Exxon Corp v. FERC ( 2000 )


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  •                   United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued January 13, 2000    Decided March 24, 2000
    No. 97-1092
    Exxon Corporation, et al.,
    Petitioners
    v.
    Federal Energy Regulatory Commission,
    Respondent
    Consolidated Edison Company of New York, Inc., et al.,
    Intervenors
    On Petition for Review of an Order of the
    Federal Energy Regulatory Commission
    Thomas J. Eastment argued the cause for petitioners.
    With him on the briefs were Marc C. Johnson, Bruce A.
    Connell, Jennifer S. Leete, Linda L. Geoghegan and Michael
    L. Pate.
    Timm L. Abendroth, Attorney, Federal Energy Regulatory
    Commission, argued the cause for respondent.  With him on
    the brief were Jay L. Witkin, Solicitor, and Susan J. Court,
    Special Counsel.  John H. Conway, Deputy Solicitor, entered
    an appearance.
    Marc Richter, Harvey L. Reiter, Richard Arlen Rapp, Jr.,
    James H. Byrd, L. Clifford Adams, Jr., Allen Weinberg,
    Kenneth R. Carretta, John E. Holtzinger, Jr., Jacolyn A.
    Simmons and Kevin M. Downey were on the brief for
    intervenors.  Kent K. Carter, Joel F. Zipp, Michael J. Fre-
    muth, J. Paul Douglas and Mary L. Wright entered appear-
    ances.
    Before:  Williams, Randolph and Tatel, Circuit Judges.
    Opinion for the Court filed by Circuit Judge Williams.
    Dissenting opinion filed by Circuit Judge Randolph.
    Williams, Circuit Judge:  This case arises out of the Feder-
    al Energy Regulatory Commission's "unbundling" of inter-
    state gas pipelines' sales and transportation service.  As part
    of that unbundling, parties with firm rights to buy natural gas
    in the downstream areas served by Transcontinental Gas Pipe
    Line Corporation ("Transco") were given the right to convert
    their gas purchase entitlements into transportation service
    rights.  They evidently all did so, and are known as the "FT
    conversion shippers."  When Transco reached an unbundling
    settlement with its customers, these conversion shippers
    sought assurance that their rights to use of the pipeline
    upstream would be sufficiently firm.  FERC responded affir-
    matively, insisting that Transco give the service a priority
    that rendered it "essentially firm."  Transcontinental Gas
    Pipe Line Corp., 55 FERC p 61,446 at 62,345-46 (1991)
    ("Settlement Order").
    Ranged against the conversion shippers are "Indicated
    Shippers," led by Exxon, who are gas producers in Transco's
    production areas.  They contend that if the conversion ship-
    pers are to enjoy firm transportation service in the produc-
    tion areas, they should pay for it in the way that is predomi-
    nant for firm transportation service, i.e., by a two-part
    charge--first a reservation charge for the right to use the
    service, and second a usage charge covering the costs of
    actual usage.
    Transco filed tariffs under s 4 of the Natural Gas Act, 15
    U.S.C. s 717c, proposing such two-part rates, designating
    them "firm-to-the-wellhead" or "FTW" rates.  (Petitioners
    note that this is technically a misnomer;  the rates in fact
    would go only as far as producers' gathering systems.  But,
    as have all the participants, we use the FTW label.)  The
    Commission rejected the FTW rates, Transcontinental Gas
    Pipe Line Corp., 76 FERC p 61,021 ("Opinion No. 405"),
    denied rehearing, 77 FERC p 61,270 (1996) ("Opinion No.
    405-A"), and finally issued a further "Order on Rehearing
    and Request for Clarification," 79 FERC p 71,205 (1997),
    adhering to the rejection.  The Indicated Shippers petition
    for review.
    The Indicated Shippers also attack prior decisions in which
    the Commission rejected two-part FTW rates that Transco
    had proposed under s 5 of the Act, 15 U.S.C. s 717d, Trans-
    continental Gas Pipe Line Corp., 63 FERC p 61,194, rehear-
    ing denied, 65 FERC p 61,023 (1993).  We do not address
    those decisions directly.  In the s 4 cases, we find no rea-
    soned decisionmaking to support the Commission's rejection
    of Transco's filings.  If on remand the Commission adheres to
    that rejection and justifies it, the Indicated Shippers' ability
    to secure relief under s 5 will probably be remote;  if on
    remand the Commission accepts the Indicated Shippers' posi-
    tion under s 4, then of course they will need no relief under
    s 5.
    * * *
    At stake are rates governing gas transportation on "later-
    als" linking gas producers' gathering systems with Transco's
    main pipelines.  Transco was an early unbundler, reaching an
    unbundling settlement with its customers in 1991.  When
    FERC reviewed the settlement, representatives of the FT
    conversion shippers sought assurance of high priority for
    their use of these laterals.  (The service is dubbed "IT-feeder
    service";  nominally interruptible, it feeds the conversion ship-
    pers' entitlements to mainline capacity.)  FERC agreed, or-
    dering that
    Transco's tariff should specifically set forth the capacity
    priority of Rate Schedule IT feeder service, i.e., that such
    service is not firm but that it has priority over any other
    interruptible service regardless of the date of the service
    agreement.
    Settlement Order, 55 FERC at 62,377.  As everyone under-
    stood at the time, including FERC, this grant of priority
    made Transco's IT-feeder service for the FT conversion
    shippers "essentially firm."  
    Id. at 62,346.
     But the Commis-
    sion did not direct two-part rates for this "essentially firm"
    service, and it has been subject to only a single volumetric
    usage charge.
    In 1992 the Commission adopted Order No. 636, extending
    its restructuring of the gas industry.  See Pipeline Service
    Obligations and Revisions to Regulations Governing Self-
    Implementing Transportation under Part 284 of the Com-
    mission's Regulation of Natural Gas Pipelines after Partial
    Wellhead Decontrol, FERC Stats. & Regs. p 30,939 (1992).
    One of its goals was the creation of a "national gas market"
    with "head-to-head, gas-on-gas competition where the firm
    transportation rate structure is not a potentially distorting
    factor in the competition among merchants for gas purchasers
    at the wellhead and in the field."  
    Id. at 30,434.
     To this end,
    FERC ordered that when pipelines provide firm transporta-
    tion with a two-part fee structure, all fixed costs are allocated
    to the reservation charge so that the usage charge is based
    only on variable costs.  This new rate design was called
    "straight fixed variable" ("SFV").  It replaced "modified fixed
    variable" ("MFV") pricing, under which the usage charge for
    any two-part rate included a portion of a pipeline's fixed
    costs.  See United Distribution Cos. v. FERC, 
    88 F.3d 1105
    ,
    1167-68 (D.C. Cir. 1996) (upholding FERC's abandonment of
    modified fixed variable pricing);  see also 18 CFR s 284.8(d).
    With MFV the pipelines had varied in their allocation of fixed
    costs to the usage charge, and "[t]he Commission believed the
    MFV rate design distorted the unit delivered prices of gas,
    and thereby hindered the development of an efficient national
    market for gas."  Municipal Defense Group v. FERC, 
    170 F.3d 197
    , 199 (D.C. Cir. 1999).  With SFV the Commission
    hoped "to promote competition at the natural gas wellhead by
    increasing the transparency of natural gas pricing."  Texaco
    Inc. v. FERC, 
    148 F.3d 1091
    , 1094 (D.C. Cir. 1998).
    Because conversion from MFV to SFV often contradicted
    contracts between pipelines and purchasers, the Commission
    could require SFV only by invoking its authority to modify
    private contracts under the so-called "Mobile-Sierra doc-
    trine."  See Texaco 
    Inc., 148 F.3d at 1096-97
    ;  see also
    United Gas Pipe Line Co. v. Mobile Gas Corp., 
    350 U.S. 332
    (1956);  FPC v. Sierra Pacific Power Co., 
    350 U.S. 348
    (1956).
    Under Mobile-Sierra, FERC may modify a contract rate
    provision if (but only if) the "public interest" so requires, a
    standard understood by all to demand more of a showing by
    FERC, in rejecting rates, than is needed to reject rates under
    the "just and reasonable" standard of s 5.  See Papago
    Tribal Utility Auth. v. FERC, 
    723 F.2d 950
    , 953 (D.C. Cir.
    1983);  Northeast Utilities Service Co. v. FERC, 
    993 F.2d 937
    ,
    960 (1st Cir. 1993).  In part because of FERC's insistence
    that the MFV rate design will "distort gas market pricing to
    the detriment of the 'integrated national gas sales market,' "
    we have upheld FERC's abrogation of private contracts to
    convert natural gas pricing to SFV.  See 
    Texaco, 148 F.3d at 1097
    .  Nonetheless, in the s 5 proceeding alluded to at the
    outset of the opinion, the Commission rejected Transco's
    effort to establish a two-part SFV rate for the IT-feeder
    service enjoyed by Transco's conversion shippers.
    Following a Commission suggestion, Transco made a s 4
    filing that proposed two-part SFV rates in the production
    areas.  An administrative law judge to whom the Commission
    referred the matter rejected the rates on various grounds.
    Transcontinental Gas Pipe Line Corp., 72 FERC p 63,003
    (1995).  Transco and Indicated Shippers filed exceptions with
    the Commission, which in its decision dropped nearly every
    aspect of the ALJ's analysis save the conclusion--that the
    proposed rates were unjust and unreasonable.  See Opinion
    No. 405, 76 FERC p 61,021 (1996).  The Commission began
    by repudiating the ALJ's highly critical view of two-part rates
    and SFV.  First, "[a] reservation charge helps ration capaci-
    ty, whether in the market area or in the production area."
    
    Id. at 61,060.
     Second, rebutting the ALJ's belief that a two-
    part rate with reserved capacity was an anticompetitive "ty-
    ing" practice, it said there was nothing anticompetitive about
    putting shippers to a choice regarding whether or not to
    reserve capacity:  "These are the types of choices that con-
    sumers are constantly required to make in a competitive
    marketplace."  
    Id. Finally, any
    concerns regarding a tying
    effect once the choice to reserve was made were "tempered"
    by capacity holders' rights, established in Order No. 636, to
    release their capacity entitlements and thereby at least in
    part to offset the reservation costs.  
    Id. at 61,061.
     In fact,
    "this flexibility is enhanced on Transco's system by the right
    of firm shippers to release capacity in segments in order to
    tailor their capacity needs and alternatives to fit their needs."
    
    Id. Indeed, the
    Commission had little choice but to defend
    two-part SFV rates;  as it acknowledges, they are the pre-
    dominant method of pricing firm service in the wake of Order
    636, Resp. Br. at 39, so a FERC repudiation would have
    risked regulatory upheaval.
    But the Commission found a catch in Transco's proposal,
    the 1991 settlement:
    Transco proposes, in effect, to unilaterally modify those
    [1991] contracts so that the customer will pay a two-part
    rate for essentially the same firm service on the supply
    laterals.  This is unacceptable.  The customers must be
    given an opportunity to choose between firm or interrup-
    tible service.
    Opinion No. 405, 76 FERC at 61,061.  Thus the Commission
    offered its support for an "open season" where Transco's
    customers would be allowed to choose between firm and truly
    interruptible service (i.e., service that can and will be inter-
    rupted at times).  
    Id. at 61,061-62.
    Indicated Shippers petitioned for rehearing.  On the con-
    tract abrogation argument, they argued that "[a] change from
    IT-feeders to FTW is a change in rate structure that changes
    the apportionment of costs, just as costs are shifted upon the
    adoption of a change in rate design or cost allocation method.
    Such a change does not constitute an abrogation of existing
    contracts."  In other words, they said, Transco had proposed
    nothing different from the MFV-SFV shift that the Commis-
    sion had routinely endorsed--had, indeed, imposed on parties
    by overriding contracts in the name of the public interest
    under Mobile-Sierra.  The Commission, however, was reso-
    lute in defense of the prevailing rates.  Transco had proposed
    "a fundamental change to the rate design, not a mere cost
    reallocation."  Opinion No. 405-A, 77 FERC p 61,270 at 62,-
    127.  "A cost reallocation will not change a one-part rate into
    a two-part rate;  it will only change the level of existing
    charges."  
    Id. Indicated Shippers
    petition for review.
    * * *
    Under s 4 of the Natural Gas Act a pipeline proposing a
    rate change has the burden of showing that the proposed rate
    is just and reasonable.  If it meets that burden, FERC
    approves the rate regardless of whether there may be other
    rates that would also be just and reasonable.  See Western
    Resources, Inc. v. FERC, 
    9 F.3d 1568
    , 1578 (D.C. Cir. 1993);
    Public Serv. Comm'n v. FERC, 
    866 F.2d 487
    , 488 (D.C. Cir.
    1989).  The Commission is afforded a "narrow section 4 range
    of acceptance or disapproval of a pipeline's proposed
    changes."  Public Serv. 
    Comm'n, 866 F.2d at 491
    (quoting
    Sea Robin Pipeline Co. v. FERC, 
    795 F.2d 182
    , 183 (D.C. Cir.
    1986)).
    The Commission concedes that "two-part rates are permis-
    sible for firm service in the production area."  Opinion No.
    405, 76 FERC at 61,061;  see also 18 CFR s 284.8(d).  In
    fact, FERC informs us that such rates are "predominant" for
    firm service in the production area.  Resp. Br. at 39.  Thus a
    logical first question might be:  is Transco's IT-feeder service
    "firm service" of the sort for which SFV rates are, in FERC's
    words, "permissible" and "predominant"?
    FERC and the parties call the IT-feeder service "firm" or
    at least "essentially firm."  The term "essentially firm" de-
    rives from the 1991 settlement, see Settlement Order, 55
    FERC at 62,346, and FERC still agrees with that character-
    ization.  Opinion No. 405-A, 77 FERC at 62,129.  The qualifi-
    er--"essentially"--appears to derive from certain grandfa-
    thered firm service that predated the 1991 settlement.  See
    Settlement Order, 55 FERC at 62,345-46.  The qualifier
    might also derive from the paradoxical characterization of IT-
    feeder service in the Settlement Order, that it is "not firm"
    but also not to be interrupted.  See 
    id. at 62,377.
     FERC at
    times returns to this apparent doublespeak in Order No. 405,
    referring to "high priority, interruptible service."  Order No.
    405, 76 FERC at 61,061.  In this proceeding, FERC has at no
    time rested its decision on any claim that the qualifier "essen-
    tially" is material.  Accordingly, we treat the service as firm
    and the qualifier as immaterial, subject, of course, to the
    possibility that on remand the Commission may breathe life
    into the qualifier.
    And so we reach the central issue:  if two-part rates are
    permissible and predominant for firm service in the produc-
    tion area, and Transco is providing firm service in the produc-
    tion area, how can Transco's proposed rate not be just and
    reasonable?  The Commission offers two bases:  first, the
    contracts don't allow it, and second, "customers must be given
    an opportunity to choose between firm or interruptible ser-
    vice," what might be termed a "customer choice policy."
    Opinion No. 405, 76 FERC at 61,061.
    The Contracts
    The Commission's reliance on the prior contracts seems not
    to advance the case at all.  After the Supreme Court enunci-
    ated the Mobile-Sierra doctrine, it approved and gave effect
    to so-called "Memphis clauses," under which a pipeline by
    contract reserves the freedom to secure rate changes by
    standard filings with FERC such as those under s 4.  See
    United Gas Pipe Line Co. v. Memphis Light, Gas and Water
    Div., 
    358 U.S. 103
    , 110-15 (1958);  see also Union Pacific
    Fuels, Inc. v. FERC, 
    129 F.3d 157
    , 160 (D.C. Cir. 1997).
    Before us the Indicated Shippers assert, and the Commission
    does not dispute, that the contracts contained Memphis claus-
    es.  With a Memphis clause, the contract contemplates and
    allows section 4 filings and any "just and reasonable" rates
    that result from such filings.  Thus we are puzzled by the
    Commission's insistence, in the opinions under review and its
    brief here, that Transco's filing was inherently an "abroga-
    tion" of the contracts.  For example, the Commission states
    that Transco seeks to "unilaterally modify those contracts,"
    Opinion No. 405, 76 FERC at 61,061, and that "Transco's
    proposed unilateral change results in an abrogation of the
    contracts," Opinion No. 405-A, 77 FERC at 62,127.  See also
    Resp. Br. at 41-42.
    But with a Memphis clause, where is the "abrogation"?  At
    this point, one would suspect that part of FERC's theory of
    "abrogation" would be that the contracts gave rise to a
    Mobile-Sierra bar on two-part rates.  Opinions No. 405 and
    No. 405-A certainly imply as much (although without discuss-
    ing either Mobile-Sierra or Memphis).  But FERC's brief
    disclaims the presence of a Mobile-Sierra bar.  Resp. Br. at
    42.  Rather, FERC describes its analysis as merely "tak[ing]
    existing private contractual agreements into consideration,"
    
    id. at 42-43,
    citing three cases that purportedly encourage
    such consideration, one of which is the "Mobile" of Mobile-
    Sierra.  See 
    id. at 43
    (citing 
    Mobile, 350 U.S. at 338-39
    ;
    Associated Gas Distribs. v. FERC, 
    824 F.2d 981
    , 1009 (D.C.
    Cir. 1987);  Cities of Bethany v. FERC, 
    727 F.2d 1131
    , 1139
    (D.C. Cir. 1984)).
    Associated Gas and Cities of Bethany are not similar to the
    situation Transco presents;  they involve inquiries as to
    whether rates reached by private contract are discriminatory.
    And the Mobile citation is inapt because the Commission
    rightly disclaims any Mobile-Sierra bar in the contract.  Giv-
    en the presence of Memphis clauses, observations from these
    three opinions regarding "Congress's intention in the NGA to
    allow a vital role for private contracting between parties,"
    Associated 
    Gas, 824 F.2d at 1009
    , provide no apparent basis
    for rejecting a proposal for rates that undeniably meet the
    "just and reasonable" standard.
    Yet the Commission was ready to approve the rates under
    special circumstances;  because the proposed change was too
    "fundamental," Opinion No. 405-A, 77 FERC at 62,127, Tran-
    sco could apply it only after an open season.  This position
    confirms that the Commission perceives no Mobile-Sierra
    bar.  After such an open season, customers will either have
    firm service with a two-part rate or truly interruptible service
    with a purely volumetric rate;  they will not have their
    original bargain.
    And so we are left with something of a purple cow.  Ac-
    cording to the Commission, Transco sought an abrogation of
    the contracts by proposing a two-part rate, but the original
    one-part rate is not protected by a Mobile-Sierra bar.  The
    Commission must explain this state of affairs because it
    seems to defy the doctrines built upon Memphis and Mobile-
    Sierra.  Since Opinions No. 405 and No. 405-A do not discuss
    either of these cases, or their progeny, we safely conclude
    that there was inadequate explanation on this point.
    Customer Choice
    Perhaps intertwined with the theory of contractual abroga-
    tion, the Commission concludes that as a matter of policy
    Transco's customers should get a choice as to whether they
    pay a reservation charge for their firm service.  This policy is
    defended as something of a corollary of a policy that is part of
    the Commission's regulations:  the choice between firm and
    interruptible service.
    An interstate pipeline that provides firm transportation
    service under subpart B and G of this part must also
    offer transportation service on an interruptible basis
    under that subpart or subparts and separately from any
    sales service.
    18 CFR s 284.9(a)(1).
    Back at the time of the settlement, Transco's customers
    made a choice between firm and interruptible service;  they
    specifically asked FERC to guarantee them firm rights on
    the IT-feeders, and FERC did so.  The customers also
    received (temporarily, because of the Memphis clause) some-
    thing of a windfall--firm service but without paying for their
    entitlement to capacity.  Before these customers can be
    forced to pay for their firm service in the predominant
    manner (i.e., two-part rates), FERC says they must be given
    a new choice
    between purchasing a higher quality firm service with a
    reservation charge or purchasing a lower quality inter-
    ruptible service without a reservation charge.
    Opinion No. 405, 76 FERC at 61,060.  See also Opinion No.
    405-A, 77 FERC at 62,124 n.3 (speaking of the desirability of
    customer "choice of a higher quality firm service with a
    reservation fee and a lower quality interruptible service with-
    out a reservation fee" (emphasis added)).
    For practical purposes, the choice between firm and inter-
    ruptible service will usually entail a choice between two-part
    and one-part rates.  Two-part rates predominate for firm
    service, and interruptible service has only a one-part rate.
    The choice made in Transco's settlement did not correspond
    to this model, but the Commission does not make a coherent
    case as to why the new choice is required, or why a two-part
    rate structure--not merely permissible but predominant for
    the service chosen--is unjust or unreasonable.
    The Commission calls the imposition of a two-part rate a
    "fundamental" change in the rate structure, but a significant
    chunk of the Commission's opinion disclaims the criticism of
    reservation charges found in the ALJ opinion.  See Opinion
    No. 405, 76 FERC at 61,060-61.  The Commission does offer
    the terse conclusion that "[a] cost reallocation will not change
    a one-part rate into a two-part rate;  it will only change the
    level of existing charges."  Opinion No. 405-A, 77 FERC at
    62,127.  We are unsure why this should be relevant.  The
    basic idea of a Memphis clause is to reserve to the utility the
    power to file tariffs that can take effect if they pass Commis-
    sion scrutiny under its ordinary standards:  thus, if a filing
    under s 4 proposes rates that are just and reasonable, as
    these concededly are, they are to be accepted--regardless of
    the justness and reasonableness of the former rates.
    FERC's resistance here is especially odd in light of its
    aggressiveness in shifting pipelines with two-part rates from
    MFV to SFV.  If inclusion of a few fixed costs in the usage
    component of a two-part charge was so distortive of the
    market as to require the Commission's use of the Mobile-
    Sierra public interest standard to effect the MFV-SFV con-
    version, one would suppose a one-part charge for firm cus-
    tomers, with all fixed costs in a purely volumetric charge,
    would be similarly offensive.  The Commission's opinions in
    this case do not explain why Order No. 636's principles are
    not at play here on the side of the Indicated Shippers.1
    The policy embedded in the regulations is a choice between
    firm and interruptible service, and Transco's customers made
    that choice in 1991.  They got firm service and a one-part
    rate;  the pipeline got a Memphis clause.  The Commission's
    new policy that Transco's customers get a second choice
    (framed as one between two packages, firm service with a
    reservation charge or interruptible service without) rests on
    some heretofore unspoken reason why a reservation charge
    for firm service--concededly just and reasonable--is not just
    and reasonable because the customers had previously been
    receiving firm service under a purely volumetric charge.  The
    Commission's insistence that the change can be made only by
    an open season seems to amount to a belief that customers,
    having already elected firm service, must now be asked,
    "Firm service--is that your final answer?"  Why this second
    bite at the apple is needed remains a mystery.
    * * *
    Because the Commission has failed to "cogently explain
    why it has exercised its discretion in [the] given manner,"
    __________
    1 FERC's regulations provide that "[w]here the customer pur-
    chases firm service, a pipeline may impose a reservation fee or
    charge on a shipper as a condition for providing such service."  18
    CFR s 284.8(d) (emphasis added).  This regulation did not figure
    prominently in arguments on appeal.  It certainly implies that
    reservation fees are not required with firm service;  it expressly
    provides that they are permissible.
    Motor Vehicle Mfrs. Ass'n of U.S., Inc. v. State Farm Mut.
    Auto. Ins. Co., 
    463 U.S. 29
    , 48 (1983);  5 U.S.C. s 706(2)(A),
    we reverse and remand the case for reconsideration in light of
    this opinion.
    So ordered.
    Randolph, Circuit Judge, dissenting:  No party denies that
    Transco could exercise the Memphis clause and propose a
    rate change.  But the Commission still had a statutory duty
    to ensure that the company's s 4 proposal was "just and
    reasonable." 15 U.S.C. s 717c.  The Commission performed
    that duty and rejected Transco's filing because it did "not
    allow for a real choice of service options on Transco's supply
    laterals."  76 F.E.R.C. at 61,061.  I believe the Commission
    offered a reasoned explanation for its decision.
    The majority makes much of the Commission's mention of
    "abrogation of contracts," but then recognizes that this ratio-
    nale is "perhaps intertwined" with the customer choice policy.
    Maj. op. at 10.  Indeed, reference to the existing contracts
    was not an independent ground of the Commission's decision,
    but a necessary consequence of the customer choice policy.
    If two-part rates are just and reasonable only when custom-
    ers have already elected a reservation charge, then the
    Commission must ask the simple question whether the cus-
    tomers have in fact chosen a reservation charge.  The Com-
    mission indicated that it would allow a change in rates after
    an open season, which would alter the bargain in the original
    contract.  See 
    id. This demonstrates
    that the Commission
    was not nullifying the Memphis clause.
    Thus, the real question is whether the Commission was
    arbitrary and capricious in rejecting Transco's proposal based
    on the customer choice policy.  The Commission has rejected
    the idea of an outright ban on reservation charges, noting
    that such charges offer advantages to customers.  See 76
    F.E.R.C. at 61,059 (citing Order No. 436, 50 Fed. Reg. 42,408
    (1985)).  But the Commission also recognizes that reservation
    charges tie customers to the pipeline, creating an incentive to
    use the pipeline even if more efficient service can be obtained
    elsewhere.  See 76 F.E.R.C. at 61,060.  The Commission thus
    decided that it is best left to individual customers to "weigh
    whether the advantages of obtaining a firm right to service on
    the pipeline are worth the limits which the reservation charge
    will inevitably impose on the desirability of its switching to
    supplies on another system."  
    Id. Because Transco's
    propos-
    al denied conversion shippers an opportunity to make this
    cost-benefit analysis for themselves, the Commission rejected
    it.
    The majority emphasizes that customers have already cho-
    sen firm service.  See maj. op. at 12.  But the question is not
    whether customers already elected "essentially firm" service.
    The question is whether they already elected two-part rates.
    It is uncontested that they did not.  The majority also finds
    the Commission's decision "especially odd" because it suppos-
    edly conflicts with Order 636's principle against fixed costs in
    usage charges.  See 
    id. This takes
    Order 636 too far.  The
    Commission there decided only that "[i]f a reservation fee is
    charged, it must recover all fixed costs attributable to the
    firm service....."  18 C.F.R. s 248.8(d) (emphasis added).
    To find that fixed costs could never be included in usage
    charges would require doing away with interruptible service
    (which is necessarily a one-part rate), something the Commis-
    sion certainly did not intend.  According to the majority, the
    Commission rejected as unjust and unreasonable a two-part
    rate that is the "predominant manner" of "firm service."
    Maj. op. at 11.  This forgets that the predominant manner of
    service overall is to allow customers to choose whether to pay
    a reservation charge and receive firm service or to reject the
    reservation charge and receive lower priority service.  In-
    deed, the majority does not cite a single case (in either s 4 or
    s 5 proceedings) in which the Commission approved two-part
    rates when customers had not previously made the calculation
    that reservation charges would be advantageous.
    I therefore dissent.