delivered the opinion of the Court.
In this case, we must determine whether a proposed class meets the requirements for class certification under Texas Rule of Civil Procedure 42. The trial court certified a class consisting of gas royalty owners in Crockett County who claim that lessees breached an implied duty to “obtain the best current price reasonably obtainable.” The court of appeals affirmed.
I
Union Pacific Resources Group (UPRG) leases land in Crockett County, produces gas from that land, and pays the lessors a royalty on its gas production. This suit was filed by several royalty interest owners who alleged that UPRG had underpaid royalties. Specifically, they alleged that UPRG sold the gas to affiliated companies at preferential index prices and calculated royalty payments on the basis of the indexes used for the inter-affiliate sales, and that the UPRG affiliates then sold the gas to third parties at higher prices. The plaintiffs brought this suit on behalf of a purported class of UPRG royalty owners (collectively, the royalty owners) against UPRG and several of its affiliates (collectively, Union Pacific) for breach of an implied covenant to “reasonably market” the gas and “to obtain the best current price reasonably obtainable” for it. The royalty owners also alleged that UPRG paid “unreasonable and excessive rates” to its marketing affiliates “to market, gather, compress, treat, and transport” the gas, which increased the affiliates’ profit and “de-creas[ed] the amount of royalty received by Plaintiffs and class members.”
Union Pacific objected to class certification, arguing that not all the leases in the purported class contained an implied covenant to reasonably market the gas. Union *71 Pacific conceded that it might have an implied duty to obtain the highest price reasonably available on those leases that calculate royalty payments based on the proceeds actually received by the lessee. However, it argued that it had no such duty on those leases that base royalty payments on the current market price of the gas. For those leases, royalty payments are based upon fair market value regardless of what price the lessees actually obtain for the gas.
Union Pacific does not dispute that an appropriate sale' price under a market-value lease may often be roughly equivalent to an appropriate sale price under a proceeds lease, but contends that even though the two prices may be similar, they are independent of each other and are subject to different methods of evaluation. Market value is generally determined by comparing the sale price to other sales “comparable in time, quality, quantity, and availability of marketing outlets.”
Heritage Res., Inc. v. NationsBank,
Because the purported class included both market-value and proceeds leases, Union Pacific argued that the royalty owners’ claims were too dissimilar to meet the initial certification prerequisites. See Tex.R. Civ. P. 42. Notwithstanding Union Pacific’s objections, the trial court certified a class encompassing royalty owners of gas-producing leases in Crockett County in which “the gas was purchased by ... [an] affiliate of Union Pacific Resources Group,” with the exclusion of “any royalty owners whose leases specifically allow for the type of affiliate transactions or index pricing used by the Defendants in this case.” The propriety of the marketing fee charged to Union Pacific by its affiliates was included in the issues to be addressed on a class-wide basis, but no other post-production charges were included.
Union Pacific appealed the certification order. While the appeal was pending, this Court decided
Southwestern Refining Co. v. Bernal,
After the trial court developed its trial plan and the case returned to the court of appeals, this Court decided
Yza-guirre,
which distinguished between market-value leases and proceeds leases.
Yza-guirre,
The court of appeals acknowledged that “both parties urge that the recent Texas Supreme Court case of
Yzaguirre v. KCS Resources, Inc.
supports the merits of their positions on implied covenants (or lack thereof),” but held that it was “unnecessary to address these contentions” because “an appellate court’s review of a class certification order should not include examining the merits of claims or defenses asserted by the parties.”
II
Because this is an interlocutory appeal from an order certifying a class action and there was no dissent in the court of appeals, this Court has jurisdiction only when the court of appeals “holds differently from a prior decision of another court of appeals or of the supreme court.” Tex. Gov’t Code §§ 22.225(b)(3), (c); 22.001(a)(2). Union Pacific asserts that the court of appeals’ failure to analyze Yzaguirre’s impact on the Rule 42 requirements conflicts with
Bernal’s
requirement that courts require certification orders to demonstrate “actual, not presumed” conformance with the requirements of Rule 42.
Bernal,
We have noted before that “ such issues as commonality, typicality, superiority, and predominance are at least tangentially related to the merits;
i.e.,
one cannot know whether a representative’s claim is ‘typical’ of those of the class without knowing something about the merits.”
In re Alford Chevroletr-Geo,
Ill
In order to maintain a class action, Rule 42 requires that plaintiffs meet each of the requirements under 42(a) and at least one of the requirements under 42(b). Here, the trial court found that the royalty owners had demonstrated compliance with all four of the initial requirements of 42(a), including (1) numerosity, that “the class is so numerous that joinder of all members is impracticable”; (2) commonality, that “there are questions of law or fact common to the class”; (8) typicality, that “the claims or defenses of the representative parties are typical of the claims or defenses of the class”; and (4) adequacy of representation, that “the representative parties will fairly and adequately protect the interests of the class.” Tex.R. Civ. P. 42(a). The court also held that the royalty owners had met three of the 42(b) requirements, including 42(b)(1)(A) (risk of inconsistent adjudications), (b)(2) (need for declaratory/injunctive relief), and (b)(4) (predominance of common questions). Tex.R. Civ. P. 42(b).
We turn first to the commonality requirement. In its trial plan, the trial court identified what it believed to be eleven common issues:
(1) Did [a] Union Pacific marketing affiliate purchase from the Union Pacific producing affiliate the gas that [the] Union Pacific producing affiliate produced from the lands under which the class members own a royalty interest?
(2) If so, were the class members paid royalty based on the price that the Union Pacific producing affiliate received for its gas from the Union Pacific marketing affiliate, instead of on the price that the Union Pacific marketing affiliate received in the subsequent sale of the gas to independent third-party purchasers?
(3) If so, was the price that the Union Pacific marketing affiliate received for the gas from independent third-party purchasers higher than the amount it paid the Union Pacific producing affiliate for the gas?
(4) If so, did this sale of gas for a price below the amount actually received from third parties breach the implied covenant to reasonably market?
(5) If so, what are the damages proximately caused by this breach of the implied covenant to reasonably market?
(6) Was a marketing fee assessed against the class members? 1
(7) If so, did the marketing fee breach the implied covenant to reasonably market?
(8) If so, what are the damages proximately caused by this breach of the implied covenant to reasonably market?
(9) Should any or all of the defendants be regarded as one and the same, i.e. should their corporate separateness be disregarded because they have (a) operated as alter egos of one another; or (b) operated as a single business enterprise; or (c) used the corporate fiction as a means to perpetuate a fraud or to evade a legal obligation?
(10) Some of the defendants have pled modification, ratification, waiver, estop-pel, laches, other defenses, the failure to meet contractual conditions precedent, *74 and course of performance. Which, if any, are viable defenses in this case? (11) Which, if any, should be submitted to the jury based on the evidence, and for which defendants?
In evaluating whether these issues satisfy the commonality requirement, we note that “the threshold for commonality is not high.”
Phillips Petroleum Co. v. Bowden,
Even under the commonality requirement’s low threshold, we conclude that not one of the enumerated issues both “inheres in the complaints of all class members” and is “subject to generalized proof.” Questions (4), (5), (7), and (8) ask specifically whether the defendants “breached the implied covenant to reasonably market” by failing to obtain arm’s length prices. Since
Yzaguirre
held that market-value leases have no such implied covenant, these questions cannot satisfy the commonality requirement in a class that includes both proceeds leases and market-value leases. Questions (1), (2), (3), (6), and (9) question whether UPRG engaged in a sham transaction by charging its affiliates a preferential price. Question (3), though it appears to ask whether the royalty owners themselves were charged a marketing fee, actually questions the propriety of a marketing fee allegedly paid by Union Pacific to its affiliates. The royalty owners argue that the marketing affiliate did nothing to earn the fee, but that the fee was a sham which only served to decrease the amount of money that Union Pacific appeared to receive from its sales. Again, however, these inter-affiliate transactions do not determine the amounts owed under market-value leases — under a market-value lease the producer need not attempt to obtain the best price available.
Yzaguirre,
Thus, the question under a market-value lease would be whether the lessees paid royalties based on market value, while the question under a proceeds lease would be whether the proceeds actually received by the lessee were a fraud or a sham. These are different inquiries. Under some circumstances, a reasonable marketer may sell gas for more or less than market value, as when a lease is subject to a long-term purchase contract.
See, e.g., Yza-guirre,
*75 The royalty owners argue that the distinction between market-value leases and proceeds leases is immaterial here. Specifically, they assert that in this case market value is equal to the best price reasonably attainable, and that both are equal to the amount that Union Pacific affiliates received from third-party purchasers. Whether these prices are in fact equal, however, is a question that remains to be proven. The question before us at this time is merely whether such unity of value can be established through common proof, and we hold that it cannot.
This lack of commonality becomes clear if we hypothesize that the royalty owners are able to establish at trial that the affiliate transactions were in fact a sham. Could the trial court then infer that the third-party sale price represented both market value and the best price reasonably attainable? No, because the marketing affiliates may have been able to receive a price higher than market value, either through a long-term contract as in
Yza-guirre
or simply through extraordinary negotiation and sales efforts that exceeded the results reasonably obtainable by an ordinary lessee. Under this scenario, the proceeds owners would be entitled to share in the lessee’s good fortune, while market-value owners would not be.
Vela,
Finally, Questions (10) and (11) deal with possible defenses, including the catchall category of “other defenses.” The royalty owners have not argued that these two issues are “applicable to the class as a whole” and “subject to generalized proof.”
Nichols,
IV
We conclude that certification is improper because none of the issues identified in the trial plan satisfy the commonality requirement of Rule 42. Accordingly, we need not consider Union Pacific’s additional challenges to the other certification prerequisites. We reverse the court of appeals’ judgment and remand this case to the trial court for further proceedings consistent with this opinion.
Notes
. As noted above, there was no allegation that the royalty owners themselves were asked to pay the marketing fee; rather, the fee was allegedly paid by Union Pacific to its affiliates and was included in the royalty owners’ allegations of improper affiliate transactions.
