Federal Communications Commission
Washington, D.C. 20554
DA 10-1471
August 10, 2010
Mr. Robert J. Miller
Gardere Wynne Sewell LLP
1601 Elm Street, Suite 3000
Dallas, TX 75201
Re:    Schlumberger Technology Corporation, Call Sign E100026, IBFS File No.:  
SES-LIC-20100203-00146
Dear Mr. Miller:
On February 3, 2010, Schlumberger Technology Corporation (Schlumberger) filed the 
above-captioned application seeking authority to operate C-Band1 and extended C-band2
Earth Stations on-board Vessels (ESVs).  Pursuant to Section 25.112(a)(1) of the 
Commission’s rules, 47 C.F.R. §25.112(a)(1), we dismiss this application without 
prejudice to refiling.3
Schlumberger seeks to operate on the 3650-3700 MHz band for ESV downlink operation. 
The U.S. Table of Frequency Allocations, Section 2.106 of the Commission’s rules,4
however, has frozen new applications for authority to operate in this frequency band. In 
addition, Section 25.211 of the Commission’s rules5 does not include an allocation for 
ESV use of this band.  Schlumberger also requests to operate on 5850-5925 MHz and
3600-3650 MHz bands for ESV uplink and downlink operations.  Again, Section 25.211 
of the Commission’s rules does not include an allocation for ESV use of these bands. We 
dismiss Schlumberger’s request for failure to include a waiver request of the 
Commission’s rules to permit non-conforming uses.
  
1 3700-4200 and 5925-6425 MHz bands.
2 3600-3700 and 5850-5925 MHz bands.
3 If Telesat refiles an application identical to the one dismissed, with the exception of supplying the
corrected information, it need not pay an application fee. See 47 C.F.R. § 1.1109(d).
4 Footnote NG169 of 47 C.F.R. § 2.106.
5 47 C.F.R. § 25.211.
Federal Communications Commission                  DA 10-1471 
2
In the event that Schlumberger refiles its license application to operate in the 3600-3700 
and 5850-5925 MHz bands, it should include an adequately supported request for waiver 
of all applicable Commission rules. In this case, such a request should include, among 
other things, an explanation as to any unique or compelling circumstances that warrant 
the use of frequency bands that are not allocated for ESV use. In addition, any grant of a 
waiver would be premised on completion of coordination with other parties operating 
communications systems in compliance with the Table of Frequency Allocations, 47 
C.F.R. § 2.106. 
Accordingly, pursuant to Section 25.112(a)(1) of the Commission’s rules, 47 C.F.R. 
§25.112(a)(1), and Section 0.261 of the Commission’s rules on delegations of authority, 
47 C.F.R. §0.261, we dismiss this application without prejudice to refiling.
Sincerely,
Kathyrn Medley
Chief, Satellite Engineering Branch
Satellite Division
International Bureau
CC: Mr. Demetrios Stellas
Schlumberger Technology Corporation
5599 San Felipe
Houston, TX 77056