-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, MW5ESPz+53qdzQdovgv481JpfYTmPlOLWFssGOPITXKNQxjXRqQTWWksavdxzN1X oHtpwA3YB19tH5wOcYrw2Q== 0000940180-99-001097.txt : 19990917 0000940180-99-001097.hdr.sgml : 19990917 ACCESSION NUMBER: 0000940180-99-001097 CONFORMED SUBMISSION TYPE: SC 13D PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19990916 GROUP MEMBERS: AIF II LP GROUP MEMBERS: AIF II, L.P. GROUP MEMBERS: LION ADVISORS SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: SHERIDAN ENERGY INC CENTRAL INDEX KEY: 0001018355 STANDARD INDUSTRIAL CLASSIFICATION: OIL AND GAS FIELD EXPLORATION SERVICES [1382] IRS NUMBER: 760507664 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D SEC ACT: SEC FILE NUMBER: 005-52123 FILM NUMBER: 99712592 BUSINESS ADDRESS: STREET 1: 1000 LOUISIANA STREET 2: STE 800 CITY: HOUSTON STATE: TX ZIP: 77002 BUSINESS PHONE: 7136517899 MAIL ADDRESS: STREET 1: 222 PENNBRIGHT STREET 2: STE 200 CITY: HOUSTON STATE: TX ZIP: 77090 FORMER COMPANY: FORMER CONFORMED NAME: GEOSTRAT RESOURCES INC DATE OF NAME CHANGE: 19960708 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: AIF II LP CENTRAL INDEX KEY: 0000904239 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D BUSINESS ADDRESS: STREET 1: C/O APOLLO ADVISORS LP STREET 2: 1999 AVENUE OF THE STARS SUITE 1900 CITY: LOS ANGELES STATE: CA ZIP: 90067 BUSINESS PHONE: 914-694-8000 MAIL ADDRESS: STREET 1: C/O APOLLO ADVISORS LP STREET 2: TWO MANHATTANVILLE ROAD CITY: PURCHASE STATE: NY ZIP: 10577 SC 13D 1 SCHEDULE 13D SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 -------------- 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/ -- SHERIDAN ENERGY, INC. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock - -------------------------------------------------------------------------------- (Title of Class of Securities) 823764 10 5 - -------------------------------------------------------------------------------- (CUSIP Number) John F. Hartigan, Esq. Morgan, Lewis & Bockius LLP 300 South Grand Avenue Los Angeles, California 90071-3132 (213) 612-2500 - -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) September 13, 1999 - -------------------------------------------------------------------------------- (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 - ----------------------- --------------------- CUSIP NO. 823764 10 5 13D PAGE 2 OF 5 PAGES - ----------------------- --------------------- - ------------------------------------------------------------------------------ NAME OF REPORTING PERSONS 1 S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Lion Advisors, L.P. - ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* 2 (a) [_] (b) [X] - ------------------------------------------------------------------------------ SEC USE ONLY 3 - ------------------------------------------------------------------------------ SOURCE OF FUNDS* 4 OO - ------------------------------------------------------------------------------ CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) [_] 5 - ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 6 Delaware - ------------------------------------------------------------------------------ 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 - ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSONS 11 49,855 shares of Common Stock - ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* 12 [_] - ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 13 0.7%** - ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON* 14 PN - ------------------------------------------------------------------------------ ** 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 - ----------------------- --------------------- CUSIP NO. 872424 2 05 13D PAGE 3 OF 5 PAGES - ----------------------- --------------------- - ------------------------------------------------------------------------------ NAME OF REPORTING PERSONS 1 S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS AIF II, L.P. - ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* 2 (a) [_] (b) [X] - ------------------------------------------------------------------------------ SEC USE ONLY 3 - ------------------------------------------------------------------------------ SOURCE OF FUNDS* 4 OO - ------------------------------------------------------------------------------ CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [_] 5 - ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 6 Delaware - ------------------------------------------------------------------------------ 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 [_] - ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 13 12.8%** - ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON* 14 PN - ------------------------------------------------------------------------------ ** 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 STATEMENT PURSUANT TO RULE 13d-1 OF THE GENERAL RULES AND REGULATIONS UNDER THE SECURITIES EXCHANGE ACT OR 1934, AS AMENDED ================================================================================ 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. - ------- ------------------- 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. - ------- ---------------------- 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 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 ----------------------------------------- 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 ----------------------------------------- Name: Michael D. Weiner Title: Vice President, Apollo Capital Management, Inc. Page 5 of 5 Pages -----END PRIVACY-ENHANCED MESSAGE-----