Lyle v. Jane Guinn Revocable Trust

*345OPINION

EVELYN V. KEYES, Justice.

This case involves the interpretation of an assignment of rights to an oil and gas lease commonly known as the Hogg-Ja-phet Lease. Appellants Kenneth R. Lyle and Warbonnet Exploration Company (“Warbonnet”) appeal the trial court’s interlocutory order granting partial summary judgment in favor of appellees, the heirs of Dan A. Japhet, a party to the original assignment (collectively, “the Ja-phet heirs”). In seven issues, Lyle1 argues that the trial court erred in denying his motion for summary judgment and granting the Japhet heirs’ motion for partial summary…