on the standard Arkansas mineral lease entitling the lessor to cancel a lease for nonproduction.  Concannon, who was named as a defendant in the suit, filed an application in the Eastern District of Pennsylvania for a restraining order against prosecution of the suit in Arkansas court on the ground that as a federal receiver he could be sued only with leave of the court that had appointed him, unless the suit fell within the statutory exception of 28 U.S.C. § 959 (1976).  See id. § 754.  The Gregorys and the Jerrys opposed the application for the restraining order on the ground that the leases were not within the receivership's jurisdiction because Concannon had failed to comply with that part of 28 U.S.C. § 754 requiringpermanently of jurisdiction over such property.  The court, therefore, interpreted section 754 as permitting a receiver who failed to file within ten days to reassume jurisdiction by a later filing, "especially where there are excuses for not filing within ten days, such as here, the death of the initial receiver, confusion in the records, and the injection of a receiver into a very complex matter by the Securities & Exchange Commission with practically no forewarning of the receiver of the problems involved, or the places where the property is located."  Furthermore, the district court determined that Weidert's filing of the order of his appointment, although done in conjunction with the Lion Oil Co. case and not accompanied by a filing of the SEC complaint, constituted substantial