Texas Natural Resources Code - NAT RES § 91.0115. Casing; Letter of Determination

(a) The commission shall issue, on request from an applicant for a permit for a well to be drilled into oil or gas bearing rock, a letter of determination stating the total depth of surface casing required for the well by Section 91.011.

(b) The commission may charge a fee in an amount to be determined by the commission for a letter of determination.

(c) The commission shall charge a fee not to exceed $75, in addition to the fee required by Subsection (b), for processing a request to expedite a letter of determination.

(d) The fees collected under this section shall be deposited in the oil and gas regulation and cleanup fund.