ROBERTSON STEPHENS & CO INC ET AL, SC 13D, 1997-02-19

ROBERTSON STEPHENS & CO INC ET AL
SC 13D, 1997-02-19

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<PAGE>
CUSIP No. 23380G106

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934
(Amendment No.)*

DAILEY PETROLEUM SERVICES
- --------------------------------------------------------------------------------
Name of Issuer

COMMON STOCK
- --------------------------------------------------------------------------------
(Title of Class of Securities)

23380G106
- --------------------------------------------------------------------------------
CUSIP Number

ROBERT C. GREENWOOD ROBERTSON, STEPHENS & COMPANY
555 CALIFORNIA STREET, SUITE 2600, SAN FRANCISCO, CA 94104
(415) 781-9700
- --------------------------------------------------------------------------------
(Name, Address and Telephone Number of Person Authorized to Receive Notices and
Communications

OCTOBER 9, 1996
- --------------------------------------------------------------------------------
Date of Event which Requires Filing of this Statement

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

Check the following box if a fee is being paid with the statement [ ]. (A fee
is not required only if the reporting person: (1) has a previous statement on
file reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class).
(See Rule 13d-7.)

NOTE: Six copies of this statement, including all exhibits, should be filed
with the Commission. See Rule 13d-1(a) for other parties to whom copies are to
be sent.

*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
disclosures provided in a prior cover page.

<PAGE>

CUSIP No. 23380G106 page 2 of 20

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 (however, see the
Notes).
<PAGE>

CUSIP No. 23380G106 page 3 of 20

- --------------------------------------------------------------------------------
SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 23380G106
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

The Robertson Stephens Global Natural Resources Fund
Tax I.D. 94-6688562
- --------------------------------------------------------------------------------
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
ITEMS 2(d) OR 2(e)
/ /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

CALIFORNIA
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY ------------------------------------------------------------
OWNED 8 SHARED VOTING POWER
250,000
------------------------------------------------------------
BY EACH
REPORTING 9 SOLE DISPOSITIVE POWER
0
------------------------------------------------------------
PERSON WITH 10 SHARED DISPOSITIVE POWER
250,000
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
250,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENT BY AMOUNT IN ROW (11)

5.8%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*
IV
- --------------------------------------------------------------------------------

*SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE,
RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE
ATTESTATION
<PAGE>

CUSIP No. 23380G106 page 4 of 20

1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Robertson, Stephens & Company, Incorporated
Tax I.D. 94-3172874 See Exhibit A for a list of Executive Officers
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) / /
(b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

OO (Working Capital of Purchasing Funds) See Item 2.
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(d) OR 2(e)
/ /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

CALIFORNIA

- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY -------------------------------------------------------
OWNED 8 SHARED VOTING POWER
450,000 (Includes shares held of record by The
Robertson Stephens Orphan Fund of which Robertson,
Stephens & Co. Investment Management, L.P. and
Bayview Investors, Ltd. are the General Partners.
Robertson, Stephens & Co., Inc. is General Partner
of Robertson, Stephens & Co. Investment
Management, L.P. and Bayview Investors, Ltd..
Includes shares held of record by The Robertson
Stephens Orphan Offshore Fund of which Robertson,
Stephens & Co. Investment Management, L.P. is
General Partner. Includes shares held of record
by The Robertson Stephens Global Natural Resources
Fund of which Robertson, Stephens & Co. Investment
Management, L.P. is investment adviser. Includes
shares held of record by The Robertson Stephens
Partners Fund of which Robertson ,Stephens & Co.
Investment Management, L.P. is investment adviser.
See Item 5.)
------------------------------------------------------------
BY EACH
REPORTING 9 SOLE DISPOSITIVE POWER
0
------------------------------------------------------------
PERSON WITH 10 SHARED DISPOSITIVE POWER
450,000
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
450,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENT BY AMOUNT IN ROW (11)

10.5%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON
CO
- --------------------------------------------------------------------------------
<PAGE>

CUSIP No. 23380G106 page 5 of 20

Paul Stephens
Tax I.D. ###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) / /
(b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*
WC & PF
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(d) OR 2(e)
/ /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY -----------------------------------------------------------
OWNED 8 SHARED VOTING POWER
450,000 (Includes shares held of record by The
Robertson Stephens Orphan Fund of which Robertson,
Stephens & Co. Investment Management, L.P. and
Bayview Investors, Ltd. are the General Partners.
Robertson, Stephens & Co., Inc. is General Partner
of Robertson, Stephens & Co. Investment
Management, L.P. and Bayview Investors, Ltd..
Includes shares held of record by The Robertson
Stephens Orphan Offshore Fund of which Robertson,
Stephens & Co. Investment Management, L.P. is
General Partner. Includes shares held of record
by The Robertson Stephens Global Natural Resources
Fund of which Robertson, Stephens & Co. Investment
Management, L.P. is investment adviser. Includes
shares held of record by The Robertson Stephens
Partners Fund of which Robertson, Stephens & Co.
Investment Management, L.P. is investment adviser.
See Item 5.)
------------------------------------------------------------
BY EACH 9 SOLE DISPOSITIVE POWER
REPORTING
------------------------------------------------------------
PERSON WITH 10 SHARED DISPOSITIVE POWER

/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENT BY AMOUNT IN ROW (11)

10.5%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------
<PAGE>

CUSIP No. 23380G106 page 6 of 20

- --------------------------------------------------------------------------------
SCHEDULE 13D

CUSIP NO. 23380G106
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Sanford Robertson
Tax I.D. ###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) / /
(b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*
OO (Working Capital of Purchasing Funds) See Item 2.
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEMS 2(d) OR 2(e)
/ /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

CALIFORNIA
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY -----------------------------------------------------------
OWNED 8 SHARED VOTING POWER
450,000 (Includes shares held of record by The
Robertson Stephens Orphan Fund of which Robertson,
Stephens & Co. Investment Management, L.P. and
Bayview Investors, Ltd. are the General Partners.
Robertson, Stephens & Co., Inc. is General Partner
of Robertson, Stephens & Co. Investment
Management, L.P. and Bayview Investors, Ltd..
Includes shares held of record by The Robertson
Stephens Orphan Offshore Fund of which Robertson,
Stephens & Co. Investment Management, L.P. is
General Partner. Includes shares held of record
by The Robertson Stephens Global Natural Resources
Fund of which Robertson, Stephens & Co. Investment
Management, L.P. is investment adviser. Includes
shares held of record by The Robertson Stephens
Partners Fund of which Robertson ,Stephens & Co.
Investment Management, L.P. is investment adviser.
See Item 5.)
------------------------------------------------------------
BY EACH 9 SOLE DISPOSITIVE POWER
REPORTING
------------------------------------------------------------
PERSON WITH 10 SHARED DISPOSITIVE POWER

450,000
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

450,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENT BY AMOUNT IN ROW (11)

10.5%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------
<PAGE>

CUSIP No. 23380G106 page 7 of 20

Michael G. McCaffery
Tax I.D. ###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) / /
(b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

OO (Working Capital of Purchasing Funds) See Item 2.
- --------------------------------------------------------------------------------

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(d) OR 2(e)
/ /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

CALIFORNIA
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY ------------------------------------------------------------
OWNED 8 SHARED VOTING POWER
450,000 (Includes shares held of record by The
Robertson Stephens Orphan Fund of which Robertson,
Stephens & Co. Investment Management, L.P. and
Bayview Investors, Ltd. are the General Partners.
Robertson, Stephens & Co., Inc. is General Partner
of Robertson, Stephens & Co. Investment
Management, L.P. and Bayview Investors, Ltd..
Includes shares held of record by The Robertson
Stephens Orphan Offshore Fund of which Robertson,
Stephens & Co. Investment Management, L.P. is
General Partner. Includes shares held of record
by The Robertson Stephens Global Natural Resources
Fund of which Robertson, Stephens & Co. Investment
Management, L.P. is investment adviser. Includes
shares held of record by The Robertson Stephens
Partners Fund of which Robertson, Stephens & Co.
Investment Management, L.P. is investment adviser.
See Item 5.)
------------------------------------------------------------
BY EACH 9 SOLE DISPOSITIVE POWER
REPORTING
------------------------------------------------------------
PERSON WITH 10 SHARED DISPOSITIVE POWER

450,000
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
450,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENT BY AMOUNT IN ROW (11)

10.5%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------
<PAGE>

CUSIP No. 23380G106 page 8 of 20

G. Randy Hecht
Tax I.D. ###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) / /

(b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

/ /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

CALIFORNIA
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY ------------------------------------------------------------
OWNED 8 SHARED VOTING POWER
450,000 (Includes shares held of record by The
Robertson Stephens Orphan Fund of which Robertson,
Stephens & Co. Investment Management, L.P. and
Bayview Investors, Ltd. are the General Partners.
Robertson, Stephens & Co., Inc. is General Partner
of Robertson, Stephens & Co. Investment
Management, L.P. and Bayview Investors, Ltd..
Includes shares held of record by The Robertson
Stephens Orphan Offshore Fund of which Robertson,
Stephens & Co. Investment Management, L.P. is
General Partner. Includes shares held of record
by The Robertson Stephens Global Natural Resources
Fund of which Robertson, Stephens & Co. Investment
Management, L.P. is investment adviser. Includes
shares held of record by The Robertson Stephens
Partners Fund of which Robertson, Stephens & Co.
Investment Management, L.P. is investment adviser.
See Item 5.)
------------------------------------------------------------
BY EACH 9 SOLE DISPOSITIVE POWER
REPORTING
------------------------------------------------------------
PERSON WITH 10 SHARED DISPOSITIVE POWER
450,000
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
450,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENT BY AMOUNT IN ROW (11)

10.5%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------
<PAGE>

CUSIP No. 23380G106 page 9 of 20

Kenneth R. Fitzsimmons
Tax I.D. ###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) / /
(b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

CALIFORNIA
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY ------------------------------------------------------------
OWNED 8 SHARED VOTING POWER
450,000 (Includes shares held of record by The
Robertson Stephens Orphan Fund of which Robertson,
Stephens & Co. Investment Management, L.P. and
Bayview Investors, Ltd. are the General Partners.
Robertson, Stephens & Co., Inc. is General Partner
of Robertson, Stephens & Co. Investment
Management, L.P. and Bayview Investors, Ltd..
Includes shares held of record by The Robertson
Stephens Orphan Offshore Fund of which Robertson,
Stephens & Co. Investment Management, L.P. is
General Partner. Includes shares held of record
by The Robertson Stephens Global Natural Resources
Fund of which Robertson, Stephens & Co. Investment
Management, L.P. is investment adviser. Includes
shares held of record by The Robertson Stephens
Partners Fund of which Robertson, Stephens & Co.
Investment Management, L.P. is investment adviser.
See Item 5.)
------------------------------------------------------------
BY EACH 9 SOLE DISPOSITIVE POWER
REPORTING
------------------------------------------------------------
PERSON WITH 10 SHARED DISPOSITIVE POWER

450,000
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

450,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENT BY AMOUNT IN ROW (11)

10.5%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

*SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE,
<PAGE>

CUSIP No. 23380G106 page 10 of 20

ITEM 1. SECURITY AND ISSUER.

This Schedule 13D is filed with respect to the Common Stock of
Dailey Petroleum Services (the "Company").

ITEM 2: IDENTITY AND BACKGROUND.

The Schedule 13D is filed on behalf of The Robertson Stephens
Orphan Fund, Robertson, Stephens & Company Investment Management, L.P.
("RS&Co., L.P."), Bayview Investors, Ltd. ("Bayview"), The Robertson Stephens
Global Natural Resources Fund, The Robertson Stephens Partners Fund, Robertson,
Stephens & Company, Inc. ("RS&Co., Inc."), and RS&Co., Inc.'s five shareholders,
Messrs. Sanford R. Robertson, Paul H. Stephens, Michael G. McCaffery, G. Randy
Hecht, and Kenneth R. Fitzsimmons. The purchase of the Company's shares giving
rise to this 13D was made by one investment fund, The Robertson Stephens Orphan
Fund (the "Fund").

This Schedule 13D relates to the direct beneficial ownership in
the shares of the Company by the Funds, and the indirect beneficial ownership of
RS&Co., L.P., Bayview, and RS&Co., Inc. in the shares of the Company held by the
Funds. Messrs. Robertson, Stephens, McCaffery, Hecht and Fitzsimmons disclaim
any beneficial ownership with respect to shares of the Company that RS&Co., Inc.
may be deemed to be beneficially own, are included in this Schedule 13D for
protective disclosure purposes only, and shall not be deemed by their inclusion
in this Schedule 13D to have made any admission that any such person has any
beneficial interest in such shares.

Set forth below is the following information with respect to the
persons signing this Schedule 13D: name; place of organization; address of
principal business and office; principal business; information concerning
criminal convictions during the past five years; and information concerning
civil or administrative proceedings during the past five years with respect to
any state or federal securities laws.

I. (a) The Robertson Stephens Global Natural Resources Fund, A
Massachusetts Business Trust. The Registered Investment Manager of The
Robertson Stephens Global Natural Resources Fund is: Robertson, Stephens & Co.
Investment Management, L.P. The General Partner of Robertson, Stephens & Co.
Investment Management, L.P. is Robertson, Stephens & Company, Incorporated.

(b) 555 California Street, Suite 2600
San Francisco, CA 94104

(d) No convictions in criminal proceedings.

(e) No civil or administrative proceedings.

II. (a) Robertson, Stephens & Company, Incorporated, is a California
Corporation. Robertson, Stephens & Company, Incorporated is the General Partner
of Robertson, Stephens & Company, L.P.
<PAGE>

CUSIP No. 23380G106 page 11 of 20

(b) 555 California Street, Suite 2600
San Francisco, CA 94104

(d) No convictions in criminal proceedings.

(e) No civil or administrative proceedings.

VI. (a) Paul H. Stephens.

(b) 555 California Street, Suite 2600
San Francisco, CA 94104

(c) Paul H. Stephens is Managing Director and Chief Investment
Officer, and a shareholder, of Robertson, Stephens & Company,
Incorporated.

(d) No convictions in criminal proceedings.

(e) No civil or administrative proceedings.

VII. (a) Sanford R. Robertson.

(b) 555 California Street, Suite 2600
San Francisco, CA 94104

(d) No convictions in criminal proceedings.

(e) No civil or administrative proceedings.

VIII. (a) Michael G. McCaffery.

(b) 555 California Street, Suite 2600
San Francisco, CA 94104

(c) Michael G. McCaffery is the President and Chief Executive
Officer, and a shareholder, of Robertson, Stephens & Company,
Incorporated.

(d) No convictions in criminal proceedings.

(e) No civil or administrative proceedings.

IX. (a) G. Randy Hecht.

(b) 555 California Street, Suite 2600
San Francisco, CA 94104
<PAGE>

CUSIP No. 23380G106 page 12 of 20

(c) G. Randy Hecht is the Executive Vice President, Chief Operating
Officer, and shareholder of Robertson, Stephens & Company,
Incorporated.

(d) No convictions in criminal proceedings.

(e) No civil or administrative proceedings.

X. (a) Kenneth R. Fitzsimmons.

(b) 555 California Street, Suite 2600
San Francisco, CA 94104

(c) Kenneth R. Fitzsimmons is the Managing Director, Director of
Capital Markets, and shareholder of Robertson, Stephens & Company, Incorporated.

(d) No convictions in criminal proceedings.

(e) No civil or administrative proceedings.

ITEM 3: SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION:

The securities with respect to which this Schedule 13D is filed were
purchased by the Funds using working capital contributed by their respective
partners.

ITEM 4: PURPOSE OF TRANSACTION:

The securities with respect to which this Schedule 13D is filed were
purchased by the Funds in the ordinary course of investment and not with the
intention nor effect of changing or influencing control of the Issuer. The
reporting persons may sell all or part or acquire additional securities of the
Issuer depending on market conditions and other economic factors.
<PAGE>

CUSIP No. 23380G106 page 13 of 20

ITEM 5: INTEREST IN SECURITIES OF THE ISSUER.

(a) (b) The aggregate number and percentage of the class of
securities identified pursuant to Item 1 of this Schedule 13D that are
beneficially owned by the persons listed in Item 2 are as follows:
<TABLE>
<CAPTION>

No. of Shares
Name of Beneficially Percentage of
Beneficial Owner Owned Class(1)
--------------------------------------------------------------------------------------------
<S> <C> <C>
The Robertson Stephens Global Natural Resources Fund 250,000 (1) 5.85%
The Robertson Stephens Partners Fund 150,000 (2) 3.51%
The Robertson Stephens Orphan Fund 40,000 (3) .93%
The Robertson Stephens Orphan Offshore Fund 10,000 (4) .23%
Robertson Stephens & Co Investment Management L.P. 50,000 (5) .93%
Bayview Investors, Ltd. 40,000 (6) .93%
Robertson, Stephens & Company, Incorporated 450,000 (7) 10.53%
Paul H. Stephens 450,000 (8) 10.53%
Sanford R. Robertson 450,000 (9) 10.53%
Michael G. McCaffery 450,000 (10) 10.53%
G. Randy Hecht 450,000 (11) 10.53%
Kenneth R. Fitzsimmons 450,000 (12) 10.53%

</TABLE>

(1) All percentages in this table are based, pursuant to Rule 13D-1(e) of
the Securities Exchange Act of 1934, as amended, on 4,270,000 shares
of Common Stock of the Issuer outstanding as of December 6, 1996.

(2) The Robertson Stephens Global Natural Resources Fund is a Registered
Investment Company. Robertson, Stephens & Co. Investment Management
L.P. is the registered investment manager for the Global Natural
Resources Fund. RS&Co., Inc. is the General Partner of Robertson
Stephens & Co. Investment Management L.P.

(3) The Robertson Stephens Partners Fund is a Registered Investment
Company. Robertson Stephens & Co. Investment Management L.P. is the
registerd investment manager for the Global Natural Resources Fund.
RS&Co., Inc. is the General Partner of Robertson Stephens & Co.
Investment Management L.P.

(4) The Robertson Stephens Orphan Fund is a California Limited
Partnership.

(5) The Robertson Stephens Orphan Offshore Fund is a Cayman Islands
Limited Partnership.

(6) Robertson, Stephens & Co. Investment Management L.P., a California
Limited Partnership, as General Partner of The Robertson Stephens
Orphan Fund and the Robertson Stephens Orphan Offshore Fund is deemed
to have shared dispositive power over 50,000 shares of the Company.
<PAGE>

CUSIP No. 23380G106 page 14 of 20

(7) Bayview Investors, Ltd. is a California Limited Partnership, as
General Partner of The Robertson Stephens Orphan Fund is deemed to
have shared dispositive power over 40,000 shares of the Company.

(8) Robertson, Stephens & Company, Inc., a California Corporation, is the
General Partner of Robertson, Stephens & Company Investment Management
L.P., and as such is deemed to have shared dispositive power over
50,000 shares of the Company. As General Partner of the Global
Natural Resources Fund and the Partners Fund's Investment Adviser,
Robertson Stephens & Co. Investment Management L.P., Inc. is deemed
to have shared dispositive power over 400,000 shares of the Company.

(9) Paul H. Stephens is the Chief Investment Officer of RS&Co., Inc. and
as such may be deemed to have shared voting power over 450,000 shares
of the Company held by the Funds. He is also a shareholder of
Robertson, Stephens & Company Inc.

(10) Sanford R. Robertson is Chairman and a shareholder of Robertson,
Stephens & Company Inc. and as such may be deemed to have shared
voting power over 450,000 shares of the Company held by the Funds.

(11) Michael G. McCaffery is President and Chief Executive Officer and a
shareholder of Robertson, Stephens & Company Inc. and as such may be
deemed to have shared voting power over 450,000 shares of the Company
held by the Funds.

(12) G. Randal Hecht is Executive Vice President, Chief Operating Officer
and a shareholder of Robertson, Stephens & Company Inc. and as such
may be deemed to have shared voting power over 450,000 shares of the
Company held by the Funds.

(13) Kenneth R. Fitzsimmons is the Managing Director, Director of Capital
Markets and a shareholder of Robertson, Stephens & Company Inc. and as
such may be deemed to have shared voting power over 450,000 shares of
the Company held by the Funds.
<PAGE>

CUSIP No. 23380G106 page 15 of 20

ENTITY DATE SHARES PRICE TRANSACTION
------ ---- ------ ----- -----------
<S> <C> <C> <C> <C>
Global Natural Resources Fund January 17 1997 2,500 $10.38 Open Mkt. Sell
Global Natural Resources Fund January 16 1997 4,200 $10.17 Open Mkt. Sell
Global Natural Resources Fund January 15 1997 1,700 $10.08 Open Mkt. Sell
Global Natural Resources Fund January 9 1997 3,200 $10.10 Open Mkt. Sell
Global Natural Resources Fund January 7 1997 3,700 $10.57 Open Mkt. Sell
Global Natural Resources Fund January 6 1997 10,000 $10.25 Open Mkt. Sell
Orphan Offshore Fund January 17 1997 200 $10.38 Open Mkt. Sell
Orphan Offshore Fund January 16 1997 1300 $10.15 Open Mkt. Sell
Orphan Offshore Fund January 15 1997 1100 $10.02 Open Mkt. Sell
Orphan Offshore Fund January 9 1997 1200 $10.11 Open Mkt. Sell
Orphan Offshore Fund January 7 1997 1200 $10.58 Open Mkt. Sell
Orphan Offshore Fund December 2 1996 7000 $10.87 Open Mkt. Sell
Partners Fund November 6 1996 1000 $10.13 Open Mkt. Sell
Partners Fund November 4 1996 1000 $10.25 Open Mkt. Sell
Partners Fund January 17 1997 2500 $10.37 Open Mkt. Sell
Partners Fund January 16 1997 4300 $10.17 Open Mkt. Sell
Partners Fund January 15 1997 1500 $10.09 Open Mkt. Sell
Partners Fund January 9 1997 3200 $10.12 Open Mkt. Sell
Orphan Offshore Fund January 7 1997 3800 $10.58 Open Mkt. Sell
Orphan Offshore Fund January 6 1997 10000 $10.25 Open Mkt. Sell
The Orphan Fund December 2 1996 5800 $10.87 Open Mkt. Buy
The Orphan Fund November 6 1996 1000 $10.13 Open Mkt. Buy
Orphan Offshore Fund November 4 1996 1000 $10.25 Open Mkt. Buy
The Orphan Fund January 17 1997 4800 $10.38 Open Mkt. Sell
The Orphan Fund January 16 1997 7200 $10.00 Open Mkt. Sell
The Orphan Fund January 15 1997 3700 $10.00 Open Mkt. Sell
</TABLE>

<PAGE>

CUSIP No. 23380G106 page 16 of 20

<TABLE>
<S> <C> <C> <C> <C>
The Orphan Fund January 9 1997 5200 $10.13 Open Mkt. Sell
The Orphan Fund January 7 1997 6100 $10.63 Open Mkt. Sell
</TABLE>

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
TO SECURITIES OF THE ISSUER.

Please refer to Item 5.

ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

The following exhibits are filed herewith:

Exhibit A - Agreement of Joint Filing

Exhibit B - Power of Attorney

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CUSIP No. 23380G106 page 17 of 20

ITEM 8. SIGNATURE PAGE.

After reasonable inquiry and to the best of my knowledge and belief,
the undersigned certify that the information set forth in this statement is
true, complete and correct.

Dated:

THE ROBERTSON STEPHENS ORPHAN FUND, A CALIFORNIA LIMITED
PARTNERSHIP.
By Robertson, Stephens & Company, L.P.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
------------------
Paul H. Stephens
Managing Director and Chief Investment Officer

BAYVIEW INVESTORS, LTD., A CALIFORNIA LIMITED PARTNERSHIP.
By Robertson, Stephens & Company, L.P.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
-----------------
Paul H. Stephens
Managing Director and Chief Investment Officer

ROBERTSON, STEPHENS & COMPANY, L.P., A CALIFORNIA LIMITED PARTNERSHIP.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
------------------
Paul H. Stephens
Managing Director and Chief Investment Officer

THE ROBERTSON STEPHENS CONTRARIAN FUND, A MASSACHUSETTS
BUSINESS TRUST.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
-----------------
Paul H. Stephens
Managing Director and Chief Investment Officer

ROBERTSON, STEPHENS & COMPANY, INCORPORATED

By: Paul H. Stephens*
------------------
Paul H. Stephens
Managing Director and Chief Investment Officer
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CUSIP No. 23380G106 page 18 of 20

Paul H. Stephens*
------------------
Paul H. Stephens

Sanford R. Robertson*
----------------------
Sanford R. Robertson

Michael G. McCaffery*
---------------------
Michael G. McCaffery

G. Randy Hecht*
----------------
G. Randy Hecht

Kenneth R. Fitzsimmons*
-----------------------
Kenneth R. Fitzsimmons

*By:
------------------------------
Robert C. Greenwood
Pursuant to Power of Attorney
Previously Filed

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CUSIP No. 23380G106 page 19 of 20
EXHIBIT A

AGREEMENT OF JOINT FILING

The undersigned hereby agree that they are filing jointly pursuant to
Rule 13d-1(f)(1) of the Act of the Statement dated January 31, 1997 containing
the information required by Schedule 13D, for the Common Stock of Dailey
Petroleum Services, Inc. held by The Robertson Stephens Orphan Fund, The
Robertson Stephens Orphan Offshore Fund, Bayview Investors, Ltd., Robertson,
Stephens & Company, Investment Management L.P., The Robertson Stephens Global
Natural Resources Fund, The Robertson Stephens Partners Fund, and Robertson,
Stephens & Company, Incorporated.

Dated: January 31, 1997

THE ROBERTSON STEPHENS ORPHAN FUND, A CALIFORNIA LIMITED PARTNERSHIP.
By Robertson, Stephens & Company, L.P.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
-------------------
Paul H. Stephens
Managing Director and Chief Investment Officer

BAYVIEW INVESTORS, LTD., A CALIFORNIA LIMITED PARTNERSHIP.
By Robertson, Stephens & Company, L.P.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
------------------
Paul H. Stephens
Managing Director and Chief Investment Officer

ROBERTSON, STEPHENS & COMPANY INVESTMENT MANAGEMENT, L.P., A
CALIFORNIA LIMITED PARTNERSHIP.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
------------------
Paul H. Stephens
Managing Director and Chief Investment Officer

THE ROBERTSON STEPHENS GLOBAL NATURAL RESOURCES FUND, A
MASSACHUSETTS BUSINESS TRUST.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
------------------
Paul H. Stephens
Managing Director and Chief Investment Officer

<PAGE>
CUSIP No. 23380G106 page 20 of 20

THE ROBERTSON STEPHENS PARTNERS FUND, A MASSACHUSETTS
BUSINESS TRUST.
By Robertson, Stephens & Company, Incorporated

By: Paul H. Stephens*
------------------
Paul H. Stephens
Managing Director and Chief Investment Officer

ROBERTSON, STEPHENS & COMPANY, INCORPORATED

By: Paul H. Stephens*
------------------
Paul H. Stephens
Managing Director and Chief Investment Officer

Paul H. Stephens*
------------------
Paul H. Stephens

Sanford R. Robertson*
------------------------
Sanford R. Robertson

Michael G. McCaffery*
----------------------
Michael G. McCaffery

G. Randy Hecht*
---------------------
G. Randy Hecht

Kenneth R. Fitzsimmons*
------------------------
Kenneth R. Fitzsimmons

*By
------------------------
Robert C. Greenwood
Pursuant to Power of Attorney
Previously Filed

<PAGE>

EXHIBIT B

ROBERTSON, STEPHENS & COMPANY, INC.

POWER OF ATTORNEY

SCHEDULES 13D AND 13G - FORMS 3,4, & 5

Each of the undersigned, solely in his capacity as a shareholder of
Robertson, Stephens & Company, Inc. ("the Company"), does hereby appoint,
Paul Stephens, G. Randy Hecht, Dana Welch, Terry Otton and Robert Greenwood
(with full power to each of them to act alone), his true and lawful
attorney (in fact) and agent to execute in his name, place, and stead (in
such capacities) any and all Schedules 13D and 13G under Sections 13(d) and
13(g), respectively, of the Securities and Exchange Act of 1934, as amended
(the "Act") and all Forms 3, 4, and 5 under Section 16 of the Act, and any
amendments thereto, in connection with securities beneficially owned by the
Company, and all documents necessary or desirable in connection therewith,
including all exhibits and to file the same with the Securities and
Exchange Commission. Each said attorney and agent has power and authority
to do and perform in the name of and on behalf of each of the undersigned,
in any and all capacities, every act whatsoever necessary or advisable to
be done in the premises as fully and to all intents and purposes as the
undersigned might or could do in person, hereby ratifying and approving the
act of each said attorney and agent.

/s/ G. Randy Hecht February 7, 1997
- --------------------------------------------------------------------------------
G. Randy Hecht

/s/ Paul H. Stephens February 7, 1997
- --------------------------------------------------------------------------------
Paul H. Stephens

/s/ Michael McCaffery February 7, 1997
- --------------------------------------------------------------------------------
Michael McCaffery

/s/ Kenneth Fitzsimmons February 7, 1997
- --------------------------------------------------------------------------------
Kenneth Fitzsimmons

/s/ Sanford Robertson February 7, 1997
- --------------------------------------------------------------------------------
Sanford Robertson