Copano Energy, L.L.C. (CPNO) DEFA14A Additional proxy soliciting materials

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )
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Filed by a Party other than the Registrant  o
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o	Preliminary Proxy Statement
o	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o	Definitive Proxy Statement
ý	Definitive Additional Materials
o	Soliciting Material Pursuant to §240.14a-12
Copano Energy, L.L.C.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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2727 Allen Parkway, Suite 1200

Houston, Texas 77019

(713) 621-9547  FAX (713) 621-9545

October 11, 2005

Dear Unitholder:

Proxy material for the October 27, 2005 Special Meeting of Unitholders of Copano Energy, L.L.C. was mailed to you on September 22, 2005. According to our records, your proxy card for this meeting has not yet been received. Regardless of the number of units you own, it is important that they are represented and voted at the meeting.

Since the time is short, we urge you to sign, date and mail the enclosed proxy in the return envelope promptly. Your interest and participation in the affairs of the Company is greatly appreciated.

Thank you for your continued support.

Very truly yours,

John R. Eckel, Jr.

Chairman and

Chief Executive Officer

IF YOU HAVE RECENTLY MAILED YOUR PROXY, PLEASE ACCEPT OUR
THANKS AND DISREGARD THIS REQUEST.