Texas Business Court Distinguishes Conditional Assignment from Agreement to Transfer in Eagle Ford Farmout Dispute
In a McMullen County Eagle Ford farmout dispute, the Business Court of Texas addressed whether a 2009 farmout agreement constituted a conditional assignment vesting immediate interest in the farmees subject to divestment, or merely an agreement to transfer requiring prerequisite performance. The court's partial summary judgment ruling turned on whether defendants' alleged failure to properly designate earned acreage within contractual deadlines would trigger automatic reversion of the leases to the farmors.
Background and Business Context
This case involves a 2009 farmout agreement covering oil and gas leases in the Eagle Ford Shale in McMullen County, Texas. A group of farmors—including numerous individual mineral owners and energy companies—assigned their leasehold interests to a group of farmees led by INEOS USA Oil & Gas LLC and Chesapeake entities. The dispute centers on two interconnected contracts: the Farmout Agreement and corresponding partial assignments executed by each plaintiff-farmor.
The Contractual Structure
Under the Agreement, plaintiffs-farmors assigned two leases to defendants-farmees. The Assignments conveyed each plaintiff's respective interest in the leases to defendants, with plaintiffs reserving a reversionary interest in all assets except those defendants "earned" through drilling activities. The Assignment specifically provided:
Futher, Grantor reserves for itself, its successors and assigns, a reversionary interest in and to all of the Assets herein assigned, to Grantor except for those Assets earned by Grantee upon the drilling of Earning Wells to Earned Depths, such reversion to occur upon the cessation of continuous drilling operations as contemplated by the Farmout Agreement.
The Agreement specified that a well "shall be declared an 'Earning Well' at such time as said well has been drilled to the" specified depth. Prior to drilling an Earning Well, defendants were required to "provide a legal description" of the Earned Acreage "to be designated" for that well. Within 30 days of completing an Earning Well, defendants were to file in the deed records a "designation of record" specifying the Earned Acreage.
The Core Legal Dispute
Defendants moved for partial summary judgment under Rule 166a(c) on multiple issues. The fundamental disagreement centered on the nature of the property transfer: whether the contracts conveyed the leases upfront as a conditional assignment subject to divestment, or merely granted defendants the right to earn property after performing prerequisite conditions. Plaintiffs argued that defendants' alleged failure to comply with designation requirements—specifically, filing legal descriptions of earned acreage within the contractual deadlines—would automatically divest defendants of their interests and trigger reversion to the farmors.
Procedural Posture
The Business Court of Texas, Fourth Division, heard arguments on February 24, 2026, on defendants' Motion for Partial Summary Judgment, plaintiffs' response, defendants' reply, defendants' objections to plaintiffs' summary judgment evidence, and plaintiffs' response to those objections. Judge Stacy Rogers Sharp partially granted and partially denied defendants' motion, though the specific holdings on each issue are not detailed in the available excerpt of the court's memorandum opinion.