ON PETITION FOR REHEARING AND SUGGESTION FOR REHEARING EN BANC
OPINION
I
In response to our holding that the federal district court lacked subject-matter jurisdiction over this contract dispute between buyer and sellers of natural gas, the plaintiff-sellers now suggest that the suit was one to recover the contract price and a “just and reasonable rate” under section 4(a) of the Natural Gas Act, 15 U.S.C. § 717c(a). The complaint, however, made only one general allusion to the Natural Gas Act; it did not refer to section 4(a); it made no mention of “just and reasonable rates”; and it expressly alleged that Trunkline is liable because it “breached its contractual obligations to Plaintiffs under the Contract.” 1 The plaintiffs now argue that the suit on the contract was somehow implicitly also a suit to enforce rights they had under section 4(a) of the federal statute. Assuming for the sake of argument that a suit could have been brought under section 4(a), 2 the plaintiffs’ ingenious at *88 tempt to recharacterize this suit must fail. It is undisputed that the contract called for the defendant to pay the maximum rate allowed by law, and the complaint alleged that Trunkline paid the plaintiffs less than the maximum allowed by the applicable rule of the federal regulatory commission. The plaintiffs have cited no authority for the proposition that the commission’s approval of the contract rate as “just and reasonable” implied that any misapplication of the pricing provision in the contract would result in a rate that was not “just and reasonable” under section 4(a). As we pointed out in our original opinion, both parties have acknowledged, as they must, that they would have been free under federal law to agree on a price that was lower than the maximum lawful price. There is simply no reason to indulge the fiction that the complaint in this case contained some implicit allegation about a “violation” of section 4(a) of the Natural Gas Act.
II
The plaintiffs also contend that their state contract claim by itself confers federal jurisdiction. They cite
Franchise Tax Board v. Construction Laborers Vacation Trust,
A
As we suggested when citing
Franchise Tax Board
in a footnote to our original opinion, it is difficult to make any general statement about federal-question jurisdiction to which some exception could not be found. In the course of a broad review of the jurisprudence,
Franchise Tax Board
concluded that federal jurisdiction over a state-created claim
may
be present when a state-law claim “is ‘really’ one of federal law,” or when “some substantial, disputed question of federal law is a necessary element of one of the well-pleaded state claims.”
Franchise Tax Board
gave only two examples of decisions in which federal-question jurisdiction had been invoked to vindicate a state-law right:
Smith v. Kansas City Title & Trust Co.,
B
Whatever was meant by Franchise Tax Board’s reference to a state-created claim that “is ‘really’ one of federal law,” the Court neither held nor implied that every state-created cause of action that requires the resolution of a substantial federal question falls within the jurisdiction of the federal district courts.
In the present case, the resolution of a question of federal law will be necessary only because the parties to a private contract chose to “incorporate” a federal regulatory standard by reference. In an analogous situation — where a state law incorporates federal law as the applicable state standard — it has occasionally been suggested that this is enough to create federal-question jurisdiction.
See, e.g., Agricultural Transportation Association v. King,
III
The petition for rehearing is DENIED, and no member of this panel nor judge in regular active service on the court having requested that the court be polled on rehearing en banc (Federal Rules of Appellate Procedure and Local Rule 35), the suggestion for rehearing en banc is DENIED.
Notes
. The complaint’s general allusion to the Natural Gas Act had an obvious purpose in anticipating and disputing a defense by Trunkline: that the defendant was forbidden by federal law to pay higher rates than it did pay. Because of the "well-pleaded complaint rule,” however, such anticipation of the defendant’s position cannot he used to establish federal jurisdiction.
See, e.g., Louisville & N.R.R. v. Mottley,
. Such a suit would, to put the matter gently, have encountered its own set of jurisdictional problems.
See, e.g., United Gas Pipe Line Co. v. Mobile Gas Serv. Corp.,
. Indeed,
Moore
was reaffirmed in
Crane v. Cedar Rapids & I.C. Ry.,
. It is strange but true that the
Moore
opinion does not discuss the
Smith
case, even though the author of
Moore
was the attorney for the prevailing party in
Smith.
The author of
Franchise Tax Board
agrees that
Moore
and
Smith
are irreconcilable.
See Merrell Dow Pharmaceuticals, Inc. v. Thompson,
— U.S. —, —, at n. 1,
