<PAGE> 1
-------------------
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
-------------------
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 8)
DAWSON GEOPHYSICAL COMPANY
(Name of Issuer)
-------------------
COMMON STOCK, $.33 1/3 PAR VALUE
(Title of Class of Securities)
-------------------
239359 10 2
(CUSIP Number)
MR. RICHARD E. BLOHM, JR.
1415 LOUISIANA STREET
HOUSTON, TEXAS 77002
(713) 739-6500
(Name, Address and Telephone Number
of Person Authorized to Receive Notices
and Communications)
with a copy to:
MR. JOHN R. BRANTLEY
BRACEWELL & PATTERSON, L.L.P.
711 LOUISIANA STREET, SUITE 2900
HOUSTON, TEXAS 77002
713-223-2900
-------------------
DECEMBER 30, 1999
(Date of Event which Requires Filing of this Statement)
If the filing person has previously filed a statement on Schedule 13G to report
this acquisition that is the subject of this Schedule 13D, and is filing this
Schedule because of Rule 13d-1(e), Rule 13d-1(f) or Rule 13d-1(g), check the
following box: [ ]
The information required on 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.
-------------------
Page 1 of 7 Pages
<PAGE> 2
Page 2 of 7 Pages
CUSIP NO.: 239359 10 2
AMENDMENT NO. 8 TO SCHEDULE 13D
================================================================================
1 NAME OF REPORTING PERSON; S.S. OR IRS IDENTIFICATION NUMBER
Pebbleton Corporation N.V.
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) [ ]
(b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS
WC
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEM 2(d) OR 2(e)
[ ]
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
Netherlands Antilles
- --------------------------------------------------------------------------------
7 Sole Voting Power
0
- --------------------------------------------------------------------------------
8 SHARED VOTING POWER
978,000
- --------------------------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
0
- --------------------------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
978,000
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
978,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
[X]
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
18.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON
CO
================================================================================
<PAGE> 3
Page 3 of 7 Pages
CUSIP NO.:239359 10 2
AMENDMENT NO. 8 TO SCHEDULE 13D
================================================================================
1 NAME OF REPORTING PERSON; S.S. OR IRS IDENTIFICATION NUMBER
Issam M. Fares
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) [ ]
(b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS
AF
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEM 2(d) OR 2(e)
[ ]
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
Lebanese
- --------------------------------------------------------------------------------
7 Sole Voting Power
0
- --------------------------------------------------------------------------------
8 SHARED VOTING POWER
978,000
- --------------------------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
0
- --------------------------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
978,000
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
978,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
[X]
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
18.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON
IN
================================================================================
<PAGE> 4
Page 4 of 7 Pages
SCHEDULE 13D
AMENDMENT NO. 8
Unless otherwise defined or indicated in this Amendment No. 8,
capitalized terms which are used herein and are defined in the Schedule 13D
filed October 16, 1998, as heretofore amended ("Original 13D"), shall have the
meanings assigned to them in the Original 13D. All information herein with
respect to Dawson Geophysical Company, a Texas corporation, is to the best
knowledge and belief of the Reporting Persons, as defined herein.
ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.
(a) As set forth herein, Pebbleton owns 978,000 shares of Common Stock
of the Issuer, which represents approximately 18.1% of the Common Stock
outstanding as of November 26, 1999, as reported by the Issuer in its Proxy
Statement filed with the Securities and Exchange Commission ("Commission") on
December 8, 1999.
(b) Mr. Fares may be deemed to beneficially own and thereby share
voting and dispositive power over the shares of Common Stock described herein
which are held by Pebbleton. See Item 2 of the Original 13D.
(c) Set forth in Exhibit A to this Amendment No. 8 is a list of all
transactions effected in the Issuer's Common Stock by Pebbleton within the past
sixty days, including (i) the identity of the person effecting transactions in
the Issuer's Common Stock; (ii) the date of the transaction; (iii) the amount of
securities involved; (iv) the price per share of Common Stock; and (v) where and
how the transaction was effected. Other than the transactions described in this
Item 5, none of the Reporting Persons nor to the knowledge of the Reporting
Persons, any of their officers or directors, has effected any transactions in
the Common Stock during the preceding sixty days.
ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.
Exhibit A Transactions in the Common Stock by Pebbleton
<PAGE> 5
Page 5 of 7 Pages
SIGNATURES
After reasonable inquiry and to the best of the undersigned's knowledge
and belief, each of the undersigned hereby certifies that the information set
forth in this statement is true, complete and correct.
Dated: January 4, 2000. PEBBLETON CORPORATION N.V.
By:Issam M. Fares, Managing Director
By: /s/ Richard E. Blohm, Jr.
----------------------------------
Richard E. Blohm, Jr.
Attorney in Fact
Dated: January 4, 2000. Issam M. Fares
By: /s/ Richard E. Blohm, Jr.
----------------------------------
Richard E. Blohm, Jr.
Attorney in Fact
<PAGE> 6
Page 6 of 7 Pages
INDEX TO EXHIBITS
Exhibit A Transactions in the Common Stock by Pebbleton
<PAGE> 1
Page 7 of 7 Pages
EXHIBIT A
TRANSACTIONS IN THE COMMON STOCK BY PEBBLETON
With respect to the transactions set forth below, all purchases were
made by Pebbleton Corporation N.V. and were effected on The Nasdaq Stock Market,
Inc., the exchange on which the shares of Common Stock of Dawson Geophysical
Company are traded during the 60 days prior to the filing of this Amendment No.
8.
DATE OF NUMBER OF SHARES PRICE PER SHARE
PURCHASE PURCHASED ($)
12/16/99 6,000 9.0000
12/17/99 2,500 9.0000
12/21/99 1,000 9.0000
12/22/99 2,500 9.0000
12/28/99 2,000 9.0000
3,700 9.0000
-----
5,700
12/30/99 3,500 9.0000
01/03/00 7,500 9.0000
