 28-29, 1955.
Decided April 11, 1955.
Douglas F. Smith argued the cause for appellant in Nos. 191 and 321. Clarence H. Boss argued the cause for appellant in No. 321. With them on the brief were D. H. Culton, Coleman Hayes, Warren T. Spies and Arthur R. Seder, Jr.
Mac Q. Williamson, Attorney General of Oklahoma, and T. Murray Robinson argued the cause for appellees in No. 191. Hugh B. Cox argued the cause for appellees in No. 321. With them on a joint brief were Rayburn L. Foster, Harry D. Turner, R. M. Williams and Kenneth Heady. Mr. Robinson and Leon Shipp also filed a brief for appellees in No. 191.
Per Curiam.
In these cases Oklahoma has attempted to fix a minimum price to be paid for natural gas, after its production and gathering has ended, by a company which transports the gas for resale in interstate commerce. We held in Phillips Petroleum Co. v. Wisconsin, 347 U. S. 672, that such a sale and transportation cannot be regulated by a State but are subject to the exclusive regulation of the Federal Power Commission. The Phillips case, therefore, controls this one.
We disagree with the contention of the appellees that Cities Service Gas Co. v. Peerless Oil and Gas Co., 340 U. S. 179, and Phillips Petroleum Co. v. Oklahoma, 340 U. S. 190, are applicable here. In those cases we were dealing with constitutional questions and not the construction of the Natural Gas Act. The latter question was specifically not passed upon in those cases.
Reversed.

Question: What is the basis of the Supreme Court's decision?

Choices:
judicial review (national level)
judicial review (state level)
Supreme Court supervision of lower federal or state courts or original jurisdiction
statutory construction
interpretation of administrative regulation or rule, or executive order
diversity jurisdiction
federal common law

Answer: 6