logically,
a table is owned by only one user.
there might be many similiar tables ( like the demo tables emp, dept) in many schemas.
so what are u exactly looking into?
mag@itloaner1_local > ED
Wrote file afiedt.buf

  1   select table_name,owner  from dba_tables
  2   where owner not in ('SYS','SYSTEM') AND TABLE_NAME='EMP'
  3*  ORDER BY TABLE_NAME
mag@itloaner1_local > /

TABLE_NAME                     OWNER
------------------------------ ------------------------------
EMP                            MAG
EMP                            SCOTT

mag@itloaner1_local >