*201OPINION

Appellants have perfected this interlocutory appeal, as permitted under NRCP 54(b), from a district court order which (1) granted respondents’ motion for summary judgment on four counterclaims; and, (2) ordered a fifth counterclaim stricken insofar as it applied to Southwest Gas Corporation and Utility Financial Corporation, and dismissed as to McKellar and Associates, for failure to state a claim upon which relief can be granted.

1. The first four (4) counterclaims involved the same issues which were previously considered and resolved against the corporate appellant, and others, in Lawrence v. Southwest Gas Corp., 89 Nev. 433, 514 P.2d 868 (1973).1 The Kellars, who were injected into this case as “officers and stockholders” of the corporate appellant, have offered no legal theory upon which they might, either in their individual capacity or as stockholders of the corporation, have either an equal or different claim than the corporation against respondents; and, since the non-liability of respondents has already been adjudicated, all of the appellants are barred from relitigating the counterclaims under the doctrine of res judicata.2

2. The contention that the district court erred in striking and dismissing appellants’ fifth counterclaim, being without merit, is also rejected. See Agran v. Isaacs, 306 F.Supp. 945 (N.D.Ill. 1969).

Affirmed.