Trading Symbol:
"TESOF" on NASDAQ
"TEO" on TSX

CALGARY , March 31 - On March 30, 2005 Tesco
Corporation issued the above-referenced press release which contained errors
in the "Segment Information".
Tesco Corporation is a global leader in the design, manufacture and
service of technology based solutions for the upstream energy industry.

Each country has its own chapter and covers the following subjects:

- Key Statistics
- Market Overview
- Regulatory Environment
- Major Players
- Infrastructure
- Fixed network Services
- Data
- Internet
- Broadband
- Convergence
- Mobile Communications
- Broadcasting

For more information visit
http: //www. "Ron is a perfect match for TTI
both professionally and personally.ttiinc.com or contact
Cathy Walensky, 817-740-9000, cathy.

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com/reports/c14014

Laura Wood
Senior Manager
Research and Markets
press@researchandmarkets."
Russell will report directly to Paul Andrews, President and CEO."

About TTI
TTI, Inc.

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These risks
include, but are not limited to: operational risks; potential delays or
changes in plans with respect to customers ' exploration or development
projects or capital expenditures; the uncertainty of estimates and projections
relating to levels of rental activities; uncertainty of estimates and
projections of costs and expenses; risks in conducting foreign operations such
as political and fiscal instability, exchange rate fluctuations, and
international taxation; uncertainty and risks in technical results and
performance of technology; restructuring of operations; and other
uncertainties., the world's leading
passive and connector specialist in the electronics industry, has announced
the hiring of Ron Russell as the new Senior Vice President of Global Human
Relations.

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These statements are based on
current expectations that involve a number of risks and uncertainties, which
could cause actual results to differ from those anticipated.
The diversity among the countries in this group is immense, ranging from
South Africa which has the continent's most advanced telecommunications
networks and markets , to countries which have only recently emerged from civil
war like Angola and Mozambique and which are consequently at a very low level
of development, even though their mobile markets are growing very rapidly. Additional duties include overseeing the
hiring of senior level positions globally . We welcome Ron to the TTI
family. For more information about TTI, visit http://www.

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com/cgi-bin /prnh/20040820/RESEARCH )
This report examines the Telecoms, Mobile and Broadband markets in Angola ,
Botswana, Lesotho, Madagascar, Malawi, Mauritius, Mozambique, Namibia, South
Africa, Swaziland , Zambia, and Zimbabwe.
Russell has more than 30 years of experience in various top management
positions working for some of North America's largest corporations, including
Vice President, Senior Human Resources Officer for Citicorp Global Technology,
Inc.

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Russell said, "My goal is to work
with the corporate senior management team to meet and exceed the established
objectives of the company, and to craft a succession plan that will keep TTI
viable now and in the future.

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and Director of Human Resources for Diamond Shamrock Corporation.

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researchandmarkets.walensky@ttiinc.

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Correction - Tesco Corporation Reports Results for Fourth Quarter and Full Year 2004

The
Corporation's mandate is to change the way people drill wells by delivering
safer and more efficient solutions that add real value by reducing the costs
of drilling for and producing oil and gas.

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FORT WORTH, Texas , TTI, Inc. Andrews
remarked on Russell's recent appointment.com .

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These statements include, among others,
statements regarding expectations of future revenues, activities, capital
expenditures and earnings and technical results.
Russell is no stranger to TTI.

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In
between are relatively wealthy nations like Botswana and Namibia which benefit
from their close ties with South Africa, and the island nation of Mauritius,
sporting some of the best telecoms indicators of the continent.
He will have responsibility for all human resource related activities in
North America, Asia and Europe. He is familiar with the culture of TTI
through his work with the Management Advisory Committee and brings a vast
amount of corporate expertise to this position. is the world's leading passive and connector specialist with
offices in 57 major markets in the United States, Canada, Mexico, Europe and
Asia.

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com
Fax: +353 1 4100 980

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Research and Markets: Up-and-Coming Opportunities Investigated in Southern Africa's Telecom Mobile and Broadband Markets

newscom.

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The revised "Segment Information" schedule that
is a part of this press release supercedes the prior schedule.

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FORWARD-LOOKING STATEMENTS

This presentation contains statements that may constitute
"forward-looking statements" within the meaning of the US Private Securities
Litigation Reform Act of 1995. Most recently, he served as a consultant for
18 months on the TTI Management Advisory Committee.

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Tesco Corporation
SEGMENT INFORMATION
Three months and years ended December 31, 2004 and 2003
(Thousands of Canadian Dollars)
Unaudited
-------------------------------------------------------------------------

Three
months to: December 31, 2004 December 31, 2003
----------------------------- -------------------------------
Operations:
Deprec- Deprec-
Revenues iation Revenues iation
--------------- and Earnings --------------- and Earnings
Third amorti- before Third amorti- before
Internal party zation taxes Internal party zation taxes
-------------- -- -------- ------- --------------- ------- -------

Products 7,945 11,418 676 2,289 5,171 7,706 614 (611)
Services 2,016 34,128 3,777 2,491 790 32,181 3 ,718 4,360
---------------- -------- ------- --------------- ------- -------
9,961 45,546 4,453 4,780 5,961 39,887 4,332 3,749
----------- ----- ---------------
---------------- ------------ ---

Intersegment
eliminations (227) 1,183 (201) (158)
Product
development
expense - (491) 105 (1,803)
Restructuring
and other
exceptional
items - (4,851) - (7,456)
Corporate items 458 (5,694) 455 (4,740)
-------- ------- ------- -------
4,684 (5,073) 4,691 (10 ,408)
-------- ------- ------- -------
-------- ------- ------- -------

Geographic:
Revenues Revenues
---------- ----------

Canada 6,416 7,040
United States 24,887 21,173
Mexico 1,766 3,457
South America 3,502 2,429
South East Asia 4,283 2,821
Europe, Africa
and Middle East 4,692 2,967
---------- ----------
45,546 39,887
---------- ----------
---------- ----------

Years ended: December 31, 2004 December 31, 2003
-------------------------- --- -------------------------------
Operations:
Deprec- Deprec-
Revenues iation Revenues iation
--------------- and Earnings --------------- and Earnings
Third amorti- before Third amorti- before
Internal party zation taxes Internal party zation taxes
---------------- -------- ------- --------------- - ------ -------

Products 27,138 47,052 2,905 1,967 39,245 57,841 1,592 8,763
Services 3,892 132,009 14,876 20,372 5,389 127,822 14,169 13,009
-------- -------- -------- ------- --------------- ------- -------
31,030 179,061 17,781 22 ,339 44,634 185,663 15,761 21,772

Intersegment
eliminations (799 ) 1,017 (1,272) 1,055
Product
development
expense - (3,882) 567 (10,460)
Restructuring
and other
exceptional
items - (4,851) - (28,080)
Corporate items 1,923 (19,226) 1,806 (19,514)
-------- ------- ------- -------
18,905 (4,603) 16,862 (35,227)
-------- ------- ------- -------
-------- ------- ------- ------ -

Geographic:
Revenues Revenues
---------- ----------

Canada 21,423 31,396
United States 92,224 83,230
Mexico 9,095 29,250
South America 14,137 9 ,007
South East Asia 25,570 19,242
Europe, Africa
and Middle East 16,612 13,538
---------- ----------
179,061 185,663
---------- ----------
---------- ------- ---

DUBLIN, Ireland, Africa Telecoms, Mobile and Broadband Southern and Indian Ocean
Region to their offering.
(Logo: http://www.