UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 5)* Cano Petroleum, Inc. --------------------------------------------------- (Name of Issuer) Common Stock, par value $0.0001 per share --------------------------------------------------- (Title of Class of Securities) 137801106 --------------------------------------------------- (CUSIP Number) Steven J. Pully, Esq. Carlson Capital, L.P. 2100 McKinney Avenue, Suite 1600 Dallas, TX 75201 (214) 932-9600 with a copy to Peter Halasz Schulte Roth & Zabel LLP 919 Third Avenue New York, New York 10022 (212) 756-2000 --------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) May 26, 2009 --------------------------------------------------- (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 ss.ss.240.13d-1(e), 240.13d-1(f) or 240.13d-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 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. 137801106 SCHEDULE 13D/A PAGE 1 OF 8 PAGES ----------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS Double Black Diamond Offshore Ltd. ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] ----------------------------------------------------------------------------- 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) [ ] ----------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands ----------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 3,487,661 ---------------------------------------------------------- SHARES 8 SHARED VOTING POWER BENEFICIALLY OWNED BY -0- ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON 3,487,661 ---------------------------------------------------------- WITH 10 SHARED DISPOSITIVE POWER -0- ----------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,487,661 ----------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] ----------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 7.6% ----------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO ----------------------------------------------------------------------------- CUSIP NO. 137801106 SCHEDULE 13D/A PAGE 2 OF 8 PAGES ---------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS Black Diamond Offshore Ltd. ---------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] ----------------------------------------------------------------------------- 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) [ ] ----------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands ----------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 178,767 ---------------------------------------------------------- SHARES 8 SHARED VOTING POWER BENEFICIALLY OWNED BY -0- ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON 178,767 ---------------------------------------------------------- WITH 10 SHARED DISPOSITIVE POWER -0- ----------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 178,767 ----------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] ----------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.4% ----------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO ---------------------------------------------------------------------------- CUSIP NO. 137801106 SCHEDULE 13D/A PAGE 3 OF 8 PAGES ---------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS Black Diamond Relative Value Offshore Ltd. ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] ----------------------------------------------------------------------------- 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) [ ] ----------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands ----------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 1,706,783 ---------------------------------------------------------- SHARES 8 SHARED VOTING POWER BENEFICIALLY OWNED BY -0- ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON 1,706,783 ---------------------------------------------------------- WITH 10 SHARED DISPOSITIVE POWER -0- ----------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,706,783 ----------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] ----------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.7% ----------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO ---------------------------------------------------------------------------- CUSIP NO. 137801106 SCHEDULE 13D/A PAGE 4 OF 8 PAGES ----------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS Carlson Capital, L.P. ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) AF ----------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] ----------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ----------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 5,605,818 ---------------------------------------------------------- SHARES 8 SHARED VOTING POWER BENEFICIALLY OWNED BY -0- ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON 5,605,818 ---------------------------------------------------------- WITH 10 SHARED DISPOSITIVE POWER -0- ----------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,605,818 ----------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] ----------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 12.3% ---------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) PN -------------------------------------------------------------------------------- CUSIP NO. 137801106 SCHEDULE 13D/A PAGE 5 OF 8 PAGES -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS Asgard Investment Corp. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 5,605,818 ------------------------------------------------------------- SHARES 8 SHARED VOTING POWER BENEFICIALLY OWNED BY -0- ------------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON 5,605,818 ------------------------------------------------------------- WITH 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,605,818 -------------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 12.3% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO -------------------------------------------------------------------------------- CUSIP NO. 137801106 SCHEDULE 13D/A PAGE 6 OF 8 PAGES -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS Clint D. Carlson -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION USA -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 5,605,818 ------------------------------------------------------------- SHARES 8 SHARED VOTING POWER BENEFICIALLY OWNED BY -0- ------------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON 5,605,818 ------------------------------------------------------------- WITH 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,605,818 -------------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 12.3% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IN -------------------------------------------------------------------------------- CUSIP NO. 137801106 SCHEDULE 13D/A PAGE 7 OF 8 PAGES The Schedule 13D filed on August 25, 2008, as amended by Amendment No. 1 filed on September 9, 2008, Amendment No. 2 filed on September 25, 2008, Amendment No. 3 filed on October 8, 2008 and Amendment No. 4 filed on October 31, 2008 (the "Schedule 13D") by Double Black Diamond Offshore Ltd., a Cayman Islands exempted company, Black Diamond Offshore Ltd., a Cayman Islands exempted company, Black Diamond Relative Value Offshore Ltd., a Cayman Islands exempted company, Carlson Capital, L.P., a Delaware limited partnership, Asgard Investment Corp., a Delaware corporation and Clint D. Carlson (together, the "Reporting Persons"), relating to the shares ("Shares") of common stock, par value $0.0001 per share, of Cano Petroleum, Inc. (the "Issuer"), is hereby amended as set forth below by this Amendment No. 5 to the Schedule 13D. ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION. Item 3 of the Schedule 13D is hereby amended and restated as follows: The Shares reported herein were acquired at an aggregate purchase price of approximately $18,641,119 including commissions. The Shares were acquired with working capital of the Funds and the Account. ITEM 4. PURPOSE OF TRANSACTION. Item 4 of the Schedule 13D is hereby amended and supplemented as follows: On May 26, 2009, Steven J. Pully, an employee of Carlson Capital, L.P., was appointed to the Board of Directors of the Issuer. Mr. Pully's appointment was effective immediately. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER Paragraphs (a) and (b) of Item 5 of the Schedule 13D are hereby amended and restated as follows: (a) As of the close of business on May 29, 2009, the Reporting Persons beneficially owned an aggregate of 5,605,818 Shares, constituting approximately 12.3% of the Shares outstanding. The aggregate percentage of Shares beneficially owned by the Reporting Persons is based upon 45,643,735 Shares outstanding, which is the total number of Shares issued and outstanding as of May 8, 2009 as reported by the Issuer in its Annual Report on Form 10-Q for the quarter ended March 31, 2009, filed on May 11, 2009. (b) Carlson Capital, Asgard and Mr. Carlson have the power to vote and direct the disposition of (i) the 178,767 Shares reported herein as owned by Offshore Ltd., (ii) the 3,487,661 Shares reported herein as owned by Double Offshore Ltd., (iii) the 1,706,783 Shares reported herein as owned by Relative Value Offshore Ltd., and (iv) an additional 232,607 Shares held in the Account. CUSIP NO. 137801106 SCHEDULE 13D/A PAGE 8 OF 8 PAGES SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, the undersigned certifies that the information set forth in this statement is true, complete and correct. DATED: June 1, 2009 BLACK DIAMOND OFFSHORE LTD. By: Carlson Capital, L.P., its investment manager By: Asgard Investment Corp., its general partner By: /s/ Clint D. Carlson ------------------------------ Name: Clint D. Carlson Title: President DOUBLE BLACK DIAMOND OFFSHORE LTD. By: Carlson Capital, L.P., its investment manager By: Asgard Investment Corp., its general partner By: /s/ Clint D. Carlson ------------------------------ Name: Clint D. Carlson Title: President BLACK DIAMOND RELATIVE VALUE OFFSHORE LTD. By: Carlson Capital, L.P., its investment manager By: Asgard Investment Corp., its general partner By: /s/ Clint D. Carlson ------------------------------ Name: Clint D. Carlson Title: President CARLSON CAPITAL, L.P. By: Asgard Investment Corp., its general partner By: /s/ Clint D. Carlson ------------------------------ Name: Clint D. Carlson Title: President ASGARD INVESTMENT CORP. By: /s/ Clint D. Carlson ----------------------------------- Name: Clint D. Carlson Title: President /s/ Clint D. Carlson ----------------------------------- Clint D. Carlson