The Wyoming Supreme Court has upheld a lower court's ruling that Paul Sorum breached an oral guarantee to pay damages related to lease agreements. This decision affects Sorum and his co-defendant, Clean Crude, an oil processing company, as they face a total judgment of $114,537.56 in favor of Mike Sikorski, the plaintiff and former owner of Big Sky Limited of Wyoming. The ruling emphasizes the importance of oral contracts in business dealings and clarifies the legal standards surrounding personal guarantees.
The case, Paul J. Sorum v. Mike Sikorski and Big Sky Limited of Wyoming, was filed under docket number S-26-0035. The dispute has been ongoing for several years, stemming from lease agreements between Clean Crude and Big Sky for oil storage tanks. The Wyoming Supreme Court's ruling, delivered on August 11, 2026, is significant because it reinforces the enforceability of oral guarantees in contract law.
Background
Paul Sorum and Mike Sikorski have been involved in a lengthy legal battle over contract claims. The dispute began when Big Sky Limited of Wyoming, represented by Sikorski, filed a lawsuit against Clean Crude, alleging breach of contract and failure to pay lease payments for oil storage tanks. The lawsuit also included claims of fraud and unjust enrichment.
Initially, the district court ruled in favor of Big Sky, finding that Clean Crude had breached its lease agreements. However, Sorum, who was a co-owner of Clean Crude, contested the ruling, particularly regarding an alleged oral guarantee he made to Sikorski. The case was previously reviewed by the Wyoming Supreme Court in 2024, which remanded the matter to allow Sorum to testify about the oral guarantee. The remand was limited to this specific issue, and the district court was instructed to reconsider the evidence related to the oral guarantee.
The Ruling
Upon remand, the district court held a limited hearing where Sorum was allowed to testify about the alleged oral guarantee. After considering Sorum's testimony and the evidence presented during the original trial, the district court reaffirmed its previous judgment against Sorum, concluding that he did indeed make an oral guarantee to pay for the leases with personal funds.
The court found: "This oral promise was definite in its terms as it referred to equipment and services known to the parties and already in place, and it related to charges that were well known to the parties that had been and continued to be incurred."
The Wyoming Supreme Court agreed with the district court's findings, stating that the evidence supported the conclusion that Sorum breached the oral guarantee. The court emphasized that Sorum's testimony was not credible and that the evidence presented by Sikorski was sufficient to establish the existence of the oral contract.
Impact
This ruling has implications for business owners and individuals involved in contractual agreements. It underscores the enforceability of oral guarantees and the importance of clear communication in business transactions. The court's decision also clarifies that oral contracts can be binding if the essential terms are defined with certainty and there is mutual assent between the parties.
The ruling may set a precedent for future cases involving oral guarantees, particularly in the context of business partnerships and contracts. It highlights the necessity for individuals to be cautious when making verbal commitments, as these can result in legal obligations.
What's Next
While Sorum has the option to appeal the decision, details regarding any potential appeal were not available in the court filing. There are no related cases pending that could affect this ruling at this time.











