FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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

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1. Name and Address of Reporting Person *   KKR Credit Advisors (US) LLC 2. Date of Event Requiring Statement (Month/Day/Year) 03/31/2015 3. Issuer Name and Ticker or Trading Symbol Willbros Group, Inc.\NEW\ [WG] (Last) (First) (Middle) 555 CALIFORNIA STREET, 50TH FLOOR,  4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) SAN FRANCISCO, CA 94104 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock, $0.05 par value 10,125,410 (1) I See footnotes (1) (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KKR Credit Advisors (US) LLC 555 CALIFORNIA STREET, 50TH FLOOR SAN FRANCISCO, CA 94104	Â	  X	Â	Â
Kohlberg Kravis Roberts & Co. L.P. 9 WEST 57TH STREET SUITE 4200 NEW YORK, NY 10019	Â	  X	Â	Â
KKR Management Holdings L.P. 9 WEST 57TH STREET 41ST FLOOR NEW YORK, NY 10019	Â	  X	Â	Â
KKR Management Holdings Corp 9 WEST 57TH STREET 41ST FLOOR NEW YORK, NY 10019	Â	  X	Â	Â
KKR Group Holdings L.P. 9 WEST 57TH STREET 41ST FLOOR NEW YORK, NY 10019	Â	  X	Â	Â
KKR Group Ltd 9 WEST 57TH STREET 41ST FLOOR NEW YORK, NY 10019	Â	  X	Â	Â
KKR & Co. L.P. 9 WEST 57TH STREET SUITE 4200 NEW YORK, NY 10019	Â	  X	Â	Â
KKR Management LLC 9 WEST 57TH STREET 41ST FLOOR NEW YORK, NY 10019	Â	  X	Â	Â
KRAVIS HENRY R C/O KOHLBERG KRAVIS ROBERTS & CO 9 WEST 57TH ST NEW YORK, NY 10019	Â	  X	Â	Â
ROBERTS GEORGE R 2800 SAND HILL ROAD MENLO PARK, CA 94025	Â	  X	Â	Â

Signatures

KKR CREDIT ADVISORS (US) LLC By: /s/ Nicole J. Macarchuk Name: Nicole J. Macarchuk Title: General Counsel		04/09/2015
**Signature of Reporting Person		Date
KOHLBERG KRAVIS ROBERTS & CO. L.P. By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact for William Janetschek, Chief Financial Officer		04/09/2015
**Signature of Reporting Person		Date
KKR MANAGEMENT HOLDINGS L.P. By: KKR Management Holdings Corp., its general partner By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer		04/09/2015
**Signature of Reporting Person		Date
KKR MANAGEMENT HOLDINGS CORP. By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer		04/09/2015
**Signature of Reporting Person		Date
KKR GROUP HOLDINGS L.P. By: KKR Group Limited, its general partner By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact for William J. Janetschek, Director		04/09/2015
**Signature of Reporting Person		Date
KKR GROUP LIMITED By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact for William J. Janetschek, Director		04/09/2015
**Signature of Reporting Person		Date
KKR & CO. L.P. By: KKR Management LLC, its general partner By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer		04/09/2015
**Signature of Reporting Person		Date
KKR MANAGEMENT LLC By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer		04/09/2015
**Signature of Reporting Person		Date
HENRY R. KRAVIS By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact		04/09/2015
**Signature of Reporting Person		Date
GEORGE R. ROBERTS By: /s/ Terence P. Gallagher Name: Terence P. Gallagher Title: Attorney-in-fact		04/09/2015
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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).
(1)	Represents the aggregate number of shares of common stock, par value $0.05 per share ("Common Stock"), of Willbros Group, Inc. held in investment funds for which KKR Credit Advisors (US) LLC ("KKR Credit") or any of its subsidiaries serves as an investment advisor.
(2)	Kohlberg Kravis Roberts & Co. L.P. is the holder of all of the outstanding equity interests in KKR Credit. KKR Management Holdings L.P. is the general partner of Kohlberg Kravis Roberts & Co. L.P, and KKR Management Holdings Corp. is the general partner of KKR Management Holdings L.P. KKR Group Holdings L.P. is the sole shareholder of KKR Management Holdings Corp., and KKR Group Limited is the general partner of KKR Group Holdings L.P. KKR & Co. L.P. is the sole shareholder of KKR Group Limited. KKR Management LLC is the general partner of KKR & Co. L.P. Messrs. Henry R. Kravis and George R. Roberts are the designated members of KKR Management LLC.
  Remarks: Each Reporting Person disclaims beneficial ownership of any securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein.  The filing of this statement shall not be deemed an admission that, for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise, any Reporting Person is the beneficial owner of any equity securities covered by this statement.  Exhibit List: Exhibit 24 - Powers of Attorney

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