| Registrant's
telephone number, including area code: (713) 328-1000 Securities
Registered Pursuant to Section 12(g) of the Act:
Common Stock, $.01 Par Value
Indicate by check mark if
the registrant is a well-known seasoned issuer, as defined in Rule 405 of the
Securities Act. YES [ ] NO
[X] Indicate by check mark if the registrant is not
required to file reports pursuant to Section 13 or Section 15(d) of the Exchange
Act. YES [ ] NO[X]
Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was required
to file such reports), and (2) has been subject to such filing requirements for
the past 90 days. YES [X] NO
[ ]
Indicate by check mark if disclosure of delinquent
filers pursuant to Item 405 of Regulation S-K is not contained herein,
and will not be contained, to the best of registrant’s knowledge,
in definitive proxy or information statements incorporated by reference
in Part III of this Form 10-K or any amendment to this Form 10-K.
[X]
Indicate
by check mark whether the registrant is a large accelerated filer, an accelerated
filer, or a non-accelerated filer. See definition of “accelerated filer and large
accelerated filer” in Rule 12b-2 of the Exchange Act (Check one): Large
accelerated filer [ ] Accelerated filer [X] Non-accelerated filer [ ]
Indicate by check mark whether the registrant is a shell company (as defined in
Rule 12b-2 of the Act). YES [ ] NO
[X]
At June 30, 2006, the aggregate market value
of the registrant’s Common Stock held by non-affiliates of the registrant
was approximately $656.7 million based on the closing price of such
stock on such date of $31.31.
At March 1, 2007, the number of shares outstanding
of the registrant’s Common Stock was 25,991,485.
DOCUMENTS
INCORPORATED BY REFERENCE
Portions of the definitive proxy statement
for the Registrant's 2006 Annual Meeting of Shareholders are incorporated
by reference in Part III of this Form 10-K. Such definitive proxy
statement will be filed with the Securities and Exchange Commission
not later than 120 days subsequent to December 31, 2006.
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