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1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 SCHEDULE 13-G Under the Securities Exchange Act of 1934 (Amendment No. 3 ) LSB Industries, Inc. (Name of Issuer) $3.25 Convertible Preferred Stock (Title of Class of Securities) 502160-50-0 (CUSIP Number) Check the following box if a fee is being paid with this statement (A fee is not required only if the filing person: (1) has a previous statement on reporting the 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). *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 the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities and 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). SEC 1745 (2/92) 2 Name of reporting person: Ryback Management Corporation I.R.S. Identification No. of Above Entity 43-1615580 Check Appropriate Box if a member of a group* 3. SEC use only 4. Citizenship or Place of Organization Michigan Number of 5. Sole Voting Power Shares 423,900 convertible preferred shares results in 1,835,063 common shares Beneficially 6. Shared Voting Power Owned by Each 7. Sole Dispositive Power Reporting 423,900 convertible preferred shares results in 1,835,063 common shares Person With 8. Shared Dispositive Power 9. Aggregate Amount Beneficially owned by each reporting person: 1,835,063 converted shares held by Lindner Dividend Fund 10. Check Box if the Aggregate amount in Row (9) excludes certain shares 11. Percent of Class Represented by Amount in Row (9) 12.42% fully diluted 12. Type of Reporting Person IA - Ryback Management Corporation IV - Lindner Investment Series Trust sec 1745 (6-80) SEE INSTRUCTION BEFORE FILLING OUT! 3 SEC 13G SECURITIES AND EXCHANGE COMMISSION SCHEDULE 13g Amendment No. 3 Item 1(a) Name of Issuer: LSB Industries, Inc. Item 1(b) Address of Issuer's Principal Executive Offices: 16 South Pennsylvania Oklahoma City, OK 73107 Item 2(a) Name of Person Filing: Ryback Management Corporation Item 2(b) Address of Principal Business Office: 7711 Carondelet Ave., Box 16900, St. Louis, MO 63105 Item 2(c) Citizenship: Michigan Items 2(d) Title and Class of Securities: Convertible Preferred Stock Item 2(e) CUSIP: 502160-50-0 Item 3) If this statement is filed pursuant to Rule 13d-1(b) or, 13d-2(b), check whether the person filing is a: [X] Investment Company registered under Section 8 of the Investment Company Act ( LINDNER INVESTMENT SERIES TRUST) [X] Investment Company Adviser registered under Section 203 of the Investment Advisers Act of 1940 (RYBACK MANAGEMENT CORPORATION) Item 4 Ownership: The Shares listed below were held in a fiduciary capacity by Ryback Management and/or Lindner Investment Series Trust as of December 31, 1997: (A) Amount beneficially owned: 1,835,063 converted shares held by Lindner Dividend Fund (B) Percent of class: 12.42% fully diluted (C) Number of shares as to which such subject COMPANY has: (1)sole power to vote or direct to vote: 1,835,063 (2)shared power to vote or direct to vote: (3)sole power to dispose of or direct disposition of: 1,835,063 (4)shared power to dispose or direct disposition of: Instruction: For computation regarding securities which represent the right to acquire an underlying security see Rule 13d-3(d)(1). 4 Item 5. Ownership of Five Percent or Less of a Class Not Applicable Item 6. Ownership of More than Five Percent on Behalf of Another Person. Lindner Dividend Fund, a registered investment company, is a holder of 423,900 convertible preferred shares, which if converted would result in a holding of 12.42% of the outstanding common shares. Lindner Dividend Fund is a separate series of the Lindner Investment Series Trust. Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported On By the Parent Holding Company. See Item 3 Item 8. Identification and Classification of Members of the Group. Not Applicable Item 9. Notice of Dissolution of Group Not Applicable Item 10. Certification By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purposes or effect. After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. DATED: January 27, 1997 /S/ Eric E. Ryback, President Ryback Management Corporation Lindner Investment Series Trust (314) 727-5305