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- 10-K Annual report
- 4.1.1 Ninth Supplemental Indenture to Indenture Dated May 27, 2004
- 4.2.1 Ninth Supplemental Indenture to Indenture Dated As of August 2, 2004
- 4.3.1 Thirteenth Supplemental Indenture to Indenture Dated As of December 20, 2002
- 4.6.1 Twelfth Supplemental Indenture to Indenture Dated As of March 5, 2003
- 4.7.1 Tenth Supplemental Indenture to Indenture Dated As of November 26, 2003
- 4.8.1 Eigth Supplemental Indenture to Indenture Dated As of December 8, 2004
- 4.9.1 Sixth Supplemental Indenture to Indenture Dated As of April 19, 2005
- 4.10.1 Fifth Supplemental Indenture to Indenture Dated As of June 20, 2005
- 4.11.1 Sixth Supplemental Indenture to Indenture Dated As of August 16, 2005
- 4.12.1 Fifth Supplemental Indenture to Indenture Dated As of November 8, 2005
- 4.13.1 Fifth Supplemental Indenture to Indenture Dated As of November 8, 2005
- 4.14.1 Second Supplemental Indenture to Indenture Dated As of June 30, 2006
- 4.15.1 First Supplemental Indenture to Indenture Dated As of December 6, 2006
- 10.1.18 Chesapeake's Long Term Incentive Plan
- 10.2.5 Employment Agreement
- 10.5 Named Executive Officer Compensation
- 12 Ratios of Earnings to Fixed Charges
- 21 Subsidiaries
- 23.1 Consent of Pricewaterhouse Coopers, LLP
- 23.2 Consent of Netherland, Sewell & Associates, Inc.
- 23.3 Consent of Data & Consulting Services
- 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.
- 31.1 Section 302 CEO Certification
- 31.2 Section 302 CFO Certification
- 32.1 Section 906 CEO Certification
- 32.2 Section 906 CFO Certification
EXHIBIT 23.3
CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS
As independent oil and gas consultants, Data & Consulting Services Division of Schlumberger Technology Corporation hereby consents to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 33-84258, 33-89282, 33-88196, 333-07255, 333-27525, 333-30324, 333-46129, 333-30478, 333-52668, 333-52666, 333-67734, 333-67736, 333-67740, 333-109162, 333-118312, 333-118325, 333-126191 and 333-135949) and Form S-3 (File Nos. 333-116461, 333-125682, 333-130196, 333-132261, 333-132262, 333-138966 and 333-139053) of Chesapeake Energy Corporation of information from our reserve report dated February 26, 2007, entitled “Reserve and Economic Evaluation of Proved Reserves of Certain Chesapeake Energy Corporation Oil & Gas Properties As of 31 December 2006 “ and all references to our firm included in or made a part of the Chesapeake Energy Corporation Annual Report on Form 10-K to be filed with the Securities and Exchange Commission on or about February 28, 2007.
DATA & CONSULTING SERVICES
DIVISION OF SCHLUMBERGER TECHNOLOGY CORPORATION
/s/ Charles M. Boyer II | ||
Name: | Charles M. Boyer II, PG, CPG, CCG | |
Title: | Operations Manager | |
Pittsburg Consulting Services |
February 26, 2007