(a) Royalties due under a lease of state land or minerals that are required to be paid to the land office, including leases on land on which a free royalty is reserved pursuant to Section 51.201 or 51.054 of this title, shall be due and shall be paid as provided in this section.
(b) The commissioner shall by rule set the date for making royalty payments and for filing any reports, documents, or other records required to be filed by the commissioner. However, the commissioner may not set the due date for royalty on oil before the 5th day of the second month succeeding the month of production and may not set the due date for royalty on gas before the 15th day of the second month succeeding the month of production.

(c) Royalty payments shall be accompanied by:
(1) an affidavit of the owner, manager, or other authorized agent, completed in the form and manner required by the land office and showing the gross amount and disposition of all oil and gas produced and the market value of the oil and gas;
(2) a copy of all documents, records, or reports required by the land office, confirming the gross production, disposition, and market value, including gas meter readings, pipeline receipts, gas line receipts, and other checks or memoranda of amount produced and put into pipelines, tanks, pools, and gas lines or gas storage;
(3) a check stub, schedule, summary, or other remittance advice showing by the assigned land office lease number the amount of royalty being paid on each lease; and
(4) other reports or records that the land office may require to verify the gross production, disposition, and market value.
(d) The lessee has the responsibility for paying royalties or having royalties paid by the date provided for payment in this section.
(e) If any royalty is not paid when due but is paid before the 31st day after the date on which it is due, a penalty of five percent of the royalty due shall be added to the unpaid amount due. If the royalty is not paid before the 31st day after the date on which it is due, a penalty of an additional five percent of the royalty due shall be imposed. The minimum penalty under this section is $25. The penalty may not be imposed in cases of title dispute as to the state’s portion of the royalty or to that portion of the royalty in dispute as to the market value of the production.
(f) The commissioner shall add a penalty of 25 percent to any delinquent royalty if a part of the delinquency is due to fraud or an intent to evade the provisions of this chapter.
(g) The annual interest rate on delinquent royalties is 12 percent. Interest accrues on delinquent royalties beginning 60 days after the date on which the royalty is due.
(h) If any report, affidavit, supporting document, or any other instrument required to be filed under this chapter is not filed when due, the commissioner shall charge a reasonable penalty in an amount established by rule adopted by the commissioner.
(i) Interest charged under Subsection (g) of this section or penalties under Subsection (e), (f), or (h) of this section are in addition to any other right, including forfeiture, that the commissioner may exercise for failure to submit a report or other instrument.
(j) By rule, the board may provide procedures and standards for reduction of interest charged or penalties assessed under this section or any other interest or penalties assessed by the commissioner relating to unpaid or delinquent royalties.