U.S. Commodity Futures Trading Commission v. Parnon Energy Inc., 593 F. App'x 32

Two parallel suits: a CFTC enforcement action and a class action alleging Defendants (Parnon, Arcadia, Wildgoose, Dyer) manipulated light sweet crude oil futures in 2007–2008.
Several third-party market participants (Castleton, Vitol, Plains, Morgan Stanley, Shell) had produced confidential business documents to the CFTC during its nationwide investigation.
The CFTC produced a subset of those documents to Defendants in the enforcement action; the district court later ordered Defendants to produce the documents to the Class Plaintiffs in the class-action litigation.
The district court conditioned production on modified, more stringent protective orders limiting who may view highly confidential materials.
Appellants (the third parties) appealed, arguing lack of relevance, inadequate confidentiality protection, jurisdictional defects, and that the orders would chill future cooperation with agencies.
The Second Circuit affirmed the district court, finding the documents relevant, the protective measures adequate, and that the appeals were reviewable and not moot.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Relevance of third‑party documents to class action discovery	CFTC/Class: documents are broadly relevant to market perceptions, benchmarks, and scope analysis	Appellants: documents not shown relevant; sampling/date ranges insufficient	Court: relevance standard is broad under Rule 26; sampling approach and included documents fall within permissible discovery
Confidentiality vs. disclosure	CFTC/Class: protective orders (strengthened) adequately safeguard secrets	Appellants: privacy/competitive harm outweighs relevance	Court: district court properly exercised discretion; modified protective orders sufficiently protect confidential material
Appellate jurisdiction and mootness	Plaintiffs: appeals moot or premature after settlement	Appellants: Perlman doctrine and later final consent order preserve appellate jurisdiction	Court: Appeals reviewable under Perlman; CFTC action’s final consent order and lack of prejudice supply jurisdiction; not moot because court can order return/destruction or limit use
Policy concern that orders chill third‑party cooperation with agencies	CFTC/Class: notice was provided; agencies and district courts balance such concerns	Appellants: disclosure will deter cooperation in future investigations	Court: rejected chilling argument as insufficient to overcome discovery; advised agencies to give advance notice to affected third parties

Church of Scientology of California v. United States, 506 U.S. 9 (1992) (Perlman doctrine permits immediate appeal of discovery orders directed at disinterested third parties)
Perlman v. United States, 247 U.S. 7 (1918) (establishes principle that third‑party discovery orders can be immediately appealable)
Bankers Trust Co. v. Mallis, 435 U.S. 381 (1978) (final consent orders can render earlier interlocutory rulings final for appeal)
Smith ex rel. Smith v. Half Hollow Hills Central Sch. Dist., 298 F.3d 168 (2d Cir. 2002) (premature notices of appeal can be preserved when later events imbue orders with finality)
Leonhard v. United States, 633 F.2d 599 (2d Cir. 1980) (treatment of premature appeals where subsequent district‑court action supplies finality)
Calderon v. Moore, 518 U.S. 149 (1996) (mootness requires that an appellate court cannot grant any effectual relief)
Wills v. Amerada Hess Corp., 379 F.3d 32 (2d Cir. 2004) (district courts have wide discretion over pretrial discovery; reversal only for abuse of discretion)
Zervos v. Verizon New York, Inc., 252 F.3d 163 (2d Cir. 2001) (standards for abuse of discretion in discovery rulings)
Oppenheimer Fund, Inc. v. Sanders, 437 U.S. 340 (1978) (Rule 26 relevance construed broadly to include matters reasonably calculated to lead to admissible evidence)
Seattle Times Co. v. Rhinehart, 467 U.S. 20 (1984) (trial court’s broad discretion to issue protective orders under Rule 26(c))