Ownership Submission
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 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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(Print or Type Responses)
1. Name and Address of Reporting Person *
KAM Fund Advisors LLC
  2. Issuer Name and Ticker or Trading Symbol
Willbros Group, Inc.\NEW\ [WG]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O KKR CREDIT ADVISORS (US) LLC, 555 CALIFORNIA STREET, 50TH FLOOR
3. Date of Earliest Transaction (Month/Day/Year)
06/01/2018
(Street)

SAN FRANCISCO, CA 94025
4. If Amendment, Date Original Filed(Month/Day/Year)
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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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, $0.05 par value 06/01/2018   J(1)   7,314,596 D $ 0.6 (2) 0 I See footnote (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)
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
KAM Fund Advisors LLC
C/O KKR CREDIT ADVISORS (US) LLC
555 CALIFORNIA STREET, 50TH FLOOR
SAN FRANCISCO, CA 94025
       

Signatures

 KAM Fund Advisors LLC /s/ Nicole J. Macarchuk, Name: Nicole J. Macarchuk, Title: Authorized Signatory   06/05/2018
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) On June 1, 2018, Primoris Services Corporation ("Parent"), acquired the Issuer pursuant to that certain Agreement and Plan of Merger entered into by and among the Issuer, Parent and Waco Acquisition Vehicle, Inc., a wholly-owned subsidiary of Parent ("Merger Sub"), dated as of March 27, 2018 (the "Merger Agreement"). In accordance with the Merger Agreement, Merger Sub merged with and into the Issuer, with the Issuer surviving such merger as a wholly-owned subsidiary of Parent (the "Merger").
(2) At the effective time of the Merger, each outstanding share of common stock, par value $0.05 per share, of the Issuer ("Common Stock") (other than certain excluded shares), automatically converted into the right to receive $0.60 per share in cash, without interest.
(3) Represents the aggregate number of shares of Common Stock held in investment funds for which KAM Fund Advisors LLC serves as an investment advisor. These shares are included as part of the 10,125,410 shares reported on a Form 4 filed on the date hereof by KKR Credit Advisors (US) LLC. KAM Fund Advisors LLC is a wholly-owned subsidiary of KKR Credit Advisors (US) LLC. KAM Fund Advisors LLC is filing a separate Form 4 due to a limitation on the number of reporting persons that can be included on the Form 4 filed by KKR Credit Advisors (US) LLC.
 
Remarks:
The 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, the Reporting Person is the beneficial owner of any equity securities covered by this statement.

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