This diversity ease arises from a lease of equipment for convenience stores. Griffin Petroleum, Inc. (GPI), the lessee, eventually closed its stores and stopped making lease payments to Frontier Leasing Corporation (Frontier), the lessor. Frontier thereupon brought suit against both GPI and Steven H. Griffin, the personal guarantor of GPI’s lease obligations. The District Court 1 granted summary judgment to Frontier. GPI and Mr. Griffin appeal.

*224 For reversal, appellants argue that genuine issues of material fact concerning the amount of damages Frontier is entitled to recover preclude summary judgment and require remand for further proceedings. Having reviewed both the applicable state law and the summary-judgment record de novo, we conclude that appellants’ arguments are meritless. No error of law appears and an extended opinion would lack significant precedential value. We therefore affirm on the basis of the District Court’s thorough and well-reasoned opinion. See 8th Cir. R. 47B.

Appellants’ motion to supplement the record is granted. Their various requests for relief from judgment on the grounds raised in their motion are denied. All of these requests arise from appellants’ post-judgment discovery that Wells Fargo & Co., which is on the District Court’s recu-sal list, has an undetermined direct or indirect pecuniary interest in the case. This interest was in no way obvious or discoverable by the District Court, and was not disclosed to the court, and the court therefore had no knowledge of it, until months after the court’s judgment had been entered and while the case already was on appeal in this Court. In these circumstances, we agree with the District Court that post-judgment relief on account of Wells Fargo’s interest in the case is not required. 2

The judgment of the District Court is affirmed.