store with lowest load

We have a table called stores.
SQL> desc stores;
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 ITEM                                  NOT NULL VARCHAR2(100)
 store                                      NOT NULL VARCHAR2(10)
 LOAD                                               NUMBER(10)

Sample data:
ITEM1 store0 60
ITEM1 store1 59
ITEM2 store0 61
ITEM2 store1 48
ITEM2 store2 48

When a user order ITEM1, for example, we need to find the store with the lowest load that has ITEM1.
This is what I wrote
select store from (select store from stores where Item='ITEM1' order by Load) where ROWNUM=1;

Is there a more efficient way to write the above query?