Hydril Announces Second Quarter 2006 Earnings Release Date and Conference Call Information

Hydril (Nasdaq:HYDL) plans to report earnings for the
second quarter ended June 30, 2006 after the market closes on Tuesday,
July 25, 2006. The company will conduct a teleconference at 8:30 a.m.
EDT (7:30 a.m. CDT; 5:30 a.m. PDT) on Wednesday, July 26, 2006 to
discuss the financial results. Individuals who wish to participate in
the call should dial [phone] (domestic) or [phone]
(international) and reference passcode # 7611130 approximately five to
ten minutes prior to the scheduled start time of the call.
   In addition, the conference call will be simulcast through a
listen only webcast over the Internet and can be accessed by logging
onto the company's Web address at www.hydril.com and proceeding to the
"Earnings Conference Call" icon on the homepage.
   The replay, # 7611130, of the call will be available by dialing
[phone] (domestic) or [phone] (international). An
archive of the webcast will be available through the Investor
Relations page at www.hydril.com until midnight eastern time on
Wednesday, August 9, 2006. A transcript of the call will be available
on Monday, July 31, at www.hydril.com and can be accessed from the
Investor Relations page by clicking on "Transcripts and
Reconciliations".
   Hydril, headquartered in Houston, Texas, is engaged worldwide in
engineering, manufacturing and marketing premium connections and
pressure control products used for oil and gas drilling and
production.