presumed grant doctrine

Co-author Rusty Tucker

In Susan Davis Van Dyke et al. v. The Navigator Group. et al., the Eastland court of appeals applied recent fixed-versus-floating NPRI principles to a double-fraction mineral interest reservation.

In a 1924 Deed Mulkey conveyed property to White and Tom and reserved “one-half of one-eighth of all minerals …”

Davis (heirs and assigns of Mulkey) claimed ownership of half of the minerals pursuant to the reservation. Navigator (heirs and assigns of White and Tom) claimed that Davis only owns 1/16th and that Navigator owns the rest. Ruling on dueling motions for summary judgment, the trial court agreed with Navigator and declared, among other things, that the Deed was unambiguous and that the Mulkeys reserved 1/16th of the minerals (1/2 of 1/8th) and conveyed 15/16ths to White and Tom.

Davis asserted claims under the estate misconception theory and the presumed grant doctrine and asserted estoppel defenses. This post can’t do justice to the court’s deep dive into these theories. See this long form summary for more detail.
Continue Reading Fixed-or-Floating NPRI Principles Applied to Texas Mineral Reservation