I do solemnly swear that ___________ (insert name of decedent), deceased, died _______ (insert "without leaving any lawful will" or "leaving a lawful will, but the executor named in the will is dead or has failed to offer the will for probate or to accept and qualify as executor, within the period required," as applicable), so far as I know or believe, and that I will well and truly perform all the duties of administrator of the estate of ________ (insert name of testator) .
My name is ________ (insert name of administrator as it appears on the order appointing the person as administrator), my date of birth is ________ (insert date of birth of "administrator"), and my address is ________ (insert street, city, state, zip code, and country of "administrator"). I declare under penalty of perjury that ________ (insert name of decedent), deceased, died ________ (insert "without leaving any lawful will" or "leaving a lawful will, but the executor named in the will is dead or has failed to offer the will for probate or to accept and qualify as executor, within the period required," as applicable), so far as I know or believe. I also solemnly declare that I will well and truly perform all the duties of administrator of the estate of ________ (insert name of decedent).
Tex. Estates § 305.052