SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
DAWSON GEOPHYSICAL COMPANY
------------------------------------------------------
(Name of Issuer)
COMMON STOCK
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(Title of Class of Securities)
239359102
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(CUSIP NUMBER)
April 8, 2005
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(Date of event which requires filing of this statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
[ ] Rule 13d-1(b)
[X] Rule 13d-1(c)
[ ] Rule 13d-1(d)
The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
notes).
Page 1 of 16 Pages
CUSIP No. 239359102 13G Page 2 of 16 Pages
--------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO.
OF ABOVE PERSONS (ENTITIES ONLY)
Rubicon Master Fund
--------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
Cayman Islands
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NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4))
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **
OO
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** SEE INSTRUCTIONS BEFORE FILLING OUT!
CUSIP No. 239359102 13G Page 3 of 16 Pages
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(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO.
OF ABOVE PERSONS (ENTITIES ONLY)
Rubicon Fund Management Ltd.
--------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
Cayman Islands
--------------------------------------------------------------------------------
NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4)
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **
OO
--------------------------------------------------------------------------------
** SEE INSTRUCTIONS BEFORE FILLING OUT!
CUSIP No. 239359102 13G Page 4 of 16 Pages
--------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE
PERSONS (ENTITIES ONLY)
Rubicon Fund Management LLP
--------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
United Kingdom
--------------------------------------------------------------------------------
NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4)
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON ** OO
--------------------------------------------------------------------------------
** SEE INSTRUCTIONS BEFORE FILLING OUT!
CUSIP No. 239359102 13G Page 5 of 16 Pages
--------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO.
OF ABOVE PERSONS (ENTITIES ONLY)
Paul Anthony Brewer
--------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
United Kingdom
--------------------------------------------------------------------------------
NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4)
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **
IN
--------------------------------------------------------------------------------
CUSIP No. 239359102 13G Page 6 of 16 Pages
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(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO.
OF ABOVE PERSONS (ENTITIES ONLY)
Jeffrey Eugene Brummette
--------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
United States
--------------------------------------------------------------------------------
NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4)
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **
IN
--------------------------------------------------------------------------------
CUSIP No. 239359102 13G Page 7 of 16 Pages
--------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO.
OF ABOVE PERSONS (ENTITIES ONLY)
William Francis Callanan
--------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
United States
--------------------------------------------------------------------------------
NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4)
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **
IN
--------------------------------------------------------------------------------
CUSIP No. 239359102 13G Page 8 of 16 Pages
--------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO.
OF ABOVE PERSONS (ENTITIES ONLY)
Vilas Gadkari
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(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
United States
--------------------------------------------------------------------------------
NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4)
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **
IN
--------------------------------------------------------------------------------
CUSIP No. 239359102 13G Page 9 of 16 Pages
--------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO.
OF ABOVE PERSONS (ENTITIES ONLY)
Robert Michael Greenshields
--------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
United Kingdom
--------------------------------------------------------------------------------
NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4)
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **
IN
--------------------------------------------------------------------------------
CUSIP No. 239359102 13G Page 10 of 16 Pages
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(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO.
OF ABOVE PERSONS (ENTITIES ONLY)
Horace Joseph Leitch III
--------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
(a) [ ]
(b) [X]
--------------------------------------------------------------------------------
(3) SEC USE ONLY
--------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
United States
--------------------------------------------------------------------------------
NUMBER OF (5) SOLE VOTING POWER
-0-
SHARES
--------------------------------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
435,000 (see Item 4)
OWNED BY
--------------------------------------------------------------------------------
EACH (7) SOLE DISPOSITIVE POWER
-0-
REPORTING
--------------------------------------------------------------------------------
PERSON WITH (8) SHARED DISPOSITIVE POWER
435,000 (see Item 4)
--------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON
435,000 (see Item 4)
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT
IN ROW (9) EXCLUDES CERTAIN SHARES **
[ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED
BY AMOUNT IN ROW (9)
5.8%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **
IN
--------------------------------------------------------------------------------
CUSIP No. 239359102 13G Page 11 of 16 Pages
Item 1.
(a) Name of Issuer
Dawson Geophysical Company, a Texas corporation (the "Company").
(b) Address of Issuer's Principal Executive Offices:
508 West Wall, Suite 800
Midland, Texas 79701
Item 2(a). Name of Person Filing
This statement is filed by (i) Rubicon Master Fund; (ii) Rubicon
Fund Management Ltd., with respect to shares beneficially owned by Rubicon
Master Fund; (iii) Rubicon Fund Management LLP, with respect to shares
beneficially owned by Rubicon Master Fund; (iv) Paul Anthony Brewer, with
respect to shares beneficially owned by Rubicon Master Fund; (v) Jeffrey Eugene
Brummette, with respect to shares beneficially owned by Rubicon Master Fund;
(vi) William Francis Callanan with respect to shares beneficially owned by
Rubicon Master Fund; (vii) Vilas Gadkari with respect to shares beneficially
owned by Rubicon Master Fund; (viii) Robert Michael Greenshields, with respect
to shares beneficially owned by Rubicon Master Fund; and (ix) Horace Joseph
Leitch III, with respect to shares beneficially owned by Rubicon Master Fund.
Item 2(b). Address of Principal Business Office
The address of (i) Rubicon Master Fund is P.O. Box 309, Ugland
House, George Town, Cayman Islands, (ii) Rubicon Fund Management Ltd. is P.O.
Box 309, Ugland House, George Town, Cayman Islands, (iii) Rubicon Fund
Management LLP is 103 Mount St., London W1K2TJ, United Kingdom and (iv) each of
the individuals is 103 Mount St., London W1K2TJ, United Kingdom.
Item 2(c) Citizenship
Rubicon Master Fund and Rubicon Fund Management Ltd. are companies
organized under the laws of the Cayman Islands. Rubicon Fund Management LLP is a
Limited Liability Partnership organized under the laws of the United Kingdom.
Jeffrey Eugene Brummette, William Francis Callanan, Vilas Gadkari and Horace
Joseph Leitch III are citizens of the United States. Paul Anthony Brewer and
Robert Michael Greenshields are citizens of the United Kingdom.
(d) Title of Class of Securities
Common Stock, $.33-1/3 par value ("Common Stock")
(e) CUSIP Number 239359102
Item 3. Not applicable
Item 4. Ownership
(a) Amount Beneficially Owned
The percentages used herein are calculated based upon the 7,442,794
shares of Common Stock issued and outstanding as of March 1, 2005 as reported in
the Company's prospectus (File No: 33-121236) filed pursuant to Rule 424(b)(4)
with the Securities and Exchange Commission on March 1, 2005.
CUSIP No. 239359102 13G Page 12 of 16 Pages
As of the close of business on April 18, 2005
1. Rubicon Master Fund
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
2. Rubicon Fund Management Ltd.
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
3. Rubicon Fund Management LLP
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
4. Paul Anthony Brewer
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
5. Jeffrey Eugene Brummette
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
6. William Francis Callanan
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
CUSIP No. 239359102 13G Page 13 of 16 Pages
7. Vilas Gadkari
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
8. Robert Michael Greenshields
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
9. Horace Joseph Leitch III
(a) Amount beneficially owned: 435,000
(b) Percent of class: 5.8%
(c)
(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote 435,000
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 435,000
Rubicon Fund Management Ltd., Rubicon Fund Management LLP, Paul Anthony
Brewer, Jeffrey Eugene Brummette, William Francis Callanan, Vilas Gadkari,
Robert Michael Greenshields and Horace Joseph Leitch III, own directly no shares
of Common Stock. Pursuant to Investment Agreements, each of Rubicon Fund
Management Ltd., and Rubicon Fund Management LLP share all investment and voting
power with respect to the Securities held by Rubicon Master Fund. By reason of
the provisions of Rule 13D-3 of the Securities Exchange Act of 1934, as amended,
each of Rubicon Fund Management Ltd., Rubicon Fund Management LLP, Paul Anthony
Brewer, Jeffrey Eugene Brummette, William Francis Callanan, Vilas Gadkari,
Robert Michael Greenshields and Horace Joseph Leitch III may be deemed to own
beneficially 435,000 shares of Common Stock (constituting approximately 5.8% of
Common Stock outstanding). Each of Rubicon Fund Management Ltd., Rubicon Fund
Management LLP, Paul Anthony Brewer, Jeffrey Eugene Brummette, William Francis
Callanan, Vilas Gadkari, Robert Michael Greenshields and Horace Joseph Leitch
III disclaim beneficial ownership of any securities covered by this statement.
Item 5. Ownership of Five Percent or Less of a Class
Not applicable.
Item 6. Ownership of More than Five Percent on Behalf of Another Person.
Not applicable.
Item 7. Identification and Classification of the Subsidiary Which Acquired
the Security Being Reported on By the Parent Holding Company
Not applicable.
CUSIP No. 239359102 13G Page 14 of 16 Pages
Item 8. Identification and Classification of Members of the Group
This statement is filed by:
Not Applicable
Item 9. Notice of Dissolution of Group
Not applicable
Item 10. Certification
By signing below each of the undersigned certifies that, to the best of its
knowledge and belief, the securities referred to above were not acquired and are
not held for the purpose of or with the effect of changing or influencing the
control of the issuer of the securities and were not acquired and are not held
in connection with or as a participant in any transaction having that purpose or
effect.
CUSIP No. 239359102 13G Page 15 of 16 Pages
SIGNATURE
After reasonable inquiry and to the best of its knowledge and belief, each of
the undersigned certifies that the information with respect to it set forth in
this statement is true, complete, and correct.
Dated: April 19, 2005
RUBICON MASTER FUND
By: /s/ DAVID DEROSA
----------------
Name: David DeRosa
Title: Authorized Person
RUBICON FUND MANAGEMENT LTD.
By: /s/ DAVID DEROSA
----------------
Name: David DeRosa
Title: Authorized Person
RUBICON FUND MANAGEMENT LLP
By: /s/ HORACE JOSEPH LEITCH III
----------------------------
Name: Horace Joseph Leitch III
Title: Authorized Person
PAUL ANTHONY BREWER
By: /s/ PAUL ANTHONY BREWER
-----------------------
Name: Paul Anthony Brewer
JEFFREY EUGENE BRUMMETTE
By: /s/ JEFFREY EUGENE BRUMMETTE
----------------------------
Name: Jeffrey Eugene Brummette
WILLIAM FRANCIS CALLANAN
By: /s/ WILLIAM FRANCIS CALLANAN
----------------------------
Name: William Francis Callanan
CUSIP No. 239359102 13G Page 16 of 16 Pages
VILAS GADKARI
By: /s/ VILAS GADKARI
-----------------
Name: Vilas Gadkari
ROBERT MICHAEL GREENSHIELDS
By: /s/ ROBERT MICHAEL GREENSHIELDS
-------------------------------
Name: Robert Michael Greenshields
HORACE JOSEPH LEITCH III
By: /s/ HORACE JOSEPH LEITCH III
----------------------------
Name: Horace Joseph Leitch III