Exxon Corporation v. Crosby-Mississippi ( 2000 )


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  •                     UNITED STATES COURT OF APPEALS
    For the Fifth Circuit
    No. 99-60466
    EXXON CORPORATION, A New Jersey Corporation,
    Plaintiff-Appellant,
    VERSUS
    CROSBY-MISSISSIPPI RESOURCE, LTD., A Mississippi
    Partnership; LYNN CROSBY GAMMILL, General Partner;
    STEWART GAMMILL, III, General Partner; STEWART
    GAMMILL, III, as Successor Trustee for Stewart,
    Gammill IV, Trust No. 2; LUCIUS OLEN CROSBY GAMMILL,
    Trust No. 2; JENNIFER LYNN GAMMILL, Trust No. 2; LUCIUS
    OLEN CROSBY GAMMILL; STEWART GAMMILL, IV; JENNIFER LYNN
    GAMMILL; STEWART GAMMILL, III, as Successor Trustee
    for Stewart Gammill, IV; ALL DEFENDANTS,
    Defendants-Appellees.
    Appeal from the United States District Court
    For the Southern District of Mississippi
    (3:89-CV-627)
    June 14, 2000
    Before EMILIO M. GARZA, DeMOSS, and STEWART, Circuit Judges.
    PER CURIAM:*
    Exxon     Corporation   (Exxon)   appeals   the   district   court’s
    *
    Pursuant to 5TH CIR. R. 47.5, the Court has determined that
    this opinion should not be published and is not precedent except
    under the limited circumstances set forth in 5TH CIR. R. 47.5.4.
    decision granting summary judgment in favor of defendants Crosby-
    Mississippi Resource, Ltd., et al. (collectively, CMR).                             This
    factually complex oil and gas dispute has been pending for more
    than ten years.          This Court previously considered an unrelated
    issue    in    a    prior     appeal.      See    Exxon    v.    Crosby-Mississippi
    Resources, Ltd., 
    154 F.3d 202
    (5th Cir. 1998).                     The single issue
    presented here is whether Exxon is obligated, by the terms of four
    separate joint operating agreements, to pay CMR a portion of a
    cost-free 3/16 royalty on some portion of the actual production
    from    each   of     four    individual    oil    wells    covered      by   the   four
    agreements.        The district court granted summary judgment in favor
    of CMR on this issue, and then certified the issue for immediate
    appeal pursuant to Federal Rule of Civil Procedure 54(b).                            We
    affirm, as         modified    by   this   opinion,    and      remand   for   further
    proceedings.
    I.
    We are here asked to interpret the purportedly unambiguous
    terms    of    four    substantively       identical       contracts     between    the
    parties, Exxon and CMR, and several non-parties, Prosper Energy
    Corporation, Petro-Hunt Corporation, and Propel Energy Company
    (collectively referred to as Prosper).                Our review is de novo, see
    Musser Davis Land Co. v. Union Pacific Resources, 
    201 F.3d 561
    , 563
    (5th Cir. 2000), and the parties agree that the controlling issues
    2
    are governed by Mississippi state law.            Exxon claims that the
    district court erred because the unambiguous terms of the contract
    require the conclusion that CMR is entitled only to its cost-
    bearing working interest on production, and not to any additional
    monies   in    the   form   of   a   cost-free   royalty   on   production.
    Alternatively, Exxon claims that, even if CMR is entitled to a
    royalty, Exxon is entitled to a similar and presumably offsetting
    royalty.      Finally, Exxon maintains that, even if CMR alone is
    entitled to a royalty, the district court miscalculated Exxon’s
    proportionate share of that royalty, thus diluting Exxon’s cost-
    bearing working interest in production under the four contracts.
    CMR defends the district court’s judgment rejecting each of these
    arguments.     The parties agree that the resolution of this case
    depends entirely upon the express terms of these four contracts,
    referred to herein as the joint operating agreements or JOAs, and
    not upon the terms of any other agreements.            We will therefore
    begin with an analysis of the relevant contract provisions.
    II.
    The four JOAs contain identical contract terms, aside from
    contract specific information identifying the lands, specifying the
    percentage of each parties’ working interest, and providing certain
    effective dates.      There are several exhibits to each of the four
    JOAs, two of which are relevant to the issue presented.           Exhibit A
    identifies the contract area covered by the particular JOA and
    3
    purports to define the parties “working interests” in the contract
    area.     Exhibit B is a form oil, gas, and mineral lease, which
    provides for the payment of a 3/16 royalty.
    Each JOA states that the parties have “reached an agreement to
    explore and develop these leases and/or oil and gas interests for
    the production of oil and gas.”      The “Definitions” section of the
    agreement provides, in relevant part:
    * * *
    B.     The terms “oil and gas lease,” “lease,” and
    “leasehold” shall mean the oil and gas leases
    covering tracts of land lying within the Contract
    area that are owned by the parties to this
    agreement.
    C.     The terms “oil      and gas interests” shall mean
    unleased fee and     mineral interests in tracts of
    land lying within   the Contract area that are owned
    by the parties to   this agreement.
    * * *
    G.     The terms “Drilling Party” and “Consenting Party”
    shall mean a party who agrees to join in and pay
    its share of the cost of any operation conducted
    under the provisions of this agreement.
    H.     The terms “Non-Drilling Party” and “Non-Consenting
    Party” shall mean a party who elects not to
    participate in a proposed operation.
    The “Exhibits” section of each JOA provides that the exhibits
    are incorporated by reference.      That section further provides, in
    relevant part, that:
    If any provision of any exhibit, except Exhibits
    “E” and “A” is inconsistent with any provision
    contained in the body of this agreement, the
    provisions in the body of this agreement shall
    4
    prevail.
    Article III is titled “Interests of Parties,” and contains
    four subparts; subpart A titled “Oil and Gas Interests,” subpart B
    titled “Interests of Parties in Costs and Production,” subpart C
    titled “Excess Royalties, Overriding Royalties and Other Payments,”
    and subpart D titled “Subsequently Created interests.” Article III
    provides, in relevant part:
    A.   Oil and Gas Interests:
    If any party owns an oil and gas interest in the
    Contract Area, the interest shall be treated for all
    purposes of the agreement and during the term hereof as
    if it were covered by the form of oil and gas lease
    attached hereto as Exhibit "B" and the owner thereof
    shall be deemed to own both the royalty interest reserved
    in such lease and the interest of the lessee thereunder.
    B.   Interests of Parties in Costs and Production:
    Unless changed by other provisions, all costs and
    liabilities incurred in operations under this agreement
    shall be borne and paid, and all equipment and materials
    acquired in operations on the Contract Area shall be
    owned, by the parties as their interests are set forth in
    Exhibit "A". In the same manner, the parties shall also
    own all production of oil and gas from the Contract Area
    subject to the payment of royalties to the extent of
    3/16 which shall be borne as hereunder set forth.
    Regardless of which party has contributed the
    lease(s) and/or oil and gas interest(s) hereto on which
    royalty is due and payable, each party entitled to
    receive a share of production of oil and gas from the
    Contract Area shall bear and shall pay or deliver, or
    cause to be paid or delivered, to the extent of its
    interest in such production, the royalty amount
    stipulated herein above and shall hold the other parties
    free from any liability therefor. No party shall ever be
    responsible, however, on a price basis higher than the
    price received by such party, (or any other party’s
    lessor or royalty owner, and if any such other party’s
    lessor or royalty owner shall demand and receive
    5
    settlement on a higher price basis, the party
    contributing the affected lease shall bear the additional
    royalty burden attributable to such higher price.
    Nothing contained in this Article III.B. shall be deemed
    an assignment or cross-assignment of interests covered
    hereby.
    Thus, each JOA expressly provides for the payment of a 3/16 royalty
    in at least two circumstances.               First, such a royalty is due to a
    party to the joint operating agreement whenever that party also
    owns unleased mineral interests in the contract area.                Article III
    subpart A provides that any party to the JOA, i.e. Exxon, CMR, or
    Prosper, that also owns an “oil and gas interest in the contract
    area,” shall own “both the royalty interest reserved” in the lease
    attached to the JOA as Exhibit B and the “interest of the lessee
    thereunder,”              which   is   a   cost-bearing   working   interest        in
    production.          See 8 HOWARD R. WILLIAMS & CHARLES J. MEYERS, OIL   AND   GAS LAW,
    MANUAL   OF   OIL   AND   GAS TERMS, at 566, 1193 (1999).   Each JOA defines the
    term “oil and gas interests” to mean “unleased fee and mineral
    interests . . . which are owned by the parties to this agreement.”
    Further, the “royalty interest reserved” in the lease attached as
    Exhibit B is a cost-free 3/16 royalty on production.                Thus, Article
    III subpart A, together with the lease attached as Exhibit B,
    provides that any party to the JOA, which also owns an unleased
    mineral interest in the contract area, is entitled to a 3/16 cost-
    free royalty on production (to the extent of that party’s unleased
    mineral interest and subject to the terms of the lease attached as
    6
    Exhibit B) in addition to that party’s working interest under the
    JOA.
    Second, Article III subpart B recognizes that a 3/16 royalty
    may be also be due to a third party, which is not a party to the
    JOA, such as the lessor of an oil and gas interest that was leased
    to one of the signing parties before the particular JOA was signed.
    Article III subpart B also addresses how any 3/16 royalty to be
    paid, whether owed to a party pursuant to subpart A or to a non-
    party pursuant to subpart B, is to be paid by the parties to the
    JOA.    Subpart B states that any royalty or other obligation not
    exceeding 3/16 of production will be paid by the parties “to the
    extent of” or in a manner proportionate to their working interest
    in production from the contract area. Subparts C and D essentially
    provide that any royalties or other obligations that are in excess
    of the 3/16 royalty described in subpart B or that constitute
    subsequently created or undisclosed interests will not be shared
    proportionate to ownership among the parties, but will remain the
    sole obligation of the party currently burdened by the obligation.
    Exhibit A describes the contract area, provides the names and
    addresses    of   all   parties   for   notice   purposes,   and   most
    significantly, defines the cost-bearing “working interests” of the
    parties.    Exhibit A provides, in relevant part:
    3.   Working Interests of Parties:
    In determining the interests of the parties hereto,
    Prosper, Propel and Petro-Hunt shall first be considered
    to be one party; and, similarly, Exxon and CMR, ET AL
    7
    shall first be considered to be one party
    PROSPER, PETRO-HUNT AND PROPEL             EXXON AND CMR, ET AL
    39.24%                                  48.26%
    If it should be subsequently discovered that the
    interest(s) of either Prosper, Propel and Petro-Hunt or
    Exxon and CMR et al is incorrect, the interest(s) of the
    parties in the Contract Area shall be retroactively
    adjusted to reflect the corrected interest in the same
    manner as the interest was calculated above.         Each
    signatory hereto shall alone bear any additional burden
    other than that provided in Article III hereof including
    but not limited to conversion options and all farm in and
    other obligations.
    As among Exxon and CMR et al, the working interests in
    the Contract Area provided for above, shall be divided as
    follows:
    EXXON CORPORATION        CROSBY-MISSISSIPPI RESOURCES, LTD
    76.00000%                            24.00000%
    The quoted percentages are drawn from one of the JOAs.              The
    specific percentage of Exxon and CMR’s combined working interest as
    compared to Prosper’s, i.e. the figures in the first line of
    percentages, varies by contract.          The way in which Exxon’s and
    CMR’s individual interest in the combined working interest is
    divided, however, remains constant, with Exxon owning 76% of the
    combined working interest and CMR owning 24% of the combined
    working interest. Exxon’s and CMR’s individual working interest is
    obtained   by   multiplying    the   combined   working     interest   for   a
    particular JOA by the percentage of the combined working interest
    which is owned by each of the parties.       For example, the JOA quoted
    above covers all of Section 26, Township 2 South, Range 17 West in
    8
    Pearl River County, on which has been drilled the So. Minerals No.
    26-10 oil well.   In that well, Exxon owns a 36.6776 percent cost-
    bearing working interest in production (calculated as 76 percent of
    the 48.26 percent combined working interest), CMR owns an 11.5824
    percent cost-bearing working interest in production (calculated as
    24 percent of the 48.26 combined working interest), and Prosper
    owns a 39.24 percent cost-bearing working interest in production.2
    As set forth above, Article III subpart B provides that each
    party’s royalty burden is to be determined with reference to and
    paid proportionate to its working interest in the contract area.
    Thus, for the JOA quoted above, Exxon is responsible for 36.6776
    percent of any royalty due, whether to a party owning an unleased
    2
    The remaining JOAs likewise define the parties’
    respective working interests in Exhibit A to the contracts. Under
    a JOA covering all of Section 2, Township 3 South, Range 17 West,
    on which has been drilled the Leo Flynt 2-7 oil well, Exxon owns a
    25.22754 percent working interest in production (calculated as 76
    percent of a 33.19413 percent combined working interest), CMR owns
    a 7.96659 percent working interest in production (calculated as 24
    percent of a 33.19413 percent combined working interest), and
    Prosper owns a 21.79688 percent working interest.      Under a JOA
    covering all of Section 10, Township 2 South, Range 17 West, on
    which has been drilled the So. Minerals No. 10-10 oil well, Exxon
    owns a 16.01768 percent working interest (calculated as 76 percent
    of a 21.0759 percent combined working interest), CMR owns a 5.05822
    percent working interest (calculated as 24 percent of a 21.0759
    percent combined working interest), and Prosper owns a 76.92410
    percent working interest. Finally, under a JOA covering all of
    Section 35, Township 2 South, Range 17 West, on which has been
    drilled the So. Minerals No. 35-1 oil well, Exxon owns a 35.45025
    percent working interest in production (calculated as 76 percent of
    the 46.64506 percent combined working interest), CMR owns a
    11.19481 percent working interest in production (calculated as 24
    percent of the 46.64506 percent combined working interest), and
    Propser owns a 40.17785 percent working interest.
    9
    mineral interest or to a third party lessor or obligor, CMR is
    responsible for 11.5824 percent of any such royalties, and Prosper
    is responsible for 39.24 percent of any such royalties.                Having set
    forth the relevant contract terms, we now turn to consideration of
    the specific arguments of the parties.
    III.
    Exxon argues that the district court erred by holding that the
    unambiguous terms of the four JOAs provide that CMR is entitled to
    a cost-free 3/16 royalty on production, in addition to CMR’s
    working interest as defined in Exhibit A to each JOA.              Exxon argues
    that, contrary to the district court’s conclusion, Exhibit A
    defines the parties’ total interest under each of the contracts,
    rather than their cost-bearing working interest.               This contention,
    which Exxon raises in a variety of ways, is belied by the plain
    language of Exhibit A, which refers exclusively to the “working
    interests” of the parties.
    Exxon responds that the term “working interests” in this
    context was intended to refer to something Exxon has labeled the
    parties’ “gross working interests.”          Thus, Exxon maintains that no
    party   can   ever   be   entitled   to    more   from   the    well    than   the
    percentage set forth in Exhibit A.          Exxon essentially argues that
    a joint operating agreement cannot provide for the same party to
    own both a cost-free royalty interest in subsequent production, if
    any, and a cost-bearing working interest in the same well.
    10
    Once again, this contention is belied by the plain terms of
    the contracts.     There is no language in any section of the JOAs
    suggesting that the parties intended anything other than that the
    terms “royalty interest” and “working interest” would have the
    ordinary and well-established meaning given to those terms in oil
    field contracts.    A working interest is a cost-bearing interest in
    production, generally created by an oil and gas lease.                     See 8 HOWARD
    R. WILLIAMS & CHARLES J. MEYERS, OIL   AND   GAS LAW, MANUAL   OF   OIL   AND   GAS TERMS,
    at 566, 1193 (1999); see also 
    id. at 952.
                The term “gross working
    interest,” in contrast, has a very particular and specialized
    meaning, derived in large part from the context of Department of
    Energy reporting.     See 
    id. at 474.
             There is simply no indication
    that the parties intended to employ that term, rather than the
    plain and unambiguous language used, in this contract.                          Moreover,
    and contrary to Exxon’s suggestion, there is no indication that the
    ownership of a working interest is inherently preclusive of any
    other interest in the well.              To the extent that a contract
    reserving both a royalty interest and a working interest in favor
    of the same party may be atypical, that does not give us the
    authority to avoid an unambiguously worded contract by rewriting
    the agreement for the parties.           See Otter Oil Co. v. Exxon Co.,
    U.S.A., 
    834 F.2d 531
    , 534 (5th Cir. 1987); see also Robin v. Sun
    Oil Co., 
    548 F.2d 554
    (5th Cir. 1977).
    In a related argument, Exxon contends that Exhibit A reflects
    11
    Exxon’s      and   CMR’s   agreement    to     pool    their   interests    without
    differentiating between them, such that Exxon owns 76 percent of
    the combined interests and CMR owns 24 percent of the combined
    interests.         Thus, Exxon argues, there is no difference between
    Exxon and CMR with respect to the combined interests, and the fact
    that       CMR   contributed   unleased      mineral    interests    while   Exxon
    contributed leases is of no moment.               Exxon concludes that Exxon
    bargained for and owns the precise and unencumbered percentage of
    gross working interest set forth in Exhibit A to each JOA.
    This argument must fail for similar reasons; that is, because
    it   is     premised   upon    the   theory    that    Exhibit   A   both   defines
    something more than an ordinary working interest and simultaneously
    precludes any other interest by the parties. Exhibit A defines the
    parties’ working interests.           As to those interests, we agree with
    Exxon that the JOAs arguably reflect an agreement not to treat
    Exxon’s and CMR’s interests differently.3 With respect to royalty,
    3
    On the other hand, we note that even Exhibit A provides
    for a division of the combined working interests of Exxon and CMR,
    while not similarly providing for such a division between the
    various entities collectively referred to herein as Prosper.
    Exxon’s argument that the JOAs reflect an intent not to
    differentiate between Exxon’s and CMR’s interests in any manner
    might be stronger if Exxon and CMR had entered into the JOAs as a
    single entity contributing a single block of undifferentiated oil
    and gas interests. But each of the parties signed the agreements
    in their individual capacity. Exhibit A provides for a division of
    the parties’ combined working interests.        Finally, and most
    significantly, Exxon has neither disputed that CMR continues to own
    unleased mineral interests within the contract areas defined by the
    individual JOAs nor clearly alleged that it owns some undivided
    portion of such interests itself. Absent such an allegation, the
    district court did not abuse its discretion by refusing to allow
    12
    however, the JOAs unambiguously provide that the owners of unleased
    mineral interests are entitled to a royalty interest, in addition
    to whatever working interest is retained by the parties.
    Exxon acknowledges the separate provision in Article III
    subpart A of the JOAs providing for a 3/16 royalty interest to
    parties, but argues that the provision is inapplicable for several
    reasons.      Exxon   first   maintains   that   there   is   an   inherent
    inconsistency between Article III subpart A and Exhibit A because
    the payment of a royalty under the first provision is inconsistent
    with its theory that the second provision defines the parties’
    total interest under the contract.         Exxon then relies upon the
    Exhibits section of the JOAs for the proposition that, in the case
    of a conflict, Exhibit A should be given controlling effect.            The
    problem with this argument is that it once more depends upon
    Exxon’s theory that Exhibit A defines the parties’ total interest.
    Given that we have already rejected that theory, there simply is no
    conflict requiring the supremacy of Exhibit A.
    Exxon next maintains that non-consenting parties, i.e. parties
    which are not participating in the production by bearing their
    proportionate share of costs and expenses, are entitled to the
    royalty specified in Article III of the JOAs, but that consenting
    parties, i.e. parties which have a defined interest under Exhibit
    A, are not.     There is no dispute about the fact that CMR was a
    Exxon to amend its pleadings to include such a claim.
    13
    consenting party with respect to each of the four wells covered by
    the JOAs.     The problem with this argument is that Article III
    subpart A simply does not distinguish between consenting and non-
    consenting interests or parties in any way.                   To the contrary,
    Article III subpart A is expressly provides that a royalty is due
    when   “any   party    owns    an   oil    and   gas    interest.”       Exxon’s
    interpretation requires that we insert a significant word of
    limitation by revising the provision to read that a royalty is due
    only   when   “any    [non-consenting]      party      owns   an   oil   and   gas
    interest.”    Neither the plain language of the applicable provision
    nor any other language in the JOAs suggests that the parties merely
    omitted this significant limitation when executing Article III
    subpart A.    The words as written are clear, and provide for the
    payment of a royalty to any party which also owns an unleased
    mineral interest in the contract area, without regard to whether
    that party is also participating in production as a consenting
    party.
    Finally, Exxon points out that the royalty provision states
    that parties owning an oil and gas interest “shall be treated for
    all purposes of this agreement” as if the interest were covered by
    the lease attached as Exhibit B.          Exxon then argues that providing
    a consenting party with a royalty interest is not one of the
    “purposes” of the JOA.        To establish this point, Exxon relies upon
    affidavit testimony that was not taken into consideration by the
    district court.       Even if we were inclined to consider anything
    14
    other than the plain terms of the contracts between the parties,
    Exxon’s argument in this regard must fail.                First of all, the
    quoted phrase is plainly not intended to limit or define the
    purposes of the JOA in any way, but merely to explain that the
    royalty interest forms part of the rights and obligations created
    by the JOA.       More importantly, Exxon’s affidavit testimony is
    offered to contradict the plain and unambiguous terms of the
    contract.   Contrary to Exxon’s argument, Mississippi law would not
    permit the admission of such evidence to contradict the plain terms
    of an unambiguous contract.        See Estate of Parker v. Dorchak, 
    673 So. 2d 1379
    , 1381 (Miss. 1996); Ross v. Brasell, 
    511 So. 2d 492
    , 494
    (Miss. 1987).
    In sum, we cannot accept Exxon’s argument that Exhibit A
    serves as   the    sole   source   of    the   parties’   interests   without
    ignoring the plain language of Exhibit A and deleting Article III
    subpart A, which has no purpose other than to provide for the
    payment of a royalty to parties signing the JOA, out of the
    contract.   This we cannot do.      See, e.g., Aetna Cas. & Sur. Co. v.
    Head, 
    240 So. 2d 280
    , 282-82 (Miss. 1970). Similarly, we cannot
    accept Exxon’s argument that Article III subpart A benefits only
    non-consenting parties without writing that significant word of
    limitation into the contract.       This, we likewise cannot do.        See,
    e.g., Glantz Contracting Co. v. General Elec. Co., 
    379 So. 2d 912
    ,
    916 (Miss. 1980) (”Courts do not have the power to make contracts
    15
    where none exist, nor to modify, add to, or subtract from the terms
    of one in existence.” (internal quotations omitted)).    For these
    reasons, we conclude that the district court correctly held that
    the terms of the four JOAs unambiguously call for the payment of a
    3/16 cost-free royalty to CMR.   That royalty is due, not upon all
    production, but only to the extent that CMR can establish that it
    owns unleased mineral interests in the contract area.   We now turn
    to the issue of how that royalty burden is to be divided among the
    parties to the JOAs.
    IV.
    In its final point, Exxon maintains that the district court
    miscalculated its proportionate share of the royalty due CMR as an
    unleased mineral interest owner by holding Exxon responsible for 76
    percent of any such royalty due.       While the district court’s
    writing on this point is not exceptionally clear, we agree with
    Exxon that the district court’s decision can be construed to hold
    Exxon responsible for 76 percent of the royalty due CMR under the
    JOAs.    We likewise agree that such a construction would be error.
    The     JOAs clearly provide that each party bears the burden of
    paying any royalty due under Article III, provided that royalty
    does not exceed 3/16, only “to the extent of its interest in such
    production.”    Thus, Exxon’s proportionate share of the royalty
    obligation to CMR can never exceed the percentage corresponding to
    16
    its individual (as opposed to combined) working interest under the
    particular JOA.    For example, under the JOA quoted in Section II,
    Exxon’s proportionate share of any royalty obligation to CMR for
    the So. Minerals No. 26-10 well cannot exceed 36.6776 percent of
    the total royalty obligation to CMR.
    To the extent that the district court held Exxon responsible
    for 76 percent of the royalty obligation to CMR, the error appears
    to be mathematical.    The allocation of Exxon’s and CMR’s combined
    working interest between those two parties is 76 percent to Exxon
    and 24 percent to CMR. The district court employed that allocation
    to reach its apparent conclusion that Exxon must pay 76 percent of
    any royalty due.     If Exxon’s proportionate share of the royalty
    obligation   is   calculated   with    reference   exclusively   to   those
    figures, however, with Exxon responsible for 76 percent of the
    royalty burden and CMR responsible for the remaining 24 percent of
    the royalty burden, then the entire burden will be paid by those
    parties with none of the royalty burden being allocated to the
    remaining parties to the contract, those entities collectively
    referred to as Prosper.4       The proper analysis would hold Exxon
    responsible for 76 percent of the royalty owed by both Exxon and
    4
    Although the fact should be obvious from our analysis, we
    pause to note for clarification purposes that CMR itself, as a
    party signing the JOAs, is likewise obligated to pay a portion of
    the 3/16 royalty owed to unleased mineral interest owners. Stated
    differently, CMR’s own working interest, as defined in Exhibit A to
    each JOA, is burdened by the obligation to pay a percentage of
    whatever 3/16 royalty is due, even if that royalty is owed to CMR
    itself.
    17
    CMR on the basis of their combined working interest.                       For example,
    using      the     JOA    quoted    in    Section       II    above,    Exxon    would   be
    responsible for 76 percent (Exxon’s share of Exxon and CMR’s
    combined working interest) of 48.26 percent (Exxon and CMR’s
    combined working interest in the JOA covering So. Minerals No. 26-
    10), or 36.6776 percent, of whatever sum comprises the 3/16 royalty
    due.
    For the foregoing reasons, we modify the district court’s
    judgment by clarifying that Exxon’s proportionate share of the
    obligation to pay CMR a royalty under Article III of the JOAs may
    not exceed Exxon’s actual and individual working interest in the
    contract area.
    CONCLUSION
    The decision of the district court granting CMR summary
    judgment         is    AFFIRMED     AS    MODIFIED       to     clarify   that    Exxon’s
    proportionate share of any royalty due CMR as an unleased mineral
    interest owner is limited to that percentage of the total burden
    which corresponds to Exxon’s individual working interest under the
    applicable JOA.            The district court is in all other respects
    AFFIRMED.        The     extent    to    which    CMR    owns    an    unleased   mineral
    interest, and therefore the precise royalty obligations of Exxon
    and CMR, are matters of proof which are beyond both the issue
    presented to this Court for appeal and the competence of the
    g:\opin\99-60466.opn                         18
    existing record.       We therefore REMAND to the district court for
    further proceedings consistent with this opinion.
    g:\opin\99-60466.opn               19