Phillips Petroleum Co. v. Shutts

Justice Stevens,

concurring in part and dissenting in part.

For the reasons stated in Parts I and II of the Court’s opinion, I agree that the Kansas courts properly exercised jurisdiction over this class action. I also recognize that the use of the word “compelling” in a portion of the Kansas Supreme Court’s opinion, when read out of context, may create an inaccurate impression of that court’s choice-of-law holding. See ante, at 821. Our job, however, is to review judgments, not to edit opinions, and I am firmly convinced that there is no constitutional defect in the judgment under review.

As the Court recognizes, there “can be no [constitutional] injury in applying Kansas law if it is not in conflict with that *824 of any other jurisdiction connected to this suit.” Ante, at 816. A fair reading of the Kansas Supreme Court’s opinion in light of its earlier opinion in Shutts v. Phillips Petroleum Co., 222 Kan. 527 , 567 P. 2d 1292 (1977) (hereinafter Shutts I), cert. denied, 434 U. S. 1068 (1978), reveals that the Kansas court has examined the laws of connected jurisdictions and has correctly concluded that there is no “direct” or “substantive” conflict between the law applied by Kansas and the laws of those other States. Cf. ante, at 816, 821-822. Kansas has merely developed general common-law principles to accommodate the novel facts of this litigation — other state courts either agree with Kansas or have not yet addressed precisely similar claims. Consequently, I conclude that the Full Faith and Credit Clause of the Constitution 1 did not require Kansas to apply the law of any other State, and the Fourteenth Amendment’s^ Due Process Clause 2 did not prevent Kansas from applying its own law in this case.

The Court errs today because it applies a loose definition of the sort of “conflict” of laws required to state a constitutional claim, allowing Phillips a tactical victory here merely on allegations of “putative” or “likely” conflicts. Ante, at 816, 817. The Court’s choice-of-law analysis also treats the two relevant constitutional provisions as though they imposed the same constraints on the forum court. In my view, however, the potential impact of the Kansas choice on the interests of other sovereign States and the fairness of its decision to the litigants should be separately considered. See Allstate Insurance Co. v. Hague, 449 U. S. 302, 320 (1981) (Stevens, J., concurring in judgment). For both inquiries, it *825 is essential to have a better understanding of the merits of the underlying dispute than can be gleaned from the. Court’s opinion. I therefore begin with an explanation of the background of this litigation.

I

Petitioner (Phillips) is a large independent producer, purchaser, and seller of natural gas. Beginning in 1954, the prices at which it sold natural gas to interstate pipeline compames were regulated by the Federal Power Commission (Commission). 3 Phillips Petroleum Co. v. Wisconsin, 347 U. S. 672 (1954). As a party to a large number of producing oil and gas leases, Phillips is obligated to pay a percentage of the value of the production, usually one-eighth, to persons owning an interest in the ieased areas, so-called “royalty owners.” Some royalty owners are due monthly royalties by contractual agreements made directly with Phillips. See Shutts I, supra, at 532 , 567 P. 2d, at 1298 . Others are due royalties under contracts made with other gas producers who then sell their gas to Phillips — by separate contract with those producers, Phillips has “assumed the producer’s responsibility to distribute the royalties ... to the royalty owners.” 235 Kan. 195, 218 , 679 P. 2d 1159, 1178 (1984). The relationship between Phillips and the royalty owners is not regulated by the Commission although it is, of course, materially affected by the Commission’s control over the pricing relationship between Phillips and its customers.

In a series of orders entered after 1954, the Commission established a practice of suspending price increases proposed by Phillips until approved by the Commission, but allowing Phillips to collect the higher proposed prices upon the filing by Phillips with the Commission of a corporate undertaking to refund to its customers any portion of an increase *826 that is ultimately disapproved by the Commission. Pursuant to Commission regulation, Phillips agrees that unapproved prices it collects are subject to refund “with interest at seven percent (7%) per annum from the date of receipt until September 18, 1970, and eight percent (8%) per annum thereafter until paid out, if the FPC [does] not approve the sales price.” Shutts I, supra, at 533 , 567 P. 2d, at 1299 (emphasis deleted) (citing 18 CFR § 154.102 (c) (1977) and Commission opinion No. 586, 44 F. P. C. 761, 791 (1970)). Phillips’ receipts during periods when its proposed price increases have not yet received final approval therefore include two components — the “firm” proceeds and the “FPC suspense money.” For example, while an increase in price from 11 cents per Mcf (thousand cubic feet) to 13 cents is under consideration, the collection of the higher price would include firm proceeds of 11 cents and 2 cents of FPC suspense money.

In July 1961, while a price increase applicable to the tristate Hugoton-Anadarko area (Kansas, Oklahoma, and Texas) was pending, Phillips sent a notice to the royalty owners for that area advising them that “until further notice” they would be paid royalties on the basis of firm proceeds only and that royalties based on suspense money would be paid only after it was “determined that the sums collected are no longer subject to refund.” The notice also advised the royalty owners that they could receive ongoing payment of royalties on the suspense money as well if they furnished Phillips with an “acceptable indemnity to cover their proportionate part of any required refunds, plus the required interest.” Shutts I, 222 Kan., at 534 , 567 P. 2d, at 1299 (emphasis added). 4 The indemnity which Phillips required was a cor *827 porate security bond covering a principal amount based on estimated production for a 2-year period, plus the 7% interest rate Phillips would be required to pay to its customers if the price increase were not approved. Only 17 royalty owners provided Phillips with such an indemnity; approximately 6,400 royalty owners who did not do so did not receive royalties on the suspense proceeds until 11 years later, after the price increase was finally approved. The situation was succinctly summarized by the Kansas Supreme Court in Shutts I:

“From June 1, 1961, to October 1,1970, Phillips deposited the increased rate monies collected in its general account and commingled it with its other funds, without ever giving notice of this fact to royalty owners during the time it was holding money. It is important to note that during this period of time Phillips had no entitlement to the gas royalty owners’ share of the ‘suspense royalties,’ whether or not the rates were approved by the FPC. Phillips never owned this money. While Phillips collected eight-eighths (8/8) of the increased rates, under no condition was the one-eighth (1/8) of the increase attributable to the royalty owners ever to go to Phillips. That royalty share, according to eventual FPC ruling, was either to go to Phillips’ royalty owners, or back to Phillips’ gas purchasers with interest, or part to one and part to the other.” Id., at 535 , 567 P. 2d, at 1300 (emphasis in original).

*828 In 1970, the Commission entered an order approving Phillips’ Hugoton-Anadarko price increases to the extent of approximately $153,000,000 and disapproving them to the extent of approximately $29,000,000. Thus, over 18% of the suspense money had to be refunded to Phillips’ customers, with interest at the rates to which Phillips had agreed under Commission regulation. Having no jurisdiction over the relationship between Phillips and the royalty owners, however, the Commission’s order was silent on the subject of royalties on the $153 million of suspense money that did not have to be refunded. After the Commission’s order was finally affirmed by the Ninth Circuit in 1972, In re Hugoton-Anadarko Area Rate Case, 466 F. 2d 974 , Phillips mailed checks to the royalty owners for their share of the suspense moneys based on the approved higher prices that had been collected since 1961. However, “Phillips neither paid nor offered to pay any interest for the use of the money, nor did Phillips say anything about interest or how long the money had been held or used by Phillips.” Shutts I, supra, at 537, 567 P. 2d, at 1301 .

The foregoing facts gave rise to Shutts I. This case (Shutts II) involves suspense royalties due on similar price increases approved in 1976, 1977, and 1978 to a larger number of royalty owners (28,100) with interests in leased areas located in 11 States, including Kansas. Otherwise, however, “[w]ith a few exceptions this case is similar in legal issues and factual situation to that presented in Shutts [I]” 235 Kan., at 198 , 679 P. 2d, at 1165 . Both cases involve what the Kansas Supreme Court has characterized as a “common fund” consisting of the suspense royalties undeniably owed by Phil *829 lips but not paid for periods of several years while Commission approval of rate increases were pending. 5 It is undisputed that Phillips enjoyed the unfettered use of that money. See 222 Kan., at 560 , 567 P. 2d, at 1316 (testimony of Phillips’ Treasurer). It is also undisputed that when the Commission proceedings ended, none of the money could be retained by Phillips. To the extent that a price increase was disapproved, a refund to the purchasing pipelines, plus interest at the rate set by the Commission, would be required; to the extent that the increases were approved, the money was contractually owed to the royalty owners. As the Kansas court noted: “What is significant is these gas royalty suspense monies never did nor could belong to Phillips.” Ibid. (emphasis deleted). 6

*830 In Shutts I, the Kansas Supreme Court held that general equitable principles required the award of interest on royalties owed to royalty owners but used by Phillips for a number of years. In support of that conclusion it relied on general statements in two Kansas cases 7 and a long line of federal cases applying Texas law and concluding that equity requires “the award of interest on suspense royalties under similar circumstances.” Id., at 561 , 567 P. 2d, at 1317 . 8 The court noted that Oklahoma had no decisions allowing interest on suspense royalties, but concluded that “several Oklahoma decisions hold that interest may be awarded on equitable grounds where necessary to arrive at a fair compensation. (Smith v. Owens, 397 P. 2d 673 [Okla. 1963]; and First Nat. Bank & T. Co. v. Exchange Nat. Bank and T. Co., 517 P. 2d 805 [Okla. App. 1973]).” 9 Finally, the court construed the royalty agreements at issue as containing a “contractual *831 obligation” to pay interest on the royalties “for the period of time the suspense money was held and used by Phillips.” Id., at 562, 567 P. 2d, at 1317 . Thus the Kansas court also found its result consistent with the only Texas state-court decision on point, Stahl Petroleum Co. v. Phillips Petroleum Co., 550 S. W. 2d 360 (Tex. Civ. App. 1977), which had “awarded interest on suspended royalties” based on “the terms of the royalty agreement . . . rather than unjust enrichment.” 222 Kan., at 561 , 567 P. 2d, at 1317 . Significantly, when the Texas Supreme Court subsequently affirmed the Stahl judgment, it relied on the Kansas Supreme Court’s decision in Shutts I to decide that equity as well as contract law requires interest on suspense royalties. Phillips Petroleum Co. v. Stahl Petroleum Co., 569 S. W. 2d 480, 485-488 , and n. 5 (1978).

After determining that Phillips was liable for interest on the suspense royalties, the court reversed the trial court’s decision that the rate should be 6% because that was the statutory interest rate in Kansas, Oklahoma, and Texas. The Kansas Supreme Court noted that the statutory rate in all three States expressly applied only when no other rate had been agreed upon, 10 and that in this case Phillips had made an express agreement, evidenced by its corporate undertaking, to pay interest at the rate set by the Commission on suspense moneys found refundable. 222 Kan., at 564 , 567 P. 2d, at 1319 . The Kansas court therefore declined to apply any State’s interest statute, including its own. “[EJquitable principles require, and contractual principles dictate, that the royalty owners receive the same treatment” as refunded pur *832 chasers, that is, payment at the same FPC rate of interest. 11 Id., at 563 , 567 P. 2d, at 1318 .

Finally, the Kansas Supreme Court rejected Phillips’ contention that royalty owners had “waived” their claims to interest by accepting payment of the royalties later or by failing to post an indemnity “acceptable” to Phillips in order to receive contemporaneous payment of suspense royalties. The court noted that the “conditions imposed by Phillips were far more stringent than the corporate undertaking Phillips filed with the FPC,” id., at 567 , 567 P. 2d., at 1320, and concluded that it was “apparent [that] Phillips’ previous imposition of burdensome conditions upon royalty owners .. . was designed to accomplish precisely what the facts disclose. Virtually none of the royalty owners complied with the conditions, thereby leaving the suspense royalties in the hands of Phillips as stakeholder to use at its pleasure . . . .” Id., at 566 , 567 P. 2d, at 1320 . The court found the rule that “payment of the principal sum is a legal bar to a subsequent action for interest” inapplicable on these facts. Id., at 567 , 567 P. 2d, at 1321 . Instead, because “payment of [the royalties due] to the plaintiff class members, instead of extinguishing the debt, constituted only a partial payment on an interest-bearing debt[,] [t]his situation invokes application of the so-called ‘United States Rule,’ which provides that in applying partial payments to an interest-bearing debt which is due, in *833 the absence of an agreement or statute to the contrary, the payment should be first applied to the interest due.” Ibid. 12

In Shutts II, the case now under review, the Kansas Supreme Court adopted its earlier analysis in Shutts I without repeating it. “Although a larger class is involved than in Shutts I, the legal issues presented are substantially the same. While these issues are complex they were thoroughly reviewed in Shutts I” 235 Kan., at 211 , 679 P. 2d, at 1174 . 13 Noting that “Phillips has not satisfactorily established why this court should not apply the rule enunciated in Shutts the Kansas court went on to state that once jurisdiction over *834 a “nationwide class action” is properly asserted, “the law of the forum should be applied unless compelling reasons exist for applying a different law.” Id., at 221, 679 P. 2d, at 1181 .

HH H — I

This Court, of course, can have no concern with the substantive merits of common-law decisions reached by state courts faithfully applying their own law or the law of another State. When application of purely state law is at issue, “[t]he power delegated to us is for the restraint of unconstitutional [actions] by the States, and not for the correction of alleged errors committed by their judiciary.” Commercial Bank of Cincinnati v. Buckingham’s Executors, 5 How. 317, 343 (1847). The Constitution does not expressly mandate particular or correct choices of law. Rather, a state court’s choice of law can invoke constitutional protections, and hence our jurisdiction, only if it contravenes some explicit constitutional limitation. 14

Thus it has long been settled that “a mere misconstruction by the forum of the laws of a sister State is not a violation of the Full Faith and Credit Clause.” Carroll v. Lanza, 349 U. S. 408, 414, n. 1 (1955) (Frankfurter, J., dissenting). 15 That Clause requires only that States accord “full faith and credit” to other States’ laws — that is, acknowledge the validity and finality of such laws and attempt in good faith to apply them when necessary as they would be applied by home state *835 courts. 16 But as Justice Holmes explained, when there is “nothing to suggest that [one State’s court] was not candidly-construing [another State’s law] to the best of its ability, . . . even if it was wrong something more than an error of construction is necessary” to invoke the Constitution. Pennsylvania Five Ins. Co. v. Gold Issue Mining & Milling Co., 243 U. S. 93, 96 (1917).

Merely to state these general principles is to refute any argument that Kansas’ decision below violated the Full Faith and Credit Clause. As the opinion in Shutts I indicates, the Kansas court made a careful survey of the relevant laws of Oklahoma and Texas, the only other States whose law is proffered as relevant to this litigation. But, as the Court acknowledges, ante, at 816-818, no other State’s laws or judicial decisions were precisely on point, and, in the Kansas court’s judgment, roughly analogous Texas and Oklahoma cases supported the results the Kansas court reached. The Kansas court expressly declared that, in a multistate action, a “court should also give careful consideration, as we have attempted to do, to any possible conflict of law problems.” 222 Kan., at 557 , 567 P. 2d, at 1314 . 17 While a common-law judge might disagree with the substantive legal determinations made by the Kansas court (although nothing in its opinion seems erroneous to me), that court’s approach to the possible choices of law evinces precisely the “full faith and credit” that the Constitution requires.

*836 It is imaginable that even a good-faith review of another State’s law might still “unjustifiably infring[e] upon the legitimate interests of another State” so as to violate the Full Faith and Credit Clause. Allstate, 449 U. S., at 323 (Stevens, J., concurring in judgment). If, for example, a Texas oil company or a Texas royalty owner with an interest in a Texas lease were treated directly contrary to a stated policy of the State of Texas by a Kansas court through some honest blunder, the Constitution might bar such “parochial entrenchment” on Texas’ interests. Thomas v. Washington Gas Light Co., 448 U. S. 261, 272 (1980) (plurality opinion). 18 But this case is so distant from such a situation that I need not pursue this theoretical possibility. Even Phillips does not contend that any stated policies of other States have been plainly contravened, and the Court’s discussion is founded merely on an absence of reported decisions and the Court’s speculation of what Oklahoma or Texas courts might “most likely” do in a case like this. Ante, at 817. There is simply no demonstration here that the Kansas Supreme Court’s decision has impaired the legitimate interests of any other States or infringed on their sovereignty in the slightest.

*837 (-H

It is nevertheless possible for a State’s choice of law to violate the Constitution because it is so “totally arbitrary or ... fundamentally unfair” to a litigant that it violates the Due Process Clause. Allstate, 449 U. S., at 326 (Stevens, J., concurring in judgment). If the forum court has no connection to the lawsuit other than its jurisdiction over the parties, a decision to apply the forum State’s law might so “frustrate] the justifiable expectations of the parties” as to be unconstitutional. Id., at 327 . 19

Again, however, a constitutional claim of “unfair surprise” cannot be based merely upon an unexpected choice of a particular State’s law — it must rest on a persuasive showing of an unexpected result arrived at by application of that law. Thus, absent any conflict of laws, in terms of the results they produce, the Due Process Clause simply has not been violated. This is because the underlying theory of a choice-of-law due process claim must be that parties plan their conduct and contractual relations based upon their legitimate expec *838 tations concerning the subsequent legal consequences of their actions. For example, they might base a decision on the belief that the law of a particular State will govern. But a change in that State’s law in the interim between the execution and the performance of the contract would not violate the Due Process Clause. Nor would the Constitution be violated simply because a state court made an unanticipated ruling on a previously unanswered question of law — perhaps a choice-of-law question.

In this case it is perfectly clear that there has been no due process violation because this is a classic “false conflicts” case. 20 Phillips has not demonstrated that any significant conflicts exist merely because Oklahoma and Texas state case law is silent concerning the equitable theories developed by the Kansas courts in this litigation, or even because the language of some Oklahoma and Texas statutes suggests that those States would “most likely” reach different results. Ante, at 816-818. The Court’s heavy reliance on the characterization of the law provided by Phillips is not an adequate substitute for a neutral review. Ante, at 816, 817 (“Petitioner claims,” “petitioner shows,” “petitioner points to,” “Petitioner also points out . . .”). As is unmistakable from a review of Shutts I, the Kansas Supreme Court has examined the same laws cited by the Court today as indicative of “direct” conflicts, and construed them as supportive of the *839 Kansas result. 21 Our precedents, to say nothing of the Constitution and our statutory jurisdiction to review state-court judgments, do not permit the Court to second-guess these substantive judgments. Moreover, an independent examination demonstrates solid support for the Kansas court’s conclusions. 22

*840 The crux of my disagreement with the Court is over the standard applied to evaluate the sufficiency of allegations of choice-of-law conflicts necessary to support a constitutional *841 claim. Rather than potential, “putative,” or even “likely” conflicts, I would require demonstration of an unambiguous conflict with the established law of another State as an essential element of a constitutional choice-of-law claim. Arguments that a state court has merely applied general common-law principles in a novel manner, or reconciled arguably *842 conflicting laws erroneously in the face of unprecedented factual circumstances should not suffice to make out a constitutional issue.

In this case, the Kansas Supreme Court’s application of general principles of equity, its interpretation of the agreements, its reliance on the Commission’s regulations, 23 and its construction of general statutory terms contravened no established legal principles of other States and consequently cannot be characterized as either arbitrary or fundamentally unfair to Phillips. I therefore can find no due process violation in the Kansas court’s decision. 24

*843 I — I <1

In final analysis, the Court today may merely be expressing its disagreement with the Kansas Supreme Court’s statement that in a “nationwide class action . . . the law of the forum should be applied unless compelling reasons exist for applying a different law.” 235 Kan., at 221 , 679 P. 2d, at 1181 . Considering this statement against the background of the Kansas Supreme Court’s careful analysis in Shutts I, however, I am confident that court would agree that every state court has an obligation under the Full Faith and Credit Clause to “respect the legitimate interests of other States and avoid infringement upon their sovereignty.” Allstate, 449 U. S., at 322 (Stevens, J., concurring in judgment); see Nevada v. Hall, 440 U. S. 410, 421, 424, n. 24 (1979).

It is also agreed that “the fact that a choice-of-law decision may be unsound . . . does not necessarily implicate the federal concerns embodied in the Full Faith and Credit Clause.” Allstate, 449 U. S., at 323 (Stevens, J., concurring in judgment); see ante, at 823 (“in many situations a state court may be free to apply one of several choices of law”); Allstate, 449 U. S., at 307 (plurality opinion). When a suit involves claims connected to States other than the forum State, the Constitution requires only that the relevant laws of other States that are brought to the attention of the forum court be examined fairly prior to making a choice of law. 25 Because this Court “reviews judgments, not opinions,” Chevron U. S. A. Inc. v. Natural Resources Defense Council, Inc., 467 U. S. 837, 842 (1984), criticism of a portion of the Kan *844 sas court’s opinion taken out of context provides an insufficient basis for reversing its judgment. Unless the actual choice of Kansas law violated substantial constitutional rights of the parties, see 28 U. S. C. §2111 , our power to review judgments of state law — including the state law of choice of law — does not extend to reversal based on disagreement with the law’s application. A review of the record and the under: lying litigation here convincingly demonstrates that, despite Phillips’ protestations regarding Kansas’ development of common-law principles, no disregard for the laws of other States nor unfair application of Kansas law to the litigants has occurred. 26 Phillips has no constitutional right to avoid judgment in Kansas because it might have convinced a court in another State to develop its law differently.

I do not believe the Court should engage in detailed evaluations of various States’ laws. To the contrary, I believe our limited jurisdiction to review state-court judgments should foreclose such review. 27 Accordingly, I trust that today’s *845 decision is no more than a momentary aberration, and that the Court’s opinion will not be read as a decision to constitu-tionalize novel state-court developments in the common law whenever a litigant can claim that another State connected to the litigation “most likely” would reach a different result. The Court long ago decided that state-court choices of law are unreviewable here absent demonstration of an unambiguous conflict in the established laws of connected States. See n. 15, supra. “To hold otherwise would render it possible to bring to this court every case wherein the defeated party claimed that, the statute of another State had been construed to his detriment.” Johnson v. New York Life Ins. Co., 187 U. S. 491, 496 (1903). Having ignored this admonition today, the Court may be forced to renew its turn-of-the-century efforts to convince the bar that state-court judgments based on fair evaluations of other States’ laws are final.

Accordingly, while I join Parts I and II of the Court’s opinion, I respectfully dissent from Part III and from the judgment.

“Full Faith and Credit shall be given in each State to the public Acts, Records, and judicial Proceedings of every other State. And the Congress may by general Laws prescribe the Manner in which such Acts, Records and Proceedings shall be proved, and the Effect thereof.” U. S. Const., Art. IV, § 1. See also 28 U. S. C. § 1738 .

“No State shall . . . deprive any person of life, liberty, or property, without due process of law . . . .” U. S. Const., Amdt. 14, § 1.

The responsibilities of the Federal Power Commission were transferred to the Federal Energy Regulatory Commission in 1977. See 91 Stat. 578 , 582-584.

The relevant portion of the 1961 notice provided in full:

“Effective June 1, 1961, and until further notice, royalties paid you will be computed by excluding that portion of any price being collected subject to refund which exceeds 11 [cents] per Mcf (presently the maximum area *827 price level for increased rates as recently announced by the Federal Power Commission in its Statement of General Policy). Payment of royalty based on the balance of the sums collected will be made at such time as it is determined that the sums collected are no longer subject to refund.

“Interest owners desiring to receive payments computed currently on the full sums being collected may arrange to do so by furnishing Phillips Petroleum Company acceptable indemnity to cover their proportionate *828 part of any required refunds, plus the required interest.” Shutts I, 222 Kan., at 534 , 567 P. 2d, at 1299 .

The practice of withholding suspense royalties pending final Commission price approval was sustained in Ashland Oil & Refining Co. v. Staats, Inc., 271 F. Supp. 571, 579 (Kan. 1967), and Boutte v. Chevron Oil Co., 316 F. Supp. 524 (ED La. 1970), aff’d, 442 F. 2d 1337 (CA5 1971) (per curiam).

“Had Phillips put the ‘suspense royalties’ into a common trust fund, separate from its operating funds, to be used solely to pay either the pipeline companies or the gas royalty owners once the FPC ultimately decided the rate increase question, this case would dovetail nicely into the ‘common fund’cases.” Shutts I, 222 Kan., at 552 , 567 P. 2d, at 1311 . Accord, 235 Kan., at 201, 212 , 679 P. 2d, at 1168, 1174 . The Court criticizes Kansas’ use of the “common fund” concept as applied to these funds. Ante, at 819-820. Kansas is not alone, however, in applying the common fund concept in a class action to a pool of readily identifiable moneys placed within the court’s power by a liability determined by the lawsuit itself. See, e. g., Perlman v. First National Bank of Chicago, 15 Ill. App. 3d 784, 799-802 , 305 N. E. 2d 236, 247-250 (1973) (cited in Shutts I, 222 Kan., at 553 , 567 P. 2d, at 1311-1312 ); see also Sprague v. Ticonic National Bank, 307 U. S. 161, 166-167 (1939) (common fund may be “recovered” in litigation); Dawson, Lawyers and Involuntary Clients: Attorney Fees From Funds, 87 Harv. L. Rev. 1597 , 1615 (1974) (“Funds can also be created by the litigation itself”). Moreover, it is of course no concern of this Court how Kansas chooses to develop its state common-law doctrines. Absent some constitutional foundation plainly lacking here, the Court’s criticism of Kansas’ substantive state law is entirely gratuitous.

Phillips argued below that some distinction should be made for purposes of interest liability between royalties owed on gas sold to pipeline companies who paid the higher “suspense” price and royalties owed on gas used by Phillips itself rather than sold. Yet “Phillips acknowledges . . . that its obligation to pay royalities under the various . . . contracts exists *830 without regard to the actual disposition of the gas.” 235 Kan., at 215 , 679 P. 2d, at 1177 (emphasis added). Thus, “[b]y choosing to withhold payment Phillips was allowed the use of the suspense monies during the suspense period which rightfully belonged to the royalty owners, and the royalty owners, in turn, were deprived of receiving and using those monies during that time.” Id., at 216 , 679 P. 2d, at 1177 . Applying the same unjust enrichment theory developed in Shutts I, the Kansas Supreme Court accordingly rejected Phillips’ proffered distinction. 235 Kan., at 217 , 679 P. 2d, at 1178 . Significantly, Phillips does not claim here that even a “putative” conflict of laws might turn on this distinction. Phillips pursues the argument only to contend in a footnote that, because it never actually collected higher prices on gas that it used itself, no “fund” actually existed. Brief for Petitioner 21, n. 18. As the Kansas court noted, however, the fund at issue is the “easily computed” amount of royalties that were due the royalty owners in any case, not the moneys collected by Phillips in return for sales. 235 Kan., at 217 , 679 P. 2d, at 1178 .

Lightcap v. Mobil Oil Corp., 221 Kan. 448 , 562 P. 2d 1 , cert. denied, 434 U. S. 876 (1977); Shapiro v. Kansas Public Employees Retirement System, 216 Kan. 353, 357 , 532 P. 2d 1081, 1084 (1975).

The court cited six eases, four from the Fifth Circuit and two from the Northern District of Texas, in all of which Phillips was a named party.

The Kansas court also pointed out that “the United States Supreme Court has noted the imposition of interest on refunds ordered by the FPC is not an inappropriate means of preventing unjust enrichment. (United *831 Gas v. Callery Properties, 382 U. S. 223 ).” 222 Kan., at 562 , 567 P. 2d, at 1317-1318 .

See Kan. Stat. Ann. § 16-201 (1974) (“Creditors shall be allowed to receive interest at the rate of six percent per annum, when no other rate of interest is agreed upon”); Okla. Stat., Tit. 15, § 266 (1971) (“The legal rate of interest shall be six per cent in the absence of any contract as to the rate of interest”); Tex. Rev. Civ. Stat. Ann., Art. 5069-1.03 (Vernon 1971) (“When no specified rate of interest is agreed upon by the parties, interest at the rate of 6% per annum shall be allowed”) (all emphasis added).

The court also held that interest accruing after the entry of judgment should be determined by Kansas’ postjudgment interest statute. Kan. Stat. Ann. § 16-204 (1974). Phillips does not and could not contend that the Constitution bars a Kansas court from applying the Kansas post-judgment interest statute to judgments entered by Kansas courts. Such statutes demonstrate an irrefutable state interest in the force carried by judgments entered by a State’s own courts. See also Klaxon Co. v. Stentor Electric Mfg. Co., 313 U. S. 487, 498 (1941) (State interest statutes concern “an incidental item of damages, interest, with respect to which courts at the forum have commonly been free to apply their own or some other law as they see fit”).

The court noted that the “ ‘United States Rule’ is also followed in Oklahoma and Texas,” and that Phillips had “raised and lost” its contention of waiver in a similar case in Texas. 222 Kan., at 568 , 567 P. 2d, at 1321 , citing Phillips Petroleum Co. v. Riverview Gas Compression Co., 409 F. Supp. 486 (ND Tex. 1976). Moreover, because the relevant Oklahoma statute expressly stated that payment of a principal sum must be accepted “as such” to support a finding of waiver, Okla. Stat., Tit. 23, § 8 (1971), the statute was inapplicable here inasmuch as the royalty payments were not so accepted. 222 Kan., at 568 , 567 P. 2d, at 1321 .

The only apparently new argument raised by Phillips in Shutts II was that it should not be liable for interest to a subclass of the affected royalty owners whose direct contractual agreement for royalties was with other producers who sold their gas to Phillips under a separate agreement. Although Phillips assumed the obligation to pay royalties directly to the royalty owners in these separate agreements, the separate agreements also stated that if a suspended price increase were ultimately approved by the Commission, Phillips would pay the other producers additional money “without interest.” Phillips argued that this “without interest” clause barred interest to the royalty owners as well as to the other producers. The Kansas Supreme Court rejected this argument, however, because the royalty owners were not parties to the separate agreements and because no consideration was paid to the royalty owners by Phillips in return for this purported waiver of interest. 235 Kan., at 220 , 679 P. 2d, at 1180 . “[Tjhese provisions, entered into between Phillips and the producers, cannot unilaterally deprive royalty owners of interest which they would otherwise be entitled to receivé under casinghead gas contracts in which the provisions do not appear.” Ibid.

See 28 U. S. C. § 1257 : “Final judgments or decrees rendered by the highest court of a State . . . may be reviewed by the Supreme Court. . . (3) [b]y writ of certiorari. . . where any title, right, privilege or immunity is specially set up or claimed under the Constitution” (emphasis added).

This principle was settled in a number of cases decided on either side of the turn of this century. See, e. g., Pennsylvania Fire Ins. Co. v. Gold Issue Mining & Milling Co., 243 U. S. 93, 96 (1917); Western Life Indemnity Co. v. Rupp, 235 U. S. 261, 275 (1914); Louisville & Nashville R. Co. v. Melton, 218 U. S. 36, 51, 52 (1910); Allen v. Alleghany Co., 196 U. S. 458, 464-465 (1905); Johnson v. New York Life Ins. Co., 187 U. S. 491, 496 (1903); Glenn v. Garth, 147 U. S. 360, 367-370 (1893).

Cf. Guaranty Trust Co. v. New York, 326 U. S. 99, 109 (1945) (federal courts should apply state law in furtherance of the goal that “the outcome of the litigation in the federal court should be substantially the same ... as it would be if tried in a State court”).

The Kansas court also stated that Kansas’ statutory class-action requirements would “not be fulfilled” if “liability is to be determined according to varying and inconsistent state laws.” 222 Kan., at 557 , 567 P. 2d, at 1314 . This belies any notion that the Kansas court plans to “bootstrap,” ante, at 821, its choice-of-law decisions onto its assertion of jurisdiction over multistate actions; precisely the opposite is suggested.

As I noted in Allstate, however, the litigant challenging a court’s choice of law clearly “bears the burden of establishing” a constitutional infringement. 449 U. S., at 325, n. 13 . “Prima facie every state is entitled to enforce in its own courts its own statutes .... One who challenges that right. . . assumes the burden of showing, upon some rational basis, that of the conflicting interests involved those of the foreign state are superior to those of the forum.” Alaska Packers Assn. v. Industrial Accident Comm’n, 294 U. S. 532, 547 (1935). See Western Life Indemnity Co. v. Rupp, 235 U. S., at 275 (“It does not appear that the court’s attention was called to any decision by the courts of Illinois placing a different construction, or indeed any construction, upon the section in question. If such decision existed, it was incumbent upon defendant to prove it”). Thus, if a litigant has failed to call a state court’s attention to relevant law in other jurisdictions, it cannot raise that law here to create a constitutional issue.

I noted in Allstate that choice of forum law might also violate the Due Process Clause in other ways, such as by irrationally favoring residents over nonresidents or representing a “dramatic departure from the rule that obtains in most American jurisdictions. ” 449 U. S., at 327 . The first possibility is not applicable here; all royalty owners were treated exactly alike in the Kansas court’s analysis. As for the second possibility, a “dramatic departure” must be distinguished from the application of general equitable principles to address new situations. Phillips may criticize Kansas’ allegedly “unique notions of contract and oil and gas law,” Brief for Petitioner 33, but such is not a constitutional objection. State courts, like this Court, constantly must apply and develop general legal principles to accommodate novel factual circumstances with the overarching goal of achieving a just result. Today’s decision, for example, newly establishes lawful jurisdiction over a multistate plaintiffs’ class action that Phillips likely could not have anticipated 15 years ago. Absent some demonstration of a departure from some clear rule obtaining in other States, an argument merely that “[n]o other state ever has hinted” at Kansas’ result, id., at 32, is unavailing.

“ ‘[F]alse conflict’ really means ‘no conflict of laws.’ If the laws of both states relevant to the set of facts are the same, or would produce the same decision in the lawsuit, there is no real conflict between them.” R. Leflar, American Conflicts Law § 93, p. 188 (3d ed. 1977). See also E. Scoles & P. Hay, Conflict of Laws §2.6, p. 17 (1982) (“A ‘false conflict’ exists when the potentially applicable laws do not differ”). The absence of any direct conflicts here distinguishes this case from decisions such as Home Ins. Co. v. Dick, 281 U. S. 397 (1930), and John Hancock Mutual Life Ins. Co. v. Yates, 299 U. S. 178 (1936), where the interstate legal conflicts were clear, conceded, and dispositive.

In Shutts II the Kansas Supreme Court noted that “the legal issues presented are substantially the same” as in Shutts I, and that “[w]hile these issues are complex they were thoroughly reviewed in Shutts I.” 235 Kan., at 211 , 679 P. 2d, at 1174 . The court then addressed the award and rate of interest as “damages to compensate the plaintiffs for the unjust enrichment derived by Phillips from the use of the plaintiffs’ money,” and concluded that “[i]n the instant case Phillips has not satisfactorily established why this court should not apply the rule enunciated in Shutts I” respecting this claim. Id., at 221 , 679 P. 2d, at 1181 . Two sentences later in the same paragraph, the court made the broad statement that its forum law should apply absent “compelling reason.” The only fair reading of this statement in context is that the Kansas court in Shutts II adopted its multistate choice-of-law survey performed in Shutts I, and properly placed the burden on Phillips, see n. 18, supra, to show why the Shutts I conclusions should be reexamined. Even if this were ambiguous, this Court should give the Kansas Supreme Court the benefit of the doubt when reviewing its judgment. Thus, I frankly do not understand the Court’s summary rejection of that comet’s attempt to incorporate Shutts I. Ante, at 822, n. 8. As for the implication in that same footnote that the choice-of-law discussion in Shutts I may have been erroneous on the merits, the statement that the Kansas court “did not follow contrary Texas precedent” (emphasis added), is simply wrong. See n. 22, infra.

The Court provides a list of “putative conflicts” ante, at 816-818. The errors and omissions apparent in the Court’s discussion demonstrate the dangers of relying on characterizations of state law provided by an interested party.

1. Although there technically may be “no recorded Oklahoma decision dealing with interest liability for suspended royalties," ante, at 816-817 (emphasis added), Oklahoma law expressly provides that the damages “caused by the breach of an obligation to pay money only is deemed to be the amount due by the terms of the obligation, with interest thereon.” Okla. Stat., Tit. 23, § 22 (1981) (emphasis added); see also § 6 (“Any person who is entitled to recover damages certain, or capable of being made certain by calculation,... is entitled also to recover interest thereon”). The *840 Oklahoma Supreme Court has specifically held that oil field royalty owners may sue as a class to recover royalties due them and may recover interest on the amount of recovery. West Edmond Hunton Line Unit v. Young, 325 P. 2d 1047 (1958).

2. No authority in the Court’s string citation regarding Oklahoma’s 6% statutory interest rate supports the statement that Oklahoma would “most likely” impose that rate in a suit such as this. Ante, at 817. The constitutional and statutory provisions merely provide that “in the absence of any contract” the rate is indeed 6%. Okla. Stat. Ann., Tit. 15, §266 (1981). The cited judicial decisions merely hold that interest is recoverable on certain obligations, including royalties due to oil field royalty owners, without discussing applicable limitations on the rate.

After examining these Oklahoma authorities, the Kansas Supreme Court found the Oklahoma statutory rate, as well as that of Texas and Kansas, inapplicable by its own terms, because here Phillips had contractually agreed to the higher federal rate. 235 Kan., at 220-221 , 679 P. 2d, at 1180 ; 222 Kan., at 563-565 , 567 P. 2d, at 1318-1319 . No reported Oklahoma decision contradicts this judgment, and the express terms of the Oklahoma statute permit it. See also McAnally v. Ideal Federal Credit Union, 428 P. 2d 322, 326 (Okla. 1967) (where federal law provides for interest in excess of 12% per year, that rate “must govern” over Oklahoma statutory rate).

3. The Kansas court similarly reviewed Texas’ 6% interest statute and found that Phillips’ contractual agreement to the FPC rate rendered the statute inapplicable. 235 Kan., at 220 , 679 P. 2d, at 1180 ; 222 Kan., at 563-565 , 567 P. 2d, at 1318-1319 . It is true that Texas has not awarded suspense royalty interest at a rate higher than 6% — it is equally plain from the cited cases that no higher rate has been sought. Texas courts have, however, specifically permitted recovery at higher‘rates when a contract, even an implied or oral contract, evidences agreement to such rates. Preston Farm & Ranch Supply, Inc. v. Bio-Zyme Enterprises, 625 S. W. 2d 295 (Tex. 1981); Moody v. Main Bank of Houston, 667 S. W. 2d 613 (Tex. App. 1984).

4. While noting Phillips’ reliance on an Oklahoma statute stating that “accepting payment of the whole principal, as such, waives all claim to interest,” Okla. Stat. Ann., Tit. 23, § 8 (1981), the Court itself demonstrates that this statute’s application here is open to question, by citing as “cf.” Webster Drilling Co. v. Sterling Oil of Okla., Inc., 376 P. 2d 236, 238 *841 (Okla. 1962). In that case, the Oklahoma Supreme Court held that when a right to interest is “based upon a contract, the interest has become ‘a substantive part of the debt itself,’ ” and Title 28, § 8, “is not applicable.” Id., at 238 (citation omitted). The claim to interest upheld in Webster Drilling was based on an implied contract, exactly as the Kansas Supreme Court found in Shutts I. 222 Kan., at 562, 565 , 567 P. 2d, at 1317, 1319 . The Kansas Supreme Court explicitly considered Title 23, § 8, and relied on Webster Drilling to find it inapplicable. 222 Kan., at 568 , 567 P. 2d, at 1321 . It is therefore impossible to suggest, as the Court does, that the Kansas court “ignor[ed]” the Oklahoma statute. Ante, at 817.

5. Finally, the Court plainly misconstrues Texas law by suggesting that a mere “offer” to pay suspended royalties in return for an indemnity agreement would, by itself, excuse interest. In the federal decision cited by the Court, which mentions no Texas cases at the relevant pages, Phillips Petroleum Co. v. Riverside Gas Co., 409 F. Supp., at 495-496 , indemnity agreements were actually entered into. Id., at 490. The Fifth Circuit case relied on for authority, which did cite Texas cases, states that an “unconditional offer to give up possession of a disputed fund” is necessary before a bar to interest is created. Phillips Petroleum Co. v. Adams, 513 F. 2d 355 , 370 (1975) (emphasis added). The Texas Supreme Court has subsequently agreed that Adams correctly stated Texas law. Phillips Petroleum Co. v. Stahl Petroleum Co., 569 S. W. 2d 480, 487 (1978). See also Fuller v. Phillips Petroleum Co., 408 F. Supp. 643, 646 (ND Tex. 1976) (entering indemnity agreement terminates interest liability because Phillips “lost the reasonably free use of the money”). No indemnity agreements were entered into by the plaintiffs here, however, and as the Kansas Supreme Court found, Phillips’ indemnity offer was not “unconditional”— to the contrary, it was “far more stringent than the corporate undertaking Phillips filed with the FPC.” 222 Kan., at 567 , 567 P. 2d, at 1320 . It is also uncontested that Phillips continued to use freely the unpaid suspense royalties long after its “burdensome” conditions were not accepted by the royalty owners. Id., at 566 , 567 P. 2d, at 1320 . The Court errs drastically by relying on what one Federal District Court “appears” to have held to sustain a constitutional choice-of-law claim.

The fact that the Kansas court rejected its own State’s statute in favor of the uniform federal interest rate, to which it found Phillips had contractually agreed, demonstrates the absence of parochialism from its decision. There is absolutely no indication that Texas or Oklahoma courts would have decided differently had the same claim been presented there.

Neither Phillips nor the Court contends that Kansas cannot constitutionally apply its own laws to the claims of Kansas residents, even though the leased land may lie in other States and no other apparent connection to Kansas may exist. Phillips has done business in Kansas throughout the years relevant to this litigation and it seems unarguable that application of Kansas law, or indeed the law of any of the 50 States where royalty owners reside, to the claims of at least some of the plaintiff class members was thus “perceived as possible” by Phillips “at the time of contracting.” Allstate, 449 U. S., at 331, n. 24 (Stevens, J., concurring in judgment); see id., at 316-318 , and n. 22. It was also possible, of course, that any number of royalty owners might have moved to Kansas in the years Phillips held their suspense royalties, and that Kansas has a substantial interest in seeing its residents treated fairly when they invoke the jurisdiction of its courts. See Weinberg, Conflicts Cases and the Problem of Relevant Time, 10 Hofstra L. Rev. 1023 , 1040-1043 (1982). Because Phillips must have anticipated application of Kansas law to some claims, the eventual geographic distribution of royalty owners’ residences goes only to “likelihood” and not to fairness of the application of Kansas law. Allstate, 449 U. S., at 331, n. 24 (Stevens, J., concurring in judgment). Additionally, it is easy enough for national firms like Phillips to make clear their expectations by placing express choice-of-law clauses in their contracts. See Allstate, 449 U. S., at 318, n. 24 ; id., at 324, 328 (Stevens, J., concurring in judgment); Clay v. Sun Ins. Office, Ltd., 377 U. S. 179, 182 (1964). No such clauses are present here, however.

See Allstate, 449 U. S., at 326 (Stevens, J., concurring in judgment) (footnote omitted): “I question whether a judge’s decision to apply the law of his own State could ever be described as wholly irrational. For judges are presumably familiar with their own state law and may find it difficult and time consuming to discover and apply correctly the law of another State. The forum State’s interest in fair and efficient administration of justice is therefore sufficient, in my judgment, to attach a presumption of validity to a forum State’s decision to apply its own law to a dispute over which it has jurisdiction.”

Accord, 3 H. Newberg, Newberg on Class Actions §13.28, p. 63 (2d ed. 1985) (“the Kansas court in Shutts II may have committed only harmless error in applying its own law because there appears to be no significant conflict of laws among the states involved”).

The Court’s decision in Allstate has been criticized on the ground that there may well have been no true conflict of laws present, and, therefore, no need for extended constitutional discussion. See Weintraub, Who’s Afraid of Constitutional Limitations on Choice of Law?, 10 Hofstra L. Rev. 17 , 18-24 (1981). As I have demonstrated, the Court is once again open to this criticism.

Indeed, unless our review is restricted to cases in which conflicts are unambiguous, the Court will constantly run the risk of misconstruing the common law of any number of States. For example, the Kansas Supreme Court has already decided that Oklahoma would not apply its statutory interest rates where there is evidence of a contractual agreement to a different rate, and that such an agreement is present here. 235 Kan., at 220 , 679 P. 2d, at 1180 ; 222 Kan., at 562-565 , 567 P. 2d, at 1318-1319 . Yet today the Court speculates that Oklahoma “would most likely apply” its statutory rates in this lawsuit. Ante, at 817. Since this Court has no more authority to resolve such issues of Oklahoma law than does the Kansas Supreme Court, however, the latter court remains free to abide by its former judgment.