ConocoPhillips Co. v. Koopmann

In this case, we must determine whether the common law rule against perpetuities invalidates a grantee's future interest in the grantor's reserved non-participating royalty interest. We hold that it does not, but on grounds different from those expressed by the court of appeals. However, we hold that the reservation's savings clause is ambiguous and affirm the court of appeals' remand on this issue. In addition, we hold that section 91.402 of the Texas Natural Resources Code does not preclude a lessor's common law claim for breach of contract. Finally, we affirm the court of appeals' judgment…