QuickLinks -- Click here to rapidly navigate through this document

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT PURSUANT
TO SECTION 13 OR 15(D) OF THE
SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported)
April 1, 2010

Cano Petroleum, Inc.
(Exact Name of Registrant as Specified in Its Charter)

Delaware
(State or Other Jurisdiction of Incorporation)

001-32496

 

77-0635673
(Commission File Number)   (IRS Employer Identification No.)

801 Cherry Street, Suite 3200
Fort Worth, Texas

 

76102
(Address of Principal Executive Offices)   (Zip Code)

(817) 698-0900
(Registrant's Telephone Number, Including Area Code)

Not Applicable
(Former Name or Former Address, if Changed Since Last Report)

        Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

ý
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))


Item 1.01    Entry into a Material Definitive Agreement.

Amendment No. 2 to Agreement and Plan of Merger

        On April 1, 2010, Cano Petroleum, Inc. ("Cano"), Resaca Exploitation, Inc., a Texas corporation ("Resaca"), and Resaca Acquisition Sub, Inc., a Delaware corporation and wholly-owned subsidiary of Resaca ("Merger Sub"), entered into Amendment No. 2 to Agreement and Plan of Merger (the "Amendment"), which amends that certain Agreement and Plan of Merger, dated September 29, 2009, by and among Cano, Resaca and Merger Sub (as amended by that certain Amendment No. 1 to Agreement and Plan of Merger, dated February 25, 2010, by and among Cano, Resaca and Merger Sub, the "Merger Agreement") pursuant to which Merger Sub will merge with and into Cano (the "Merger").

        The Amendment extends the date on which either Cano or Resaca may terminate the Merger Agreement if the Merger has not become effective from April 30, 2010 to May 31, 2010, amends and restates Exhibit 5.2 to the Merger Agreement to, among other things, clarify the rights of holders of Resaca Series A Preferred Stock (the "Resaca Series A Preferred") with respect to issuances of securities by Resaca and amends and restates Section 7.13(b) of the Merger Agreement to provide that, for the one year period following closing of the Merger, Resaca's board committees shall consist of three or four directors (rather than four directors), with no less than two former Cano directors on each committee.

        The summary of the Amendment set forth in this Item 1.01 does not purport to be complete and is qualified by reference to such Amendment, which is filed herewith as Exhibit 10.1 and is incorporated herein by reference.

Amendment and Restatement of Securities Purchase Agreement and Registration Rights Agreement

        On April 5, 2010, Cano, Resaca and the holders of Resaca Series A Preferred entered into an investors rights agreement (the "Investors Rights Agreement"). The Investors Rights Agreement grants the holders of Resaca Series A Preferred substantially similar registration and other rights currently associated with the Cano Series D Preferred Stock (the "Cano Series D Preferred"). Upon the consummation of the Merger, the Investors Rights Agreement will transfer the rights and obligations of Cano under that certain Securities Purchase Agreement, dated August 25, 2006, by and among Cano and the holders of the Cano Series D Preferred filed as Exhibit 10.1 to Cano's Current Report on Form 8-K filed with the Securities and Exchange Commission (the "SEC") on August 30, 2006 (the "SPA") and that certain Registration Rights Agreement, dated August 25, 2006, by and among Cano and the holders of the Cano Series D Preferred filed as Exhibit 4.1 to Cano's Current Report on Form 8-K filed with the SEC on August 30, 2006 (the "Registration Rights Agreement") to Resaca and amends and restates the terms of the SPA and the Registration Rights Agreement. The Investors Rights Agreement shall not become effective until the closing of the Merger.

        Registration Rights.    The Investors Rights Agreement requires that Resaca will file a registration statement on Form S-1 (the "Registration Statement") with the SEC covering the resale of the Resaca common stock underlying the Resaca Series A Preferred within 45 days after the effective date of the Merger. If the Registration Statement is not filed with the SEC within such time, Resaca must pay 1.5% of the aggregate purchase price of the Resaca Series A Preferred (as defined in the Investors Rights Agreement) and an additional 1.5% for every 30 days the Registration Statement is not filed. If the Registration Statement is not declared effective by the SEC within 90 days of the effective date of the Merger, if there is not any review of the Registration Statement by the SEC, or within 120 days of the effective date of the Merger, if there is any review of the Registration Statement by the SEC, Resaca must pay 1.5% of the aggregate purchase price of the Resaca Series A Preferred (as defined in the Investors Rights Agreement) and an additional 1.5% for every 30 days it is not effective. In addition, subject to certain exceptions, Resaca is to maintain the effectiveness of the Registration Statement and if the effectiveness of the Registration Statement is not maintained, then Resaca must pay 1.5% of the aggregate purchase price of the Resaca Series A Preferred (as defined in the Investors Rights Agreement) and an additional 1.5% for every 30 days it is not maintained. The maximum



aggregate of all registration delay related payments is 10% of the aggregate purchase price of the Resaca Series A Preferred (as defined in the Investors Rights Agreement).

        Pledging of Resaca Series A Preferred.    Resaca Series A Preferred may be pledged by an investor in connection with a bona fide margin agreement or other loan or financing arrangement that is secured by the Resaca Series A Preferred. The pledge of Resaca Series A Preferred shall not be deemed to be a transfer, sale, or assignment of such stock.

        Additional Registration Statements.    Except for registration statements filed in connection with the Merger or the proposed offering to be consummated concurrently with the Merger (the "Offering"), until the effective date, Resaca shall not file a registration statement under the Securities Act relating to securities that are not the Resaca Series A Preferred.

        Corporate Existence.    So long as any Resaca Series A Preferred is owned, Resaca shall not be party to any Fundamental Transaction (as defined in the Resaca Preferred Stock Certificate of Designations) unless Resaca is in compliance with the applicable provisions governing Fundamental Transactions set forth in the form of a Certificate of Designations, Preferences and Rights of Series A Convertible Preferred Stock (the "Resaca Preferred Stock Certificate of Designations").

        Reservation of Shares of Common Stock.    Resaca shall take all action necessary to at all times have authorized, and reserved for the purpose of issuance, no less than 130% of the maximum number of shares of Resaca common stock issuable upon conversion of the Resaca Series A Preferred.

        Additional Issuances of Resaca Equity.    Until no Resaca Series A Preferred remains outstanding, Resaca will not, directly or indirectly, offer, sell, grant any option to purchase, or otherwise dispose of (or announce any offer, sale, grant or any option to purchase or other disposition of) any of its or its subsidiaries' equity or equity equivalent securities, at any time during its life and under any circumstances, convertible into or exchangeable or exercisable for shares of Resaca common stock or Resaca common stock equivalents (a "subsequent placement") unless Resaca shall have, among other things, completed the following:


        Notwithstanding the foregoing, the foregoing preemptive rights of the holders of the Resaca Series A Preferred do not extend to issuances of excluded securities (as defined in the Investors Rights Agreement) or the issuance of Resaca common stock in the Offering, regardless of whether the Offering occurs before, simultaneously with or after the Merger.

        The summary of the Investors Rights Agreement set forth in this Item 1.01 does not purport to be complete and is qualified by reference to such agreement, which is filed herewith as Exhibit 10.2 and is incorporated herein by reference.

Item 3.03    Material Modification to Rights of Security Holders.

        See Item 1.01 Entry into a Material Definitive Agreement—"Amendment and Restatement of Securities Purchase Agreement and Registration Rights Agreement" for a discussion of the Investors Rights Agreement.

Additional Information and Where to Find It

        This communication is being made in respect of the proposed business combination involving Resaca and Cano. In connection with the proposed transaction, Resaca and Cano (a) filed documents with the SEC, including the filing by Resaca of a Registration Statement on Form S-4 containing a Joint Proxy Statement/Prospectus, (b) plan to publish an admission document for the purpose of admitting the issued common stock of the enlarged group to trading on the AIM market of the London Stock Exchange (the "AIM") and (c) plan to file with the AIM and the SEC other necessary documents regarding the proposed transaction. Investors and security holders of Resaca and Cano are



urged to carefully read the Joint Proxy Statement/Prospectus and AIM admission document (when available) and other documents filed with AIM and the SEC by Resaca and Cano because they contain important information about the proposed transaction. Investors and security holders may obtain free copies of these documents (when they are available) and other documents filed with the SEC by contacting Resaca Investor Relations at (713) 753-1441 or Cano Investor Relations at (817) 698-0900. Investors and security holders may obtain free copies of the documents filed with the SEC and published in connection with the admission to the AIM on Resaca's website at www.resacaexploitation.com or Cano's website at www.canopetro.com. Information filed with the SEC will be available on the SEC's website at www.sec.gov. Resaca, Cano and their respective directors and executive officers may be deemed participants in the solicitation of proxies with respect to the proposed transaction. Information regarding the interests of these directors and executive officers in the proposed transaction will be included in the Joint Proxy Statement/Prospectus and the AIM admission document described above. Additional information regarding the directors and executive officers of Resaca is also included in Resaca's website. Additional information regarding Cano is available under its periodic reports which are filed with the SEC.

Item 9.01    Financial Statements and Exhibits.

    10.1   Amendment No. 2 to Agreement and Plan of Merger, dated April 1, 2010, by and among Resaca, Cano and Merger Sub.

 

 

10.2

 

Investors Rights Agreement, dated April 5, 2010, by and among Resaca, Cano and the holders of Resaca preferred stock.


SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

  CANO PETROLEUM, INC.

Date: April 6, 2010

       

 

By:

 

/s/ BENJAMIN DAITCH


Benjamin Daitch
Senior Vice President and Chief Financial Officer

EXHIBIT INDEX

Exhibit
Number
  Description
10.1   Amendment No. 2 to Agreement and Plan of Merger, dated April 1, 2010, by and among Resaca, Cano and Merger Sub.

10.2

 

Investors Rights Agreement, dated April 5, 2010, by and among Resaca, Cano and the holders of Resaca preferred stock.



QuickLinks

SIGNATURES