Texas Property Code - PROP § 67.008. Title Not Affected

(1) when legal title to oil and gas may pass by agreement or operation of law subject to an oil and gas lien;

(2) the right of a first purchaser to take or receive oil and gas under the terms of a division order, provided that the division order does not modify, waive, or abrogate in any respect the rights of an interest owner under this chapter;  or

(3) subject to Section 67.009, the right of a first purchaser to take or receive oil and gas under an agreement to sell.