Distance
Company Driver Document_id
Salt    Fred   1               592.0
               2               550.0
        John   3               961.0
               4               346.0
Bricks  James  10              244.0
               20              303.0
               30              811.0
        Fred   40              449.0
        James  501             265.0
Sand    Donald 15              378.0
               800             359.0

Distance
Company Driver Document_id
Salt    Fred   1               592.0
               2               550.0
Bricks  Fred   40              449.0