Natural Gas Act Field-Preempts State Consumer-Protection Claims That Directly Target Interstate Wholesale Gas Sales (Even If Framed as Retail Harm)

1. Introduction

Case: Mehl v. BP Energy Company (consolidated in In re: Winter Storm Uri Natural Gas Litigation)
Court: U.S. Court of Appeals for the Tenth Circuit
Date: July 6, 2026
Parties: Kansas residential natural-gas consumers (Plaintiffs-Appellants) vs. interstate natural-gas wholesalers/producers/suppliers (Defendants-Appellees).

The consolidated class actions arose from Winter Storm Uri (February 2021), when extreme cold and supply disruptions led to unprecedented spikes in wholesale natural-gas prices. Kansas local distribution companies (LDCs) purchased gas from interstate wholesalers and passed extraordinary costs through to retail customers under state-approved cost-recovery mechanisms.

Plaintiffs sued wholesalers under the Kansas Consumer Protection Act (KCPA), alleging “profiteering” and “unconscionable” pricing—particularly that wholesalers curtailed “baseload” supply and forced distributors into the high-priced spot market. The central legal question was whether the Natural Gas Act (NGA), under which the Federal Energy Regulatory Commission (FERC) regulates interstate wholesale natural-gas sales, preempts these state-law consumer claims.

2. Summary of the Opinion

The Tenth Circuit affirmed dismissal, holding the NGA field-preempts Plaintiffs’ KCPA claims because the lawsuits directly target interstate wholesale sales and practices—a domain Congress “occupied” and placed under FERC’s exclusive jurisdiction. The court treated Plaintiffs’ “retail harm” framing as insufficient: retail price increases were a downstream consequence of the challenged wholesale prices, not an independent retail-market wrong.

The panel relied heavily on the Supreme Court’s “target” (or “aim”) analysis in Oneok, Inc. v. Learjet, Inc., concluding that unlike Oneok (retail purchasers challenging index manipulation affecting both retail and wholesale markets), these claims were aimed at wholesale contracting and wholesale pricing itself.

3. Analysis

3.1 Precedents Cited

Schneidewind v. ANR Pipeline Co., 485 U.S. 293 (1988)

Schneidewind supplies the foundational proposition the Tenth Circuit treats as controlling: it is “well settled” that “Congress occupied the field of matters relating to wholesale sales and transportation of natural gas in interstate commerce.” The panel uses Schneidewind as the anchor for field preemption: when a state-law claim seeks to regulate (in practical effect) the very sphere FERC exclusively governs, it cannot proceed.

Oneok, Inc. v. Learjet, Inc., 575 U.S. 373 (2015)

Oneok is the opinion’s main interpretive tool. The Tenth Circuit extracts two key teachings:

  • The “target” matters: courts must ask what the state law (or lawsuit) is aimed at—“measures aimed directly at interstate purchasers and wholesales for resale” are preempted; those “aimed at subjects left to the States” are not.
  • Interconnected markets do not collapse jurisdiction: because wholesale and retail markets affect each other, preemption cannot turn merely on “ripple effects.” Otherwise, every case could be reframed as targeting the other market.

Applying Oneok, the court distinguishes Plaintiffs’ KCPA claims from the antitrust claims upheld there. In Oneok, plaintiffs challenged “background marketplace conditions” (index manipulation) that independently affected both jurisdictional and nonjurisdictional sales. Here, by contrast, Plaintiffs allege wholesalers “cut” baseload supplies and sold spot gas at “exorbitant” prices—conduct occurring wholly within the wholesale market and affecting consumers only because LDCs passed through wholesale costs.

FERC v. Electric Power Supply Association (EPSA), 577 U.S. 260 (2016)

Although an electricity case under the Federal Power Act (FPA), EPSA reinforces a parallel principle the Tenth Circuit treats as a “corollary” for gas regulation: federal regulation of a wholesale market is not invalid “just because it affects—even substantially—the quantity or terms of retail sales.” The panel uses EPSA to rebut Plaintiffs’ argument that severe retail impacts during an emergency shift jurisdiction back to the States.

Hughes v. Talen Energy Mktg., 578 U.S. 150 (2016)

Hughes is cited for methodological support: because the FPA and NGA divide jurisdiction similarly, the Supreme Court “routinely relied on NGA cases in determining the scope of the FPA, and vice versa.” This justifies importing the wholesale/retail “not hermetically sealed” reasoning from EPSA into the NGA setting.

Northern Natural Gas Co. v. State Corporation Commission of Kansas, 372 U.S. 84 (1963)

Referenced via Oneok, Northern Natural exemplifies state regulation that is preempted because it is directed specifically at wholesale purchasing in a manner intruding into FERC’s field. The Tenth Circuit contrasts Plaintiffs’ case with Oneok by underscoring that the KCPA claims here function more like a direct attack on wholesale transactions than a general market-wide rule incidentally touching wholesale activity.

English v. Gen. Elec. Co., 496 U.S. 72 (1990)

Plaintiffs argued that because the KCPA is a generally applicable consumer statute, it should escape preemption. The court uses English to reject a categorical “general law” safe harbor. Even a generally applicable cause of action can be preempted if the particular claim is sufficiently related to the federally occupied field. Thus, the court frames preemption as claim-specific, not statute-wide.

Other cited authorities shaping the framework

  • US Airways, Inc. v. O'Donnell, 627 F.3d 1318 (10th Cir. 2010): provides the Tenth Circuit’s taxonomy of express, field, and conflict preemption.
  • Ark. Elec. Co-op Corp. v. Ark. Pub. Serv. Comm'n, 461 U.S. 375 (1983), and Ill. Nat. Gas Co. v. Cent. Ill. Pub. Serv. Co., 314 U.S. 498 (1942): cited for the breadth of FERC’s wholesale-rate authority.
  • Panhandle E. Pipe Line Co. v. Pub. Serv. Comm'n of Ind., 332 U.S. 507 (1947): cited for the state side of the line—direct sales for consumptive use and local distribution.
  • Nakkumpun v. Taylor, 782 F.3d 1142 (10th Cir. 2015): standard of review for dismissal.
  • In re W. States Wholesale Nat. Gas Antitrust Litig., 715 F.3d 716 (9th Cir. 2013), aff'd sub nom., Oneok, Inc. v. Learjet, Inc., 575 U.S. 373 (2015): factual and procedural background for Oneok.

3.2 Legal Reasoning

(a) The NGA’s jurisdictional line: wholesale vs. retail

The court grounds its analysis in the NGA’s structure:

  • FERC jurisdiction covers “the sale in interstate commerce of natural gas for resale” and “transportation of natural gas in interstate commerce.” (15 U.S.C. § 717(b))
  • FERC ensures wholesale rates and related “practice[s]” and “contract[s] affecting such rate” are “just and reasonable.” (15 U.S.C. §§ 717c(a), 717d(a))
  • States retain authority over “local distribution” and direct-to-consumer retail sales. (15 U.S.C. § 717(b); see also cited Panhandle E. Pipe Line Co. v. Pub. Serv. Comm'n of Ind.)

(b) Why the claims were field-preempted: they “aim” at wholesale conduct

The decisive move is the court’s characterization of what Plaintiffs’ theory actually challenges: the alleged wrongful act is that wholesalers curtailed baseload supplies and then sold gas at “unconscionable” spot prices to distributors during the emergency. Those are interstate wholesale transactions—the very area the NGA reserves to FERC.

The panel rejects Plaintiffs’ effort to rest jurisdiction on downstream consequences (“natural consequences at the retail level”). Using Oneok, it reasons that cross-market effects are inevitable in energy markets; therefore, the legal test cannot be whether retail prices were harmed, but whether the lawsuit’s direct target is jurisdictional wholesale sales or state-regulated retail activity.

(c) Emergency conditions do not reallocate jurisdiction

Plaintiffs implicitly argued that the extraordinary nature of Winter Storm Uri and the magnitude of retail impacts should matter. Invoking EPSA, the court treats substantial retail effects as insufficient to reclassify wholesale regulation: wholesale and retail markets “are not hermetically sealed,” and wholesale transactions have “natural consequences” downstream. The presence of a disaster does not expand state authority into the federally occupied wholesale field.

(d) General applicability of the KCPA does not save claim-specific intrusions

Plaintiffs argued the KCPA is broad (like antitrust law in Oneok) and thus should not be preempted. The court answers in two steps:

  1. Oneok treated general applicability as supportive but not dispositive; it still examined the “lawsuits” and what they sought to regulate.
  2. English v. Gen. Elec. Co. confirms a claim-by-claim inquiry: even generally applicable laws can be preempted if the particular claim intrudes directly into the federally occupied field.

The court also clarifies that its holding does not imply the NGA preempts the KCPA “in its entirety”; it preempts this theory of liability because it would apply the KCPA as a mechanism to police wholesale pricing and supply practices.

(e) Conflict preemption intentionally left undecided

Defendants argued conflict preemption as well (notably pointing to FERC’s post-storm investigation and lack of enforcement action). The court did not reach that issue because field preemption resolved the case. This is significant: the holding does not depend on proving an actual conflict with a particular FERC order in the record; it rests on exclusive federal occupation of the field of interstate wholesale sales.

3.3 Impact

(1) A clear Tenth Circuit rule for Winter Storm Uri-style consumer suits

The decision makes it difficult—often impossible—for end-use consumers in Kansas (and likely within the Tenth Circuit more broadly) to use state consumer-protection statutes to recover extraordinary retail pass-through costs by suing upstream interstate wholesalers when the alleged wrong is effectively “wholesale price gouging” or “wholesale supply manipulation.”

(2) Litigation “targeting” becomes the central pleading battleground

Because the court’s analysis is “aim”/“target”-driven, future plaintiffs will likely attempt to plead claims as directed to nonjurisdictional conduct (e.g., misrepresentations, deceptive reporting, or other practices that can be characterized as broader “marketplace conditions”). Defendants, in turn, will emphasize that the requested relief would functionally require a court to evaluate whether wholesale rates, wholesale terms, or wholesale practices were “unjust” or “unconscionable”—a task the NGA assigns to FERC.

(3) Reinforcement of federal uniformity in wholesale energy markets

The ruling strengthens nationwide uniformity goals underlying the NGA by preventing state-by-state consumer litigation from imposing variable standards (e.g., “unconscionability” under different state statutes) on interstate wholesale contracting during volatile events. That uniformity rationale is especially salient in crisis pricing scenarios where, if state-law claims proceeded, wholesalers could face conflicting legal commands across multiple jurisdictions for the same interstate market conduct.

(4) Channeling of remedies toward federal mechanisms and state regulation of retail recovery

Practically, the decision channels disputes over wholesale storm pricing toward: (i) FERC complaint processes and enforcement authorities, and (ii) state utility commission proceedings addressing retail cost recovery, securitization, and amortization. The opinion’s reference to FERC’s post-Uri review (with no enforcement action) signals that the federal system contemplated by the NGA includes federal investigatory discretion as part of the regime Congress chose.

4. Complex Concepts Simplified

Field preemption
A type of preemption where federal law is so comprehensive in an area that states cannot regulate within that “field,” even if the state rule does not directly contradict a specific federal rule.
Jurisdictional vs. nonjurisdictional sales (under the NGA)
“Jurisdictional” generally means interstate wholesale sales “for resale,” regulated by FERC. “Nonjurisdictional” includes retail sales to end users and local distribution—typically regulated by states.
“Target” or “aim” test (from Oneok, Inc. v. Learjet, Inc.)
Because wholesale and retail markets influence each other, courts ask: what is the lawsuit really trying to regulate? If it targets wholesale sales/practices, it is preempted; if it targets state-regulated retail practices or broader market conduct not confined to wholesale rate-setting, it may survive.
Baseload gas vs. spot gas
“Baseload” refers to planned, longer-term supply arrangements (often indexed monthly) intended to meet expected demand; “spot” purchases are short-notice buys near the time of use, often more volatile and expensive during emergencies.
“Not hermetically sealed” markets (from FERC v. Electric Power Supply Association (EPSA))
Wholesale actions predictably affect retail prices. The fact that retail customers feel the effects does not by itself change which regulator (federal or state) has authority over the conduct being regulated.

5. Conclusion

Mehl v. BP Energy Company (within In re: Winter Storm Uri Natural Gas Litigation) establishes a firm Tenth Circuit application of NGA field preemption to consumer class actions that, in substance, seek to police interstate wholesale natural-gas pricing and supply decisions through state consumer-protection law. The court operationalizes Oneok, Inc. v. Learjet, Inc. by making the “target” of the lawsuit dispositive and by rejecting arguments that extraordinary downstream retail harm—or the general breadth of a state statute—can relocate authority into a field Congress assigned to FERC.