Mary Murray v. Bej Minerals, LLC , 908 F.3d 437 ( 2018 )


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  •                     FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    MARY ANN MURRAY; LIGE M.                        No. 16-35506
    MURRAY,
    Plaintiffs-Counter-Defendants-                D.C. No.
    Appellees,             1:14-cv-00106-
    SPW
    v.
    BEJ MINERALS, LLC; RTWF, LLC,                     OPINION
    Defendants-Counter-Claimants-
    Appellants.
    Appeal from the United States District Court
    for the District of Montana
    Susan P. Watters, District Judge, Presiding
    Argued and Submitted February 6, 2018
    Seattle, Washington
    Filed November 6, 2018
    Before: Milan D. Smith, Jr. and Mary H. Murguia, Circuit
    Judges, and Eduardo C. Robreno, * District Judge.
    Opinion by Judge Robreno;
    Dissent by Judge Murguia
    *
    The Honorable Eduardo C. Robreno, United States District Judge
    for the Eastern District of Pennsylvania, sitting by designation.
    2                  MURRAY V. BEJ MINERALS
    SUMMARY **
    Montana Law
    The panel reversed the district court’s summary
    judgment in favor of Lige and Mary Ann Murray, owners of
    a Montana ranch, who brought the action seeking a
    declaratory judgment that dinosaur fossils found on the
    ranch belonged to them as owners of the surface estate.
    In 2005, prior to the discovery of the fossils, Jerry and
    Robert Severson, the previous owners of the ranch, sold their
    surface and one-third of the mineral estate to the Murrays.
    In the conveyance, the Seversons expressly reserved the
    remaining two-thirds of the mineral estate.
    The panel held, as an initial matter, that definitions of
    “mineral” found in Montana statutes, like dictionary
    definitions, were contradictory and therefore inconclusive.
    The panel further held that the Montana Supreme Court has
    generally adopted the test in Heinatz v. Allen, 
    217 S.W.2d 994
    (Tex. 1940), for determining whether a particular
    substance was a mineral in the context of deeds and
    agreements regarding mineral rights to land. The panel held
    that under this test, the dinosaur fossils, which were rare and
    exceptional, were “minerals” pursuant to the terms of the
    deed, and belonged to the owners of the mineral estate. The
    panel rejected the Murrays’ policy-driven arguments to the
    Heinatz test. The panel remanded for further proceedings.
    **
    This summary constitutes no part of the opinion of the court. It
    has been prepared by court staff for the convenience of the reader.
    MURRAY V. BEJ MINERALS                      3
    Judge Murguia dissented, and she would hold that the
    district court correctly concluded that dinosaur fossils do not
    fall within the ordinary and natural meaning of the terms
    “minerals,” as that term was used in the mineral deed in this
    case. Judge Murguia would affirm the district court’s grant
    of summary judgment for the Murrays.
    COUNSEL
    Eric D. Miller (argued), Perkins Coie LLP, Seattle,
    Washington; Shane R. Swindle, Perkins Coie LLP, Phoenix,
    Arizona; for Defendants-Counter-Claimants-Appellants.
    Harlan B. Krogh (argued) and Eric Edward Nord, Crist
    Krogh & Nord PLLC, Billings, Montana, for Plaintiffs-
    Counter-Defendants-Appellees.
    OPINION
    ROBRENO, District Judge:
    Once upon a time, in a place now known as Montana,
    dinosaurs roamed the land. On a fateful day, some
    66 million years ago, two such creatures, a 22-foot-long
    theropod and a 28-foot-long ceratopsian, engaged in mortal
    combat. While history has not recorded the circumstances
    surrounding this encounter, the remnants of these Cretaceous
    species, interlocked in combat, became entombed under a
    pile of sandstone. That was then . . . this is now.
    In 2006, an amateur paleontologist uncovered the well-
    preserved fossils of the “Dueling Dinosaurs” on a Montana
    ranch (“the Ranch”) in an area known as Hell Creek. Lige
    4                   MURRAY V. BEJ MINERALS
    and Mary Ann Murray (“the Murrays”), the plaintiffs in this
    action, own the surface estate of the ranch where the fossils
    were found. In 2005, prior to the discovery of the fossils,
    Jerry and Robert Severson (“the Seversons”), the defendants
    and previous owners of the ranch, sold their surface estate
    and one-third of the mineral estate to the Murrays. In the
    conveyance, the Seversons expressly reserved the remaining
    two-thirds of the mineral estate, giving them ownership, as
    tenants in common with the Murrays, of all right, title, and
    interest in any “minerals” found in, on, and under the
    conveyed land.
    These fossils are now quite valuable. After a dispute
    arose regarding the true owner of the Dueling Dinosaurs and
    several other valuable dinosaur fossils found on the Ranch
    (including a nearly intact Tyrannosaurus rex skeleton, one of
    only twelve ever found) (collectively, “the Montana
    Fossils”), the Murrays filed this action seeking a declaratory
    judgment that the Montana Fossils belonged to them as
    owners of the surface estate. 1 In turn, the Seversons asserted
    a counterclaim seeking a declaratory judgment that the
    Montana Fossils belong to the mineral estate. The answer
    turns on whether the Montana Fossils are deemed “minerals”
    1
    Although the term “surface estate” is used by the district court and
    the parties to describe the property that constitutes the Ranch other than
    the mineral estate, “surface estate” is a misnomer. The mineral estate
    includes any minerals found “in, on or under” the conveyed land,
    including minerals found on the surface. The surface estate, in turn,
    includes all of the property other than minerals, including property
    underneath the surface. Thus, whether a substance is found on the
    surface of the Ranch or underneath the surface of the Ranch does not
    determine whether that substance is part of the surface estate or part of
    the mineral estate. Instead, the only relevant question is whether the
    substance is a mineral. As a result, whether the Montana Fossils were
    found under the surface of the Ranch or protruding from the surface of
    the Ranch is irrelevant to this litigation.
    MURRAY V. BEJ MINERALS                              5
    within the meaning of the mineral deed under Montana law.
    If the Montana Fossils are minerals, the Seversons, as
    majority owners of the mineral estate, will own two-thirds of
    the Montana Fossils. If the Montana Fossils are not
    minerals, they will belong to the Murrays in their entirety.
    Following the filing of cross-motions for summary
    judgment, the district court granted summary judgment for
    the Murrays, holding that, under Montana law, the Montana
    Fossils are not “minerals” within the meaning of the mineral
    deed. The Seversons now appeal. The district court had
    jurisdiction over this diversity action pursuant to 28 U.S.C.
    § 1332(a)(1). 2 We have jurisdiction pursuant to 28 U.S.C.
    § 1291, and for the reasons set forth below, we reverse the
    district court’s order granting summary judgment for the
    Murrays, and remand for further proceedings consistent with
    this opinion.
    I.
    The facts of this case are largely undisputed. George
    Severson previously owned property used as a farm and
    ranch in Garfield County, Montana (“the Ranch”). In 1983,
    he began leasing the Ranch to Mary Ann and Lige Murray
    2
    There is complete diversity between the plaintiffs and the
    defendants in the underlying action: Plaintiffs Mary Ann and Lige
    Murray are citizens of Montana; Defendant BEJ Minerals, LLC, is a
    Washington limited liability company with its principal place of business
    in Florida and members who are citizens of Florida and Washington;
    Defendant RTWF, LLC, is a Florida limited liability company with its
    principal place of business in Florida and members who are citizens of
    Florida; and Defendants Robert and Jerry Severson are citizens of
    Florida. In addition, the amount in controversy is over $75,000, as the
    parties agree that the Montana Fossils are worth millions of dollars.
    6                   MURRAY V. BEJ MINERALS
    (“the Murrays”), who worked there as ranchers. George
    Severson later transferred a portion of his property interest
    in the Ranch to his sons, Jerry and Robert Severson (“the
    Seversons”), and sold the remainder of his interest to the
    Murrays.
    The Seversons and the Murrays jointly owned and
    operated the Ranch until 2005, when the Seversons sold their
    surface ownership rights and a portion of their mineral rights
    to the Murrays. 3 The mineral deed that the parties executed
    and recorded in connection with the 2005 transaction (“the
    Deed”) stated that the Seversons and Murrays would own, as
    tenants in common, “all right title and interest in and to all
    of the oil, gas, hydrocarbons, and minerals in, on and under,
    and that may be produced from the [Ranch].” The purchase
    agreement for the 2005 transaction required the parties “to
    inform all of the other parties of any material event which
    may [affect] the mineral interests and [to] share all
    communications and contracts with all other Parties.”
    The Seversons and the Murrays have represented that, at
    the time of the sale, they did not suspect that there were any
    valuable dinosaur fossils buried beneath the surface of the
    Ranch. However, beginning a few months after the sale, the
    Murrays discovered several rare dinosaur fossils on the
    3
    Under the 2005 agreement, the mineral estate for all but one parcel
    of the Ranch is divided as follows: Robert Severson owns one third, Jerry
    Severson’s company, Severson Minerals, LLC, owns one third, and Lige
    and Mary Ann Murray each own one sixth. With respect to the other
    parcel, Billings Garfield Land Company, an unrelated third party, owns
    half of the mineral rights, with the other half distributed among the
    Seversons and Murrays in the same proportions as the remainder of the
    land’s mineral estate (one third to Robert Severson, one third to Severson
    Minerals, LLC, and one sixth to each of the Murrays).
    MURRAY V. BEJ MINERALS                           7
    property, including: (1) the fossils of two separate dinosaurs
    locked in battle when they died, nicknamed “the Dueling
    Dinosaurs,” discovered in 2006; (2) a fossilized Triceratops
    foot and skull, discovered in 2007 and 2011, respectively;
    and (3) a nearly complete fossilized Tyrannosaurus rex
    skeleton, nicknamed the “Murray T. Rex,” discovered in
    2013. 4 The ownership of all of these fossils (previously
    defined as “the Montana Fossils”) is implicated in this
    litigation.
    The parties agree that the Montana Fossils are rare and
    extremely valuable. The Murrays’ experts testified that,
    because fossils of dinosaurs interacting are rare, the Dueling
    Dinosaurs are a “one-of-a-kind find” with “huge scientific
    value.” Although the Dueling Dinosaurs have not yet been
    sold, they were appraised at between seven million and nine
    million dollars, and the parties have stipulated that the set is
    worth several million dollars. The Murrays sold the
    Triceratops foot for $20,000 and have offered to sell the
    skull for $200,000 to $250,000. Their expert, in an email
    attempting to sell the skull, described it as “one of the best if
    not the best Triceratops skull ever found.” Finally, the
    Murray T. Rex is one of only a dozen intact Tyrannosaurus
    rex skeletons ever found. The Murrays sold it to a Dutch
    museum in 2014 for several million dollars. The proceeds
    are being held in escrow pending the outcome of the instant
    litigation.
    4
    For additional background regarding the discovery of the Montana
    Fossils, see Mike Sager, Will the Public Ever Get to See the “Dueling
    Dinosaurs”?, Smithsonian Magazine, July 2017, available at
    https://www.smithsonianmag.com/science-nature/public-ever-see-
    dueling-dinosaurs-180963676/ (last visited Sept. 4, 2018).
    8                MURRAY V. BEJ MINERALS
    The Murrays first informed the Seversons about the
    Montana Fossils in 2008. After the Seversons asserted an
    ownership interest, the Murrays filed this action in Montana
    state court seeking a declaratory judgment that, as owners of
    the surface estate (i.e., all of the Ranch’s property other than
    the mineral estate, see supra note 1), they are the sole owners
    of the Montana Fossils. The Seversons removed the action
    to federal court and asserted a counterclaim seeking a
    declaratory judgment that the Montana Fossils are part of the
    mineral estate. 5
    During discovery, both parties produced experts who
    testified regarding the composition of the Montana Fossils.
    The Seversons’ expert, Raymond Rogers, testified that
    bones and teeth, including in living vertebrates, naturally
    contain the mineral hydroxylapatite. Rogers performed an
    x-ray diffraction test on the Montana Fossils and determined
    that they had recrystallized from hydroxylapatite into the
    mineral francolite during the fossilization process that
    occurred over millions of years. The Murrays’ expert, Peter
    Larson, agreed with Rogers regarding the fossilization
    process in general. However, Larson concluded that the
    Montana Fossils had not been replaced by francolite, and
    instead contained the same patterns of the mineral
    hydroxylapatite as a modern bison bone, “just as when [the
    dinosaurs were] alive.”
    Following discovery, the parties filed cross-motions for
    summary judgment. In an opinion dated May 20, 2016, the
    district court found that the Montana Fossils are not included
    5
    Robert Severson’s interest is now held by BEJ Minerals, LLC
    (“BEJ”), and Jerry Severson’s interest is now held by RTWF LLC
    (“RTWF,” and hereinafter, together with Robert Severson, Jerry
    Severson, and BEJ, “the Seversons”).
    MURRAY V. BEJ MINERALS                      9
    in the ordinary and natural meaning of “mineral” under
    Montana law and therefore are not part of the mineral estate.
    Accordingly, the court granted summary judgment for the
    Murrays. The Seversons now appeal.
    II.
    We review a district court’s ruling on motions for
    summary judgment de novo. Guatay Christian Fellowship
    v. County of San Diego, 
    670 F.3d 957
    , 970 (9th Cir. 2011).
    Summary judgment is appropriate when “there is no genuine
    dispute as to any material fact and the movant is entitled to
    judgment as a matter of law.” Fed. R. Civ. P. 56(a). We
    review a district court’s interpretation of state contract law
    de novo as well. AmerisourceBergen Corp. v. Dialysist
    West, Inc., 
    465 F.3d 946
    , 949 (9th Cir. 2006). The parties
    agree that Montana law applies.
    III.
    Under Montana law, the interpretation of a deed
    conveying an interest in real property is governed by the
    rules of contract interpretation. Mary J. Baker Revocable Tr.
    v. Cenex Harvest States, Coops., Inc., 
    164 P.3d 851
    , 857
    (Mont. 2007) (citing Mont. Code Ann. § 70-1-513). The
    interpretation of a contract is a question of law. 
    Id. Words in
    a contract are interpreted “in their ordinary and popular
    sense unless the parties use the words in a technical sense or
    unless the parties give a special meaning to them by usage.”
    Dollar Plus Stores, Inc. v. R-Montana Assocs., L.P.,
    
    209 P.3d 216
    , 219 (Mont. 2009). If the language in a
    contract is ambiguous, i.e., subject to at least two reasonable
    but conflicting meanings, then “a factual determination must
    be made as to the parties’ intent in entering into the
    contract.” Mary J. Baker Revocable 
    Tr., 164 P.3d at 857
    .
    10                  MURRAY V. BEJ MINERALS
    A.
    In order to determine the ordinary meaning of a word
    used in a contract, we typically begin with dictionary
    definitions. However, as the Supreme Court has recognized
    and is particularly applicable to this case, “[t]he word
    ‘mineral’ is used in so many senses, dependent upon the
    context, that the ordinary definitions of the dictionary throw
    but little light upon its signification in a given case.” N. Pac.
    Ry. Co. v. Soderberg, 
    188 U.S. 526
    , 530 (1903). In this case,
    for example, the parties do not dispute that the Montana
    Fossils are minerals in a scientific sense, as they are
    composed entirely of the minerals hydroxylapatite and/or
    francolite. 6 The Montana Fossils thus fit within definitions
    of the word “mineral” that focus on a substance’s chemical
    composition. See, e.g., Webster’s Third New International
    Dictionary, Unabridged 1437 (3d ed. 2008) [hereinafter
    Webster’s] (“an inorganic substance; especially: a mineral
    element whether in the form of an ion, compound, or
    complex”); New Oxford American Dictionary 1113 (3d ed.
    2010) (“a solid inorganic substance of natural occurrence”);
    Mineral, Black’s Law Dictionary (10th ed. 2014) (“Any
    6
    The parties’ experts testified that the bones and teeth of living
    vertebrates are composed of the inorganic mineral hydroxylapatite and
    various organic components, including, for example, tissue, marrow,
    nerves, blood vessels, and collagen. After a vertebrate’s death, all of the
    organic components of the bones and teeth eventually decompose,
    leaving only the inorganic mineral hydroxylapatite. Over time, this
    mineral may “recrystallize” into a different mineral, francolite. As noted
    above, the parties’ experts dispute whether the x-ray diffraction test
    results indicate that the Montana Fossils are composed of the mineral
    hydroxylapatite, or whether the Montana Fossils instead contain the
    mineral francolite (which the mineral hydroxylapatite could have
    recrystallized into during the fossilization process). The parties do not
    dispute, however, that the Montana Fossils are entirely composed of one
    or both of these two mineral substances.
    MURRAY V. BEJ MINERALS                    11
    natural inorganic matter that has a definite chemical
    composition and specific physical properties that give it
    value .”).
    Although the Montana Fossils clearly fall within these
    dictionary definitions of the word “mineral,” our analysis
    does not end there. Under traditional principles of contract
    interpretation, words are interpreted “in their ordinary and
    popular sense unless the parties use the words in a technical
    sense or unless the parties give a special meaning to them by
    usage.” Dollar Plus 
    Stores, 209 P.3d at 219
    . While the
    above-cited definitions of the word “mineral” are quite
    broad, other dictionary definitions are more narrow, relating
    to the manner in which a substance is used, as opposed to its
    chemical composition. For example, Webster’s includes the
    following secondary definition of “mineral”:
    any of various naturally occurring
    homogeneous or apparently homogeneous
    and usually but not necessarily solid
    substances (as ore, coal, asbestos, asphalt,
    borax, clay, fuller’s earth, pigments, precious
    stones, rock phosphate, salt, soapstone,
    sulfur, building stone, cement rock, peat,
    sand, gravel, slate, salts extracted from river,
    lake, and ocean waters, petroleum, water,
    natural gas, air, and gases extracted from the
    air) obtained for man’s use usually from the
    ground[.]
    Webster’s 1437.       Similarly, Black’s Law Dictionary
    provides one definition of mineral as including “[a]
    subsurface material that is explored for, mined, and
    exploited for its useful properties and commercial value.”
    Mineral, Black’s Law Dictionary (10th ed. 2014).
    12              MURRAY V. BEJ MINERALS
    Although, as explained above, the parties agree that the
    Montana Fossils fit within the scientific definition of
    minerals, they disagree about whether the Montana Fossils
    fit within the more narrow use-related definitions of
    minerals. The Murrays argue that they do not, while the
    Seversons argue that they do. Relying on dictionary
    definitions and several Montana mining statutes, the district
    court agreed with the Murrays and determined that:
    [T]he common understanding of “mineral”
    includes the mining of a hard compound or
    oil and gas for refinement and economic
    exploitation. In contrast, dinosaur fossils are
    the remains of once-living vertebrates. The
    fossils’ properties are not what make them
    valuable. Fossils are not subject to further
    refinement before becoming economically
    exploitable. Instead, the fossils are valuable
    because of their very existence. Dinosaur
    bones are not economically valuable to be
    processed into fuel or materials or
    manufactured into jewelry. Further, dinosaur
    fossils are not mined in the traditional sense,
    but rather discovered by happenstance.
    The definition that the court created – “the mining of a hard
    compound or oil and gas for refinement and economic
    exploitation” – did not itself appear in any of the dictionary
    or statutory definitions the court cited, but instead
    represented the court’s own interpretation of what it believed
    to be the relevant portions of those dictionary and statutory
    definitions.
    On appeal, the Seversons argue that the district court’s
    interpretation of the dictionary definitions is disconnected
    MURRAY V. BEJ MINERALS                            13
    from the definitions themselves, and that even the narrower,
    use-related dictionary definitions include – or at the very
    least, do not exclude – the Montana Fossils. The Seversons
    have the better of the arguments.
    First, the fact that the narrower dictionary definitions
    found in Webster’s and Black’s Law Dictionary emphasize
    the “use” of a substance does not exclude the Montana
    Fossils. Some of the Montana Fossils are being “used” for
    economic or commercial purposes: they were sold (or
    offered for sale) for millions of dollars and subsequently
    displayed in a museum that charges admission to view them.
    Further, certain of the definitions do not limit the “use” of
    the substance to use for economic or commercial purposes;
    surely the Montana Fossils are being “used” in the general
    sense. For example, under the Webster’s definition, the
    Montana Fossils are clearly “naturally occurring
    homogeneous . . . solid substances . . . obtained for man’s
    use.” Webster’s 1437. Although it could be argued that
    dinosaur fossils are unlike oil, gas, coal, and other substances
    traditionally thought of as minerals because they are not used
    as fuel, neither are many of the other substances specifically
    listed in the Webster’s definition, such as salt, sand, and
    gravel. In addition, as the Seversons point out, oil, gas, and
    coal all derive from the remains of plants and animals, 7 just
    like dinosaur fossils, and should not be treated any
    differently because they are valuable for a different reason.
    Second, there are other definitions of the word “mineral”
    not considered by the district court that explicitly include
    fossils in general. For example, an older edition of Black’s
    7
    See Webster’s (defining “fossil fuel” as “a fuel (such as coal, oil,
    or natural gas) that is formed in the earth from plant and animal
    remains”).
    14              MURRAY V. BEJ MINERALS
    Law Dictionary defines a mineral as including “all fossil
    bodies or matters dug out of mines or quarries, whence
    anything may be dug, such as beds of stone which may be
    quarried.” Mineral, Black’s Law Dictionary (6th ed. 1990).
    Given the inconsistencies in dictionary definitions of
    “minerals,” and recognizing that at least one of the
    definitions explicitly includes fossils as minerals, we
    disagree with the district court’s conclusion that the word
    “minerals” in the Deed did not encompass dinosaur fossils.
    As the parties agree that the Deed must be interpreted under
    Montana law, we next rehearse Montana law.
    B.
    The Montana Supreme Court, when tasked with
    interpreting the meaning of the word “minerals” in a similar
    deed, noted that the need to determine the ordinary and
    popular meaning of the term “mineral” has created
    “considerable confusion in mineral law litigation
    nationwide.” Farley v. Booth Brothers Land & Livestock
    Co., 
    890 P.2d 377
    , 379 (Mont. 1995).
    Attempting to make sense of the legal morass regarding
    the term “mineral,” the court observed:
    [t]he only reliable rule which surfaces from
    the confusing and inconsistent approaches
    taken by those courts attempting to ferret out
    the subjective intent of the parties is that the
    word ‘mineral’ means what the court says it
    means. The result is title uncertainty and the
    need to litigate each general reservation of
    minerals to determine which minerals it
    encompasses.
    MURRAY V. BEJ MINERALS                            15
    
    Id. (quoting Miller
    v. Land & Mineral v. Highway Comm’n,
    
    757 P.2d 1001
    , 1002 (Wyo. 1988)). Explaining that the
    question of the interpretation of the word “mineral” in a land
    transfer agreement was one of first impression in Montana,
    the court surveyed the definition of “mineral” in several
    Montana statutes and case law from other states. Finding
    these statutory definitions inconclusive, 8 the court rested on
    the following test from the Texas Supreme Court’s decision
    in Heinatz v. Allen, 
    217 S.W.2d 994
    (Tex. 1949):
    [S]ubstances such as sand, gravel and
    limestone are not minerals within the
    ordinary and natural meaning of the word
    unless they are rare and exceptional in
    character or possess a peculiar property
    8
    The court looked at two conflicting statutory definitions of mineral
    from Title 82 of the Montana Code, which relates to minerals, oil, and
    gas. The first statutory definition, relating to metal mine reclamation,
    defined “mineral” as:
    any ore, rock, or substance, other than oil, gas,
    bentonite, clay, coal, sand, gravel, phosphate rock, or
    uranium, taken from below the surface or from the
    surface of the earth for the purpose of milling,
    concentration, refinement, smelting, manufacturing,
    or other subsequent use or processing or for
    stockpiling for future use, refinement, or smelting.
    
    Farley, 380 P.2d at 379
    (quoting Mont. Code Ann. § 82-4-303(9)). The
    second statutory definition, from the section relating to “opencut”
    mining reclamation, defined “minerals” as “bentonite, clay, scoria,
    phosphate rock, sand, or gravel.” 
    Id. (quoting Mont.
    Code Ann. § 82-4-
    403(6)). Recognizing that these two statutory definitions were “not
    necessarily consistent” – given that one definition explicitly included
    scoria but it was “unclear” whether it would be included in the other –
    the court concluded that the term “mineral” has varying definitions in
    different contexts. 
    Id. 16 MURRAY
    V. BEJ MINERALS
    giving them special value, as for example
    sand that is valuable for making glass and
    limestone of such quality that it may be
    profitably be manufactured into cement.
    Such substances, when they are useful only
    for building and road-making purposes, are
    not regarded as minerals in the ordinary and
    generally accepted meaning of the word.
    
    Id. at 380
    (quoting Holland v. Dolese Co., 
    540 P.2d 549
    ,
    550–51 (Okla. 1975) (citing 
    Heinatz, 217 S.W.2d at 997
    )).
    The particular question at issue in Farley was whether
    “scoria,” a local term referring to the baked roof rock
    (composed of shale, sandstone and clay) that results from the
    burning of coal outcropping, was a mineral within the
    meaning of a mineral reservation in a lease agreement. 
    Id. at 380
    . Like the Montana Fossils, scoria is a mineral in the
    scientific sense, that is, it is composed of minerals. Applying
    the Heinatz test, the court noted that the scoria at issue was
    used in road construction, and then found that “[t]he use of
    scoria in constructing roadways does not elevate scoria to the
    status of a compound which is ‘rare and exceptional in
    character’ and therefore, a ‘mineral.’” 
    Id. (quoting Holland,
    540 P.2d at 550–51).
    On appeal, the Seversons argue, as they did below, that
    the Montana Fossils are minerals under the test adopted by
    the Montana Supreme Court in Farley. The Seversons claim
    that, pursuant to Farley, a substance that is technically a
    mineral in the scientific sense is also a mineral within the
    meaning of a real property agreement if it is rare and
    exceptional in character or possesses a peculiar property
    giving it special value. The Seversons then argue that the
    Montana Fossils satisfy that test because the Montana
    MURRAY V. BEJ MINERALS                       17
    Fossils are composed of mineral substances as a technical
    matter, and the Montana Fossils are rare and exceptional and
    have special value.
    In response, the Murrays first argue that the Montana
    Supreme Court did not adopt the Heinatz test in Farley as a
    general universally applicable measure to determine whether
    a substance is a mineral, and instead the court merely used
    the Heinatz test as a “secondary reference” to determine
    whether scoria was a mineral. They next argue that, to the
    extent Farley did adopt Heinatz’s “rare and exceptional”
    test, the test is a categorical one: a particular dinosaur fossil
    cannot be a mineral unless all dinosaur fossils, in general,
    are minerals. Because the Seversons admit that not all
    dinosaur fossils are rare and valuable – and that, in fact,
    many are virtually worthless – the Murrays contend that
    dinosaur fossils, including the Montana Fossils at issue in
    this case, are not minerals under Heinatz. The Murrays also
    argue that the test the Seversons ask this Court to adopt
    would create a confusing distinction between rare and
    valuable mineral fossils and common and worthless non-
    mineral fossils, requiring litigation with respect to each
    individual fossil. Instead, the Murrays urge the Court to
    focus its legal analysis on definitions of minerals found in
    various Montana statutes and regulations, under which, the
    Murrays claim, dinosaur fossils have “never” been defined
    as minerals under Montana law.
    We address each of these arguments in turn.
    C.
    As an initial matter, we agree with the Seversons that
    definitions of “mineral” found in Montana statutes, like
    dictionary definitions, are contradictory and therefore
    inconclusive. Contrary to the Murrays’ assertions, the
    18                   MURRAY V. BEJ MINERALS
    majority of the statutes and regulations the Murrays cite do
    encompass fossils in their definition of “minerals,” and those
    definitions that exclude fossils are limited to particular
    statutory schemes that are not relevant here. 9
    9
    The Murrays first cite a statutory definition stating in relevant part
    that “mineral” means “any . . . substance, other than oil, gas, bentonite,
    clay, coal, sand, gravel, phosphate rock, or uranium, taken from below
    the surface of the earth or from the surface of the earth for the purpose
    of . . . subsequent use or processing or for . . . future use.” See Mont.
    Code Ann. § 82-4-303(16)). Although the Murrays claim that this
    definition does not include the Montana Fossils, it does: the Montana
    Fossils are a substance (other than the specific substances listed) taken
    from below the surface of the earth for the purpose of subsequent use.
    The Murrays’ second statutory definition, which states that “mineral”
    means “any . . . nonrenewable merchantable products extracted from the
    surface or subsurface of the state of Montana,” see Mont. Code Ann.
    § 15-38-103(3)), is similarly applicable to the Montana Fossils: the
    Montana Fossils are nonrenewable, merchantable products, and they
    were extracted from the subsurface of Montana.
    The Murrays next argue that “minerals” cannot include dinosaur
    fossils in general because certain Montana statutes and regulations
    differentiate between “fossils” and “minerals.” The Murrays point to the
    definition for “general recreational use” within the Montana Department
    of Natural Resource’s regulations regarding surface management rules
    for leasing of state-owned land, which contains separate exclusions for
    the “collection, disturbance, alteration, or removal of archeological,
    historical, or paleontological cites or specimens (e.g. fossils, dinosaur
    bones . . .)” and “mineral exploration, development, or mining,” and
    notes that the former requires an antiquities permit and the latter requires
    a mineral lease or license. See Mont. Admin. R. 36.25.145. The Murrays
    also note that the Montana Historical Society has the power to collect
    and preserve “fossils, plants, minerals, and animals,” suggesting that the
    separate listing of “fossils” and “minerals” means that they must be
    distinct, non-overlapping categories. See Mont. Code Ann. § 22-3-107.
    Contrary to the Murrays’ assertion, the separate listing of minerals and
    fossils does not establish that fossils are not a subset of minerals. More
    MURRAY V. BEJ MINERALS                              19
    It is true that the Montana Supreme Court did not
    explicitly announce in Farley that it intended to adopt the
    Heinatz test for all mineral disputes going forward.
    However, fourteen years later, when faced with the next
    dispute regarding whether a substance was a mineral in the
    context of a deed, the Montana Supreme Court again quoted
    and applied the Heinatz test, pointing to Farley to support its
    reliance on Heinatz. See Hart v. Craig, 
    216 P.3d 197
    , 198
    (Mont. 2009). The Montana Supreme Court’s reliance on
    the Heinatz test for a second time reinforces our conclusion
    that the Montana Supreme Court has generally adopted the
    Heinatz test for determining whether a particular substance
    is a mineral in the context of deeds and agreements regarding
    mineral rights to land. 10
    fundamentally, these definitions relate to a particular statutory scheme
    and are not relevant here.
    Finally, the Murrays cite the federal Paleontological Resources
    Preservation Act (“the PRPA”), 16 U.S.C. § 470aaa, which defines
    “paleontological resources” as including “fossilized remains,” and the
    regulations under that act, which provide that “paleontological
    resources” do not include “coal, oil, natural gas, and other economic
    minerals that are subject to the existing mining and mineral laws.” See
    36 C.F.R. § 291.9(d). In addition to their irrelevance to this case since
    they apply to federal land, the PRPA regulations actually undermine the
    Murrays’ argument, because the regulations would not need to exclude
    coal, oil, natural gas, and other similar minerals from the definition of
    paleontological resources unless those substances would otherwise be
    included in the definition.
    10
    To the extent that the Montana Supreme Court has not formally
    adopted the Heinatz test, we predict that, if faced with the issue, it would
    do so. See First Intercontinental Bank v. Ahn, 
    798 F.3d 1149
    , 1157 (9th
    Cir. 2015) (explaining that, as a federal court sitting in diversity, “when
    the state’s highest court has not squarely addressed an issue, we must
    predict how the highest state court would decide the issue”) (internal
    20                 MURRAY V. BEJ MINERALS
    Under the Heinatz/Farley test, the court asks whether a
    substance that is scientifically a mineral is also “rare and
    exceptional in character or possess[es] a peculiar property
    giving [it] special value.” 
    Farley, 890 P.2d at 380
    (quoting
    
    Holland, 540 P.2d at 549
    (citing 
    Heinatz, 217 S.W.2d at 997
    )). As noted above, the parties disagree about whether
    the test is “categorical” or “non-categorical;” that is, whether
    all examples of a particular substance (e.g., all dinosaur
    fossils) must meet the test in order for some examples of the
    substance (e.g., the Montana Fossils at issue here) to be
    considered minerals.
    The Murrays do not argue that the Montana Fossils are
    not rare and exceptional or have special value. Instead, they
    contend that Farley did not address whether the test is
    categorical or not, and that we should reject the “non-
    categorical” approach as confusing and unworkable.
    It may well be that the non-categorical approach
    generates some unpredictability regarding which substances
    are rare and valuable enough to be considered minerals
    within the context of a mineral deed. Regardless, it is clear
    from the explanation provided in Heinatz, which the
    Montana Supreme Court quoted in Farley, that the test is
    non-categorical. The court gave the examples of “sand that
    is valuable for making glass” and “limestone of such quality
    that it may profitably be manufactured into cement,” 
    Farley, 890 P.2d at 380
    (quoting 
    Heinatz, 217 S.W.2d at 997
    ),
    suggesting that there exist sand that is not valuable for
    making glass and limestone that is not of such quality that it
    can become cement, neither of which would qualify as
    minerals under the test. Likewise, although many dinosaur
    quotation marks omitted) (quoting Glendale Assocs., Ltd. v. Nat’l Labor
    Relations Bd., 
    347 F.3d 1145
    , 1154 (9th Cir. 2003)).
    MURRAY V. BEJ MINERALS                     21
    fossils have little or no value, the Murrays concede that the
    Montana Fossils are rare and exceptional. Therefore, under
    the teachings of Farley, the Montana Fossils are “minerals”
    pursuant to the terms of the Deed, and belong to the owners
    of the mineral estate.
    The remainder of the Murrays’ arguments are policy-
    based criticisms of the Heinatz/Farley test. The Murrays
    argue that the test is disconnected from the ordinary and
    natural meaning of the word “minerals;” creates needless
    litigation to determine which substances are valuable enough
    to be considered minerals; and leads to absurd results in the
    case of dinosaur fossils, including jeopardizing museums’
    ownership of their fossil collections. Of course, as a federal
    court sitting in diversity, in matters of state law we are not
    free to impose our policy preferences over those of the
    Montana Supreme Court. In any case, the Murrays’
    assertions lack merit. The Farley test is connected to the
    ordinary and natural meaning of the term “minerals” as used
    in a deed, because the purpose of retaining or acquiring a
    mineral estate is to extract something valuable from the land.
    In a mineral estate transaction where the quantity, quality, or
    type of substances present underneath the land may be
    unknown to both the seller and purchaser of the mineral
    estate, it is logical to tie the definition of the material
    conveyed to whether or not it is valuable. Further, it is
    unlikely that the Farley test will result in much, if any,
    needless litigation, given the extremely broad definition of
    “value” provided in Heinatz, which included both glass and
    cement as examples of materials made of rare and valuable
    22                  MURRAY V. BEJ MINERALS
    minerals. Finally, the Murrays’ concern regarding museum
    collections is hypothetical and unlikely to arise often. 11
    IV.
    For the foregoing reasons, we reverse the decision of the
    district court granting summary judgment for the Murrays
    and remand for further proceedings consistent with this
    disposition.
    REVERSED AND REMANDED.
    MURGUIA, Circuit Judge, dissenting:
    Because I disagree with the majority’s conclusion that
    dinosaur fossils fall within the ordinary and natural meaning
    of the word “mineral” and that they accordingly pertain to
    the mineral estate, I respectfully dissent.
    The present case involves a dispute over ownership of
    several valuable dinosaur fossils that were found on a large
    ranch in Garfield County, Montana. The Severson family
    owned the ranch until 2005, when the mineral and surface
    estates were severed through a mineral deed that transferred
    11
    As the Seversons point out, a museum’s ownership of fossils
    would only be in doubt following this decision if the museum purchased
    fossils from the owner of the surface rights of the property where the
    fossils were found, the mineral estate was owned by another party that
    did not consent to the sale of the fossils to the museum, and the mineral
    estate was defined to include all “minerals” without any further
    definition or clarification of the term. Even then, if the mineral estate’s
    owner successfully sued the museum for ownership of the fossils, the
    museum could recover the value of the sale from the owner of the surface
    estate.
    MURRAY V. BEJ MINERALS                              23
    the surface estate to the Murrays in full, but made express
    reservations regarding the mineral estate. Specifically, the
    mineral deed granted to Severson Minerals LLC, Robert E.
    Severson, and the Murrays, in varying percentages,
    all right title and interest in and to all of the
    oil, gas, hydrocarbons, and minerals in, on
    and under, and that may be produced from the
    lands situated in Garfield County, Montana
    . . . together with the right, if any, to ingress
    and egress at all times for the purpose of
    mining, drilling, exploring, operating, and
    developing said lands for oil, gas,
    hydrocarbons, and minerals, and storing,
    handling, transporting, and marketing the
    same therefrom together with the rights to
    remove from said lands all of Grantors’
    property and improvements.
    After the transfer was executed, the Murrays—now owners
    of the surface estate and a portion of the mineral estate—
    discovered the first dinosaur fossil: a Pachycephalosaur
    spike cluster. Thereafter, the Murrays discovered and
    excavated more valuable fossils, including the “Dueling
    Dinosaurs” and the “Murray T-Rex.” The question presented
    in this case is whether these rare and valuable dinosaur
    fossils are “minerals” under the 2005 mineral deed.
    The question whether dinosaur fossils constitute
    “minerals” is a question of first impression under Montana
    law. 1 The Montana Supreme Court has twice considered
    1
    In spite of the novel question of law and the potential policy
    implications of this case, the parties did not request certification of this
    question to the Montana Supreme Court. See M. R. App. P. 15(3)(a)–(b).
    24               MURRAY V. BEJ MINERALS
    whether a particular substance constitutes a “mineral” for the
    purposes of property transfers. In Farley v. Booth Brothers
    Land and Livestock Co., 
    890 P.2d 377
    , 378 (Mont. 1995),
    the Montana Supreme Court asked whether scoria, a type of
    rock used in road construction, was a mineral. The court
    concluded it was not. 
    Id. at 381.
    In Hart v. Craig, the
    Montana Supreme Court considered whether sandstone used
    for rip-rap and landscaping was a mineral, again concluding
    that it was not. 
    216 P.3d 197
    , 211 (Mont. 2009). In both
    cases, the court looked to the particular properties of the
    substance to see if it fell within the “ordinary and natural
    meaning” of the term “mineral.” See 
    Farley, 890 P.2d at 380
    (quoting Holland v. Dolese Co., 
    540 P.2d 549
    , 550–51
    (Okla. 1975)); 
    Hart, 216 P.3d at 211
    (quoting Heinatz v.
    Allen, 
    217 S.W.2d 994
    , 997 (Tex. 1949)); see also Dollar
    Plus Stores, Inc. v. R-Montana Assocs., L.P., 
    209 P.3d 216
    ,
    219 (Mont. 2009) (Words in a contract are interpreted “in
    their ordinary and popular sense unless the parties use the
    words in a technical sense or unless the parties give a special
    meaning to them by usage.”).
    The “ordinary and natural meaning” test, as applied to
    minerals conveyed through a property transfer, was first set
    forth in a 1949 Texas Supreme Court case, Heinatz v. Allen,
    
    217 S.W.2d 994
    (Tex. 1949). The Texas court held that
    “mineral,” for the purposes of property transfers, is to be
    understood as used in its “ordinary and natural meaning
    unless there is a clear indication that it was intended to have
    a more or less extended signification.” 
    Id. at 997.
    The
    driving principle behind this test is to effectuate the intent of
    the contracting parties. 
    Id. (“The words
    ‘the mineral rights’
    used in the will are to be interpreted according to their
    ordinary and natural meaning, there being nothing in the will
    manifesting an intention on the part of the testatrix to use
    them in a scientific or technical sense.”). In other words,
    MURRAY V. BEJ MINERALS                              25
    when Party A transfers to Party B the rights to all “minerals”
    in the estate, the court presumes that parties intended to
    apply the ordinary and natural meaning of “minerals,” unless
    the contract says otherwise. In determining the ordinary and
    natural meaning of “mineral,” the Heinatz court considered
    several factors, including “the evidence as to the nature of
    the [substance], its relation to the surface of the land, its use
    and value, and the method and effect of its removal.” 
    Id. at 995–96.
    In concluding the limestone at issue was not a
    mineral, one factor that the court considered was that the
    limestone was not valuable, but the court also considered the
    fact that limestone was quarried at the surface and would
    significantly affect the use of the surface estate.
    As in Heinatz, in Farley and Hart, the Montana court
    considered several factors, such as the substance’s particular
    properties and use, in order to determine whether that
    substance was a mineral. Specifically, Farley and Hart relied
    on the principle that “substances such as sand, gravel and
    limestone are not minerals within the ordinary and natural
    meaning of the word unless they are rare and exceptional in
    character or possess a peculiar property giving them special
    value . . . . Such substances, when they are useful only for
    building and road-making purposes, are not regarded as
    minerals in the ordinary and generally accepted meaning of
    the word.” 
    Hart, 216 P.3d at 211
    (quoting 
    Heinatz, 217 S.W.2d at 997
    ); 
    Farley, 890 P.2d at 380
    (quoting
    
    Holland, 540 P.2d at 550
    –51).
    Here, the district court began by considering definitions
    of the term “mineral,” including dictionary, statutory, and
    regulatory definitions. 2 See, e.g., Mineral, Black’s Law
    2
    The majority goes to pains to distinguish each and every definition
    presented by the Murrays, in an effort to prove that fossils fall under none
    26                  MURRAY V. BEJ MINERALS
    Dictionary (10th ed. 2014); Mont. Code Ann. § 15-38-
    103(3); Mont. Code Ann. § 82-4-303(16). The district court
    noted that all of the definitions described the mining of hard
    substances or oil and gas that are primarily extracted for
    future refinement and economic purposes, and that dinosaur
    fossils do not seemingly fall into those statutory definitions.
    I agree with the district court’s summation of the quoted
    definitions. I further note that the district court’s observation
    is supported by the way the term “mineral” is used in the
    mineral deed here, which clearly contemplates traditional
    mineral extraction for an economic purpose.
    The district court went on to consider the unique
    properties of dinosaur fossils that distinguish them from
    those substances that we typically think of as minerals. The
    district court explained that fossils’ mineral properties are
    not what make them valuable, but instead the value turns on
    characteristics other than mineral composition, such as the
    completeness of the specimen, the species of dinosaur, and
    how well the fossil is preserved. The district court further
    noted that fossils are the remains of once-living vertebrates,
    with paleontological value, and that they are not refined for
    economic purposes or mined in the traditional sense, but
    rather are discovered by happenstance. These are precisely
    the same types of factors that were determinative in Farley,
    of them. While I would agree that no single definition cited by the district
    court or the parties on appeal is wholly dispositive here, I see no error in
    the district court’s use of these statutes in an effort to discern whether
    any similar properties exist among these definitions that might shed light
    on the scope of the term “mineral.” See Dollar Plus 
    Stores, 209 P.3d at 219
    ; Newman v. Wittmer, 
    917 P.2d 926
    , 930 (Mont. 1996) (“[S]tatutory
    definitions provide guidance in interpreting the ordinary and popular
    meaning of undefined terms in a restrictive covenant.”).
    MURRAY V. BEJ MINERALS                           27
    Hart, and Heinatz under the ordinary and natural meaning
    test.
    Indeed, if we only apply the factors applied by the Texas
    Supreme Court under Heinatz—“the evidence as to the
    nature of the [substance], its relation to the surface of the
    land, its use and value, and the method and effect of its
    removal”—we would still reach the district court’s
    conclusion that dinosaur fossils are not minerals. 3 Heinatz,
    
    217 S.W.2d 995
    –96. First, the nature of the substance here
    is organic matter that has fossilized over time into a mineral
    compound. This factor weighs in favor of finding that fossils
    are minerals. Second, however, fossils pertain much more
    closely to the surface of the land. Like the quarried limestone
    in Heinatz, fossils are not “mined” but rather excavated. A
    large excavation would interfere with the use of the surface
    estate—a factor which the Heinatz court found weighed
    heavily against a finding that limestone was a mineral. Third,
    the use and value of fossils are not akin to other substances
    deemed minerals, such as coal, gas, or oil, which are
    typically extracted for some economic purpose.
    Collectively, these factors lead to the conclusion reached by
    the district court here—that dinosaurs are not “minerals” as
    that term is ordinarily understood.
    In sum, the district court correctly concluded that
    dinosaur fossils do not fall within the ordinary and natural
    meaning of the term “minerals,” as that term is used in the
    mineral deed in this case. I would accordingly affirm the
    3
    I agree with the majority’s conclusion that although the Montana
    Supreme Court did not expressly adopt the Heinatz test, it would likely
    do so. In any event, the ultimate question—whether fossils fall within
    the ordinary and natural meaning of “mineral”—is the same under
    Farley, Hart, and Heinatz.
    28              MURRAY V. BEJ MINERALS
    district court’s grant of summary judgment for the Murrays.
    For these reasons, I respectfully dissent.