Database users with DBA and other super roles assigned to them

--conn / as sysdba

select grantee, granted_role, admin_option
from   sys.dba_role_privs
where  granted_role in ('DBA', 'AQ_ADMINISTRATOR_ROLE',
                       'EXP_FULL_DATABASE', 'IMP_FULL_DATABASE',
                       'OEM_MONITOR')
  and  grantee not in ('SYS', 'SYSTEM', 'OUTLN', 'AQ_ADMINISTRATOR_ROLE',
                       'DBA', 'EXP_FULL_DATABASE', 'IMP_FULL_DATABASE',
                       'OEM_MONITOR', 'CTXSYS', 'DBSNMP', 'IFSSYS',
                       'IFSSYS$CM', 'MDSYS', 'ORDPLUGINS', 'ORDSYS',
                       'TIMESERIES_DBA')
/