Exhibit 23.4
Data & Consulting Services Division of Schlumberger Technology Corporation |  |
Two Robinson Plaza, Suite 200
Pittsburgh, PA 15205
Tel: 412-787-5403
Fax: 412-787-2906
CONSENT OF DATA & CONSULTING SERVICES DIVISION OF SCHLUMBERGER
TECHNOLOGY CORPORATION
We, as independent petroleum engineers, hereby consent to the incorporation by reference in this Registration Statement on Form S-4 of our reserve reports relating to the proved reserves of gas and oil (including coal bed methane) of CONSOL Energy Inc. as of December 31, 2008, 2007 and 2006.
We further wish to advise that we are not employed on a contingent basis and that at the time of the preparation of our report, as well as at present, neither Data & Consulting Services Division of Schlumberger Technology Corporation nor any of its employees had, or now has, a substantial interest in CONSOL Energy Inc. or any of its subsidiaries, as a holder of its securities, promoter, underwriter, voting trustee, director, officer or employee.
DATA & CONSULTING SERVICES DIVISION
OF SCHLUMBERGER TECHNOLOGY
CORPORATION
| By: | /s/ Charles M. Boyer | |
| Charles M. Boyer II, PG | ||
| Advisor - Unconventional Reservoirs |
Date: August 4, 2011