This is normal. You have created local indexes for a partitioned table.
Code:
SQL> Create table emp (
2 Emp number,
3 Name varchar2(20))
4 Partition by range (emp)
5 (Partition emp1 values less than (100),
6 Partition emp2 values less than (200),
7 Partition emp3 values less than (300));
Table created.
SQL> select index_name from user_indexes where table_name='EMP';
no rows selected
SQL> CREATE INDEX ind_emp ON emp(emp) LOCAL;
Index created.
SQL> select index_name ,status from user_indexes where table_name='EMP';
INDEX_NAME STATUS
------------------------------ --------
IND_EMP N/A
SQL> select INDEX_NAME,PARTITION_NAME,STATUS from user_ind_partitions;
INDEX_NAME PARTITION_NAME STATUS
------------------------------ ------------------------------ --------
IND_EMP EMP2 USABLE
IND_EMP EMP3 USABLE
IND_EMP EMP1 USABLE
See the USER_IND_PARTITIONS for the actual STATUS.