<PAGE> 1
__________________________________
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
__________________________________
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 5)
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
____________________________
May 11, 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 8 Pages
<PAGE> 2
Page 2 of 8 Pages
CUSIP NO.: 239359 10 2
AMENDMENT NO. 5 TO SCHEDULE 13D
<TABLE>
================================================================================
<S> <C>
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) [ ]
- --------------------------------------------------------------------------------
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
814,900
- --------------------------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
0
- --------------------------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
814,900
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
814,900
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
[ ]
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
15.07%
- --------------------------------------------------------------------------------
14 Type of Reporting Person
CO
================================================================================
</TABLE>
<PAGE> 3
Page 3 of 8 Pages
CUSIP NO.:239359 10 2
AMENDMENT NO. 5 TO SCHEDULE 13D
<TABLE>
<S> <C>
================================================================================
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) [ ]
- --------------------------------------------------------------------------------
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
814,900
- --------------------------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
0
- --------------------------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
814,900
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
814,900
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
[ ]
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
15.07%
- --------------------------------------------------------------------------------
14 Type of Reporting Person
IN
================================================================================
</TABLE>
<PAGE> 4
Page 4 of 8 Pages
SCHEDULE 13D
AMENDMENT NO. 5
Unless otherwise defined or indicated in this Amendment No. 5, 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 814,900 shares of Common Stock of
the Issuer, which represents approximately 15.07% of the outstanding Common
Stock based on the number of shares of Common Stock outstanding as of March 31,
1999, as reported by the Issuer in its Form 10-Q for the quarter ended March
31, 1999 filed with the Securities and Exchange Commission on April 30, 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. 5 is a list of all
transactions effected in the Issuer's Common Stock within the past sixty (60)
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
herein, 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
<PAGE> 5
Page 5 of 8 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: May 13, 1999. PEBBLETON CORPORATION N.V.
By: Issam M. Fares, Managing Director
By: /s/ Richard E. Blohm, Jr.
-----------------------------------
Richard E. Blohm, Jr.
Attorney in Fact
Dated: May 13, 1999. Issam M. Fares
By: /s/ Richard E. Blohm, Jr.
-----------------------------------
Richard E. Blohm, Jr.
Attorney in Fact
<PAGE> 6
Page 6 of 8 Pages
INDEX TO EXHIBITS
Exhibit A Transactions in the Common Stock
<PAGE> 1
Page 7 of 8 Pages
EXHIBIT A
TRANSACTIONS IN THE COMMON STOCK
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. 5.
<TABLE>
<CAPTION>
DATE OF PURCHASE NUMBER OF SHARES PRICE PER SHARE
PURCHASED ($)
<S> <C> <C>
03/15/99 200 7.8750
14,800 8.0000
------
15,000
03/16/99 3,700 8.0625
2,000 8.1875
6,400 8.1250
12,000 8.2500
------
24,100
03/17/99 19,900 8.4375
5,200 8.5000
------
25,100
03/23/99 1,000 8.5000
03/24/99 1,300 8.5000
03/25/99 2,800 8.5000
03/26/99 700 8.5000
04/01/99 10,000 8.0625
10,000 8.2500
------
20,000
04/20/99 10,000 9.0000
04/22/99 15,000 9.5700
500 9.6250
2,500 9.7500
------
18,000
04/23/99 1,000 9.4375
8,000 9.7500
-----
9,000
</TABLE>
<PAGE> 2
Page 8 of 8 Pages
<TABLE>
<CAPTION>
DATE OF PURCHASE NUMBER OF SHARES PRICE PER SHARE
PURCHASED ($)
<S> <C> <C>
04/26/99 3,000 9.8725
1,500 9.9375
2,500 10.0000
-----
7,000
04/27/99 7,000 10.0000
04/28/99 95,000 10.0000
04/29/99 14,000 10.125
04/30/99 23,000 10.125
05/04/99 3,000 10.500
1,000 10.375
-----
4,000
05/07/99 5,000 10.625
05/10/99 5,000 10.625
05/11/99 10,000 10.625
</TABLE>
