USER_TAB_PRIVS

SQL> DESC USER_TAB_PRIVS

 Name                                     Null?                Type

 ---------------------------------- --------------- ----------------------------
 GRANTEE                           NOT NULL     VARCHAR2(30)
 OWNER                               NOT NULL     VARCHAR2(30)
 TABLE_NAME                   NOT NULL     VARCHAR2(30)
 GRANTOR                           NOT NULL     VARCHAR2(30)
 PRIVILEGE                          NOT NULL     VARCHAR2(40)
 GRANTABLE                                               VARCHAR2(3)
 HIERARCHY                                                 VARCHAR2(3)