Davilla v. Enable Midstream Partners , 913 F.3d 959 ( 2019 )


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  •                                                            FILED
    United States Court of Appeals
    Tenth Circuit
    PUBLISH          January 10, 2019
    Elisabeth A. Shumaker
    UNITED STATES COURT OF APPEALS           Clerk of Court
    TENTH CIRCUIT
    MARCIA W. DAVILLA; BENJAMIN
    BLACKSTAR; THOMAS
    BLACKSTAR, III; VANNETTE M.
    BRANHAM; EDMOND L. CARTER;
    PATRICIA CARTER FILES;
    HAROLD F. DUPOINT; CARRIE G.
    DUPOINT; RUDOLPH W. FISHER,
    JR.; CAMERON KEAHBONE;
    SINDY M. KEAHBONE; GILBERT
    C. KEAHBONE; MARK B.
    KEAHBONE; MARI L. KEAHBONE;
    PERRY K. KEAHBONE; BLAKE E.
    KEAHBONE; PATRICK
    KEAHBONE, JR.; EDBERT E.
    KEAHBONE, JR.; RENA A.
    KILLSFIRST; KATINA S. LIPTON;
    JANICE C. MAMMEDATY;
    AMANDA M. MCCARTHY;
    MICHAEL R. MCCARTHY;
    MAYREDENA M. PALMER;
    RACHEL M. PALMER; MEGAN L.
    PALMER; LAUREN SILVERBIRD;
    ANGELA R. SILVERHORN;
    HARVEY E. TUCKER; WILLIAM K.
    WARE; SAMUEL M. WARE;
    MATTHEW M. WARE; BETTY L.
    WARE; COREY WARE; PATRICIA
    WARE; JEAN WARE; WESLEY
    WARE, III; MELVA J. WERMY,
    Plaintiffs - Appellees,
    v.                                           No. 17-6088
    ENABLE MIDSTREAM PARTNERS
    L.P.; ENABLE G.P., LLC; ENABLE
    OKLAHOMA INTRASTATE
    TRANSMISSION LLC, formerly
    known as Enogex, LLC,
    Defendants - Appellants.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE WESTERN DISTRICT OF OKLAHOMA
    (D.C. NO. 5:15-CV-01262-M)
    Andrew W. Lester (Barry L. Pickens, Spencer Fane LLP, Overland Park, Kansas,
    with him on the briefs), Spencer Fane LLP, Oklahoma City, Oklahoma, for
    Appellants.
    Dustin T. Greene (David C. Smith, Kilpatrick Townsend & Stockton LLP,
    Washington, D.C., and Thurston H. Webb, Kilpatrick Townsend & Stockton LLP,
    Atlanta, Georgia, with him on the brief), Kilpatrick Townsend & Stockton LLP,
    Winston-Salem, North Carolina, for Appellees.
    Before TYMKOVICH, Chief Judge, LUCERO and HARTZ, Circuit Judges.
    TYMKOVICH, Chief Judge.
    Enable Intrastate Transmission, LLC owns and operates a natural gas
    pipeline that crosses Indian allotted land in Anadarko, Oklahoma. A twenty-year
    easement for the pipeline expired in 2000. Enable failed to renew the easement
    but also failed to remove the pipeline. In response, roughly three-dozen
    -2-
    individual Native American Allottees—who hold equitable title in the allotted
    land—filed this lawsuit.
    The district court granted summary judgment to the Allottees, ruling on the
    basis of stipulated facts that Enable was liable for trespass. The court then
    enjoined the trespass, ordering Enable to remove the pipeline. Enable appeals
    both rulings, claiming several legal errors. 1
    We affirm in part, reverse in part, and remand for further proceedings. The
    district court properly granted summary judgment to the Allottees but erred in
    issuing the permanent injunction. The availability of equitable relief in this case
    depends on the relative weight of interests not yet considered below. We leave
    those considerations for the district court to determine in the first instance.
    I. Background
    “After the formation of the United States, the [Indian] tribes became
    ‘domestic dependent nations,’ subject to plenary control by Congress.” Puerto
    Rico v. Sanchez Valle, 
    136 S. Ct. 1863
    , 1872 (2016) (quoting United States v.
    Lara, 
    541 U.S. 193
    , 204 (2004)); see also Cty. of Oneida v. Oneida Indian
    Nation, 
    470 U.S. 226
    , 234 (1985) (“With the adoption of the Constitution, Indian
    1
    The Allottees have also filed a motion for partial dismissal of this appeal,
    asserting that we lack jurisdiction over one of the interlocutory orders issued
    below. The merits briefing makes clear, however, that Enable does not appeal the
    order in question. We therefore DENY the motion as moot.
    -3-
    relations became the exclusive province of federal law.”). This “plenary
    authority” includes “full power to legislate concerning . . . tribal property.”
    Winton v. Amos, 
    255 U.S. 373
    , 391 (1921); see also Ramah Navajo Sch. Bd., Inc.
    v. Bureau of Revenue, 
    458 U.S. 832
    , 837 (1982) (linking Congress’s “broad
    [regulatory] power . . . [over] tribal affairs” to “the Indian Commerce Clause” and
    “the semi-autonomous status of Indian tribes” (first citing U.S. Const. art. I, § 8,
    cl. 3; then citing White Mountain Apache Tribe v. Bracker, 
    448 U.S. 136
    , 142
    (1980))). See generally White Mountain, 
    448 U.S. at
    141–45 (explaining the
    relationship between federal, state, and tribal regulatory authority).
    Congress exercised that power during the “Allotment Era” of the late-
    nineteenth and early-twentieth centuries by “carv[ing] [Indian] reservations into
    allotments and assign[ing] the land parcels to tribal members.” Pub. Serv. Co. v.
    Barboan, 
    857 F.3d 1101
    , 1104 (10th Cir. 2017). See generally 
    id.
     at 1104–06
    (detailing the history of the Allotment Era). This project aimed to promote Indian
    assimilation by encouraging private property ownership and agricultural pursuits.
    E.g., Upper Skagit Indian Tribe v. Lundgren, 
    138 S. Ct. 1649
    , 1652 (2018).
    But all did not go according to plan. “[M]any of the early allottees quickly
    lost their land through transactions that were unwise or even procured by fraud.”
    Cty. of Yakima v. Confederated Tribes & Bands of the Yakima Indian Nation, 
    502 U.S. 251
    , 254 (1992). In response, Congress “restricted immediate alienation or
    -4-
    encumbrance” in favor of a trust-based model. 
    Id.
     Through the Dawes Act, ch.
    119, 
    24 Stat. 388
     (1887), repealed by Indian Land Consolidation Act
    Amendments of 2000, Pub. L. No. 106-462, §§ 101–103, 
    114 Stat. 1991
    ,
    1991–2006 (codified at 
    25 U.S.C. §§ 2201
    –2219), Congress empowered the
    President to allot reservation land in trust rather than granting immediate, fee
    simple ownership, County of Yakima, 
    502 U.S. at 254
    . Under these trust
    arrangements, the United States retained legal title of allotted parcels while
    Indian allottees received equitable title. See 
    id.
     An allottee could secure a fee
    simple land patent only upon dissolution of the trust, which the government would
    allow after a term of years or by special determination. 
    Id.
     at 254–55.
    It was through this program that, in August of 1901, President William
    McKinley allotted 160 acres of land in Anadarko, Oklahoma, to a Kiowa woman
    named Emaugobah. But Congress’s allotment project “came to an abrupt end . . .
    with passage of the Indian Reorganization Act” in 1934. 
    Id. at 255
    . Under that
    legislation, “Congress halted further allotments and extended indefinitely the
    existing periods of trust applicable to already allotted (but not yet fee-patented)
    Indian lands.” 
    Id.
     As a result, Emaugobah never received a fee simple patent.
    And well over a century later, the federal government still holds roughly 136
    acres of Emaugobah’s tract in trust for the benefit of her tribe and thirty-some
    individual Allottees.
    -5-
    Meanwhile, Congress’s vacillation on Indian land policy left “a
    checkerboard of tribal, individual Indian, and individual non-Indian land
    interests” across Indian country. Barboan, 857 F.3d at 1105. This, in turn,
    created its own set of problems. As Congress hemmed and hawed over Indian
    affairs, the American people headed west and industrialized. The Great
    Plains—once passable only by foot, hoof, and wagon—slowly but surely sprouted
    a network of train tracks, telegraph wires, and other conduits of modern
    commerce. “[T]o help ensure that [such modern] necessities . . . could” span the
    continent “without encumbrance,” Congress soon enacted a series of
    “right-of-way statutes.” Id.
    As relevant here, these laws empowered the Secretary of the Interior to
    approve easements “for all purposes . . . over and across any lands . . . held in
    trust by the United States for individual Indians or Indian tribes.” 
    25 U.S.C. § 323
    . But the Secretary could not do so unilaterally. Instead, the Secretary
    needed “the consent of the proper tribal officials” or, where applicable,
    “individual Indian owners.” 
    Id.
     § 324. In the case of allotments shared among
    multiple Indians, the law required consent of a “majority of the [equitable]
    interests” to approve a right-of-way. Id.
    In 1980, acting under these provisions, the Secretary allowed conveyance of
    a twenty-five-foot-wide pipeline easement over a strip of Emaugobah’s allotment.
    -6-
    By its terms, the easement would allow Producer’s Gas Company to “install . . .
    and thereafter use, operate, inspect, repair, maintain, . . . and remove a single
    buried [twenty-inch] natural gas pipeline” within a twenty-year period. App. 40.
    Producer’s Gas later conveyed both the easement and the pipeline to Enable.
    When the easement expired in November 2000, however, Enable’s pipeline
    remained buried in the ground. Enable eventually sought a new twenty-year
    easement by approaching the Allottees and applying for approval from the Bureau
    of Indian Affairs. But the company failed to secure approval for the new
    easement from a majority of the equitable interests. Accordingly, the Bureau
    cancelled Enable’s right-of-way application. Apparently undeterred, Enable
    continued to operate the pipeline.
    The Allottees eventually sued. Their complaint claimed Enable was
    committing a trespass and sought a court order compelling the pipeline’s removal.
    The parties agreed on most of the relevant facts, so the Allottees moved for
    partial summary judgment on liability for trespass and injunctive relief. The
    district court granted the motion. Enable now appeals.
    II. Analysis
    Enable raises two issues on appeal. First, it argues the district court erred
    in granting summary judgment to the Allottees on their trespass claims. Second,
    it contends the district court erred in issuing a permanent injunction to enforce the
    -7-
    summary judgment ruling. We affirm the district court’s entry of summary
    judgment. We reverse its entry of a permanent injunction, however, and remand
    for the appropriate weighing of equities.
    A. Summary Judgment
    We review district court grants of summary judgment de novo. White v.
    York Int’l Corp., 
    45 F.3d 357
    , 360 (10th Cir. 1995). In so doing, we ask the same
    question the district court asked: has discovery yielded a genuine dispute of
    “material fact” or is the movant “entitled to judgment” on a claim or issue without
    any need to weigh evidence? Fed. R. Civ. P. 56(a); see Anderson v. Liberty
    Lobby, Inc., 
    477 U.S. 242
    , 249 (1986). A genuine dispute arises where the
    available evidence would allow a rational jury to accept either party’s allegation
    of a particular fact. See Tabor v. Hilti, Inc., 
    703 F.3d 1206
    , 1215 (10th Cir.
    2013). But only facts that “could have an effect on the outcome” of a claim
    qualify as “material.” 
    Id.
     (quoting EEOC v. Horizon/CMS Healthcare Corp., 
    220 F.3d 1184
    , 1190 (10th Cir. 2000)). We construe all evidence and draw all
    inferences in favor of the party opposing a summary judgment motion. See, e.g.,
    EagleMed LLC v. Cox, 
    868 F.3d 893
    , 899 (10th Cir. 2017).
    But it is the law, not the material facts, that complicates this case. When a
    dispute arises over possessory rights in Indian allotted land, federal law governs.
    See Nahno-Lopez v. Houser, 
    625 F.3d 1279
    , 1282 (10th Cir. 2010); cf. Clearfield
    -8-
    Tr. Co. v. United States, 
    318 U.S. 363
    , 366 (1943) (“The rights and duties of the
    United States on commercial paper which it issues are governed by federal rather
    than local law.”). And although no act of Congress expressly creates a right of
    action for trespass on Indian allotted land, the parties agree such a right exists.
    See, Aplt. Br. at 16; Aple. Br. at 15. 2 They do, however, dispute the rules of
    decision. Thus we must determine those rules as a matter of so-called “federal
    common law.” 3
    Because we lack a federal body of trespass law to protect the Allottees’
    federal property interests, we must borrow state law to the extent it comports with
    federal policy. See Kamen v. Kemper Fin. Servs., Inc., 
    500 U.S. 90
    , 98 (1991);
    2
    Nahno-Lopez also concerned an alleged trespass on Indian allotted land. See
    
    625 F.3d at 1282
    . In that case, however, we affirmed summary judgment to the
    defendants due to a lack of evidence to prove an essential element. See 
    id. at 1283
    . It is therefore unclear whether we have ever formally recognized a federal
    claim for trespass on an Indian allotment, or simply assumed such a claim’s
    existence. Cf., e.g., Gohier v. Enright, 
    186 F.3d 1216
    , 1220–22 (10th Cir. 1999)
    (disposing of a claim under federal law without deciding whether to recognize
    that claim).
    3
    Of course, “[t]here is no federal general common law.” Erie R.R. Co. v.
    Tompkins, 
    304 U.S. 64
    , 78 (1938) (emphasis added). Nevertheless, the federal
    courts have—confusingly—adopted the label “federal common law” to describe a
    certain variety of statutory interpretation. See generally Martha A. Field, Sources
    of Law: The Scope of Federal Common Law, 
    99 Harv. L. Rev. 881
    , 890–97 (1986)
    (explaining the meaning of the term). Within this realm, federal courts drift far
    from codified text and interpret congressional silence to include rules of law
    protecting “uniquely federal interests.” Boyle v. United Techs. Corp., 
    487 U.S. 500
    , 504 (1988) (quoting Tex. Indus., Inc. v. Radcliff Materials, Inc., 
    451 U.S. 630
    , 640 (1981)).
    -9-
    California ex rel. State Lands Comm’n v. United States, 
    457 U.S. 273
    , 283
    (1982); United States v. Kimbell Foods, Inc., 
    440 U.S. 715
    , 728 (1979). The State
    of Oklahoma recognizes a right of action in trespass where one person “actual[ly]
    physical[ly] inva[des] . . . the real estate of another without the permission of the
    person lawfully entitled to possession.” Williamson v. Fowler Toyota, Inc., 
    956 P.2d 858
    , 862 (Okla. 1998). In other words, a trespass occurs when “one . . .
    enters upon the property of another without any right, lawful authority, or express
    or implied invitation, permission, or license.” 
    Id.
     The entry must not be “in the
    performance of any duty to the owner or person in charge or on any business of
    such person.” 
    Id.
     Instead, a trespasser comes or remains on land “merely for his
    own purposes, pleasure, . . . convenience, or out of curiosity.” 
    Id.
    Our reading of Oklahoma law thus yields three elements constituting the
    Allottees’ federal trespass claims. First, the Allottees must prove an entitlement
    to possession of the allotment. Second, they must prove Enable physically entered
    or remained on the allotment. Finally, they must prove Enable lacked a legal
    right—express or implied—to enter or remain. The stipulated facts already
    described definitively prove the first two elements. Enable takes issue, however,
    with the entry of summary judgment on the third.
    -10-
    1. Consent as a Defense to Trespass
    Enable contends it has produced evidence of consent sufficient to prove a
    legal right to maintain the pipeline despite the easement’s expiration. See Aplt.
    Br. 20–23. Moreover, Enable argues the Allottees’ failure to address this
    evidence in their opening summary judgment brief below should have rendered
    the motion insufficient at the outset. See 
    id.
     at 23–25.
    We first address the role of consent in this area of law. In Nahno-Lopez we
    considered a similar trespass action regarding Indian allotted land. See 
    625 F.3d 1279
    . Several individual Comanche had agreed to lease their allotted land to the
    Fort Sill Apache Tribe for development of a casino parking facility. A
    controversy then arose among the allottees, the Tribe, and the Bureau of Indian
    Affairs regarding the lease’s validity. The allottees sued the Tribe, claiming
    trespass. The district court granted summary judgment to the Tribe.
    We affirmed. We reasoned that the Comanche allottees had not offered
    record evidence sufficient to survive summary judgment. We specifically noted
    the Comanche allottees’ failure to controvert the Tribe’s evidence of “consent” to
    the alleged trespass—namely, the lease document and acceptance of rent
    payments. See 
    id. at 1280, 1284
    . Because, in our words, “consent forms a
    complete defense to trespass” under the incorporated Oklahoma law, we upheld
    the summary judgment order. 
    Id. at 1284
    .
    -11-
    Enable relies on this language in arguing it has a sufficient fact question
    regarding consent. In 2004, Enable obtained written consent forms from five of
    the thirty-seven individual Allottees in this case. The forms show these five
    Allottees’ willingness to grant a new right-of-way for the pipeline in exchange for
    cash payments. 4 Despite the fact that these Allottees hold less than ten percent of
    the interests in equitable title, Enable contends their consent creates a triable
    factual dispute precluding summary judgment under Nahno-Lopez. See Aplt. Br.
    at 21–23. If consent is “a complete defense to trespass,” Enable argues, then
    these forms would allow a reasonable jury to rule against trespass liability.
    This argument confuses the law. Admittedly, our concise presentation of
    “consent” as a “complete defense to trespass” in Nahno-Lopez somewhat
    oversimplified the rule. To be sure, the rightful possessor of real property cannot
    hold his licensees liable for trespass under Oklahoma law. But this is
    because—as we have just explained—the defendant’s lack of a right to enter is an
    element of the claim. Accordingly, evidence of a plaintiff’s consent to a
    defendant’s entry on the land will defeat liability in those cases where the
    plaintiff’s consent itself creates a right to enter or remain. In such cases, the
    claim will fail for lack of proof on an essential element.
    4
    The Allottees’ have contested the continued validity of these fourteen-year-old
    forms. See Aple. Br. at 32–33. We assume their validity for the sake of
    argument.
    -12-
    When it comes to maintaining a pipeline over Indian allotted land, however,
    Congress has dictated the prerequisites of a right to enter by statute. Enable thus
    has no legal right to keep a structure on the Allottees’ land unless and until it
    secures a right-of-way for that purpose from the Secretary of the Interior. See 
    25 U.S.C. § 323
    . The Secretary must, in turn, have the approval of the relevant
    Indian stakeholders. See 
    id.
     § 324.
    The statute notwithstanding, Enable argues “[a] single owner of a tenancy
    in common may enter into a lease for the entire co-tenancy property without any
    other’s consent.” Aplt. Br. at 22 (emphasis added). Enable gives us no reason to
    equate the Allottees’ interest in the land with a traditional tenancy in common.
    But even if it were, the authorities Enable identifies do not support this bold
    assertion. See United States v. Craft, 
    535 U.S. 274
    , 280 (2002) (explaining, in
    dicta, that under traditional English common law, cotenants “may each
    unilaterally alienate [or encumber] their shares” but also have “the right to . . .
    exclude third parties from” the property (emphasis added)); Anderson v. Dyco
    Petroleum Corp., 
    782 P.2d 1367
    , 1371–72 & n.8 (Okla. 1989) (holding that
    cotenants in the “working interest in [a] natural gas well” may each “market
    production from the well and . . . [sell] gas to a purchaser . . . without consent of
    other cotenants,” id. at 1371). More to the point, those authorities fall well short
    of holding that one cotenant has no right of action for trespass under Oklahoma
    -13-
    law when another cotenant—much less a small minority of cotenancy interests—
    has agreed to a right-of-way easement. And though we have found no Oklahoma
    authority directly on point, other jurisdictions have adopted a directly opposite
    view. See, e.g., Burnham v. Balt. Gas & Elec. Co., 
    144 A.2d 80
    , 87 (Md. 1958)
    (“The authorities appear to be uniform in holding that a cotenant cannot by
    himself grant an easement that will bind his cotenants.”).
    Moreover, even if Oklahoma would say that this evidence could defeat any
    trespass claim, we would not incorporate such a rule into the Allottees’ federal
    right of action. As we explained above, federal courts should only incorporate
    state rules of decision into federal claims to the extent those rules are consistent
    with federal law and policy. See, e.g., Kamen, 
    500 U.S. at 98
    . Needless to say,
    securing the approval of a majority of beneficial interests plus the government
    presents a greater challenge than getting the consent of just a few minority
    stakeholders. Thus, if the consent of a minority of interests in equitable title
    could defeat any federal claim for trespass on an Indian allotment, there would be
    no point to fulfilling the more stringent requirements of securing a right-of-way
    under federal statute. Adopting Enable’s view would therefore frustrate federal
    Indian land policy, effectively robbing Indian allottees and the government of
    meaningful control over alienation. We thus reject Enable’s theory of consent.
    -14-
    In light of this conclusion, Enable’s proffered evidence plainly does not
    warrant reversal of the district court’s summary judgment ruling. The undisputed
    facts—expiration of the easement, specifically—show that Enable lacks a legal
    right to keep the pipeline in the ground. The consent forms would not allow a
    reasonable jury to find otherwise.
    The Allottees’ briefing below did not bar the district court from reaching
    this conclusion either. To be sure, the Allottees had to show liability was
    “appropriate as a matter of law” to support summary judgment. Trainor v. Apollo
    Metal Specialties, Inc., 
    318 F.3d 976
    , 979 (10th Cir. 2002). And they did not
    mention the consent evidence in their initial motion. But the consent evidence
    would not have contributed to the initial showing of liability. Thus, because the
    Allottees raised the stipulated facts that the easement had expired and not been
    renewed, the onus fell to Enable to put its right to entry at issue. See Anderson v.
    Dep’t of Heath & Human Servs., 
    907 F.2d 936
    , 947 (10th Cir. 1990).
    Nor did the district court exceed its discretion by allowing the Allottees to
    file a reply brief addressing consent after Enable raised the issue. See Beaird v.
    Seagate Tech., Inc., 
    145 F.3d 1159
    , 1164 (10th Cir. 1998) (applying the abuse of
    discretion standard). Enable had a full opportunity to brief the issue—indeed, it
    raised the issue itself. More importantly, Enable gives no indication that it
    sought and was denied an opportunity to file a surreply. Thus, the court below
    -15-
    had every right to reach and resolve this issue. See Jencks v. Modern Woodmen of
    Am., 
    479 F.3d 1261
    , 1268–69 (10th Cir. 2007).
    2. Demand for Removal
    Enable also argues that no duty to remove the pipeline ever arose—
    expiration of the easement notwithstanding—because the Allottees never
    demanded that Enable remove the pipeline.
    We note first that Enable failed to raise this argument below. A litigant
    must preserve an issue for appellate review by pressing it in the trial court. See,
    e.g., Carney v. Okla. Dep’t of Pub. Safety, 
    875 F.3d 1347
    , 1351 (10th Cir. 2017).
    And because Enable has not raised it under the plain error standard here, we have
    no obligation to address it. See Richison v. Ernest Grp., Inc., 
    634 F.3d 1123
    ,
    1130–31 (10th Cir. 2011).
    Recognizing this problem, Enable has attempted to shift blame to the
    Allottees. According to Enable, the Allottees could only secure summary
    judgment if they briefed all elements of their trespass claim—including demand
    for removal. See Aplt. Br. at 18–20; Reply Br. at 2–4. But our adversarial system
    does not work that way. To be sure, a party seeking summary judgment must
    show the law and available evidence compel the requested outcome. See Fed. R.
    Civ. P. 56; Adickes v. S. H. Kress & Co., 
    398 U.S. 144
    , 157 (1970); Neal v. Lewis,
    
    414 F.3d 1244
    , 1248 (10th Cir. 2005); Reed v. Bennett, 
    312 F.3d 1190
    , 1194 (10th
    -16-
    Cir. 2002). And to do so, he must necessarily identify governing legal principles.
    But even an erroneous or incomplete view of the law can support summary
    judgment against a party that fails to contest it. Indeed, our courts act only as
    “neutral arbiter[s] of matters the parties present.” Greenlaw v. United States, 
    554 U.S. 237
    , 243, 128 (2008). Thus, the movant’s burden of production at the
    summary judgment stage does not abrogate the nonmovant’s obligation to contest
    matters of law. If it did, district court review of summary judgment motions
    would become a waste of time in many instances. See Wright v. Experian Info.
    Sols., Inc., 
    805 F.3d 1232
    , 1244 n.6 (10th Cir. 2015).
    But Enable’s forfeiture does not prevent us from definitively rejecting its
    demand argument on the merits. See, e.g., United States v. Jarvis, 
    499 F.3d 1196
    ,
    1201 (10th Cir. 2007); see also Champagne Metals v. Ken-Mac Metals, Inc., 
    458 F.3d 1073
    , 1088 (10th Cir. 2006) (declaring our court’s discretion to affirm on
    any sufficient ground the parties have had an opportunity to address). And in the
    interest of clarifying the law, we think it appropriate to do so. Cf. Jarvis, 
    499 F.3d at 1202
    .
    Again, we incorporate Oklahoma law into this federal claim so long as it
    does not frustrate federal policy. See, e.g., Kamen, 
    500 U.S. at 98
    . And we begin
    by noting the absence of any Oklahoma case establishing a demand requirement.
    See Fairlawn Cemetery Ass’n v. First Presbyterian Church, U.S.A., 496 P.2d
    -17-
    1185, 1187 (Okla. 1972) (specifically considering a trespass by means of a
    permanent physical invasion of dirt fill); Russell v. Williams, 
    964 P.2d 231
     (Okla.
    Civ. App. 1998) (considering trespass by a portion of a modular home); see also
    Frank v. Mayberry, 
    985 P.2d 773
    , 775–76 (Okla. 1999) (often cited as explaining
    Oklahoma’s law of trespass); Williamson, 956 P.2d at 862 (same).
    Moreover, even assuming—as Enable urges—that Oklahoma follows the
    Restatement (Second) of Torts, see Aplt. Br. at 17 & n.6; but cf. Frank, 985 P.2d
    at 776 (noting that the Oklahoma Supreme Court has “quoted [the Second
    Restatement] with approval,” rather than adopting it), the argument still fails.
    The Restatement provides that “the continued presence on the land of a structure
    . . . which the actor . . . has placed” there “with the consent of” the lawful
    possessor constitutes a trespass “if the actor fails to remove it after the consent
    has been effectively terminated.” Restatement (Second) of Torts § 160 (Am. Law
    Inst. 1977) (emphasis added). The comments clarify that “[i]f a structure . . . is
    placed on the land with the possessor’s consent conditioned upon the actor’s
    subsequently removing it, the termination of consent creates a duty to remove it.”
    Id. cmt. d. And, unsurprisingly, “the lapse of any specified period of time by
    which the consent is restricted” terminates consent. Id. § 171(a).
    According to these rules, the easement’s expiration created a duty to
    remove the pipeline. Permission to lay and maintain the pipeline came
    -18-
    hand-in-hand with an obligation to remove it. See App. 40 (granting the easement
    to “install . . . and remove” the pipeline within a term of twenty years); cf. 
    25 C.F.R. § 161.5
    (I) (1980) (requiring right-of-way applicants to expressly agree to
    restore the land to its original condition). Indeed, there would have been no sense
    in limiting the easement term to twenty years otherwise. The Restatement would
    therefore not impose a separate obligation to demand removal on these facts. 5
    To be sure, had the Allottees refused to allow Enable to remove the
    pipeline, the Restatement might have forbidden liability for trespass. See
    Restatement (Second) of Torts §§ 160 cmt. m, 161 cmt. d. But Enable gives us no
    reason to believe the Allottees have ever prevented removal of the pipeline.
    Instead, Enable espouses the view that it would have incurred trespass liability for
    attempting to remove the pipeline unless and until the Allottees made a removal
    demand. This argument mischaracterizes the right-of-way grant and misstates
    Oklahoma law. Both allowed Enable to enter the land to remove the pipeline at
    least within the easement term, if not beyond it. See App. 40; Williamson, 956
    P.2d at 862.
    Ignoring these issues, Enable focuses on rules pertaining to structures
    “tortiously placed” on land and subsequently transferred to new owners. See
    5
    For that matter, the complaint filed in district court acted as a demand for
    removal.
    -19-
    Aplt. Br. at 18 (discussing Restatement (Second) of Torts § 161). Of course,
    Producer’s Gas—Enable’s predecessor—did not tortiously place the pipeline on
    the land; it constructed the pipeline with permission. And the fact that Enable
    kept the pipeline on the land without permission does not render the initial
    placement tortious. Moreover, the only transfer of the pipeline occurred during
    the easement term, at which point the parties agree the pipeline’s presence was
    still lawful. Finally, even assuming this case had involved a transfer after
    expiration of the easement, the Restatement makes clear that notice of a duty to
    remove—for instance, through the terms of an easement contract—binds the
    transferee. See Restatement (Second) of Torts § 161(2).
    Finally, Enable errs by relying on the Ninth Circuit’s decision in United
    States v. Milner, 
    583 F.3d 1174
     (9th Cir. 2009), to bolster its position. In Milner,
    the Ninth Circuit considered an alleged federal trespass by anti-erosion structures
    originally placed on privately owned tidal uplands in Washington State. The
    boundary between the uplands and adjacent Indian tidelands had shifted with the
    gradual change of the mean high water mark over the course of several years.
    Eventually, the boundary line shifted so far that the stationary anti-erosion
    structures began encroaching on the tribal tideland. In defense against a trespass
    claim, the upland owners argued they lacked the intent necessary to commit a
    trespass. The Ninth Circuit rejected this argument, reasoning that intent followed
    -20-
    refusal to remove the structures despite notice of a duty to remove. That notice,
    said the court, followed the United States’ demand for removal as legal title
    holder. See 
    id.
     at 1190–91.
    Even if we assumed the legal principles the Ninth Circuit applied in Milner
    had bearing on this case, 6 they would not support Enable’s argument for a demand
    element. As we have explained, Enable acquired the pipeline already knowing
    the right-of-way would eventually expire. It therefore cannot—and indeed does
    not—claim it lacked notice of its duty to remove or intent to maintain the
    trespass.
    We thus reject Enable’s contention that the Allottees had to demand
    removal of the pipeline for trespass liability to arise.
    ***
    6
    The Milner court applied the Restatement (Second) of Torts under the
    somewhat ambiguous reasoning that both federal precedent and borrowed
    precedent from the State of Washington supported that application. See United
    States v. Milner, 
    583 F.3d 1174
    , 1182–83 & n.6 (9th Cir. 2009). The Restatement
    classifies trespass traditionally as an intentional tort, see Restatement (Second) of
    Torts § 158, with “intent” meaning a “desire[] to cause consequences of” the act
    in question “or . . . belie[f] that the consequences are substantially certain to
    result,” id. § 8A. It is worth noting, however, that the Oklahoma courts have yet
    to develop a jurisprudence of intent with regard to real property trespass.
    Nevertheless, because Enable has never made an issue of it, the place of intent in
    Oklahoma tort law and, consequently, federal trespass law, does not bear on our
    analysis.
    -21-
    In sum, Enable’s arguments against summary judgment fail under the
    incorporated trespass law of Oklahoma. And Enable has not argued for any
    conflict between that law, as we understand it, and federal policy regarding Indian
    allotted land. We therefore affirm the district court’s grant of summary judgment.
    B. Permanent Injunction
    The Allottees’ success on the merits notwithstanding, Enable argues the
    district court applied the wrong legal standard in determining whether to issue a
    permanent injunction. According to Enable, the district court incorporated a
    simplified injunction rule from Oklahoma law when it should have adhered to
    basic tenants of federal equity jurisprudence. Aplt. Br. at 25–28. 7
    We agree. By failing to apply the federal courts’ traditional equity
    jurisprudence to its remedy analysis, the court below committed an error of law
    and thus abused its equitable discretion. Accordingly, we must reverse the
    injunction order and remand for a full weighing of the equities.
    Federal district courts have the power to order injunctive relief when equity
    so requires. See Signature Props. Int’l Ltd. P’ship v. City of Edmond, 
    310 F.3d 1258
    , 1268 (10th Cir. 2002). We review a district court’s exercise of that power
    7
    The Allottees contend Enable forfeited this argument by failing to raise it
    below. See Aple. Br. at 34–35. Our review of the briefing below, however,
    reveals that Enable did not acquiesce to the Allottees’ proposed automatic-
    injunction rule and instead argued for the typical four-factor analysis.
    -22-
    for abuse of discretion only. See, e.g., 
    id.
     As always, however, a district court
    abuses its discretion when it “bases its decision on an erroneous conclusion of
    law.” Wyoming v. U.S. Dep’t of Agric., 
    661 F.3d 1209
    , 1227 (10th Cir. 2011)
    (quoting Wilderness Workshop v. U.S. Bureau of Land Mgmt., 
    531 F.3d 1220
    ,
    1224 (10th Cir. 2008)).
    In this case, the district court relied primarily on Oklahoma law—with
    supplemental authority from other federal courts—to conclude that “equity will
    restrain [a continuing] trespass.” App. 268 (quoting Fairlawn Cemetery, 496 P.2d
    at 1187). 8 As a result, it did not apply the usual four-factor test guiding federal
    courts’ grant of permanent injunctive relief. See, e.g., eBay Inc. v.
    MercExchange, L. L. C., 
    547 U.S. 388
    , 391 (2006); Kitchen v. Herbert, 
    755 F.3d 1193
    , 1208 (10th Cir. 2014). Though it observed “some courts have declined to
    enter an injunction when the trespass was unintentional and when the landowner”
    delays objection, it did not think such issues at play in this case. App. 269. Thus,
    8
    Where a refusal to remove a permanent structure effects the invasion of real
    property, it constitutes a “continuing trespass” under Oklahoma law. Fairlawn
    Cemetery, 496 P.2d at 1187. “Continuing trespass” is not a distinct legal wrong.
    Rather, the ongoing, unabating nature of certain trespasses continuously gives rise
    to causes of action that the victim can sue on, and eventually can support
    equitable relief. See Hughes v. Harden, 
    151 P.2d 425
    , 427 (Okla. 1944); see also
    Bradley v. Renfrow, 
    84 P.2d 430
    , 431 (Okla. 1938) (describing an allegation of
    continuing trespass as supporting pursuit of equitable relief).
    -23-
    with no further weighing of the equities, the court ordered Enable to remove the
    pipeline.
    Generally, federal courts adopt state law even when the dispute is
    “governed exclusively by federal [common] law.” See United States v. Turley,
    
    878 F.3d 953
    , 957 (10th Cir. 2017). “Indeed, there is a ‘presumption that state
    law should be incorporated into federal common law.’” 
    Id.
     (citing Kamen v.
    Kemper Fin. Servs., Inc., 
    500 U.S. 90
    , 98 (1991)). This is partly because courts
    are hesitant, and for good reason, to create federal common law rules that are
    “wholly the product of a federal court’s own devising.” See Kamen, 
    500 U.S. at 98
    ; United States v. Yazell, 
    382 U.S. 341
    , 353 (1966) (declining to “invent” a
    federal common law rule and “impose it upon the States”). Such policy, even
    when applied to cases arising under federal common law rather than diversity
    jurisdiction, supports “the twin aims of the Erie rule: discouragement of forum-
    shopping and avoidance of inequitable administration of the laws.” Hanna v.
    Plumer, 
    380 U.S. 460
    , 468 (1965).
    But federal courts do not mechanically apply state law in every
    circumstance. “Whether to adopt state law or to fashion a nationwide federal rule
    is a matter of judicial policy ‘dependent upon a variety of considerations.’”
    United States v. Kimbell Foods, Inc., 
    440 U.S. 715
    , 728 (1979) (citation omitted).
    And to guide this judicial policymaking, the Supreme Court has indicated that
    -24-
    federal courts should consider (1) “whether application of state law would
    frustrate specific” federal interests, (2) whether there is a “need for a nationally
    uniform body of law,” and (3) other considerations such as whether “application
    of a federal rule would disrupt commercial relationships predicated on state law.”
    
    Id.
     at 728–29; see also Kamen, 
    500 U.S. at 98
    . The considerations in this case
    lead us to conclude that the district court erred in applying Oklahoma rather than
    federal remedial law.
    The district court erred because the circumstances presented here reveal “a
    distinct need for nationwide legal standards.” Kamen, 
    500 U.S. at 98
    . As already
    explained, Congress provided a way for the Secretary of the Interior to approve
    easements “over and across any lands . . . held in trust by the United States for
    individual Indians or Indian tribes.” 
    25 U.S.C. § 323
    . This right-of-way statute
    was “to help ensure that necessities such as telegraph lines and roads could
    continue without encumbrance.” Pub. Serv. Co. of New Mexico v. Barboan, 
    857 F.3d 1101
    , 1105 (10th Cir. 2017). While this does not rise to the level of creating
    a federal interest that federal common law should manage, the nationwide
    application of this right-of-way statute suggests a need for a uniform federal
    standard.
    This uniform standard is necessary because the Secretary has undoubtedly
    approved easements over and across Indian land in multiple states. And since
    -25-
    many of these easements are likely for a limited duration, these easements—for
    pipelines, telecommunication lines, and roads—like the easement at issue here,
    may fail to receive consent to renew by a “majority of the [equitable] interests”
    and may therefore be subject to an order of removal. See 
    id.
     § 324. This prospect
    shows the distinct need for easement holders to be subject to the same standard
    for when an equitable remedy is required and when a legal remedy is
    sufficient—regardless of where the easement is located. Otherwise, an easement
    holder in Oklahoma and one in Kansas could be subject to differing permanent
    injunction standards despite both receiving an easement from the Secretary of the
    Interior pursuant to the same federal program.
    We therefore conclude that the district court erred in failing to apply the
    federal permanent-injunction standard even though it properly applied Oklahoma
    trespass law. This is because our jurisprudence distinguishes between matters of
    right and matters of remedy. The Supreme Court has concluded that “State law
    cannot define the remedies which a federal court must give” and that “a federal
    court may afford an equitable remedy for a substantive right recognized by a State
    even though a state court cannot give it.” Guaranty Trust Co. of N.Y. v. York, 
    326 U.S. 99
    , 105 (1945). Thus, the practice of borrowing state rules of decision does
    not apply with equal force to determining appropriate remedies, especially
    equitable remedies, as it does to defining actionable rights.
    -26-
    Moreover, applying the federal permanent-injunction standard differs
    significantly from applying the federal common law of trespass. As explained,
    federal courts lack a body of federal trespass law to protect the Allottees’ federal
    property interests. So applying federal trespass law would require our court to
    construct rules entirely of this court’s creation. We accordingly borrow a body of
    well-developed state law to the extent it does not conflict with federal policy.
    These same considerations are not present when seeking to apply federal equitable
    remedies, however. Applying federal remedial law does not require this court to
    create federal common law or even to “fill the interstices of federal remedial
    schemes” with the court’s own rules. See Kamen, 
    500 U.S. at 98
     (declining to
    fashion federal rules to fill gaps in federal statutory remedial scheme); Kimbell
    Foods, 
    440 U.S. at 728
     (same).
    This is because the federal judiciary already has a well-developed body of
    law regarding equitable remedies to guide judicial discretion. The Supreme Court
    has repeatedly weighed in on the standard federal courts apply when granting or
    denying a permanent injunction. See, e.g., eBay Inc. v. MercExchange, L.L.C.,
    547 U.S 388, 391 (2006); Amoco Prod. Co. v. Vill. of Gambell, AK, 
    480 U.S. 531
    ,
    541–42 (1987); Weinberger v. Romero-Barcelo, 
    456 U.S. 305
    , (1982). In each
    case the Supreme Court set out the proper standard for granting a permanent
    injunction and chastised the circuit court for granting equitable relief based solely
    -27-
    on success on the merits. See Weinberger, 
    456 U.S. at
    311–312 (“It goes without
    saying that an injunction is an equitable remedy [that] . . . ‘is not a remedy which
    issues as of course.’”) (citation omitted). We may therefore apply a well-
    developed federal common law standard for issuing a permanent injunction that
    will fulfill the “distinct need for nationwide legal standards” called for in this
    case. Kamen, 
    500 U.S. at 98
    .
    Thus, a federal district court’s decision to permanently enjoin a continuing
    trespass on allotted land should take into account (1) whether an injunction is
    necessary to prevent “irreparable harm,” (2) whether “the threatened injury
    outweighs the harm that the injunction may cause” to the enjoined party, and (3)
    whether the injunction would “adversely affect the public interest.” Kitchen v.
    Herbert, 
    755 F.3d 1193
    , 1208 (10th Cir. 2014) (quoting Sw. Stainless, LP v.
    Sappington, 
    582 F.3d 1176
    , 1191 (10th Cir. 2009)). 9 Accordingly, by ordering
    Enable to remove the pipeline on the basis of liability alone, the district court
    legally erred and thus abused its discretion.
    The Allottees’ attempts to escape this conclusion do not persuade us. First,
    they argue the district court did not, in fact, apply a simplified rule. Instead, they
    9
    We acknowledge that our circuit’s articulation of the rule differs slightly from
    that of the Supreme Court in eBay. Compare Kitchen, 755 F.3d at 1208, with
    eBay, 
    547 U.S. at 393
    . But the subtle differences are not at issue, and we think
    the two articulations capture the same considerations in any event.
    -28-
    claim the court merely applied the usual rule to simplified facts. See Aple. Br.
    35–38. But we see little support for this reading. The court below made no
    mention of the appropriate equitable considerations. Indeed, it went to great
    lengths to justify its analysis as legally, rather than just factually, appropriate.
    Second, the Allottees invite us to affirm the district court even if it applied
    incorrect law, claiming the record clearly warrants relief regardless. See Aple.
    Br. at 38–41. But though—as we have already noted—we may generally affirm a
    district court order on any sufficient grounds the parties have had an opportunity
    to brief, see Champagne Metals, 
    458 F.3d at 1088
    , we resist that invitation. The
    discretion to issue a permanent injunction in this case rests with the district court,
    not us. Cf., e.g., Bailey v. State Farm Fire & Cas. Co., 
    414 F.3d 1187
    , 1191
    (10th Cir. 2005). And just because we think the district court could have issued a
    permanent injunction under the proper test does not mean we can ignore an error
    of law and resolve the issue on appeal. “Injunctive relief is, by its very nature,
    fact-sensitive and case-specific.” New Comm Wireless Servs., Inc. v. SprintCom,
    Inc., 
    287 F.3d 1
    , 13 (1st Cir. 2002). Thus our court should generally refrain from
    “uphold[ing] a preliminary injunction on a ground that was not fully addressed”
    below. 
    Id.
    Moreover, if we did endeavor to balance the equities ourselves, we would
    not get very far. As the above makes clear, the sheer right to exclude simply
    -29-
    cannot begin and end the equitable analysis. Cf. eBay, 
    547 U.S. at
    392–93. And
    the Allottees do not explain how the pipeline’s presence works “irreparable harm”
    otherwise. Kitchen, 755 F.3d at 1208 (quoting Sappington, 
    582 F.3d at 1191
    ).
    More importantly, without further evidence—which the Allottees have never
    proffered—we have no way of knowing the relative costs and benefits of Enable
    removing the pipeline, either as they pertain to these parties or the public at large.
    To the extent the Allottees have addressed these concerns, their arguments have
    offered legal analysis in lieu of pertinent facts. See App. 120–23; Aple. Br. at
    38–41. In short, we will not assume the equities support injunctive relief in this
    case, or whether the district court would in fact award such relief under governing
    law.
    In sum, we must remand the decision to the district court to weigh the
    equities in the first instance. 10
    III. Conclusion
    For the reasons stated above, we AFFIRM the district court’s grant of
    summary judgment to the Allottees, REVERSE the entry of the permanent
    injunction, and REMAND for further proceedings.
    10
    As a result, we do not reach Enable’s challenge to the district court’s
    compliance with Rule 52 of the Federal Rules of Civil Procedure. See Aplt. Br. at
    28–30.
    -30-
    17-6088, Davilla v. Enable Midstream Partners
    HARTZ, Circuit Judge, concurrence and partial dissent:
    Except in one respect, I am pleased to join Chief Judge Tymkovich’s opinion.
    Where I differ from the panel opinion is that I would apply the state law of Oklahoma,
    rather than federal law, to determine the remedy for Enable’s trespass. Because the panel
    opinion covers the ground so well, my discussion can be relatively brief.
    The dispute in this case concerns about 1300 feet of natural-gas pipeline that is
    part of a 100-mile pipeline between Canute and Cox City, Oklahoma, which in turn is
    part of a broader 2200-mile pipeline system within Oklahoma. Plaintiffs’ claim is that
    this quarter-mile pipeline segment trespasses property held in trust for them by the United
    States. Because of the interest of the federal government, federal law governs. But there
    is no applicable federal trespass statute, so we decide this case as a matter of federal
    common law. As a general rule, federal common law regarding interests in real property
    adopts the law of the state where the property is located. See United States v. Turley, 
    878 F.3d 953
    , 956–57 (10th Cir. 2017). Transactions can be handled more expeditiously and
    with greater confidence when the government’s counterparty knows it can rely on the
    local law with which it (or its attorney) is familiar.
    The dispute before us, however, does require some consideration of federal
    statutory law. Easements for rights-of-way over what can be described, roughly
    speaking, as Indian lands must comply with 
    25 U.S.C. §§ 323
    –28, which set forth how
    consent to a right-of-way must be obtained, ordinarily through approval of the majority
    ownership interest of the known property owners (or tribal officials, if the land is tribal
    land), see 
    id.
     at § 324. The easement for the pipeline in this case explicitly cites to those
    statutory provisions. Much of the panel opinion, with which I fully agree, explains why
    we believe that such consent had lapsed for the pertinent portion of Enable’s easement.
    But consent is only one element of a trespass claim. For the other elements,
    Oklahoma law governs. That choice of law makes particularly good sense here. The
    record does not show how much of the 100-mile pipeline or the 2200-mile pipeline
    system crosses land held in trust by the United States and how much of it crosses land
    that is privately owned. But all of it is within Oklahoma, and surely it facilitates
    commerce to have a single legal regime govern what happens when a pipeline crosses
    land without the owner’s consent. Thus, this panel unanimously agrees that Oklahoma
    law governs the requirements of notice and demand to the trespasser.
    Where I depart from the majority is regarding the law governing whether a
    permanent injunction should issue. In my view, we should continue to apply Oklahoma
    law on that issue. As one leading treatise has stated, “Rights and remedies are closely
    interrelated concepts; to deviate from the state’s definition of the latter often also would
    change the former.” Wright & Miller § 4513 at 567. That statement appears in a
    discussion of the Erie doctrine, explaining why in diversity cases federal courts should
    ordinarily look to state law in determining what remedy is appropriate, even when
    considering equitable remedies. But the point applies here as well. Once the federal
    court has decided that federal common law should incorporate state law regarding a cause
    of action, the same considerations should ordinarily counsel in favor of incorporating
    state law regarding the remedies available for that cause of action.
    2
    The majority believes that there are good reasons not to follow that approach here.
    The panel opinion states that there is “‘a distinct need for nationwide legal standards’”
    with respect to the remedy in this case. Maj. Op. at 25 (quoting Kamen v. Kemper Fin.
    Servs., Inc., 
    500 U.S. 90
    , 98 (1991)). It points out that the federal statute at issue here
    permits rights-of-way on Indian land “to help ensure that necessities such as telegraph
    lines and roads could continue without encumbrance.” Pub. Serv. Co. of New Mexico v.
    Barboan, 
    857 F.3d 1101
    , 1105 (10th Cir. 2017). It reasons that because the statute
    applies in multiple states, fulfilling this purpose requires a uniform federal standard.
    I am not persuaded. There is certainly a federal interest in uniform national
    application of the federal statutes that govern whether there has been valid consent to an
    easement over Indian land. But once, as here, it has been determined that there has not
    been compliance with the statute, that interest in uniformity has been served. We begin
    with a “‘presumption that state law should be incorporated into federal common law.’”
    United States v. Turley, 
    878 F.3d 953
    , 956 (10th Cir. 2017) (quoting Kamen, 
    500 U.S. at 98
    )). That presumption has not been rebutted here.
    I see no reason why local law should not determine what consequences flow
    when the former beneficiary of an easement loses its rights to the easement. The district
    court construed Oklahoma law as giving the victim of a continuing trespass an automatic
    right to obtain an order requiring the trespasser to remove the offending property. In the
    circumstances here, that means that Enable must remove its pipeline. What that amounts
    to in practice—since removal of the pipeline apparently would not benefit the landowners
    —is that the landowners have increased bargaining power in determining what Enable
    3
    must pay to continue the easement. This is an inherent and important component of the
    substantive rights provided to Oklahoma property owners. The purposes behind the
    federal statutes at issue here relate only to providing a reasonable mechanism for
    obtaining consent to an easement from Indian landowners. They say nothing about how
    much bargaining power landowners should have in negotiating with those seeking
    easements. In colloquial terms, the federal government has no dog in that fight. This is
    not a case, for example, where the easement was granted under a federal condemnation
    statute. In that circumstance the federal interest in having a pipeline cross the property
    might weigh against requiring the former easement holder to remove the pipeline from
    the burdened land. But in the present circumstance there is no such federal interest. Why
    should remedial rights of Indian landowners be different from those of other landowners
    who granted easements to Enable for the same pipeline? In particular, why should the
    Indian landowners have less bargaining power to negotiate a new easement price than do
    the other landowners, who can rely on Oklahoma state law when Enable trespasses on
    their land?
    I acknowledge that there is problematic language in Guaranty Trust Co. of N.Y. v.
    York, 
    326 U.S. 99
     (1945), a diversity case. But as discussed at length in a leading
    treatise, the Supreme Court’s language is obscure, and it is far from clear that federal
    courts have independent authority (aside from constitutional provisions and federal rules
    of procedure) to reject state equitable principles in diversity cases. See Wright & Miller
    § 4513; id. at 567 (“as a general rule, when forum state law defines the underlying
    substantive right, state law also governs the availability of such equitable remedies as a
    4
    permanent injunction”). I would refrain from incorporating the difficulty of Guaranty
    Trust into federal-common-law doctrine when that doctrine appears to provide the means
    to resolve the issue before us.
    Also, I respectfully disagree with the panel opinion’s view that this case is
    governed by Supreme Court authority governing the availability of permanent injunctions
    as a remedy for federal statutory claims, as in eBay Inc. v. MercExchange, LLC, 
    547 U.S. 388
    , 391 (2006) (infringement suit under the Patent Act); Amoco Prod. Co. v. Vill. of
    Gambell, AK, 
    480 U.S. 531
    , 541–42 (1987) (preliminary injunction for violation of
    Alaska National Interest Lands Conservation Act); and Weinberger v. Romero-Barcello,
    
    456 U.S. 305
     (1982) (violation of Federal Water Pollution Control Act). In that context,
    one can presume that when Congress enacts a statutory cause of action it recognizes that
    traditional equitable relief is available. See Weinberger, 
    456 U.S. at 313
    . Here, however,
    there is no federal statutory cause of action.
    I hesitate to dissent from what I consider to be a fine opinion. But we are plowing
    new ground here, and I think it useful to express some of the considerations that may
    counsel a different approach.
    5