Confidential Treatment is requested by Warren Resources, Inc. pursuant to 17 C.F.R. 200.83
FOIA Confidential Treatment Requested
WILLIAMSON PETROLEUM CONSULTANTS, INC.
TEXAS REGISTERED ENGINEERING FIRM F-81
303 VETERANS AIRPARK LANE, SUITE 1100
MIDLAND, TEXAS 79705
PHONE: 432-685-6100
FAX: 432-685-3909
E-MAIL: WPC@WPC-INC.COM
September 3, 2009
Securities and Exchange Commission
Division of Corporation Finance
100 F Street, N.E.
Washington, D.C. 20549-7010
Attention Mr. Ronald Winfrey
Gentlemen:
Subject: | | WTU Review — Additional Information |
| | Williamson Project 9.9320 |
[Note- The information redacted from this letter including the information in the attachments has been provided as confidential supplemental information in a separate letter addressed to Mr. Ronald Winfrey dated even date herewith requesting confidential treatment of such information pursuant to Rule 83 (17 C.F.R. 200.83) and applicable regulations of the Commission Act of 1934 and Rule 101(c)(2) of Regulation S-T (the “Confidential Submission”).]
As requested during our telephone conversation on September 2, 2009, enclosed is the following information which Warren Resources, Inc. has provided us for the WTU Upper Terminal waterflood:
[redacted]
If you need any additional information, I can be reached at 432-685-6110.
Yours very truly,
WILLIAMSON PETROLEUM CONSULTANTS, INC.
/s/ Roy C. Williamson, Jr. | 
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Roy C. Williamson, Jr. , P.E. |
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RCW/RCH/thb |
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Attachments |
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| Williamson Petroleum Consultants, Inc. F-81 |
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