Sec Form 4 Filing - BlueMountain Long/Short Credit & Distressed Reflection Fund, a sub fund of AAI BlueMountain Fund PLC @ DUNE ENERGY INC - 2015-04-22

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person BlueMountain Long/Short Credit & Distressed Reflection Fund, a sub fund of AAI BlueMountain Fund PLC 2. Issuer Name and Ticker or Trading Symbol DUNE ENERGY INC [ DUNR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 280 PARK AVENUE, 12TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 04/22/2015 (Street) NEW YORK, NY10017 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock ( 1 ) ( 2 ) 04/22/2015 S 243,510 D $ 0 0 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other BlueMountain Long/Short Credit & Distressed Reflection Fund, a sub fund of AAI BlueMountain Fund PLC 280 PARK AVENUE, 12TH FLOOR NEW YORK, NY10017 X Signatures BlueMountain Long/Short Credit & Distressed Reflection Fund, a sub fund of AAI BlueMountain Fund PLC, By: BlueMountain Capital Management, LLC, By: /s/ Paul Friedman, Chief Compliance Officer 04/24/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )BlueMountain Capital Management, LLC ("BMCM") is the investment manager of BlueMountain Long/Short Credit & Distressed Reflection Fund, a sub fund of AAI BlueMountain Fund plc ("AAI"), and in that capacity directs the voting and disposition of securities held by AAI and receives an asset-based and performance-based fee with respect to AAI's investment activities. The filing of this Form 4 shall not be construed as an admission that BMCM is or was for the purposes of Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise the beneficial owner of any of the shares of Common Stock, par value $0.001 per share (the "Common Stock"), of Dune Energy Inc. (the "Issuer"). Pursuant to Rule 16a-1(a)(4) of the Exchange Act, BMCM disclaims such beneficial ownership, except to the extent of its pecuniary interest. ( 2 )On April 22, 2015, AAI disposed of 243,510 shares of Common Stock, representing all of the Common Stock held by AAI, by transferring all of such shares to BlueMountain Guadalupe Peak Fund L.P., a private fund for which BMCM also acts as investment manager. Accordingly, BMCM's pecuniary interest in the Common Stock of the Issuer did not change.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.