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- S-4 Registration of securities issued in business combination transactions
- 4.3 First Supplemental Indenture
- 4.4 Second Supplemental Indenture
- 5.1 Opinion of Vinson & Elkins L.L.P.
- 5.2 Opinion of Commercial Law Group, P.C.
- 23.1 Consent of Pricewaterhousecoopers LLP
- 23.2 Consent of Ernst & Young LLP
- 23.3 Consent of Netherland, Sewell & Associates, Inc.
- 23.4 Consent of Lee Keeling and Associates, Inc.
- 23.5 Consent of Ryder Scott Company, L.P.
- 23.6 Consent of Laroche Petroleum Consultants, LTD.
- 23.7 Consent of H.J. Gruy and Associates, Inc.
- 23.8 Consent of Miller and Lents, LTD.
- 23.9 Consent of Schlumberger Data and Consulting Services
- 25.1 Statement of Eligibility on Form T-1
- 9 Apr 18 Registration of securities issued in business combination transactions (amended)
- 23 Feb 18 Registration of securities issued in business combination transactions
- 21 Apr 06 Registration of securities issued in business combination transactions
- 7 Mar 06 Registration of securities issued in business combination transactions
- 20 Sep 05 Registration of securities issued in business combination transactions
- 8 Jul 05 Registration of securities issued in business combination transactions
- 27 May 05 Registration of securities issued in business combination transactions
Exhibit 23.9
[SCHLUMBERGER DATA AND CONSULTING SERVICES LETTERHEAD]
CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS
As independent oil and gas consultants, Schlumberger Data and Consulting Services hereby consents to the incorporation by reference in the Registration Statement on Form S-4 of Chesapeake Energy Corporation to be filed on or about February 27, 2006, of information from our reserve report with respect to the oil and gas reserves of Columbia Energy Resources, LLC dated February 16 and entitled “Reserve and Economic Audit of Proved Reserves of Certain Columbia Natural Resources, LLC Oil & Gas Properties As of December 31, 2004.” We also consent to the reference to us under the heading “Experts” in such Registration Statement.
SCHLUMBERGER DATA & CONSULTING SERVICES | ||
By: | /S/ JOSEPH H. FRANTZ, JR. P. E. | |
Name: | Joseph H. Frantz, Jr. P. E. | |
Title: | Consulting and Solutions Services Operations Manager U.S. Land East-North |
February 27, 2006