                     MINERALS MANAGEMENT SERVICE
                 Lease Sale Data File Record Layouts


                            PREBID.DAT

  Field Name              Starting Column       Number of Columns
_________________________________________________________________

  Lease Number                        1                         5
* Protraction Identifier (map)        7                         7
  Block Number                       16                         6
  Acreage (should divide by 1,000)   25                         7
  Royalty Rate                       33                        12 **
  Primary Lease Term in years        53                         2
  Number of Bids                     64                         2



*  Refer to translation files
** Royalty Rate was listed as 11 columns in previous versions



                              BID.DAT

  Field Name              Starting Column       Number of Columns
_________________________________________________________________

  Sale Number                         1                         7
  Lease Number                        9                         7
  Bid Amount                         17                        10
* Company Number                     28                         5
  Percentage of Bid                  36                         8


*  Refer to translation files





                       MAPS.DAT (Translation File)

  Field Name              Starting Column       Number of Columns
_________________________________________________________________


  Map Number                          1                         3
  Map Name                            5                        52
  Protraction Identifier             55                         7




                        COMPANY2.DAT (Translation File)

  Field Name              Starting Column       Number of Columns
_________________________________________________________________


  Company Qualification Number        1                         5
  Company Name                        7                        70







