Texas Estates Code - EST § 201.052. Paternal Inheritance

(a) For purposes of inheritance, a child is the child of the child's biological father if:

(a-1) Notwithstanding Subsection (a), if a child has intended parents, as defined by Section 160.102, Family Code, under a gestational agreement validated under Subchapter I, Chapter 160, Family Code, the child is the child of the intended father and not the biological father unless the biological father is also the intended father.

(b) A child described by Subsection (a) or (a-1) and the child's issue shall inherit from the child's father and the child's paternal kindred, both descendants, ascendants, and collateral kindred in all degrees, and they may inherit from the child and the child's issue.

(c) A person may petition the probate court for a determination of right of inheritance from a decedent if the person:

(d) If under Subsection (c) the court finds by clear and convincing evidence that the purported father was the biological father of the child:

(e) This section does not permit inheritance by a purported father of a child, recognized or not, if the purported father's parental rights have been terminated.

(f) This section does not permit inheritance by a child for whom no right of inheritance accrues under Section 201.056 or by the child's issue.