K-1 INFORMATION

Duncan Energy Partners L.P. will begin mailing the K-1's for 2007 on Monday, February 18, 2008. For assistance regarding your K-1's, you may call the K-1 Partner Relations staff toll free at (866) 709-8273, between 8:00 AM and 5:00 PM Central Standard Time. You may also forward your request by fax to (972) 248-5395.

The K-1's will also be available via the internet beginning February 14 and may be accessed by clicking on the link below.

www.taxpackagesupport.com/duncan