Attached please find (i) a clean copy of the ECT Wind River, L.L.C. Pledge 
Agreement and (ii) a copy of the ECT Wind River, L.L.C. Pledge Agreement 
blacklined to show changes from the Form of Pledge Agreement attached as an 
exhibit to the Credit Agreement.

Copies of the above were also forwarded to Ranabir Dutt.

Please feel free to call me at (713) 220-4427 if you have any questions or if 
I can be of further assistance.

S.B.


 - PledgeAg.DOC
 - Blacklin.DOC