Grant Select on all Tables Owned By Specific User

I need to grant select permission for all tables owned by a specific user to another user. Can I do this with a single command along the lines of:

Grant Select on OwningUser.* to ReceivingUser

Or do I have to generate the sql for each table with something along the lines of:

 Select 'GRANT SELECT ON OwningUser.'||Table_Name||'TO ReceivingUser' 
 From All_Tables Where Owner='OWNINGUSER'