4 GREENWAY PLAZA, HOUSTON, TX
Material Contracts, Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Material Modifications to Rights of Security Holders, Change in Company Ownership, Changes in Board, Management or Compensation, Amendments to Articles of Incorporation or Bylaws
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
Material Contracts, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events
Reg. FD
Material Contracts, End of Material Contract, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement, Other Events
FY 2008
Q3
Q2
Q1
FY 2007
S-3ASR
Prospectus filed pursuant to Rule 424(b)(3)
Prospectus Filed Pursuant to Rule 425
Effectiveness Notice
S-4/A
Additional Proxy Materials
Definitive Proxy Statement
PRE 14A
Statement of Changes in Beneficial Ownership
Amended Schedule 13D - Ownership Report
Notification Filed by a National Security Exchange
Initial Statement of Beneficial Ownership
Amended Schedule 13G - Ownership Report
Prospectus filed pursuant to Rule 424(b)(7)
Submission Upload
Amended Tender Offer Statement by Issuer
Free Writing Prospectus