| Field | Field Description | Length | Start | End | Format | Form | Notes | Example | Format Notes |
| 1 | COMPANY ID | 4 | 1 | 4 | 9(4) | ALL FORMS | Check w/Office of State Lands for you CO_IS | 0123 | Leading Zeros |
| 2 | FORM ID | 4 | 5 | 8 | X(4) | ALL FORMS | Valid Form Types are: MR10, MR20, MR30 MR40, MR41, MR50, MR51 | MR10 | |
| 3 | RETURN TYPE | 1 | 9 | 9 | X(1) | ALL FORMS | Must be O or A for original or amended | O | |
| 4 | UNIT | 6 | 10 | 15 | 9(6) | MR41, MR51 | Unit Operators must report by State Assigned Unit Number | 002345 | Leading Zeros |
| 5 | LEASE NO | 15 | 16 | 30 | X(15) | MR10,MR20, MR30, MR40, MR50 |
Payers and Lease Operators must report by the State Lease Number | 03-00125 | Left Justified and trailing blanks |
| 6 | PROPERTY ID | 20 | 31 | 50 | X(20) | MR10, MR20, MR30 |
Payers must report sales and royalty by their property IDs | 01003456A | Left Justified and trailing blanks |
| 7 | SALES PERIOD | 6 | 51 | 56 | 9(6) | ALL FORMS | 072003 | Must be of format MMCCYY | |
| 8 | PRODUCT CODE | 3 | 57 | 59 | 9(3) | ALL FORMS | Please note the change from 2 to 3 digits | 001 | Leading zeros |
| 9 | PRODUCTION UNITS | 9 | 60 | 68 | 9(9) | MR30, MR40, MR50 | Must be reported by Lease Operators and for Hard Minerals | 000100000 | Leading zeros, no decimals |
| 10 | GROSS SALES UNITS | 9 | 69 | 77 | 9(9) | ALL FORMS | Sales volume (MCF, bbls, gal, tons) | 000100000 | Leading zeros, no decimals |
| 11 | GROSS SALES VALUE | 12 | 78 | 89 | 9(9.2) | ALL FORMS | Sales Value ($) | 000200000.00 | Leading zeros with decimals |
| 12 | PROCESSING DEDUCTION | 12 | 90 | 101 | 9(9.2) | MR20, MR50, MR51 | If Applicable for Gas ($) | 000010000.00 | Leading zeros with decimals |
| 13 | TRANSPORTATION DEDUCTION | 12 | 102 | 113 | 9(9.2) | ALL FORMS EXCEPT MR30 | If Applicable for Oil or Gas ($) | 000020000.00 | |
| 14 | MISCELLANEOUS DEDUCTION | 12 | 114 | 125 | 9(9.2) | MR30 ONLY | Oil and Gas Filers enter all zeros | 000001000.00 | Leading zeros with decimals |
| 15 | MISC DEDUCTION TYPE | 3 | 126 | 128 | 9(3) | MR30 ONLY | Oil and Gas Filers enter all zeros | 001 | Leading zeros |
| 16 | NET SALES VALUE | 12 | 129 | 140 | 9(9.2) | ALL FORMS | Field 11 minus Field 12 minus Field 13 minus Field 14 ($) | 000170000.00 | Leading zeros with decimals |
| 17 | STATE ROYALTY | 12 | 141 | 152 | 9(9.2) | MR10, MR20 MR30 |
Field 16 times Royalty Rate times Tract Allocation ($) | 000028390.00 | Leading zeros with decimals |