Initial extent inconsistency

Hi,
I do not understand a thing about my database when I create OLTP compressed partitioned tables. Here is the example:

SQL> select * from v$version;

BANNER
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Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE    11.2.0.2.0      Production
TNS for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production

SQL> CREATE TABLE LIZECHRI.TEST_FACT
  2  (
  3    C1  DATE,
  4    C2  DATE,
  5    C3  VARCHAR2(25 BYTE),
  6    C4  VARCHAR2(25 BYTE),
  7    C5  VARCHAR2(10 BYTE),
  8    C6  VARCHAR2(10 BYTE),
  9    C7  NUMBER(12),
 10    C8  NUMBER(12),
 11    DAT_DT  DATE                   NOT NULL,
 12    C10 VARCHAR2(3 BYTE)       NOT NULL,
 13    C11 VARCHAR2(3 BYTE)       NOT NULL,
 14    C12 VARCHAR2(10 BYTE)      NOT NULL,