Exhibit 23.3
[SCHLUMBERGER DATA AND CONSULTING SERVICES LETTERHEAD]
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 Statement on Form S-3 of Chesapeake Energy Corporation to be filed on or about May 19, 2008, of information from our reserve report dated 22 February 2008, entitled “Reserve and Economic Evaluation of Proved Reserves of Certain Chesapeake Energy Corporation Oil and Gas Properties as of 31 December 2007.” We also consent to the reference to us under the heading “Experts” in such Registration Statement.
DATA & CONSULTING SERVICES DIVISION OF SCHLUMBERGER TECHNOLOGY CORPORATION | ||
| By: | /s/ CHARLES M. BOYER II, P.G., C.P.G., C.C.G. | |
Charles M. Boyer II, P.G., C.P.G., C.C.G. Operations Manager, Pittsburgh Consulting Services | ||
May 15, 2008