Background

Robert S. May, as farmor, entered into a farmout agreement with INEOS USA Oil & Gas LLC covering Eagle Ford Shale leases. The agreement included provisions for a 30% reversionary back-in interest tied to payout calculations and retained-acreage provisions governing which portions of the leased acreage would remain with INEOS following drilling operations. The parties' dispute centered on three interrelated issues: the timing and nature of the property interest conveyed, the legal characterization of the retained-acreage provisions, and the methodology for calculating payout on the reversionary interest.

The Dispute

May argued the farmout agreement conveyed no interest until INEOS completed drilling performance, characterizing the transaction as creating only contractual obligations prior to drilling. INEOS contended it received immediate fee simple determinable title upon execution. The parties also disputed whether the retained-acreage provisions operated as covenants, conditions subsequent, or special limitations—a distinction carrying significant consequences for whether breach would require judicial action or cause automatic termination. Finally, May sought an aggregate payout calculation across all wells, while INEOS argued for well-by-well payout determinations that would prevent non-earning wells from triggering payout on earning wells.

The Court's Analysis

The Texas Business Court's Fourth Division granted partial summary judgment to INEOS on all three issues. The court held the farmout agreement conveyed a fee simple determinable interest immediately upon execution, not contingent upon subsequent drilling performance. This characterization aligned the conveyance with traditional property law principles governing present estates subject to special limitations rather than treating the arrangement as purely executory.

On the retained-acreage provisions, the court rejected both the covenant and condition subsequent characterizations, instead holding these provisions constitute special limitations. This determination means cessation of continuous drilling operations causes automatic partial termination of INEOS's interest in affected acreage without requiring May to take affirmative action or obtain judicial relief—the interest simply reverts by operation of law upon the occurrence (or non-occurrence) of the specified event.

Addressing the payout calculation methodology, the court adopted the earning-well-by-earning-well approach. The court rejected May's argument that non-earning wells could independently trigger payout obligations, holding that each earning well must achieve payout on its own economics before the 30% reversionary back-in interest activates for that particular well. This prevents cross-subsidization between wells and aligns payout timing with individual well performance.

Implications for Practitioners

The decision provides critical guidance on drafting and interpreting farmout agreements in Texas. Parties should carefully consider whether immediate conveyance or post-performance conveyance better serves their interests, as the distinction affects both property rights and remedies available upon breach. The characterization of retained-acreage provisions as special limitations rather than covenants or conditions subsequent significantly impacts the procedural requirements for termination and the certainty of title. Finally, the well-by-well payout methodology may require farmors to wait longer for reversionary interests to vest in earning wells while preventing them from leveraging non-earning wells to accelerate payout calculations.