Order of the Arrow Advancement Dates lists all active members of your troop who are members of the Order of the Arrow, sorted by name.   It shows the dates at which the scout earned each rank in Order of the Arrow.

To produce this report, go to Advancement → Order of the Arrow Reports → Order of the Arrow Scout Advancement Dates.

The information on this report does NOT come from awards.  This report is populated by fields in the Order of the Arrow section of the membership record.  For scouts, you will access these fields from the Active Scouts page; for adults, go to the Active Adults page.  Update the member and scroll down the detail page to the Order of the Arrow section, where you will find the fields you need to fill in for this report.