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Texas Supreme Court Clarifies Notice Requirements and Non-Consent Penalties Under AAPL Form 610 Operating Agreement

Valence Operating Co. v. Dorsett Texas Supreme Court No. 03-0836 resolved
By Joel Reese · July 06, 2026 Texas Supreme Court

The Texas Supreme Court resolved a dispute over the 1977 AAPL Form 610 Model Form Operating Agreement, holding that operators may commence drilling before the thirty-day election period expires and that non-consent penalties are enforceable risk-allocation mechanisms rather than liquidated damages. The decision reversed the Court of Appeals and disapproved Hamilton v. Texas Oil & Gas Corp., clarifying that a working interest owner's election not to participate in proposed operations is not a breach of contract.

Joint Operating Agreement Texas Supreme Court Working Interest AAPL Form 610 Non-Consent Penalty

Background and Parties

Elmagene Dorsett, a nonoperator owner of a working interest in oil wells in Harrison County, Texas, brought an action against Valence Operating Company to recover for breach of contract. The parties operated under a modified 1977 American Association of Petroleum Landmen Form 610 Model Form Operating Agreement. Dorsett claimed Valence breached the agreement by failing to allow the thirty-day notice period to elapse before commencing work and by enforcing the non-consent penalty against her when she failed to elect to participate in proposed drilling operations.

Procedural History

The trial court in the 71st Judicial District Court, Harrison County, entered partial summary judgment in favor of Valence. The Texarkana Court of Appeals reversed and remanded. The Texas Supreme Court granted review and reversed the Court of Appeals, rendering judgment in favor of Valence.

The Supreme Court's Holdings

The Supreme Court held that the Model Form Operating Agreement permitted the operator to begin work before expiration of the thirty-day period for the nonoperator to notify other parties of the decision whether to elect to participate in the cost of the proposed operation. The Court examined the entire contract to harmonize all provisions, finding that the agreement placed no temporal limitation on the operator's ability to commence work on proposed oil drilling projects before the thirty-day election period expired.

On the non-consent penalty issue, the Court held that the penalty was not liquidated damages and was therefore enforceable. The Court explained that

liquidated damages clauses fix in advance the compensation to a party accruing from the failure to perform specified contractual obligations, whereas non-consent penalties reward consenting parties for undertaking a defined risk.
Because a working interest owner's election not to participate in proposed operations is not a breach, the non-consent penalty did not involve liquidated damages or an unenforceable penalty. The penalty allowed consenting parties to recoup costs before non-consenting parties could share production revenues, thereby rewarding risk-taking rather than compensating for breach.

Significance

In reaching its decision, the Supreme Court disapproved of Hamilton v. Texas Oil & Gas Corp., 648 S.W.2d 316, clarifying that the operator did not breach the contract and was not being punished. The Court emphasized that the nonoperator who elected not to participate did not breach the contract and was not being punished—rather, the consenting parties were being rewarded for assuming the risk of the proposed operations.