<PAGE>
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
--------------------------
SCHEDULE TO
(RULE 14D-100)
TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1)
OF THE SECURITIES EXCHANGE ACT OF 1934
--------------------------
CONVERGENT GROUP CORPORATION
(NAME OF SUBJECT COMPANY (ISSUER))
CONVERGENT ACQUISITION SUB, INC.
CONVERGENT HOLDING CORPORATION
SCHLUMBERGER TECHNOLOGY CORPORATION
SCHLUMBERGER LIMITED
(NAMES OF FILING PERSONS (OFFEROR))
--------------------------
COMMON STOCK, PAR VALUE $.001 PER SHARE
(TITLE OF CLASS OF SECURITIES)
21247V 10
(CUSIP NUMBER OF CLASS OF SECURITIES)
--------------------------
Jean Chevallier, President
Convergent Holding Corporation
c/o Schlumberger Technology Corp.
277 Park Avenue
New York, New York 10172
Telephone: (212) 350-9400
(Name, Address and Telephone Number of Person Authorized
to Receive Notices and Communications on Behalf of Filing Persons)
-----------------------------------------
Copies to:
Richard R. Plumridge, Esq. James L. Gunderson
Brobeck, Phleger & Harrison LLP General Counsel
370 Interlocken Boulevard, Suite 500 Schlumberger Limited
Broomfield, CO 80021 277 Park Avenue
(303) 410-2000 New York, New York 10172
(212) 350-9400
<PAGE>
(NAME, ADDRESS AND TELEPHONE NO. OF PERSON AUTHORIZED TO RECEIVE
NOTICES AND COMMUNICATIONS ON BEHALF OF FILING PERSONS)
--------------------------
CALCULATION OF FILING FEE
<TABLE>
<CAPTION>
TRANSACTION VALUATION* AMOUNT OF FILING FEE**
---------------------- ----------------------
<S> <C>
N/A(1) $0.00(1)
</TABLE>
(1) No filing fee is required pursuant to general instruction D of Schedule TO.
/ / Check the box if any part of the fee is offset as provided by Rule
0-11(a)(2) and identify the offsetting fee with which the offsetting
fee was previously paid. Identify the previous filing by registration
statement number, or the Form of Schedule and the date of its filing.
Amount Previously Paid: N/A Filing Paries: N/A
Form or Registration No.: N/A Date Filed: N/A
/ / Check the box if the filing relates solely to preliminary
communications made before the commencement of a tender offer.
Check the appropriate boxes below to designate any transactions to which
the statement relates:
/x/ third-party tender offer subject to Rule 14d-1.
/ / issuer tender offer subject to Rule 13e-4.
/x/ going-private transaction subject to Rule 13e-3.
/ / amendment to Schedule 13D under Rule 13d-2.
Check the following box if the filing is a final amendment reporting the
results of the tender offer: / /
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<PAGE>
For Immediate Release: Friday, November 17, 2000
SCHLUMBERGER EXTENDS TIME FOR CONVERGENT GROUP STOCKHOLDERS TO TENDER SHARES
NEW YORK, November 17, 2000-Schlumberger Limited (NYSE:SLB), announced today
that its wholly-owned subsidiary Schlumberger Technology Corporation
(Schlumberger) intends to commence a subsequent offering period beginning
Tuesday, November 28, 2000 at 12:01 a.m. New York City time, immediately after
the anticipated expiration of its initial offering period to purchase all
outstanding shares of common stock of Convergent Group Corporation
(NASDAQ:CVGP). The subsequent offering period will remain open until Thursday,
November 30, 2000, at 12:00 midnight New York City time, unless extended. The
original offering period is scheduled to expire at 12:00 midnight, New York City
time on Monday, November 27, 2000, at which time all such shares validly
tendered and not properly withdrawn will be accepted for payment.
Stockholders of Convergent Group Corporation (Convergent) wishing to accept the
Schlumberger offer should comply with the instructions in the Schlumberger offer
to purchase and letter of transmittal at the earliest practicable date. During
the subsequent offering period, Convergent stockholders who did not tender their
shares by the expiration of the initial offering period may tender their
Convergent shares by following the directions in the Schlumberger offer to
purchase and letter of transmittal.
As previously announced, Convergent and Schlumberger intend to effect a merger
pursuant to which Convergent will become an indirect wholly-owned subsidiary of
Schlumberger and all remaining Convergent stockholders (other than Schlumberger
and its affiliates) will have the right to receive the same $8 per share in cash
paid in the tender offer.
Holders of Convergent common stock are urged to read Schlumberger's offer to
purchase and the related letter of transmittal carefully in their entirety. The
offer to purchase and the related letter of transmittal contain important
information. The offer to purchase and the letter of transmittal are exhibits to
Schlumberger's Schedule TO filed with the Securities and Exchange Commission
which may be examined on the SEC's website http://www.sec.gov. Copies of the
offer to purchase and the letter of transmittal are available, for no charge,
from D. F. King & Co. Inc. 1 (800) 714-3305.
Schlumberger Limited is a global leader in technical services spanning the oil
and gas, utility, semiconductor testing, smart cards, and network and Internet
solutions industries. Schlumberger revenue was $8.4 billion in 1999. Additional
information is available from Realtime [www.slb.com], the Schlumberger corporate
website.
FOR FURTHER INFORMATION, CONTACT:
SCHLUMBERGER LIMITED
Rex Ross, Vice President Communications
Phone: (212) 350-9432
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