Dynavax Announces February 15 2005 Webcast of Fourth Quarter and Year-End 2004 Financial Results and Outlook

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Daybreak Oil and Gas Starts 5 Well Re-entry Program

Daybreak announced it has also acquired the necessary drilling permits for
their Tuscaloosa Sands project in Louisiana. Drilling depth has exceeded 1000 feet.

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streetevents. There are
four additional existing well bores within the Area of Mutual interest that
can be re-entered by Daybreak and its partners. In addition to normal State
workover permits, a Federal Aviation Agency (FAA) approval is also required.

Speleology, caving , potholing, spelunking and urban speleology are all common terms that refer to these activities.

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, LLC . Daybreak Oil and
Gas, Inc.

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The webcast is also being distributed over CCBN's
Investor Distribution Network to both institutional and individual investors. Our
clinical development programs are based on immunostimulatory sequences, or
ISS, which are short DNA sequences that enhance the ability of the immune
system to fight disease and control chronic inflammation.
Daybreak will have a 20% working interest subject to a 75% net revenue
interest.

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International callers can dial 617-801 -6888; conference identification number
12744711.

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BERKELEY, Calif. A drilling company has been
engaged and drilling is expected to commence on the first well within the next
few weeks .
Drilling on the Ginny, South project on the Gulf Coast of Texas has now
been underway for several days., undertakes no obligation to update any forward-looking statements
contained in this news release.

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com or by visiting any of the investor sites in
CCBN's Individual Investor Network.

Institutional investors can access the
call via CCBN's password-protected event management site, StreetEvents
(http://www. The Saxet
Deep field has previously been produced primarily as an oil field and some of
the gas sands have been neglected. The target depth
on this well is 9,550 feet .

'Take nothing but pictures, leave nothing but footprints, kill nothing but time.

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Robert Martin, President of Daybreak believes the Saxet re-entry project
to be a relatively low cost and high reward prospect.

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fulldisclosure.
Extensive infrastructure is in place to produce the natural gas expected
to be encountered.

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, Dynavax Technologies
(Nasdaq: DVAX) will announce it's 2004 fourth quarter and year-end financial
results on Tuesday February 15, 2005.dynavax.
An audio replay of the webcast will be available until February 22, 2005
by dialing 888-286-8010; conference identification number 12744711.

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m.
In addition to the initial interval to be re-completed , there are numerous
shallower zones up to 6100 feet that exhibit hydrocarbons on the well logs. Such forward-looking statements involve a
number of known and unknown risks, uncertainties and other factors which may
cause the actual results, performance or achievements of the Company to be
materially different from any future results, performance or achievements
expressed or implied by such forward -looking statements.

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SPOKANE, Wash.
Based upon a review of off-setting well logs and production records none of
these zones are believed to have previously produced gas or oil. The initial well already has pipeline in place.

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"Safe Harbor" Statement under Private Securities Litigation Reform Act of
1995: Certain statements contained in this News Release constitute
"forward-looking statements" within the meaning of the Private Securities
Litigation Reform Act of 1995.

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The surface casing has now been put in place
on the Curlee #1 well. Readers are cautioned
not to place undue reliance on these forward-looking statements, which speak
only for the date the statement was made .

Speleology is the exploration, study, conservation and enjoyment of caves and other underground structures .

Speleology is a potentially dangerous extreme sport.

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The project is located on a 320 acre lease within the
city limits of Corpus Christi, Texas.

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com .
Individual investors can listen to the call through CCBN's individual investor
center at http://www.com).

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It is highly recommended that you contact a local organisation to commence your participation in this fascinating recreation.

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The announcement will be followed by a live webcast at 5:00 p. EST of a
discussion by Dynavax Technologies management of fourth quarter and year-end
2004 financial results and 2005 outlook. of Dallas, Texas to participate in the re-entry of a well
in the Saxet Deep Field.

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ISS are being
developed in three initial indications: ragweed allergy immunotherapeutic,
currently in a Phase 2/3 clinical trial; a Hepatitis B vaccine , currently in a
Phase 2/3 clinical trial; and an asthma immunotherapeutic that has completed a
Phase 2 exploratory trial. The well, Socony Mobil 8 Weil "C" will
be re-entered to test a Frio sand at 7,022 feet. This zone exhibits
approximately 15 feet of hydrocarbon pay believed to be primarily natural gas. Investors should carefully consider
the preceding information as well as information contained in the news release
before making any investment in the shares of the company.

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The webcast can be accessed on Dynavax Technologies' website at
http://www.

About Dynavax
Dynavax Technologies Corporation discovers, develops, and intends to
commercialize innovative products to treat and prevent allergies, infectious
diseases, and chronic inflammatory diseases using versatile, proprietary
approaches that alter immune system responses in highly specific ways., Daybreak Oil and Gas,
Inc.

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, announced today they have signed a Letter of Intent ("LOI") with Oracle
Operating Co.

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Geological risk is
minimal and engineering risk is moderate.