Opinion for the Court filed by Senior Circuit Judge WILLIAMS.
Petitioner Dominion Resources, Inc. is the surviving parent corporation in a merger of two already quite diverse companies, one (“Dominion”) primarily an electric power company, the other (Consolidated Natural Gas Company (“CNG”)) a natural gas pipeline with upstream and downstream affiliates. The parties refer to this type of merger as a “convergence merger.” Dominion here challenges the Federal Energy Regulatory Commission’s May 2000 Compliance Order requiring the pipeline subsidiary to observe FERC’s Standards of Conduct, 18 C.F.R. §§ 161.3, 250.16, in dealing with all of its energy affiliates in the post-merger entity. See
Dominion Resources, Inc. & Consolidated Natural Gas Co.,
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In June 1999 Dominion and CNG sought Commission authorization for their merger. See 16 U.S.C. § 824b. Dominion was a holding company with predominantly electric utility interests, specifically:
• Virginia Electric and Power Company, an electric transmission and distribution subsidiary; and
• Dominion Energy, a multifaceted firm active in
• power generation and power marketing, and
• oil and gas development and exploration.
CNG, in contrast, was a holding' company with predominantly gas utility interests:
*588 • CNG Transmission (“CNGT”), a gas pipeline;
• CNG Retail Services and CNG Power Services, both power marketers;
• various gas local distribution companies; and
• CNG Producing, a gas exploration and production firm.
Before the merger, CNG also owned Virginia Natural Gas, a local distribution company, but it divested that company pursuant to a Consent Order with the Federal Trade Commission. Merger Order,
The restrictions that the parties dispute come in the context of FERC’s pre-exist-ing generic Standards of Conduct. These limit interactions between gas pipelines and their gas marketing affiliates, with the aim of preventing pipelines from using their monopoly positions to obtain anti-competitive advantages in downstream gas markets. E.g.,
Inquiry Into Alleged Anticompetitive Practices Related to Marketing Affiliates of Interstate Pipelines,
Order No. 497, FERC Stats. & Regs. (CCH) ¶ 30,820 (1988) (“Order No. 497”);
Tenneco Gas v. FERC,
The Commission saw a similar risk in the onset of convergence mergers — that pipelines might use their market power in gas to manipulate downstream electric markets. E.g.,
San Diego Gas & Electric Co. and Enova Energy, Inc.,
In seeking Commission approval, Dominion and CNG proposed a narrower set of restrictions — ones applying such a Code of Conduct between the CNG pipeline and “affiliates [1] with wholesale power market-based authority [as opposed to ones selling at prices at cost by regulation] and [2] with whom CNG Transmission conducts transportation transactions.” Merger Order,
In its May 2000 Compliance Order, the Commission rejected Dominion’s interpretation of “corporate family.” Distinguishing
Enema,
the Commission held that the Merger Order required that the Standards of Conduct be applied “to all energy companies that would be affiliated under the proposed transaction.” Compliance Order,
Operating under the Commission’s order in the meantime, Dominion argued that the Commission should apply a “no-conduit rule” to information received by certain employees. See
Dominion Resources, Inc., Consolidated Natural Gas Co. and Dominion Transmission Inc.,
The Commission challenges this court’s jurisdiction over the petitions for review.
See Steel Company v. Citizens for a Better Environment,
The answer depends on whether a reasonable firm in Dominion’s position “would have perceived a very substantial risk that [the Merger Order] meant” what the Commission now says it meant.
ANR Pipeline Co. v. FERC,
Here we find that the Commission did not give the required notice. Dominion had little reason to believe that the Commission would interpret the Merger Order so sweepingly as to encompass all energy affiliates. In fact, the Merger Order’s language and context overwhelmingly suggested that Dominion’s interpretation was correct. The order discussed the comments of only two intervenors, the New York Public Service Commission and Allegheny Energy, and both sought to impose the Standards of Conduct only on links between the pipeline and all
electric
affiliates, not energy affiliates generally. Merger Order,
A scouring of the agency record — specifically Allegheny’s Motion to Intervene and its Motion for Clarification — confirms this interpretation. See, e.g., Motion for Clarification and Permission to Reply, and Reply of Allegheny Energy, Dominion Resources, Inc. and Consolidated Natural Gas Company, Docket No. EC99-81-000, at 8-9 (Sept. 8, 1999) (“Allegheny Motion for Clarification”) (expressing concern “that CNG’s interstate pipeline and local gas distribution company affiliates may share competitively sensitive information already in their possession with electric affiliates” (emphasis added)); id. at 10-13 (asking that electric employees be required to function independently of gas employees); Motion to Intervene and Request for Conditions of Allegheny Energy, Dominion Resources, Inc. and Consolidated Natural Gas Company, Docket No. EC99-81-000, at 13 (Aug. 5, 1999) (“The merger creates increased opportunities and incentives for CNG to share this information with the merged company’s electric affiliates _”).
Recall that Dominion and CNG had proposed a narrower set of limits to apply
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simply between the pipeline and a subset of electric affiliates — “affiliates [1] with wholesale power market-based authority and [2] with whom CNG Transmission conducts transportation transactions.” Merger Order,
Moreover, the Merger Order relied heavily — so far as precedent was concerned, exclusively — on the Commission’s
Enova
decision. In the two pages in which the Commission stated and explained its decision,
Therefore, the Applicants would need to revise their commitment so that the standards of conduct requirements apply to the “corporate family” as a whole.
Merger Order,
Therefore, the Applicants would need to revise their commitment so that the [Order No. 497] restrictions and requirements would be applicable to the corporate family as a whole....
Enova,
Before us the Commission relies heavily on some language not including the qualifier “electric,” such as “all the merged company’s affiliates,” “any combination of the energy companies that would be affiliated,” and “ ‘corporate family’ as a whole.”
Id.
at 61,477-78. But the context suggests that this language assumed “electric” as an implicit limitation. For example, the Commission rejected applying the Standards of Conduct to only “market-based” affiliates because “the merged company’s affiliates with cost-based rates could unduly profit from higher
electricity
prices when market rates are less than cost-based rates.”
Id.
at 61,478/1 (emphasis added). Indeed, the
Enova
merger order also used vague terms to describe the Commission’s concerns, expressing concern over “the potential for abuse between any combination of the energy companies that would be affiliated.”
Enova,
This order requires the applicants for a merger to submit a new analysis or to accept Standards of Conduct applying to all electric affiliates. (The applicants offered only those with market-based rates.)
Merger Order,
The reasonableness of the Compliance Order’s interpretation also sheds light on the likelihood that Dominion would have anticipated it. Here, of course, the jurisdictional question merges somewhat with the merits, for the predictability of a Commission position is related to its defensibility. Further, if the Commission’s late-revealed distinction of Enova were very powerful, that would operate both to justify the Compliance Order’s much more stringent terms and to undermine Dominion’s understanding that the words used in Enova would have the same meaning when used in the Merger Order; if the distinc *592 tion were plain, the reader would have to infer that only a loose analogy was meant.
In fact the Compliance Order’s insistence that the Standards of Conduct be imposed on “all energy affiliates,” rather than only “electric affiliates,” represents a sharp and unexplained break with FERC precedent and is otherwise arbitrary and capricious. See
ANR Pipeline Co. v. FERC,
The Commission’s attempts to distinguish
Enova
are rather thin. It principally stresses that the Dominion merger involves several separate gas local distribution companies (“LDCs”), whereas the LDCs in the Enova merger were part of other entities explicitly covered by the Standards of Conduct or the merger-related Code of Conduct. Compliance Order,
An LDC loophole may very well exist, but it is hardly as large as the Commission suggests. The Compliance Order completely fails to acknowledge that Sections 4 and 5 of Dominion’s Proposed Code of Conduct (“PCC”) impose restrictions on Dominion’s LDCs that are almost completely analogous to those imposed on pipelines under 18 C.F.R. § 161.3:
Section 4:
(i) Any employee engaged in the wholesale merchant function is prohibited from obtaining or receiving from an affiliated LDC any information that the affiliated LDC receives from any non-affiliated shipper or any potential non-affiliated shipper on its system.
(ii) Any employee engaged in the wholesale merchant function is prohibited from obtaining or receiving from an affiliated LDC information related to transportation of natural gas that is not contemporaneously provided to all potential shippers, affiliated and non-affiliated, on the affiliated LDC’s system.
(iii) Any employee engaged in the wholesale merchant function is prohibited from obtaining or receiving indirectly from any other employees of any affiliate information which the employee engaged in the wholesale merchant function is prohibited from obtaining or receiving directly from an affiliated LDC under clauses (i) and (ii).
(iv) To the maximum extent practicable, employees engaged in the wholesale merchant function will function independently of an affiliated LDC’s operating employees.
Section 5:
The Applicants further commit that no affiliated LDC will unduly discriminate in favor of any actual or potential affiliated electric generator and against any actual or potential non-affiliated electric generator regarding service availability, tariff provisions containing the rate and non-rate conditions of service, and/or the application and enforcement of any tariff provision.
*593 Sections 4 and 5 require LDCs to keep to themselves (i.e., not disclose to any power merchant affiliate) information received from non-affiliated shippers, compare PCC § 4(i) with 18 C.F.R. § 161.3(e), to disclose information related to gas transportation to all shippers contemporaneously (if disclosed at all), compare PCC § 4(ii) with 18 C.F.R. § 161.3(f), to separate “[t]o the maximum extent possible” LDC employees from those engaged in the wholesale merchant function, compare PCC § 4(iii) with 18 C.F.R. § 161.3(g), and to apply tariff provisions and to process requests for transportation without discrimination, compare PCC § 5 with 18 C.F.R. § 161.3(a)-(d). A threat exists only insofar as an LDC might become a conduit by which “pipeline information can reach electric affiliates: Section 4(i) is ineffective because it only prohibits LDCs from disclosing information received directly by the LDC from non-affiliated shippers. Section 4(ii) is possibly ineffective because its contemporaneous disclosure rule applies only to information related to gas transportation. And Section 4(iii) is irrelevant because it prohibits other affiliates from becoming conduits of LDC information; it provides no additional protection against LDCs becoming conduits of pipeline information.
In addressing this conduit problem, however, the Commission has used a tank to block a mousehole. Ordinarily, of course, the Commission is entitled to some deference on its choice of remedy. But the Compliance Order goes much further than any apparent need or any cure of the subtle distinction between this case and Enova. It prohibits the pipeline from sharing information with any affiliated energy company, whether it is an LDC or not. The Commission offers no justification for such a broad limitation.
Further, the Compliance Order destroys pre-merger integrations and their accompanying efficiencies, a change the Commission never justifies or explains. Before the merger, CNGT was subject only to the generic Standards of Conduct applicable between pipelines and their marketing affiliates; it was thus able to share information and employees with its gas exploration and production firm. Under the Compliance Order, however, this sharing is now proscribed. But the logic of correcting anticompetitive hazards posed by a merger implicitly suggests remedies only between the merging companies. After all, the most severe remedy available to an agency is outright prohibition of the merger, the ultimate in Chinese walls between the two entities. The Compliance Order, however, creates barriers within the pre-existing entities, without explanation. Of course, if the Commission has a general case for broader restrictions, it can make that case in the rulemaking that it has launched to expand the generic Standards of Conduct to “govern the relationships between the transmission providers and all of their energy affiliates, not just those engaged in marketing or sales functions.” Notice of Proposed Rulemaking, 66 Fed.Reg. at 50,-922/2 (2001).
Finally, we need not reach Dominion’s “no-conduit” rule arguments. Since we vacate the Compliance Order, the only employees subject to the Standards of Conduct will be those shared between the pipeline and its (gas or electric) marketing affiliates. Dominion already concedes that those employees should “be bound by the stricter ‘automatic imputation’ rule.” Dominion Brief at 35-36 & n.T7.
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In sum, the Merger Order was obscure enough that Dominion could not reasonably have been expected to anticipate the Commission’s later interpretation. Dominion therefore has standing to challenge *594 the Compliance Order. In addition, the Commission’s insistence that the Standards of Conduct be applied to all affiliated energy companies is an unexplained and unjustified departure from precedent. The Compliance Order is therefore arbitrary and capricious.
We vacate the Compliance Order and remand to the Commission for proceedings consistent with this opinion.
So ordered.
