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SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
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SCHEDULE 13D
(Rule 13d-101)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED
PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED
PURSUANT TO RULE 13d-2(a)
(Amendment No. 1)/1/
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SHERIDAN ENERGY, INC.
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(Name of Issuer)
Common Stock
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(Title of Class of Securities)
823764 10 5
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(CUSIP Number)
John F. Hartigan, Esq.
Morgan, Lewis & Bockius LLP
300 South Grand Avenue
Los Angeles, California 90071-3132
(213) 612-2500
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(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)
September 13, 1999
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(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 that is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
[_].
Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7(b) for other
parties to whom copies are to be sent.
________________
/1/ 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 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 5 Pages
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CUSIP NO. 823764 10 5 13D PAGE 2 OF 5 PAGES
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NAME OF REPORTING PERSONS
1 S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
Lion Advisors, L.P.
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CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [X]
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SEC USE ONLY
3
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SOURCE OF FUNDS*
4
OO
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CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) or 2(e) [_]
5
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CITIZENSHIP OR PLACE OF ORGANIZATION
6
Delaware
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SOLE VOTING POWER
7
NUMBER OF
49,855 shares of Common Stock
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 8
OWNED BY 0
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
9
REPORTING
49,855 shares of Common Stock
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 10
0
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSONS
11
49,855 shares of Common Stock
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CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
12
[_]
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
13
0.7%**
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TYPE OF REPORTING PERSON*
14
PN
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** Based on information contained in the Form 8-K of Sheridan Energy, Inc.
filed on August 25, 1999.
*SEE INSTRUCTIONS BEFORE FILLING OUT!
Page 2 of 5 Pages
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CUSIP NO. 872424 2 05 13D PAGE 3 OF 5 PAGES
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NAME OF REPORTING PERSONS
1 S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
AIF II, L.P.
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CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [X]
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SEC USE ONLY
3
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SOURCE OF FUNDS*
4
OO
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CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEMS 2(d) or 2(e) [_]
5
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CITIZENSHIP OR PLACE OF ORGANIZATION
6
Delaware
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SOLE VOTING POWER
7
NUMBER OF
862,946 shares of Common Stock
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 8
OWNED BY 0
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
9
REPORTING
862,946 shares of Common Stock
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 10
0
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11
862,946 shares of Common Stock
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
12
[_]
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
13
12.8%**
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TYPE OF REPORTING PERSON*
14
PN
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** Based on information contained in the Form 8-K of Sheridan Energy, Inc.
filed on August 25, 1999.
*SEE INSTRUCTIONS BEFORE FILLING OUT!
Page 3 of 5 Pages
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STATEMENT PURSUANT TO RULE 13d-1
OF THE
GENERAL RULES AND REGULATIONS
UNDER THE
SECURITIES EXCHANGE ACT OR 1934, AS AMENDED
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The Statement on Schedule 13D of Lion Advisors, L.P., a Delaware limited
partnership ("Lion"), and AIF II, L.P., a Delaware limited partnership ("AIF
II"), relating to the Common Stock, par value $.01 per share, of Sheridan
Energy, Inc. (as successor to TGX Corporation) is hereby amended as set forth
herein.
Item 1. Security and Issuer.
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This Statement on Schedule 13D relates to the Common Stock, par value $0.01
per share ("Common Stock"), of Sheridan Energy, Inc., a Delaware corporation
(the "Issuer"). The principal executive offices of the Issuer are located at
1000 Louisiana, Suite 800, Houston, Texas 77002.
Item 2. Purpose of Transaction.
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On August 25, 1999, the Issuer entered into an Agreement and Plan of Merger
(the "Merger Agreement") with Calpine Corporation, a Delaware corporation
("Calpine"), and CPN Sheridan, Inc., a Delaware corporation and a wholly-owned
subsidiary of Calpine ("CPN Sheridan"), pursuant to which CPN Sheridan agreed to
make an offer (the "Offer") to purchase all of the outstanding shares of Common
Stock of the Issuer (the "Shares") for a purchase price of $5.50 per Share, net
to the sellers in cash. The Merger Agreement provides, among other things, that
as soon as practicable after the satisfaction or waiver of the conditions set
forth in the Merger Agreement (including the tender of a majority of the
outstanding Shares pursuant to the Offer), CPN Sheridan will be merged with and
into the Issuer, and the Issuer will continue as the surviving corporation and
wholly-owned subsidiary of Calpine. The Merger Agreement, a copy of which was
filed as Exhibit 2.1 to the Issuer's Current Report on Form 8-K dated August 31,
1999, is incorporated herein by reference in its entirety.
In response to the Offer, Lion and AIF II each tendered to CPN Sheridan all
of the shares of Common Stock owned by them.
Page 4 of 5 Pages
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SIGNATURE
After reasonable inquiry and to the best of their knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct.
Dated: September 14, 1999
LION ADVISORS, L.P.
By: Lion Capital Management, Inc.,
General Partner
By: /s/ Michael D. Weiner
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Name: Michael D. Weiner
Title: Vice President, Lion Capital
Management, Inc.
AIF II, L.P.
By: Apollo Advisors, L.P.,
Managing General Partner
By: Apollo Capital Management, Inc.,
General Partner
By: /s/ Michael D. Weiner
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Name: Michael D. Weiner
Title: Vice President, Apollo Capital
Management, Inc.
Page 5 of 5 Pages
