PATINA OIL & GAS CORP
SC 13D/A, 1997-01-06
CRUDE PETROLEUM & NATURAL GAS
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D. C. 20549

                                  SCHEDULE l3D

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*

                          PATINA OIL & GAS CORPORATION
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                  US 7032241058
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                                                    with a copy to:
Krista L. Ward                                      George J. Mazin
Stark Investments                                   Lowenstein, Sandler, Kohl,
1500 West Market Street                                Fisher & Boylan, P.A.
Mequon, WI 53092                                    65 Livingston Avenue
(414) 241-1810                                      Roseland, New Jersey  07068
                                                    (201) 992-8700
- --------------------------------------------------------------------------------
                       (Name, Address and Telephone Number
                         of Person Authorized to Receive
                           Notices and Communications)

                                December 24, 1996
- --------------------------------------------------------------------------------
                      (Date of Event which Requires Filing
                               of this Statement)

If the filing person has previously  filed a statement on Schedule l3G 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 [ ].

Note: Six copies of this statement, including all exhibits, should be filed with
the  Commission.  See Rule l3d-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.

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).

- --------------------------------------------------------------------------------


- --------------------------------------------------------------------------------
                             CUSIP NO. US 7032241058
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
1)  Names of Reporting Persons (S.S. or I.R.S. Identification Nos. of Above 
    Persons):

    Michael A. Roth and Brian J. Stark (filing as joint filers pursuant to Rule 
    13(d)1(f)(1))

- --------------------------------------------------------------------------------
2)  Check the Appropriate Box if a Member of a Group (See Instructions):

       (a)                 Not
       (b)                 Applicable

- --------------------------------------------------------------------------------
3)   SEC Use Only

- --------------------------------------------------------------------------------
4)   Source of Funds (See Instructions):WC

- --------------------------------------------------------------------------------
5)   Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d)
     or 2(e):
                             Not Applicable

- --------------------------------------------------------------------------------
6)   Citizenship or Place of Organization:

                Wisconsin

- --------------------------------------------------------------------------------
       Number of           7)    Sole Voting Power:                           0
       Shares of Beneficially    -----------------------------------------------
       Owned by            8)    Shared Voting Power:                1,464,420*
       Each Reporting            -----------------------------------------------
       Person With:        9)    Sole Dispositive Power:                      0
                                 -----------------------------------------------
                          10)    Shared Dispositive Power: 1,464,420*
                                 -----------------------------------------------

- --------------------------------------------------------------------------------
11)  Aggregate Amount Beneficially Owned by Each Reporting Person:

           1,464,420*

- --------------------------------------------------------------------------------
12)  Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See 
     Instructions):
                                  Not Applicable

- --------------------------------------------------------------------------------
13)  Percent of Class Represented by Amount in Row (11):

                7.05*

- --------------------------------------------------------------------------------
14)  Type of Reporting Person (See Instructions):           IN

- --------------------------------------------------------------------------------

*    Includes:  799,763 Shares  beneficially  owned by Reliant  Trading upon the
     conversion of 236,317 shares of the Issuer's preferred stock and conversion
     of 113,498 of the Issuer's warrants;  287,517 Shares  beneficially owned by
     Shepherd  Trading  Limited  upon the  conversion  of  82,688  shares of the
     Issuer's preferred stock and conversion of 47,391 of the Issuer's warrants;
     and 377,140 Shares beneficially owned by Staro Partners upon the conversion
     of 110,601 shares of the Issuer's  preferred stock and conversion of 55,955
     of the Issuer's warrants. See Item 2 and Item 5 for additional details.

Item 1: Security and Issuer:

This  statement  relates  to the Common  Stock of Patina  Oil & Gas  Corporation
("Shares"). The issuer has principal executive offices located at 1625 Broadway,
Suite 2000, Denver, Colorado 80202.

Item 2: Identity and Background

1.
         a)       Name: Brian J. Stark
         b)       Residence or Business Address: 1500 West Market Street
                                                 Mequon, WI 53092
         c)       Occupation:                    Investment Fund Manager
                  Staro Asset Management, L.L.C.,Stark & Roth,
                                                 Inc.,Staro Partners
                                                 1500 West Market Street
                                                 Mequon, WI 53092
         d)       Convictions: none
         e)       Civil Proceedings: none
         f)       Citizenship: United States

2.
         a)       Name:  Michael A. Roth
         b)       Residence or Business Address: 1500 West Market Street
                                                 Mequon, WI 53092
         c)       Occupation:       Investment Fund Manager
                                    Staro Asset Management, L.L.C.,
                                    Stark & Roth, Inc., Staro Partners
                                    1500 West Market Street
                                    Mequon, WI 53092
         d)       Convictions: none
         e)       Civil Proceedings: none
         f)       Citizenship: United States

3.
         a)       Name: Staro Partners
         b)       State of Organization: Wisconsin
         c)       Principal Business: Securities Trading
         d)       Address of principal business: 1500 West Market Street
                                                 Mequon, WI 53092
         e)       Address of Principal Office:   same
         f)       Convictions: none
         g)       Civil proceedings: none

4.
         a)       Name: Reliant Trading
         b)       State of Organization: Wisconsin
         c)       Principal Business: Securities Trading
         d)       Address of principal business: 1500 West Market Street
                                                 Mequon, WI 53092
         e)       Address of Principal Office: same
         f)       Convictions: none
         g)       Civil proceedings: none

5.
         a)       Name: Shepherd Trading Limited
         b)       State of Organization: British Virgin Islands
         c)       Principal Business: Securities Trading
                  Address of principal business: c/o International Fund
                                                 Administration, Ltd.
                                                 48 Par-La Ville Road, Suite 464
                                                 Hamilton, HM 11 Bermuda

         d)       Address of Principal Office: same
         e)       Convictions: none
         f)       Civil proceedings: none

Item 3:  Source and Amount of Funds or Other Consideration

         All funds  used by Reliant  Trading  to  purchase  Shares  acquired  by
Reliant Trading,  upon conversion of the Issuer's  preferred stock and warrants,
were  obtained  from the capital  contributed  by the limited  partners of Stark
Investments,  L.P. and general margin financing to Reliant Trading from brokers.
The amount of funds used in making the purchases was $5,808,920.  The funds used
by Shepherd  Trading Limited to purchase the Shares acquired by Shepherd Trading
Limited,  upon  conversion of the Issuer's  preferred  stock and warrants,  were
obtained  from the capital  contributed  by the  shareholders  of Shepherd  Fund
Limited.  The amount of funds used in making the  purchase was  $2,007,432.  All
funds used by Staro Partners to purchase Shares acquired by Staro Partners, upon
conversion of the Issuer's preferred stock and warrants,  were obtained from the
assets of Staro Partners.

The amount of funds used in making the purchase was $2,952,562.

Item 4:  Purpose of Transaction

         The acquisition of the Shares by Reliant  Trading,  by Shepherd Trading
Limited  and by Staro  Partners  are solely  for  investment  purposes.  Further
acquisitions,  sales or short sales of  securities of the issuer may be made for
investment  purposes,  however,  neither  reporting  person has present plans or
intentions which relate to or would result in any of the  transactions  required
to be described in Item 4 of Schedule 13D.

Item 5:  Interest in Securities of the Issuer

         Based upon the information  contained in Patina Oil & Gas Corporation's
quarterly  report on Form 10-Q for the  quarterly  period  ending  September 30,
1996, there were issued and outstanding  19,295,832  Shares.  Messrs.  Stark and
Roth  beneficially own 1,464,420 Shares or 7.05% of the Shares.  799,763 of such
Shares are held by Reliant Trading.  Messrs. Stark and Roth have shared power to
vote or direct the vote and shared power to dispose or direct the disposition of
the  799,763  Shares by virtue  of their  position  as  members  of STARO  ASSET
MANAGEMENT,  L.L.C., the managing partner of Reliant Trading. 287,517 Shares are
held by Shepherd  Trading Limited.  Messrs.  Stark and Roth have shared power to
vote or direct the vote and shared power to dispose or direct the disposition of
the 287,517 Shares by virtue of their position as investment manager of Shepherd
Trading  Limited.  377,140 of such  Shares are held by Staro  Partners.  Messrs.
Stark and Roth have shared  power to vote or direct the vote and shared power to
dispose  or direct  the  disposition  of the  377,140  Shares by virtue of their
position as the partners of Staro Partners.

         The  following  Table  details  the  transactions  by Reliant  Trading,
Shepherd  Trading  Limited and Staro Partners in Patina Oil & Gas  Corporation's
securities since the reporting persons' last filing on Schedule 13D:

                            Shepherd Trading Limited

  Date                   Quantity         Price          Transaction Type

11/20/96                   1,377          $28.61         Open Mkt. Purchase
11/20/96                   2,755            8.55         Open Mkt. Sale
11/22/96                   1,000           29.62         Open Mkt. Purchase
11/22/96                   2,000            9.12         Open Mkt. Sale
11/25/96                   1,000           30.00         Open Mkt. Purchase
11/25/96                   2,000            9.12         Open Mkt. Sale
11/25/96                     200            1.87         Open Mkt. Purchase
11/26/96                   3,333            1.87         Open Mkt. Purchase
12/2/96                    1,133            1.75         Open Mkt. Purchase
12/3/96                    1,699            1.75         Open Mkt. Purchase
12/3/96                      500           30.00         Open Mkt. Purchase
12/3/96                    1,100            9.25         Open Mkt. Sale
12/4/96                    4,417           30.00         Open Mkt. Purchase
12/5/96                      634            9.25         Open Mkt. Sale
12/5/96                    1,133            9.25         Open Mkt. Sale
12/9/96                      500            2.00         Open Mkt. Purchase
12/10/96                     480            2.00         Open Mkt. Purchase
12/12/96                   3,201            2.00         Open Mkt. Purchase
12/16/96                   1,417            9.25         Open Mkt. Sale
12/16/96                   1,921           30.00         Open Mkt. Purchase
12/16/96                     912            9.25         Open Mkt. Sale
12/19/96                   1,426            9.50         Open Mkt. Sale
12/20/96                   4,022           30.25         Open Mkt. Purchase
12/24/96                   1,925            2.25         Open Mkt. Sale

                                 Reliant Trading

 Date                     Quantity         Price          Transaction Type

11/20/96                   4,050          $28.61         Open Mkt. Purchase
11/20/96                   8,099            8.55         Open Mkt. Sale
11/22/96                   1,000           29.62         Open Mkt. Purchase
11/22/96                   2,000            9.12         Open Mkt. Sale
11/25/96                   1,000           30.00         Open Mkt. Purchase
11/25/96                   2,000            9.12         Open Mkt. Sale
11/26/96                   3,333            1.87         Open Mkt. Purchase
12/2/96                    2,659            1.75         Open Mkt. Purchase
12/3/96                    3,854            1.75         Open Mkt. Purchase
12/4/96                   12,662           30.00         Open Mkt. Purchase
12/5/96                    1,816            9.25         Open Mkt. Sale
12/5/96                    3,248            9.25         Open Mkt. Sale
12/10/96                   1,076            2.00         Open Mkt. Purchase
12/12/96                  15,530            2.00         Open Mkt. Purchase
12/16/96                   6,833            9.25         Open Mkt. Sale
12/16/96                   1,486            9.25         Open Mkt. Sale
12/16/96                   5,505           30.00         Open Mkt. Purchase
12/18/96                   3,030            9.50         Open Mkt. Sale
12/19/96                   4,332            9.50         Open Mkt. Sale
12/20/96                  10,825           30.25         Open Mkt. Purchase
12/24/96                   5,501            2.25         Open Mkt. Sale


                                 Staro Partners

 Date                     Quantity         Price          Transaction Type

11/20/96                   1,873          $28.61         Open Mkt. Purchase
11/20/96                   3,746            8.55         Open Mkt. Sale
11/22/96                   1,000           29.62         Open Mkt. Purchase
11/22/96                   2,000            9.12         Open Mkt. Purchase
11/25/96                   2,000            9.12         Open Mkt. Sale
11/25/96                   1,000           30.00         Open Mkt. Purchase
11/26/96                   3,334            1.87         Open Mkt. Purchase
12/2/96                    1,298            1.75         Open Mkt. Purchase
12/3/96                    1,947            1.75         Open Mkt. Purchase
12/4/96                    2,574           30.00         Open Mkt. Purchase
12/5/96                      850            9.25         Open Mkt. Sale
12/5/96                    1,519            9.25         Open Mkt. Sale
12/10/96                     544            2.00         Open Mkt. Purchase
12/12/96                   6,269            2.00         Open Mkt. Purchase
12/16/96                   5,153           30.25         Open Mkt. Purchase
12/16/96                   2,750            9.25         Open Mkt. Sale
12/16/96                     802            9.25         Open Mkt. Sale
12/18/96                     970            9.50         Open Mkt. Sale
12/19/96                   2,042            9.50         Open Mkt. Sale
12/24/96                   2,574            2.25         Open Mkt. Sale

     No other entity controlled by the reporting persons has traded Patina Oil &
Gas Corporation  securities since the reporting persons' last filing on Schedule
13D.

Item 6: Contracts, Arrangements, Understandings or Relationships with Respect to
        Securities of the Issuer.

        See Item 2.


Item 7:  Material to be filed as exhibits.

         Exhibit 1: Agreement as to joint filing.




<PAGE>



                                    EXHIBIT 1

                          AGREEMENT AS TO JOINT FILING

                              Dated January 6, 1997

     The undersigned hereby agree that the Schedule 13D/A with respect to Patina
Oil & Gas Corporation  dated as of the date hereof is filed on behalf of each of
the undersigned jointly pursuant to Rule 13d-1(f)(1).


                                                    /s/Brian J. Stark
                                                    ____________________________
                                                       Brian J. Stark


                                                    /s/Michael A. Roth
                                                    ____________________________
                                                       Michael A. Roth


<PAGE>


                                    SIGNATURE

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

                                                        January 6, 1997


                                                        /s/Brian J. Stark
                                                        ________________________
                                                           Brian J. Stark


                                                        /s/ Michael A. Roth
                                                        ________________________
                                                            Michael A. Roth




ATTENTION:  INTENTIONAL MISSTATEMENTS OR OMISSIONS OF FACT CONSTITUTE FEDERAL 
CRIMINAL VIOLATIONS (SEE 18 U.S.C. 1001).



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