Maverick Tube Corporation Announces the Expansion of Its Oil Country Tubular Goods (OCTG) Finishing Facilities at Prudential St

Maverick Tube Corporation (NYSE:MVK) announced today
that its wholly owned subsidiary, Prudential Steel Ltd. ("Prudential")
will expand its oil country tubular goods (OCTG) finishing facilities
in Calgary, Alberta, Canada in 2006. The new American Petroleum
Institute (API) threading line, scheduled to be completed in the
summer of 2006, is in addition to the two existing API threading
lines, and a premium threading line which was commissioned in 2002.
API connections are used in most conventional wells while premium
connections are used in deeper wells and more challenging
applications. The expansion of the threading lines is the last phase
of a US$10.4 million capital expansion plan for 2005 and 2006. In
August 2005, Prudential completed the first phase of the plan which
included a US$7.3 million expenditure to increase the pipe making
capacity of its Calgary operation.
   Bob Lee, President of Prudential, said, "Demand for OCTG has
increased significantly over the last year and the outlook for 2006 is
very positive. With the expansion of our pipe making capacity last
year and the planned threading capacity increase this year, Prudential
will be well positioned to meet our customer's increasing needs for
OCTG." Mr. Lee added, "Prudential has always practiced continuous
improvement and while these two projects result in manufacturing
synergies, this is really all about improving customer service and
providing a reliable source of Canadian - produced products."
   Bob Jaggard, Prudential's Vice President - Sales, said, "The
Canadian oilpatch has set drilling records in each of the last three
years and we expect 2006 to be very busy as well. The recent sharp
upswing in drilling activity has made it challenging for customers to
get rigs, pipe and other supplies for well completions this winter.
With our expansion, we'll be well positioned to meet future growth in
OCTG demand in 2006."

   Prudential operates three pipe mills in Calgary with a total
annual capacity of about 500,000 tons and an outside diameter range of
2 3/8" to 12". Prudential has been a leading supplier of OCTG and line
pipe to the Canadian energy industry since 1966.

   Maverick Tube Corporation is a St. Louis, Missouri based
manufacturer of tubular products in the energy industry for
exploration, production, and transmission, as well as industrial
tubing products (steel electrical conduit, standard pipe, pipe piling,
and mechanical tubing) used in various applications.

   This news release may contain forward-looking information that is
based on assumptions that are subject to numerous business risks, many
of which are beyond the control of the Company. There is no assurance
that such assumptions will prove to be accurate. Actual results may
differ from these forward-looking statements due to numerous factors,
including those described under "Risk Factors" and elsewhere in
Maverick's Form 10-K for its year ended December 31, 2004.