Document:

EX-10.1

 Exhibit 10.1 

FIRST AMENDMENT dated as of March 31, 2015 (this “First Amendment”), to the Credit Agreement dated as of
December 15, 2014 (as it may be further amended, amended and restated, supplemented or otherwise modified from time to time, the “Credit Agreement”), among Willbros Group, Inc., a Delaware corporation (the
“Borrower”), the Guarantors from time to time party thereto, the Lenders from time to time party thereto, KKR Credit Advisors (US) LLC, as Arranger (the “Arranger”), and JPMorgan Chase Bank, N.A., as Administrative
Agent (in such capacity, the “Administrative Agent”). 
 WHEREAS, the Loan Parties, the Administrative Agent and the
Lenders are parties to the Credit Agreement, pursuant to which the Lenders made Tranche B Loans to the Borrower. 
 WHEREAS, the Borrower
has requested that the testing of the financial covenants set forth in Sections 6.15 and 6.16 of the Credit Agreement be suspended during the Covenant Test Suspension Period (as defined herein). 

WHEREAS, pursuant to, and in compliance with the requirements of, Section 10.01 of the Credit Agreement, the Lenders party hereto,
which constitute at least the Majority Lenders, are willing to agree to such request, in each case on the terms and subject to the conditions set forth herein. 

WHEREAS, as a condition to the effectiveness of this First Amendment, the Borrower and the Lenders have entered into the Subscription
Agreement (as defined herein) and the other Equity Documents (as defined herein), pursuant to which the Lenders shall have the option to acquire and the Borrower shall issue certain Equity Interests to the Lenders on the terms set forth therein.

 NOW, THEREFORE, in consideration of the premises and mutual covenants contained herein, the parties hereto agree as follows: 

SECTION 1. Defined Terms. Capitalized terms used but not defined herein (including the recitals hereto) shall have the meanings
assigned to such terms in the Credit Agreement. 
 SECTION 2. Amendments to Credit Agreement. As of the First Amendment
Effective Date (as defined below), the Credit Agreement is hereby amended as follows: 
 (a) Section 1.01 of the Credit
Agreement is hereby amended by adding the following defined terms in appropriate alphabetical order: 

““Borrower Board” means the Board of Directors of the Borrower.” 

 ““Covenant Test Suspension Period” means the fiscal
quarters ending December 31, 2014, March 31, 2015, June 30, 2015, September 30, 2015, December 31, 2015 and March 31, 2016.” 

““Equity Documents” means the Subscription Agreement and the Registration Rights Agreement.” 

““First Amendment” means the First Amendment dated as of March 31, 2015, to this Agreement. 

““First Amendment Effective Date” means March 31, 2015.” 

““Lender Designee” has the meaning set forth in Section 5.15(b).” 

““New Loan” has the meaning set forth in Section 2.19(c).” 

““Old Loan” has the meaning set forth in Section 2.19(c).” 

““Observer” has the meaning set forth in Section 5.15(a).” 

““Prepayment Premium” has the meaning set forth in Section 2.06(f)(iii).” 

““Registration Rights Agreement” means the Registration Rights Agreement dated as of the First Amendment
Effective Date, by and among the Borrower, KKR Credit Advisors (US) LLC, and the Stockholders (as defined therein) from time to time party thereto.” 

““Subscription Agreement” means the Subscription Agreement dated as of the First Amendment Effective
Date, by and among the Borrower and the Subscribers (as defined therein) party thereto.” 
 (b) Section 1.01 of the Credit
Agreement is hereby amended by adding the following to the end of the first sentence of the definition of “Affiliate”: 
 “;
provided further that none of KKR Credit Advisors (US) LLC or any of its Affiliates (including any Fund that is administered or managed by KKR Credit Advisors (US) LLC or any of its Affiliates or any entity or Affiliate of an entity
that administers or manages KKR Credit Advisors (US) LLC) shall be deemed to be an “Affiliate” of the Borrower or any of its Subsidiaries.” 

(c) Section 1.01 of the Credit Agreement is hereby amended by adding the following to the end of clause (a) of the definition
of “Permitted ABL Debt”: 
 “; provided that the definition of “Borrowing Base” (including any related or
incorporated definitions) set forth in such revolving facility is not amended to increase borrowing availability thereunder compared to the definition of 

  
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“Borrowing Base” in the ABL Credit Agreement as in effect on the First Amendment Effective Date (it being understood that the foregoing shall not limit modifications of reserves or
other discretionary actions of the “Agent” (as defined in the ABL Credit Agreement) or any other ABL Representative if taken pursuant to provisions not materially more favorable to the Borrower and the Subsidiaries than the applicable
provisions set forth in the ABL Credit Agreement as in effect on the First Amendment Effective Date), all as determined by the Board of Directors, notice of which determination shall be provided to the Administrative Agent and shall be conclusive
unless the Administrative Agent provides notice to the Borrower of its disagreement within five (5) Business Days following receipt of such notice),”. 

(d) Clause (f) of Section 2.06 of the Credit Agreement is hereby amended by adding the following paragraph as a new
clause (f)(iii), immediately following clause (f)(ii) thereof: 
 “Without limiting the generality of the foregoing and notwithstanding
anything to the contrary in this Agreement or any other Loan Document, it is understood and agreed that if the Obligations are accelerated as a result of the occurrence and continuance of any Event of Default (including by operation of law or
otherwise), the prepayment premium or fee set forth in clause (f)(i) above (the “Prepayment Premium”), if any, determined as of the date of acceleration, will also be due and payable and will be treated and deemed as though the
Tranche B Loans were prepaid as of such date and shall constitute part of the Obligations for all purposes herein. Any Prepayment Premium payable in accordance with the immediately preceding sentence shall be presumed to be the liquidated damages
sustained by each Lender as the result of the early termination, and the Borrower agrees that it is reasonable under the circumstances currently existing. The Prepayment Premium, if any, shall also be payable in the event the Obligations (and/or
this Agreement or the Notes evidencing the Obligations) are satisfied or released by foreclosure (whether by power of judicial proceeding), deed in lieu of foreclosure or by any other means. THE BORROWER EXPRESSLY WAIVES THE PROVISIONS OF ANY
PRESENT OR FUTURE STATUTE OR LAW THAT PROHIBITS OR MAY PROHIBIT THE COLLECTION OF THE FOREGOING PREPAYMENT PREMIUM IN CONNECTION WITH ANY SUCH ACCELERATION. The Borrower expressly agrees that (A) the Prepayment Premium is reasonable and is the
product of an arm’s length transaction between sophisticated business people, ably represented by counsel, (B) the Prepayment Premium shall be payable notwithstanding the then prevailing market rates at the time payment is made,
(C) there has been a course of conduct between Lenders and the Borrower giving specific consideration in this transaction for such agreement to pay the Prepayment Premium, and (D) the Borrower shall be estopped hereafter from claiming
differently than as agreed to in this Section 2.06(f)(iii). The Borrower expressly acknowledges that its agreement to pay the Prepayment Premium to Lenders as herein described is a material inducement to Lenders to provide the
Commitments and make the Loans.” 

  
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 (e) Clause (c) of Section 2.07 of the Credit Agreement is hereby amended
and restated in its entirety as follows: 
 “Default Interest. Notwithstanding the foregoing, if any principal of or interest on
any Loan or any fee or other amount payable by the Borrower hereunder is not paid when due, whether at stated maturity, upon acceleration or otherwise, the outstanding Obligations shall bear interest, after as well as before judgment, at a rate per
annum equal to (i) in the case of principal balance of any Loan, 2% per annum plus the rate otherwise applicable to such Loan as provided in the preceding paragraphs of this Section 2.07 or (ii) in the case of any other
amount, 2% per annum plus the rate applicable to Base Rate Loans as provided in Section 2.07(a)(i).” 

(f) Clause (c) of Section 2.19 of the Credit Agreement is hereby relettered as a new clause (d), and a new clause
(c) of Section 2.19 of the Credit Agreement is hereby added as follows: 
 “(c) The Borrower, the
Administrative Agent and the Lenders agree to treat (i) the issuance of Equity Interests pursuant to the Subscription Agreement, the value of which will be calculated by reference to the closing price of such Equity Interests on the Closing
Date (as defined in the Subscription Agreement), taking into account the 19.9% dilution that results from such issuance, as a “positive adjustment” (within the meaning of Regulations Section 1.1275-4) to the projected payment schedule
of the Old Loan described in Section 2.19(b) and otherwise as interest for all relevant U.S. federal income tax purposes; (ii) the First Amendment as being a “significant modification” of the Tranche B Loans within the
meaning of Regulations Section 1.1001-3(e), and thus for U.S. federal income tax purposes resulting in a deemed exchange of the existing Tranche B Loans (collectively, the “Old Loan”) for a new debt instrument (the “New
Loan”); and (iii) the New Loan as a contingent payment debt instrument governed by the rules set forth in Regulations Section 1.1275-4, for which the Borrower shall provide the Lenders with a schedule setting forth the comparable
yield and projected payment schedule for the New Loan within 15 days after the First Amendment Effective Date; provided that such schedule shall be subject to the Lenders’ review and comments, such comments to be provided to the Borrower
within 15 days of the receipt of the schedule. The Borrower and the Lenders shall discuss in good faith any Lender comments and seek to agree on a binding projected payment schedule; provided, however, that if the Borrower and the
Lenders are unable to agree within 30 days of the Borrower’s receipt of the Lenders’ comments, each party shall be entitled to proceed with its tax reporting obligations as contemplated by the applicable Regulations.” 

  
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 (g) Article V of the Credit Agreement is hereby amended by adding the following as
new Section 5.15, immediately following Section 5.14 therein: 
 “5.15. Board Observation
Rights and Board Representation. 
 (a) Subject to Section 5.15(c) and only so long as no Lender Designee is
a member of the Borrower Board, upon prior written notice from the Majority Lenders to the Borrower, the Majority Lenders may designate one representative acceptable (such acceptance not to be unreasonably withheld, conditioned or delayed) to the
Nominating/Corporate Governance Committee of the Borrower Board (an “Observer”) to attend and observe (but not vote) at all meetings of the Borrower Board and any committee thereof, whether in person, by telephone or otherwise;
provided that (i) the attendance of the Observer shall not be required for determining the existence of a quorum and (ii) the Observer shall, and the Lenders shall cause the Observer to, maintain as confidential all information
provided to it by or on behalf of the Borrower and the Subsidiaries and all discussions at any meeting of, or with any member of, the Borrower Board or any committee thereof, in each case in the Observer’s capacity as such (and such information
and discussions shall be deemed to be Information for all purposes hereof), and, upon request of the Borrower, the Observer shall execute a confidentiality agreement in form and substance reasonably satisfactory to the Observer and the Borrower (it
being understood that such agreement shall permit disclosure of any such information and discussions to the Administrative Agent and the Lenders, subject to their obligations under Section 10.07, and contain other customary exclusions).
The Borrower shall notify the Observer (at the same time as such notice is given to the members of the Borrower Board or the applicable committee thereof) in writing (which may be by e-mail) of (A) the date and time for each general or special
meeting of the Borrower Board or any committee thereof (and any Board or similar governing body of any Subsidiary if the Observer so requests) and (B) the adoption of any resolutions or actions by written consent. The Borrower shall deliver
(which may be by e-mail) to the Observer (at the same time as such materials are delivered to the members of the Borrower Board or the applicable committee thereof) any materials delivered to the members of the Borrower Board or any committee
thereof (and any Board or similar governing body of any Subsidiary if the Observer so requests), including a draft of any resolutions or actions proposed to be adopted by written consent, and prior to such meeting or adoption by consent the Observer
may contact members of the Borrower Board or any committee thereof (and any Board or similar governing body of any Subsidiary if the Observer so requests) and discuss the pending actions to be taken. The Observer may be excluded from any portion of
any meeting, and materials provided to the Observer in connection with any meeting may be redacted, to the extent that the Borrower Board or any committee thereof reasonably determines that (x) such exclusion or redaction is reasonably
necessary to preserve the attorney-client privilege or the attorney work product privilege, (y) a conflict of interest would arise as a result of the Observer attending such portion of such meeting or receiving such materials and
(z) information being discussed at such meeting (or receipt of materials related to such meeting) relates to the Borrower’s or any of its Subsidiaries’ strategy, negotiating position or other matters relating to this Agreement or any
other Loan 

  
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Documents, the ABL Credit Agreement or any other ABL Documents or, in each case, any permitted refinancings thereof. The Borrower shall pay the Observer’s reasonable and documented out of
pocket expenses (including the reasonable cost of airfare, meals and lodging) in connection with the Observer’s in-person attendance at such meetings. 

(b) Subject to Section 5.15(c), upon prior written notice from the Majority Lenders to the Borrower and the
Borrower Board and any committee thereof, as applicable, shall take all appropriate action under the Borrower’s Organizational Documents to expand the Borrower Board by one (1) board seat (unless there shall be an existing vacancy on the
Borrower Board), and to fill such new or existing vacancy with a designee nominated by the Majority Lenders who is acceptable (such acceptance not to be unreasonably withheld, conditioned or delayed) to the Nominating/Corporate Governance Committee
of the Borrower Board (the “Lender Designee”). In the event the Lender Designee is required to submit his or her resignation to the Chairman of the Borrower Board for consideration by the Nominating/Corporate Governance Committee
pursuant to the Borrower Board’s policy on majority voting, the Nominating/Corporate Governance Committee makes a recommendation to the Borrower Board concerning the acceptance or rejection of such resignation and the Borrower Board determines
to accept the Lender Designee’s resignation, then (i) the Borrower Board shall not reduce the size of the Borrower Board to eliminate the vacancy created thereby, (ii) the Majority Lenders shall have the right to nominate a
replacement Lender Designee, who must meet the requirements set forth above, and (iii) upon such nomination, the Borrower and the Borrower Board and any committee thereof, as applicable, shall take all appropriate action under the
Borrower’s Organizational Documents to fill the vacancy created thereby with such replacement Lender Designee. 
 (c)
Notwithstanding anything in Sections 5.15(a) and 5.15(b) to the contrary, if KKR Credit Advisors (US) LLC and its Affiliates (including any Fund that is administered or managed by KKR Credit Advisors (US) LLC or any of its
Affiliates or any entity or Affiliate of an entity that administers or manages KKR Credit Advisors (US) LLC) cease, in the aggregate, to beneficially own a number of shares of the Borrower’s common stock at least equal to five percent
(5%) of all such shares then outstanding, (i) the right to designate and maintain the Observer set forth in Section 5.15(a) shall immediately terminate and (ii) the Lender Designee, if any, shall promptly resign from the
Borrower Board and the right of the Majority Lenders to designate and maintain the Lender Designee under Section 5.15(b) shall terminate. 

(h) Article VI of the Credit Agreement is hereby amended by adding the following section as new Section 6.19,
immediately following Section 6.18 therein: 
 “6.19. Suspension of Testing of Financial Covenants During
the Covenant Test Suspension Period. Notwithstanding anything in Sections 6.15 and 6.16 to the contrary, solely during the Covenant Test Suspension Period, the Interest Coverage Ratio and the

  
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Total Leverage Ratio shall not be tested to determine compliance with Section 6.15 or 6.16, respectively, and any failure by the Loan Parties to comply with the Interest
Coverage Ratio and Total Leverage Ratio as set forth in such applicable sections during the Covenant Test Suspension Period shall not be deemed to be or result in a Default or an Event of Default; provided that the financial covenants set
forth in Sections 6.15 and 6.16 shall be applicable for all other purposes tested or referenced under this Agreement as if in effect during the Covenant Test Suspension Period.” 

(i) Clause (m) of Section 6.02 of the Credit Agreement is hereby amended and restated in its entirety as follows: 

“Permitted ABL Debt in an aggregate principal amount not to exceed $200,000,000 at any time outstanding; provided that at any time
no more than $25,000,000 of such Debt outstanding may be the primary obligation (as borrower or account party) of Subsidiaries that are not Loan Parties; and”. 

(j) Subclause (ii) of clause (h) of Section 6.05 of the Credit Agreement is hereby amended and restated in its
entirety as follows: 
 “(ii) the cash consideration (other than Permitted Consideration Payments) paid in connection with all such
Acquisitions does not exceed $10,000,000 in the aggregate since the Closing Date;”. 
 (k) Clause (l) of
Section 6.05 of the Credit Agreement is hereby amended and restated in its entirety as follows: 
 “(l) other Investments
and other Acquisitions; provided that (i) the aggregate outstanding amount of Investments made in reliance on this clause (l), together with, without duplication, the aggregate amount of consideration paid in connection with all other
Acquisitions made in reliance on this clause (l), in each case in any fiscal year shall not exceed $10,000,000 and (ii) the aggregate amount of Investments made in reliance on this clause (l) outstanding at any time, together with, without
duplication, the aggregate amount of consideration paid in connection with all other Acquisitions made in reliance on this clause (l), shall not exceed $10,000,000 at any time outstanding; and”. 

(l) Section 10.06(b)(iii)(A) of the Credit Agreement is hereby amended by deleting the phrase “under
Section 7.01(a) or 7.01(e)” where it appears therein. 
 (m) The Credit Agreement is hereby further amended by
deleting the words “Required Lenders” and replacing them with “Majority Lenders” everywhere such words appear in Sections 1.01 and 10.20 of the Credit Agreement (and any references to such Sections). 

  
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 (n) Article X of the Credit Agreement is hereby further amended by adding the
following Section 10.22 at the end of such Article: 
 “10.22 Not Publically Traded For Certain Period
after First Amendment Effective Date. Each Credit Party (a) represents and warrants as of the First Amendment Effective Date that none of the Credit Parties nor any of its Affiliates (including KKR Credit Advisors (US) LLC and each of its
Affiliates), including any Fund that is administered or managed by any Lender or any of its Affiliates or any entity or Affiliate of an entity that administers or manages such Lender or any of its Affiliates (including KKR Credit Advisors (US) LLC),
has any plan or intention to take an action that could reasonably be expected to, and (b) shall not, and shall cause each of its Affiliates (including KKR Credit Advisors (US) LLC and each of its Affiliates), including any Fund that is
administered or managed by any Lender or any of its Affiliates or any entity or Affiliate of an entity that administers or manages such Lender or any of its Affiliates (including KKR Credit Advisors (US) LLC), not to, take any action that would,
directly or indirectly, in each case, result in the Tranche B Loans being treated as traded on an established market within the meaning of Treasury Regulations Section 1.1273-2(f) at any time during the 31-day period ending 15 days after the
First Amendment Effective Date.” 
 SECTION 3. Conditions to Effectiveness of First Amendment. This First Amendment shall
become effective on the first date (the “First Amendment Effective Date”) on which: 
 (a) The Arranger and the
Lenders shall have the reasonable opportunity to review and comment on all public filings or announcements (collectively, the “Required Disclosures”) to be made in connection with this First Amendment and the Equity Documents by the
Borrower with the SEC or any other Governmental Authority as required under applicable laws, including Federal and state securities laws; 

(b) The Arranger and the Administrative Agent (or their respective counsels) shall have received duly executed counterparts hereof that,
when taken together, bear the signatures of the Borrower and Lenders representing the Majority Lenders; 
 (c) The Arranger and the
Administrative Agent (or their respective counsels) shall have received duly executed copies of the Subscription Agreement and all other Equity Documents; 

(d) The Arranger and the Administrative Agent (or their respective counsels) shall have received certificates from the appropriate
Governmental Authority certifying as to the good standing, existence and authority of each Loan Party in the jurisdiction of its incorporation or formation; and 

(e) The Arranger and the Administrative Agent (or their respective counsels) shall have received a certificate dated the First Amendment
Effective Date from a Responsible Officer of the Borrower certifying that: 
 (i) The Borrower and its Subsidiaries,
taken as a whole, after giving effect to this First Amendment, are Solvent as of the First Amendment Effective Date; 

  
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 (ii) No Default or Event of Default has occurred and is continuing as of the
First Amendment Effective Date; 
 (iii) All representations and warranties of the Loan Parties set forth in
Article IV of the Credit Agreement are true and correct as of the First Amendment Effective Date in all material respects (except that to the extent any representation and warranty is qualified as to “Material Adverse Effect” or
otherwise as to “materiality”, such representation and warranty shall be true and correct in all respects as of the First Amendment Effective Date), except to the extent that any such representation and warranty relates solely to an
earlier date, in which case such representation and warranty was true and correct in all material respects (except that to the extent any representation and warranty is qualified as to “Material Adverse Effect” or otherwise as to
“materiality”, such representation and warranty was true and correct in all respects) as of such earlier date; and 

(iv) The Organizational Documents of each Loan Party, including all amendments thereto, delivered to the Administrative
Agent on December 15, 2014, pursuant to the Credit Agreement remain in full force and effect as of the First Amendment Effective Date and have not been amended, waived or supplemented since such date and to the First Amendment Effective
Date. 
 SECTION 4. Post Amendment Covenant. On or before March 31, 2015, (a) the Administrative Agent and the
Arranger shall have received a report and opinion of PricewaterhouseCoopers LLP in connection with the audited annual financial statements of the Borrower required pursuant to Section 5.06(a) of the Credit Agreement for the fiscal year
ending December 31, 2014, and such report and opinion shall not be subject to any “going concern” or like qualification or exception or any qualification or exception as to the scope of such audit, and (b) the Borrower shall have
publicly filed with the SEC the Borrower’s Annual Report on Form 10-K with respect to the fiscal year ending December 31, 2014; provided that, failure by the Borrower to comply with this Section 4 shall be an immediate Event of
Default under the Credit Agreement. 
 SECTION 5. Representations and Warranties. Each Loan Party represents and warrants as of
the First Amendment Effective Date as follows: 
 (a) Authority Etc. Each of the Loan Parties has the requisite organizational
power and authority to execute, deliver and perform this First Amendment. The execution, delivery and performance by each Loan Party of this First Amendment (a) have been duly authorized by all necessary organizational action on the part of
such Loan Party, (b) do not and will not (i) contravene the terms of such Loan Party’s Organizational Documents, (ii) violate any Legal Requirement or (iii) conflict with or result in any breach or contravention of, or the
creation of any Lien (other than any Lien created under the Loan Documents and liens created under the ABL Documents) under, (A) the provisions of any indenture, instrument or agreement to which such Loan Party is a party or by which it or its
property is bound or (B) any order injunction, writ or decree of any Governmental Authority or any arbitral award to which such Loan Party or its property is subject, except, in the case of clauses (b)(ii) and (b)(iii) above, the extent any of
the foregoing could not, individually or in the aggregate, reasonably be expected to 

  
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have a Material Adverse Effect. No authorization, approval, consent, exemption or other action by, or notice to or filing with, and Governmental Authority is necessary or required on the part of
any Loan Party in connection with the execution, delivery and performance by any Loan Party of this First Amendment, except (I) as such have been obtained or made and are in full force and effect, and (II) actions by, and notices to or
filings with, Governmental Authorities (including the SEC) that may be required in the ordinary course of business from time to time or that may be required to comply with the express requirements of the Loan Documents. 

(b) Enforceability. This First Amendment has been duly executed and delivered by each Loan Party. This First Amendment constitutes
a legal, valid and binding obligation of each Loan Party, enforceable against such Loan Party in accordance with its terms, except as such enforceability may be limited by any applicable bankruptcy, insolvency, reorganization, fraudulent conveyance,
moratorium or similar law affecting creditors’ rights generally or general principles of equity. 
 (c) Representations and
Warranties. After giving effect to this Amendment, the representations and warranties contained in each Loan Document are true and correct in all material respects (except that such materiality qualifier shall be not applicable to any
representations and warranties that already are qualified or modified by the materiality in the text thereof) on and as of the date hereof, as though made on and as of the date hereof (except to the extent that such representations and warranties
relate solely to an earlier date, in which case, such representations and warranties shall be true and correct in all material respects (except that such materiality qualifier shall not be applicable to any representations and warranties that
already are qualified or modified by materiality in the text thereof) as of such earlier date). 
 (d) No Default. No Default or
Event of Default has occurred and is continuing as of the date hereof. 
 SECTION 6. Reaffirmation and Ratification. The Loan
Parties hereby: 
 (a) acknowledge and agree that the Liens and security interests created under the Security Agreement and the other
Security Documents in favor of the Administrative Agent for the benefit of the Lenders and securing payment of all “Obligations” (including, without limitation, all prior loans or advances made to the Borrower by the Lenders) outstanding
pursuant to the Credit Agreement shall remain in full force and effect with respect to the Obligations and are hereby and thereby reaffirmed, 

(b) acknowledge and reaffirm their respective obligations as set forth in each Loan Document (as amended or otherwise modified by this
First Amendment), including, without limitations, all Obligations under the Credit Agreement and the other Loan Documents as amended or otherwise modified by this First Amendment), 

(c) agree to continue to comply with, and be subject to, all of the terms, provisions, conditions, covenants, agreements and obligations
applicable to them set forth in each Loan Document (as amended or otherwise modified by this First Amendment), which remain in full force and effect, and 

  
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 (d) confirm, ratify and reaffirm that (i) the guarantees and indemnities given by them
pursuant to the Credit Agreement and/or any other Loan Documents continue in full force and effect, following and notwithstanding the amendments thereto pursuant to this First Amendment, and (ii) the security interest granted to Administrative
Agent, for the benefit of the Lenders, pursuant to the Loan Documents in all of their right, title, and interest in all then existing and thereafter acquired or arising Collateral in order to secure prompt payment and performance of the Obligations,
is continuing and is and shall remain unimpaired and continue to constitute a first priority security interest (subject to Permitted Liens) in favor of the Administrative Agent, for the benefit of the Lenders, with the same force, effect and
priority in effect immediately prior to entering into this First Amendment. 
 SECTION 7. Release. Each Loan Party hereby
remises, releases, acquits, satisfies and forever discharges the Arranger, the Administrative Agent, the Lenders and their respective agents, employees, officers, directors, predecessors, attorneys and all others acting or purporting to act on
behalf of or at the direction of the Arranger, the Administrative Agent or the Lenders (“Releasees”), of and from any and all manner of actions, causes of action, suits, damages, claims and demands, in each case, that as of the date
hereof are known or reasonably should be known to such Loan Party, in law or in equity, which such Loan Party ever had, now has or, to the extent arising from or in connection with any act, omission or state of facts taken or existing on or prior to
the date hereof, may have after the date hereof against the Releasees, for, upon or by reason of any matter, cause or thing whatsoever through the date hereof (it being understood that nothing in this sentence shall release or otherwise affect the
covenants of the Releasees under the Credit Agreement and the other Loan Documents, in each case, after the First Amendment Effective Date). Without limiting the generality of the foregoing, each Loan Party hereby waives and affirmatively agrees not
to allege or otherwise pursue any actions, causes of action, suits, damages, claims and demands that it shall or may have as of the date hereof against any Releasees in connection with the Credit Agreement or the other Loan Documents, including, but
not limited to, the rights to contest (i) the right of the Arranger, the Administrative Agent and each Lender to exercise its rights and remedies described in the Credit Agreement, (ii) any provision of the Credit Agreement or the other
Loan Documents or (iii) any conduct of the Arranger, the Administrative Agent, the Lenders or other Releasees relating to or arising out of the Credit Agreement or the other Loan Documents on or prior to the date hereof. 

SECTION 8. Estoppel. To induce the Arranger, the Administrative Agent and the Lenders to enter into this First Amendment, each
Loan Party hereby acknowledges and agrees that, after giving effect to this First Amendment, as of the date hereof, to the knowledge of any Loan Party, there exists no right of offset, defense, counterclaim or objection in favor of any Loan Party as
against the Arranger, the Administrative Agent or any Lender with respect to the Obligations. 
 SECTION 9. Effects on Loan
Documents. Except as specifically amended herein, all provisions of the Credit Agreement and the other Loan Documents shall continue to be in full force and effect and are hereby in all respects ratified and confirmed. Except as otherwise
expressly provided herein, the execution, delivery and effectiveness of this First Amendment shall not operate as a waiver of any right, power or remedy of any Lender, the Arranger or the Administrative Agent under any of the Loan Documents or
constitute a waiver or consent of any provision of the Loan Documents or to any further or future action on the part of the Loan Parties that would require a waiver or consent of the Majority Lenders or the Administrative Agent. 

  
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 SECTION 10. GOVERNING LAW; WAIVER OF JURY TRIAL. THIS FIRST AMENDMENT AND THE RIGHTS
AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND BE GOVERNED BY THE LAW OF THE STATE OF NEW YORK. EACH PARTY HERETO HEREBY AGREES AS SET FORTH FURTHER IN SECTION 10.13 OF THE CREDIT AGREEMENT AS IF SUCH
SECTION WAS SET FORTH IN FULL HEREIN, MUTATIS MUTANDIS. 
 SECTION 11. Loan Document. This First Amendment shall
constitute a “Loan Document” for all purposes of the Credit Agreement and the other Loan Documents. From and after the First Amendment Effective Date, the terms “Agreement”, “this Agreement”, “herein”,
“hereafter”, “hereto”, “hereof” and words of similar import, as used in the Credit Agreement and the other Loan Documents, shall refer to the Credit Agreement as amended hereby. 

SECTION 12. Execution in Counterparts. This First Amendment may be executed in counterparts (and by different parties hereto in
different counterparts), including by means of facsimile or electronic transmission, each of which when so executed and delivered shall be an original, but all of which shall together constitute one and the same instrument. 

[signature pages to follow] 

  
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 IN WITNESS WHEREOF, the parties hereto have caused this First Amendment to be duly executed and
delivered by their respective proper and duly authorized officers as of the day and year first above written. 
  

			
	WILLBROS GROUP, INC.
		
	By:		 /s/ Richard W. Russler

	Name:		Richard W. Russler
	Title:		Treasurer

 Signature Page to First Amendment 

 
			
	JPMORGAN CHASE BANK, N.A., as Administrative Agent
		
	By:		 /s/ Stephanie Dickens

	Name:		Stephanie Dickens
	Title:		Authorized Officer

  
 Signature Page to
First Amendment 

 ACKNOWLEDGED AND AGREED BY: 

WILLBROS UNITED STATES HOLDINGS, INC. 
 WILLBROS GOVERNMENT
SERVICES (U.S.), LLC 
 WILLBROS CONSTRUCTION (U.S.), LLC 

WILLBROS ENGINEERS (U.S.), LLC 
 WILLBROS ENGINEERING CALIFORNIA
(U.S.), INC. 
 WILLBROS MIDSTREAM SERVICES (U.S.), LLC 

WILLBROS PROJECT SERVICES (U.S.), LLC 
 WILLBROS ENGINEERS, LLC

 WILLBROS DOWNSTREAM, LLC 
 PREMIER WEST COAST SERVICES, INC.

 CONSTRUCTION TANK SERVICES, L.L.C. 
 WILLBROS UTILITY T&D
HOLDINGS, LLC 
 WILLBROS T&D SERVICES, LLC 
 CHAPMAN
CONSTRUCTION MANAGEMENT CO., INC. 
 CHAPMAN CONSTRUCTION CO., L.P. 

WILLBROS UTILITY T&D GROUP COMMON PAYMASTER, LLC 
 BEMIS, LLC

 WILLBROS UTILITY T&D OF MASSACHUSETTS, LLC 
 WILLBROS
UTILITY T&D OF NEW YORK, LLC 
 LINEAL INDUSTRIES, INC. 

SKIBECK PIPELINE COMPANY, INC. 
 TRAFFORD CORPORATION 

 

			
	By:		 /s/ Richard W. Russler

	Name:		Richard W. Russler
	Title:		Treasurer of each of the above-listed entities

  
 Signature Page to
First Amendment 

 
			
	KKR LENDING PARTNERS II L.P.,
	as a Lender
		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 CORPORATE CAPITAL TRUST, INC.,
 as a
Lender

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 KKR LENDING PARTNERS FUNDING LLC,

as a Lender

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 KKR-VRS CREDIT PARTNERS L.P.,
 as a
Lender

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	KKR LENDING PARTNERS FUNDING III LLC, as a Lender
		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory

  
 Signature Page to
First Amendment 

 
			
	KKR CREDIT SELECT FUNDING LLC,
	as a Lender
		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 LINCOLN INVESTMENT SOLUTIONS, INC.,

as a Lender

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 KKR CREDIT ADVISORS (US) LLC,
 as
Arranger

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory

  
 Signature Page to
First AmendmentEX-10.2

 Exhibit 10.2 

SUBSCRIPTION AGREEMENT 

This Subscription Agreement is entered into and dated as of March 31, 2015 (this “Agreement”), by and among Willbros
Group, Inc., a Delaware corporation (the “Company”), and each “Subscriber” listed on the Schedule A hereto (each, a “Subscriber” and, collectively, the “Subscribers”). 

RECITALS 
 WHEREAS, the Company
and the Subscribers are executing and delivering this Agreement in reliance upon the exemption from securities registration afforded by Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), and Rule
506 of Regulation D (“Regulation D”) promulgated by the United States Securities and Exchange Commission (the “Commission”) under the Securities Act. 

WHEREAS, the Company is the borrower under the Credit Agreement, dated as of December 15, 2014 (the “Credit Agreement”),
among the Company, the Guarantors (as defined in the Credit Agreement), the Lenders (as defined in the Credit Agreement) from time to time party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent (as defined in the Credit Agreement).

 WHEREAS, concurrently herewith, the Company, the Guarantors (as defined therein), the Lenders (as defined therein), the Arranger (as
defined therein) and the Administrative Agent (as defined therein) are entering into the First Amendment to Credit Agreement, dated as of the date hereof, in the form attached hereto as Exhibit A (the “Amendment”). 

WHEREAS, to induce the Lenders to enter into the Amendment, the Company has agreed to issue to each Subscriber, upon the terms and conditions
hereof, the number of shares of common stock, par value $0.05 per share (“Common Stock”), set forth opposite such Subscriber’s name on Schedule A hereto. 

WHEREAS, concurrently herewith, the parties hereto are executing and delivering a Registration Rights Agreement, in the form attached hereto
as Exhibit B (the “Registration Rights Agreement”), pursuant to which the Company has agreed to provide certain registration rights with respect to the Registrable Securities (as defined in the Registration Rights Agreement)
under the Securities Act and the rules and regulations promulgated thereunder, and applicable state securities laws. 
 NOW, THEREFORE, IN
CONSIDERATION of the mutual covenants contained in this Agreement, and for other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the Company and each Subscriber, severally and not jointly, agree as
follows: 
 1. Purchase and Sale; Closing. 

(a) Subject to the terms and conditions of this Agreement, each Subscriber agrees, severally and not jointly, to purchase from the Company,
and the Company agrees to issue and sell to such Subscriber, at the Closing, the number of shares of Common Stock set forth opposite such Subscriber’s name on Schedule A hereto (collectively, the “Shares”). 

(b) The issuance of the Shares pursuant to the terms of this Agreement (the “Closing”) is taking place at the offices of
Proskauer Rose LLP, Eleven Times Square, New York, New York 10036-8299, at 10:00 a.m. (New York time) on the date hereof, or at such other time and place as the Company and Subscribers have mutually agreed upon in writing (the “Closing
Date”). 

  
 1 

 (c) At the Closing, the Company shall deliver a copy of the Registration Rights Agreement
executed by the Company and each Subscriber shall deliver a copy of the Registration Rights Agreement executed by each such Subscriber. At the Closing, the Company shall issue irrevocable instructions to its transfer agent to, and such transfer
agent shall, issue on or before March 31, 2015 to each Subscriber the Shares set forth opposite such Subscriber’s name on Schedule A and register them in the name of such Subscriber in the records of such transfer agent as a
stockholder of record in book-entry form through the direct registration system with a notation that such Shares are subject to the restrictive legend set forth in Section 4. 

2. Representations and Warranties of the Company. The Company represents and warrants as of the date hereof to each Subscriber as
follows: 
 (a) The Company is a corporation duly organized, validly existing and in good standing under the laws of the State of Delaware.

 (b) The Company has all requisite organizational power and authority to (i) own its properties and assets, (ii) carry on its
business as now being conducted and as proposed to be conducted and (iii) execute, deliver and perform its obligations under this Agreement. This Agreement has been duly authorized, executed and delivered by the Company. This Agreement is a
legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms, subject to bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and similar laws of general applicability relating
to or affecting creditors’ rights and to general equity principles. 
 (c) The Shares have been duly and validly authorized and, when
issued to the Subscribers in the manner contemplated by this Agreement, will be validly issued, fully paid and nonassessable. 
 (d) As of
immediately prior to the Closing, the total number of shares of capital stock that the Company has the authority to issue is 71,000,000, including (i) 70,000,000 shares of Common Stock (50,881,456 shares of which are issued and outstanding and
3,346,810 shares of which are reserved for issuance under the Company’s equity incentive plans) and (ii) 1,000,000 shares of preferred stock, par value $0.01 per share (no shares of which are outstanding). Except as set forth in the
reports, schedules, forms, applications and other documents, together with any amendments required to be made with respect thereto required to be filed by the Company under the Securities Act and the Securities Exchange Act of 1934, as amended (the
“Exchange Act”), and rules and regulations promulgated thereunder, there are no issued or outstanding shares of capital stock of the Company or other equity interests or options, rights, warrants or other securities in any such case
issued by the Company or any of its subsidiaries, that are directly or indirectly convertible into or exercisable for equity interests of the Company outstanding, or other right granted or issued by the Company or any of its subsidiaries to acquire
equity interests of the Company. The Shares represent less than 20 percent of (i) the voting power of the outstanding Common Stock prior to the issuance of the Shares and (ii) the number of outstanding shares of Common Stock prior to the
issuance of the Shares. 
 (e) The execution and delivery of this Agreement by the Company does not, and the performance by the Company of
its obligations under this Agreement will not: (i) violate or conflict with any requirements of (x) any material contract of the Company or (y) the certificate of incorporation or bylaws or other organizational or charter documents of
the Company, (ii) assuming the accuracy of the representations and warranties of the Subscribers set forth in Section 3(i), result in or constitute (with or without the giving of notice, lapse of time or both) any default or event of
default under any such material contract or obligation of the Company, or give rise to a right of termination of, or accelerate the performance required by, any terms of any such material contract or (iii) assuming the accuracy of the
representations and warranties of the Subscribers set forth in Sections 3(c), 3(d) and 3(h), violate any 

  
 2 

 
statute, law, ordinance, rule, regulation or order of any court or governmental authority or any judgment, order or decree (U.S. federal, state or local or foreign) applicable to the Company,
except in the case of clauses (i)(x), (ii) and (iii), for such items that would not be reasonably likely to have, individually or in the aggregate, a material adverse effect on the Company or delay its ability to fulfill its obligations under
this Agreement or the Registration Rights Agreement on a timely basis. 
 (f) None of the Company, any of its subsidiaries or any of their
respective affiliates is required to obtain any consent, waiver, authorization, permit or order of, give any notice to, or make any filing or registration with, any governmental authority in connection with the execution, delivery and performance by
the Company of this Agreement, other than (i) the filing by the Company of a Notice of Sale of Securities on Form D with the Commission under Regulation D and state and applicable blue sky filings, (ii) the filing of a Current Report on
Form 8-K under the Exchange Act and (iii) the filing of any requisite notices and/or applications(s) to the New York Stock Exchange for the issuance and sale of the Shares for trading thereon. None of the Company, any of its subsidiaries or any
of their respective affiliates is aware of any facts or circumstances which might prevent the Company or any such subsidiary or affiliate from obtaining or effecting any of the registration, application or filings contemplated hereby. The Company is
in compliance in all material respects with the requirements of the New York Stock Exchange and, assuming the Company files its Form 10-K for the 2014 fiscal year on or prior to March 31, 2015, the Company has no knowledge of any facts or
circumstances that would reasonably lead to delisting or suspension of the Common Stock in the foreseeable future. 
 (g) On the date
hereof, there are no suits, actions, claims, demands, hearings, indictments, proceedings or investigations pending against the Company, or to the knowledge of the Company, threatened against the Company, any of its subsidiaries or any of their
respective affiliates, before any court, arbitrator or administrative or governmental body (U.S. federal, state or local or foreign) that question the validity of this Agreement or the performance of the Company’s obligations hereunder. 

(h) Assuming the accuracy of each Subscriber’s representations and warranties set forth in Section 3, no registration under
the Securities Act is required for the issuance or sale of the Shares by the Company to Subscribers hereunder. None of the Company, any of its subsidiaries, any of their respective affiliates, nor any person acting on of any their behalves has,
directly or indirectly, (i) made any offers or sales of any Company security or solicited any offers to buy any security, under circumstances that would require registration of the issuance of any of the Shares under the Securities Act, whether
through integration with prior offerings or otherwise or (ii) engaged in any form of general solicitation or general advertising (within the meaning of Regulation D) in connection with the offer or sale of the Shares. 

(i) The Company and its Board of Directors have taken all necessary action, if any, in order to render inapplicable any control share
acquisition, interested stockholder, business combination, poison pill (including any distribution under a rights agreement) or other similar anti-takeover provision under the Company’s certificate of incorporation, bylaws or other
organizational or charter documents or the laws of its jurisdiction of incorporation that are or could become applicable to the Subscribers as a result of the Subscribers and the Company fulfilling their obligations or exercising their rights
hereunder, including without limitation as a result of the Company’s issuance of the Shares and the Subscribers’ ownership of the Shares. The Company and its Board of Directors have taken all necessary action, if any, in order to render
inapplicable to the Company’s issuance of the Shares and the Subscribers’ ownership of the Shares any stockholder rights plan or similar arrangement relating to accumulations of beneficial ownership of shares of Common Stock or a change in
control of the Company or any subsidiary thereof; provided, however, nothing herein shall be construed to limit in any way the ability of the Company and its Board of Directors from adopting any stockholder rights plan or similar arrangement at any
time following the Closing and the application of such plan or arrangement to further accumulations of beneficial ownership of shares of Common Stock by the Subscribers and their affiliates or a change in control of the Company. 

  
 3 

 (j) The Company hereby acknowledges and agrees that this Agreement constitutes a “Loan
Document” under the Credit Agreement. Accordingly, it shall be a Default or an Event of Default (each as defined in the Credit Agreement), as applicable, under the Credit Agreement if (i) any representation or warranty made by the Company
under in Section 2 of this Agreement shall have been untrue, false or misleading in any material respect when made, or (ii) the Company shall fail to perform or observe any term, covenant or agreement contained in this Agreement. 

(k) All stock transfer or other taxes (other than income or similar taxes) which are required to be paid in connection with the sale and
transfer of the Shares to be sold to each Subscriber hereunder have been fully paid or provided for by the Company, and all laws imposing such taxes have been complied with. 

(l) Except as disclosed by the Company prior to the date hereof in any filing with the Commission, none of the Company, any of its
subsidiaries or, to the knowledge of the Company, any of their respective affiliates, including directors, officers, employees, consultants, joint venture partners, agents, representatives or other persons associated with them or acting on their
behalf has, directly or indirectly, (i) made, promised, offered or authorized any (x) unlawful payment or unlawful transfer of anything of value, directly or indirectly, to any government official, employee or agent, political party or,
official of such party or political candidate or person on the list of specially designated nationals and blocked persons subject to financial sanctions maintained by the U.S. Department of the Treasury, Office of Foreign Assets Control and any
other similar list maintained by the U.S. Department of the Treasury, Office of Foreign Assets Control pursuant to any statute, law, ordinance, rule, regulation or order of any court or governmental authority or any judgment, order or decree,
including trade embargoes, economic sanctions or other prohibitions imposed by executive order of the President of the United States, or (y) unlawful bribe, rebate, influence payment, kickback, money laundering or similar unlawful payment, or
(ii) violated or received notice of any suits, actions, claims, demands, hearings, indictments, proceedings or investigations regarding the Foreign Corrupt Practices Act of 1977, as amended, or any rules or regulations thereunder, the
Organisation for Economic Co-operation and Development Convention on Combating Bribery of Foreign Public Officials in International Business Transactions, dated 21 November 1977, any other statute, law, ordinance, rule, regulation or order of
any court or governmental authority or any judgment, order or decree that prohibits commercial bribery, domestic corruption or money laundering, the standards established by the Financial Action Task Force on Money Laundering or equivalent
applicable statute, law, ordinance, rule, regulation or order of any other governmental authority. 
 3. Representation and Warranties of
Each Subscriber. Each Subscriber, severally and not jointly, represents and warrants as of the date hereof to the Company as follows: 

(a) Such Subscriber is a duly formed and validly existing and in good standing under the laws of its jurisdiction of formation. 

(b) Such Subscriber has all requisite power and authority to execute, deliver and perform its obligations under this Agreement. This Agreement
has been duly authorized, executed and delivered by such Subscriber. This Agreement is a legal, valid and binding obligation of such Subscriber, enforceable against such Subscriber in accordance with its terms, subject to bankruptcy, insolvency,
fraudulent transfer, reorganization, moratorium and similar laws of general applicability relating to or affecting creditors’ rights and to general equity principles. 

  
 4 

 (c) Such Subscriber is acquiring its Shares for its own account for investment purposes and not
with a view to distributing or reselling such Shares or any part thereof in violation of applicable securities laws, without prejudice, however, to such Subscriber’s right at all times to sell or otherwise dispose of all or any part of such
Shares in compliance with applicable federal and state securities laws. Nothing contained herein shall be deemed a representation or warranty by such Subscriber to hold the Shares for any period of time. Such Subscriber understands that the Shares
have not been registered under the Securities Act, and therefore the Shares may not be sold, assigned or transferred unless pursuant to (i) an effective registration statement under the Securities Act with respect thereto or (ii) an
available exemption from the registration requirements of the Securities Act. 
 (d) Such Subscriber (i) is aware that an investment in
the Company is a speculative investment that has limited liquidity and is subject to the risk of complete loss, (ii) has not seen, received, been presented with, or been solicited by any leaflet, public promotional meeting, newspaper or
magazine article or advertisement, radio or television advertisement, or any other form of advertising or general solicitation with respect to the sale of the Shares, (iii) is an “accredited investor” as defined in Regulation D and is
capable of evaluating the risks and merits of an investment in the Company and of protecting its interests in connection with this investment and (iv) acknowledges that the certificates representing the Shares will bear the legend set forth in
Section 4 below. 
 (e) Such Subscriber (i) has completed its own independent inquiry and has relied fully upon the advice
of its own legal counsel, accountant, financial and other advisors in determining the legal, tax, financial and other consequences of this Agreement and the transactions contemplated hereby and the suitability of this Agreement and the transactions
contemplated hereby for such Subscriber and its particular circumstances (provided that such Subscriber has the right to rely upon the representations and warranties set forth herein to the extent provided herein) and, except as set forth herein,
has not relied upon any representations or advice by the Company or any of its affiliates, and (ii) is able, without impairing its financial condition, to hold the Shares for an indefinite period and to suffer a complete loss of its investment
in the Shares. 
 (f) The execution and delivery of this Agreement by such Subscriber does not, and the consummation by such Subscriber of
the transactions contemplated hereby, will not: (i) violate or conflict with any requirements of (x) any material contract of such Subscriber or (y) the certificate of incorporation or bylaws or similar organizational or charter
documents of such Subscriber, (ii) result in or constitute (with or without the giving of notice, lapse of time or both) any default or event of default under any such material contract or obligation of such Subscriber, or give rise to a right
of termination of, or accelerate the performance required by, any terms of any such material contract or (iii) violate any statute, law, ordinance, rule, regulation or order of any court or governmental authority or any judgment, order or
decree (U.S. federal, state or local or foreign) applicable to such Subscriber, except in the case of clauses (i)(x), (ii) and (iii), for such items that would not be reasonably likely to have, individually or in the aggregate, a material
adverse effect on the ability of such Subscriber to consummate the transactions contemplated by this Agreement. 
 (g) On the date hereof,
there are no suits, actions, claims, demands, hearings, indictments, proceedings or investigations pending against such Subscriber, or to the knowledge of such Subscriber, threatened against such Subscriber or any of its affiliates, before any
court, arbitrator or administrative or governmental body (U.S. federal, state or local or foreign) that question the validity of this Agreement or any of the transactions contemplated hereby. 

(h) Assuming the capitalization of the Company is as set forth in Section 2(d) hereof, such Subscriber, together with its
“affiliates” (as defined in Rule 13d-3 promulgated under the Securities Act), is the beneficial owner (as defined in Rule 13d-3) of not more than 4.99% of the outstanding shares of Common Stock immediately prior to the acquisition of the
Shares hereunder. 

  
 5 

 (i) Except for the other Subscribers, to the knowledge of such Subscriber, no Subscriber is a
member of a “group” (as such term is used in Rule 13d-5 under the Exchange Act) with any person that owns any Common Stock. 
 4.
Legend. A certificate representing the Shares will bear the following legend, or one similar thereto, drawing attention to the restrictions on its transferability: 

“THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
“SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION. THE SECURITIES MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT (1) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OR
(2) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN EACH CASE IN ACCORDANCE WITH ALL APPLICABLE STATE SECURITIES LAWS AND THE SECURITIES LAWS OF OTHER JURISDICTIONS, AND IN THE CASE OF A TRANSACTION EXEMPT FROM
REGISTRATION, UNLESS THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO IT THAT SUCH TRANSACTION DOES NOT REQUIRE REGISTRATION UNDER THE SECURITIES ACT AND SUCH OTHER APPLICABLE LAWS.” 

5. No Modification; Entire Agreement. This Agreement may not be amended, restated, modified or supplemented in any respect and the
observance of any term of this Agreement may not be waived except by a written instrument executed by the Company and each Subscriber. No failure to exercise or delay in exercising any right, power or remedy hereunder shall operate as a waiver
thereof, nor shall any single or partial exercise of any right, power or remedy hereunder preclude any other or further exercise thereof or the exercise of any other right, power or remedy. This Agreement, the Registration Rights Agreement, the
Credit Agreement and the Amendment supersede all prior contracts between the parties with respect to their subject matter and constitute a complete and exclusive statement of the terms of the contract between the parties with respect to the subject
matter hereof and thereof. 
 6. Parties in Interest; No Third Party Beneficiaries. This Agreement shall be binding upon and inure
solely to the benefit of each party hereto and its successors and permitted assigns, and nothing in this Agreement, express or implied, is intended to confer upon any other person or entity any rights or remedies of any nature whatsoever under this
Agreement, except as otherwise expressly provided herein. 
 7. Pledge. The Company acknowledges and agrees that a Subscriber may
from time to time pledge or grant a security interest in some or all of the Shares in connection with a bona fide margin agreement secured by the Shares and, if required under the terms of such agreement, such Subscriber may transfer pledged or
secured Shares to the pledgees or secured parties. Such a pledge or transfer would not be subject to approval of the Company and no legal opinion of the pledgee, secured party or pledgor shall be required in connection therewith. No notice shall be
required of such pledge. At the applicable Subscriber’s expense, the Company will execute and deliver such reasonable documentation as a pledgee or secured party of Shares may reasonably request in connection with a pledge or transfer of
Shares. 

  
 6 

 8. Governing Law; Submission to Jurisdiction; Venue. 

(a) This Agreement, and any contest, dispute, controversy or claim arising hereunder or related hereto, will be governed by and construed
in accordance with the internal laws of the State of Delaware applicable to agreements made and to be performed in that state, without reference to its principles of conflicts of law that would apply the laws of another jurisdiction. 

(b) The parties hereto irrevocably submit, in any proceeding directly or indirectly relating to or arising out of this Agreement, to the
exclusive jurisdiction of the courts of the State of Delaware or any federal court of the District of Delaware (in each case located in New Castle County), consent that any such proceeding may only be brought in such courts, waive any objection that
they may now or hereafter have to the venue of such proceeding in any such court or that such proceeding was brought in an inconvenient forum and agrees to be bound by any judgment rendered thereby in connection with this Agreement. Each of the
parties further agrees that a summons and complaint commencing a proceeding in any of such courts shall be properly served and shall confer personal jurisdiction if served to it at the address and in the manner set forth in Section 9 or
as otherwise provided under the laws of the State of Delaware. This provision may be filed with any court as written evidence of the knowing and voluntary irrevocable agreement between the parties to waive any objections to jurisdiction, to venue or
to convenience of forum. 
 9. Notices. 

(a) All notices, demands or requests made pursuant to, under or by virtue of this Agreement must be in writing and sent to the party to which
the notice, demand or request is being made at the address or facsimile number set forth below: 
  

					
	(i)		if to the Company to:
		
			Willbros Group, Inc.
			4400 Post Oak Parkway, Suite 1000
			Houston, TX 77027
			Attention:		General Counsel
			Facsimile:		(713) 403-8136
		
			with a copy (which shall not constitute notice) to:
		
			Conner & Winters, LLP
			4000 One Williams Center
			Tulsa, OK 74172
			Facsimile:		(918) 586-8673
			Attention:		Robert J. Melgaard
		
	(ii)		if to any Subscriber, to:
		
			 c/o KKR Credit Advisors (US) LLC

555 California St., 50th Floor
 San Francisco, CA
94104

			Attention:		General Counsel
			Facsimile:		(415) 391-3077

  
 7 

					
			with a copy (which shall not constitute notice) to
		
			 Proskauer Rose LLP
 One
International Place
 Boston, MA 02110

			Attention:		 Peter J. Antoszyk
 Daniel I.
Ganitsky

			Facsimile:		(617) 526-9899

 (b) Notice shall be delivered (i) by nationally recognized overnight courier delivery for next business
day delivery, (ii) by hand delivery or (iii) by facsimile or electronic mail transmission followed by overnight delivery the next business day. Legal counsel for the respective parties may send to the other party any notices, requests,
demands or other communications required or permitted to be given hereunder by such party. Any such notice, request, demand or other communication shall be treated as having been given only upon receipt thereof at the address specified in
Section 9(a) or such other address that any Subscriber may specify in a written notice to the Company or the Company may specify in a written notice to each Subscriber. 

10. No Assignment. Neither this Agreement nor any rights, benefits or obligations hereunder shall be assigned by any party, and
attempted assignment in violation of this Section 10 shall be null and void ab initio. 
 11. Integration. The
Company shall not, and shall use its reasonable best efforts to ensure that no affiliate of the Company shall, sell, issue, offer for sale or solicit offers to buy or otherwise negotiate in respect of any security (as defined in Section 2 of
the Securities Act) that would be integrated with the offer, issuance or sale of the Shares in a manner that would require the registration under the Securities Act of the offer, issuance or sale of the Shares to the Subscribers or that would be
integrated with the offer, issuance or sale of the Shares for purposes of the rules and regulations of the New York Stock Exchange. 
 12.
Reservation and Listing of Securities. The Company shall, as applicable (a) prepare and timely file with the New York Stock Exchange an additional shares listing application covering all of the Shares, (b) use its reasonable best
efforts to cause the Shares to be approved for listing on the New York Stock Exchange as soon as practicable thereafter, (c) provide to the Subscribers evidence of such listing and (d) use its reasonable best efforts to maintain the
listing of the Shares on the New York Stock Exchange. 
 13. Form D and Blue Sky. The Company shall file a Form D with respect to the
Shares as required under Regulation D. Without limiting any other obligation of the Company under this Agreement, the Company shall timely make all filings and reports relating to the offer and sale of the Shares required under all applicable
securities laws (including, without limitation, all applicable federal securities laws and all applicable “Blue Sky” laws), and the Company shall comply with all applicable federal, state and local laws, statutes, rules, regulations and
the like relating to the offering and sale of the Shares to the Subscribers. 
 14. Miscellaneous. 

(a) The parties hereto agree that they have been represented by counsel during the negotiation and execution of this Agreement and have
participated jointly in the drafting of this Agreement and, therefore, waive the application of any law, holding or rule of construction providing that ambiguities in an agreement or other document will be construed against the party drafting such
agreement or document. 

  
 8 

 (b) Any provision of this Agreement that refers to the words “include,”
“includes” or “including” shall be deemed to be followed by the words “without limitation.” References to numbered or letter articles, sections, subsections, paragraphs, Exhibits or Schedules refer to
articles, sections, subsections, paragraphs, Exhibits or Schedules, respectively, of this Agreement unless expressly stated otherwise. All references to this Agreement include, whether or not expressly referenced, the exhibits and schedules attached
hereto. The section and other headings contained in this Agreement are for reference purposes only and shall not affect the meaning or interpretation of this Agreement. The words “hereof,” “herein” and
“hereunder” and words of similar import when used in this Agreement shall refer to this Agreement as a whole and not to any particular provision of this Agreement. The word “or” when used in this Agreement is not
exclusive. The definitions contained in this Agreement are applicable to the singular as well as the plural forms of such terms and to the masculine as well as to the feminine and neuter genders of such term. Unless otherwise expressly indicated,
any agreement, instrument, law or statute defined or referred to herein or in any agreement or instrument that is referred to herein means such agreement, instrument, or statute as from time to time amended, modified or supplemented, including (in
the case of agreements or instruments) by waiver or consent and (in the case of statutes) by succession of comparable successor statutes and references to all attachments thereto and instruments incorporated therein. References to a person are also
to its permitted successors and assigns. The parties hereto have participated jointly in the negotiation and drafting of this Agreement and the other agreements and documents contemplated herein. 

(c) If any term, provision, covenant or restriction contained in this Agreement is held by a court of competent jurisdiction or other
authority to be invalid, void, unenforceable or against its regulatory policy, the remainder of the terms, provisions, covenants and restrictions contained in this Agreement shall remain in full force and effect and shall in no way be affected,
impaired or invalidated, and this Agreement shall be reformed, construed and enforced in such jurisdiction as if such invalid, illegal or unenforceable term, provision, covenant or restriction or any portion thereof had never been contained herein.
Upon such a determination, the parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties hereto as closely as possible in a reasonably acceptable manner in order that the transactions
contemplated hereby may be consummated as originally contemplated to the fullest extent possible. 
 (d) This Agreement may be executed and
delivered (including via facsimile or scanned pdf image) in several counterparts, each of which shall be deemed to be an original instrument, and all of which together shall be deemed to be one and the same agreement. 

(e) Each party agrees that it shall, from time to time after the date of this Agreement, execute and deliver such other documents and
instruments and take such other actions as may be reasonably requested by the Company or the Subscribers to carry out the transactions contemplated by this Agreement. 

(f) In addition to being entitled to exercise all rights provided herein or granted by law, including recovery of damages, each of the
Subscribers and the Company will be entitled to specific performance under this Agreement. Any person having any rights under any provision of this Agreement shall be entitled to enforce such rights specifically (without posting a bond or other
security), to recover damages by reason of any breach of any provision of this Agreement and to exercise all other rights granted by law. Furthermore, the Company recognizes that in the event that it fails to perform, observe, or discharge any or
all of its obligations under this Agreement, any remedy at law may prove to be inadequate relief to the Subscribers. The Company therefore agrees that the Subscribers shall be entitled 

  
 9 

 
to seek specific performance and/or temporary, preliminary and permanent injunctive or other equitable relief from any court of competent jurisdiction in any such case without the necessity of
proving actual damages and without posting a bond or other security. 
 [Signature pages follow] 

  
 10 

 IN WITNESS WHEREOF, the undersigned has executed this Agreement as of the date first written
above. 
  

			
	WILLBROS GROUP, INC.
		
	By:		 /s/ Richard W. Russler

	Name:		Richard W. Russler
	Title:		Treasurer

  
 Signature Page to
Subscription Agreement 

 IN WITNESS WHEREOF, the undersigned have executed this Agreement as of the date first set forth
above. 
  

			
	CORPORATE CAPITAL TRUST, INC.,
	as a Subscriber
		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 KKR LENDING PARTNERS L.P.,
 as a
Subscriber

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 KKR LENDING PARTNERS II L.P.,
 as a
Subscriber

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 KKR-VRS CREDIT PARTNERS L.P.,
 as a
Subscriber

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory
	
	 LINCOLN INVESTMENT SOLUTIONS, INC.,

as a Subscriber

		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory

  
 Signature Page to
Subscription Agreement 

 
			
	KKR CREDIT SELECT (DOMESTIC) FUND L.P., as a Subscriber
		
	By:		 /s/ Nicole Macarchuk

	Name:		Nicole Macarchuk
	Title:		Authorized Signatory

  
 Signature Page to
Subscription Agreement 

 SCHEDULE A 

 

					
	 Subscriber
	  	Shares of Common Stock	 
		
	 Corporate Capital Trust, Inc.
	  	 	2,810,814	  
		
	 KKR Lending Partners L.P.
	  	 	1,688,918	  
		
	 KKR Lending Partners II L.P.
	  	 	4,575,673	  
		
	 KKR-VRS Credit Partners L.P.
	  	 	384,766	  
		
	 Lincoln Investment Solutions, Inc.
	  	 	328,063	  
		
	 KKR Credit Select (Domestic) Fund L.P.
	  	 	337,176	  

 EXHIBIT A* 

AMENDMENT 
  

	*	Filed separately. 

 EXHIBIT B* 

REGISTRATION RIGHTS AGREEMENT 
  

	*	Filed separately.

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