BNP Paribas Energy Trading GP v. FERC, No. 12-1242 (D.C. Cir. 2014)
Annotate this CaseTwo firms receiving gas storage service in the Washington Storage Field ceased taking service and "released" their storage rights to Paribas. The departing customers exercised their contract rights to buy back so-called "base gas" from the field's operator, Transco. Given the buy-back, Transco had to make new purchases to replenish its base gas so as to maintain service at the levels prevailing before the replacement. At the time of the exiting customers' departure, the historic customers who remained, and the new replacement customers, disputed whether the cost of the new base gas should be charged entirely to the replacement shippers ("incremental pricing") or should be charged to all shippers in proportion to their usage ("rolled-in pricing"). On appeal, Paribas challenged the Commission's ratemaking decisions under the Administrative Procedure Act (APA), 5 U.S.C. 551 et seq. In a decision purporting to apply the familiar "cost causation" principle, the Commission chose incremental pricing. The court concluded that the Commission failed to offer an intelligible explanation of how its decision manifested the cost causation principle; failed to explain how or why or in what sense the historic customers' continued demand did not share, pro rata, in causing the need for the new base gas, or, how or why or in what sense the historic customers did not share proportionately in the benefits provided by the new base gas; and brushed off Paribas's invocation of a seemingly parallel set of the Commission's own decisions. Accordingly, the court vacated and remanded.
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