Excessive LOBSEGMENT size and number of extents

Question

I am running a procedure to load a large number of records ( >1million). The records that I am loading has only a few columns including an XMLTYPE column containing the data from an XML file of size 10k. After reaching the 1 million mark, the size of the LOBSEGMENT associated with the XMLTYPE column is nearing 20GB and has nearly 600 extents! I understand that "auto" segment mgmt is the cause for the number of extents, but why is the LOBSEGMENT SO LARGE???
Thanks in advance for any suggestions or ideas...
Below are the tablespace settings:
BLOCK_SIZE : 8192
INITIAL_EXTENT : 65536
NEXT_EXTENT :
MIN_EXTENTS : 1
MAX_EXTENTS : 2147483645
PCT_INCREASE :
MIN_EXTLEN : 65536
STATUS : ONLINE
CONTENTS : PERMANENT
LOGGING : NOLOGGING
FORCE_LOGGING : NO
EXTENT_MANAGEMENT : LOCAL
ALLOCATION_TYPE : SYSTEM
PLUGGED_IN : NO
SEGMENT_SPACE_MANAGEMENT : AUTO
DEF_TAB_COMPRESSION : DISABLED
RETENTION : NOT APPLY
BIGFILE : NO

Answer 1

Yay, we're almost done :)
TEST.SQL>create table yjam.tablename (a number);
Table created.
TEST.SQL>create table cds.tablename (a number);
Table created.
TEST.SQL>SELECT EXTENTS, (bytes/1024/1024) MB FROM user_segments u
  2  WHERE segment_type = 'TABLE'
  3  AND u.segment_name = 'TABLENAME'
  4  /
no rows selected
TEST.SQL>l1
  1* SELECT EXTENTS, (bytes/1024/1024) MB FROM user_segments u
TEST.SQL>c:user:dba
  1* SELECT EXTENTS, (bytes/1024/1024) MB FROM dba_segments u
TEST.SQL>/
   EXTENTS         MB
         1         ,5
         1          5Yoann, in a kidding mood.