THIRD AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT

This THIRD AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”)
is entered into as of November 30, 2018, among Jacobs Engineering Group Inc., a
Delaware corporation (the “Company”), certain Subsidiaries of the Company party
hereto (each a “Designated Borrower” and, together with the Company, the
“Borrowers” and each, a “Borrower”), each lender party hereto (collectively, the
“Lenders” and individually, a “Lender”), each issuer of letters of credit party
hereto (collectively, the “L/C Issuers” and individually, a “L/C Issuer”), and
Bank of America, N.A., as Administrative Agent and Swing Line Lender.

The Company, the Designated Borrowers, the Lenders, the L/C Issuers, the
Administrative Agent and the Swing Line Lender have entered into an Amended and
Restated Credit Agreement dated as of February 7, 2014 (as amended by that
certain Amendment Agreement dated as of March 4, 2015, and that certain Second
Amendment to Amended and Restated Credit Agreement dated as of September 28,
2017, the “Existing Credit Agreement”, and the Existing Credit Agreement as
amended by this Amendment, the “Credit Agreement”).

The Company has requested that the Swing Line Lender, the L/C Issuers and the
Lenders agree to certain amendments to the Credit Agreement, and the Swing Line
Lender, the L/C Issuers and the Lenders each a party hereto have agreed to such
request, subject to the terms and conditions of this Amendment.

In consideration of the mutual covenants and agreements herein contained, the
parties hereto covenant and agree as follows:

1.
Definitions; References; Interpretation.

(a)    Unless otherwise specifically defined herein, each term used herein
(including in the Recitals hereof) which is defined in the Existing Credit
Agreement shall have the meaning assigned to such term in the Existing Credit
Agreement.

(b)    As used herein, “Amendment Documents” means this Amendment and the Credit
Agreement.

(c)    Each reference to “this Agreement”, “hereof”, “hereunder”, “herein” and
“hereby” and each other similar reference contained in the Credit Agreement, and
each reference to “the Credit Agreement” and each other similar reference in the
other Loan Documents, shall from and after the Effective Date (as defined in
Section 2) refer to the Credit Agreement as amended hereby.

(d)    The rules of interpretation set forth in Section 1.02 of the Credit
Agreement shall be applicable to this Amendment.

2.Amendments to Credit Agreement. Subject to the terms and conditions hereof,
including satisfaction of the conditions set forth in Section 4(a), the Existing
Credit Agreement is amended as follows, effective as of the date designated by
the Administrative Agent pursuant to Section 4(d) (the “Effective Date”):

(a)    Section 2.14(e) of the Existing Credit Agreement is hereby amended by
inserting the following clause to the end of the first sentence thereof:

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“provided further that, effective upon closing of the ECR Disposition (as
defined in Section 7.07(g)), and to the extent that such entities are
transferred, dissolved, or merged or consolidated with or into another Person as
part of the ECR Disposition, each of Jacobs Nederland BV, Jacobs Engineering
Singapore Pte Ltd, Jacobs Canada Inc., Jacobs Engineering UK Limited, and Jacobs
E&C Australia Pty. Ltd. shall, absent contrary prior written notice from the
Company, automatically be terminated as Designated Borrowers hereunder upon the
repayment of the Borrowings made directly by each such Designated Borrower and
without further notice or other action by such Designated Borrowers or any other
Person (except that Company shall notify the Administrative Agent in writing
when the ECR Disposition has occurred).”

(b)    Section 7.07 of the Existing Credit Agreement is amended by (i) deleting
the word “and” at the end of clause (f), (ii) moving current clause (g) to a new
clause (h), and (iii) replacing current clause (g), such that clauses (g) and
(h) in their entirety shall read as follows:

“(g)    the Disposition of all or any portion of the energy, chemicals and
resources business of the Company, its Subsidiaries and certain joint ventures,
including in a transaction with WorleyParsons Ltd. which is consistent in all
material respects with the Disposition of such business as announced on October
21, 2018 (the “ECR Disposition”); and

(h)    Dispositions by the Company and its Subsidiaries not otherwise permitted
under this Section 7.07; provided that (i) at the time of such Disposition, no
Default shall exist or would result from such Disposition and (ii) the aggregate
book value of all property Disposed of in reliance on this clause (h) during the
term of this Agreement shall not exceed 10% of the Company’s Consolidated
Tangible Assets as of the end of the most recently ended fiscal year.”

3.Representations and Warranties. Each Borrower hereby represents and warrants
to the Administrative Agent, the L/C Issuers, the Swing Line Lender and the
Lenders as follows:

(a)    No Default has occurred and is continuing (or would result from the
amendment of the Existing Credit Agreement contemplated hereby).

(b)    The execution, delivery and performance by each Borrower of this
Amendment, and of the performance of the Credit Agreement, have been duly
authorized by all necessary corporate and other action and do not and will not
require any registration with, consent or approval of, or notice to or action
by, any Person (including any Governmental Authority) in order to be effective
and enforceable.

(c)    The Amendment Documents constitute the legal, valid and binding
obligations of each Borrower, enforceable against it in accordance with their
respective terms, subject to the effect of applicable bankruptcy, insolvency,
arrangement, moratorium and other similar laws affecting creditors’ rights
generally and the application of general principles of equity.

(d)    All representations and warranties of each Borrower contained in Article
V of the Existing Credit Agreement and the Credit Agreement are true and correct
in all material respects on and as of the Effective Date immediately before (in
the case of the Existing Credit Agreement) and immediately after (in the case of
the Credit Agreement) giving effect to this Amendment, except (i) to the extent
that such representations and warranties are qualified by materiality, they
shall be true and correct on and as of the Effective Date, and (ii) to the
extent that such representations and warranties specifically refer to an earlier

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date, they shall be true and correct in all material respects as of such earlier
date except to the extent qualified by materiality, then they shall be true and
correct as of such earlier date, and except that for purposes of this Section
3(d) and Section 4(a)(2), the representations and warranties contained in
subsections (a) and (b) of Section 5.05 of the Credit Agreement shall be deemed
to refer to the most recent statements furnished pursuant to clauses (a) and
(b), respectively, of Section 6.01 of the Credit Agreement.

4.
Conditions of Effectiveness.

(a)    The effectiveness of Section 2 of this Amendment shall be subject to the
satisfaction of each of the following conditions precedent:

(1)    The Administrative Agent shall have received from each Borrower, each L/C
Issuer, the Required Lenders, the Swing Line Lender and the Administrative
Agent, a duly executed original (or, if elected by the Administrative Agent, an
executed facsimile or “pdf” copy with originals to follow) of this Amendment.

(2)    The representations and warranties in Section 3 of this Amendment shall
be true and correct in all material respects on and as of the Effective Date
immediately before (in the case of the Existing Credit Agreement) and
immediately after (in the case of the Credit Agreement) giving effect to this
Amendment, with the same effect as if made on and as of the Effective Date,
except (i) to the extent that such representations and warranties are qualified
by materiality, they shall be true and correct on and as of the Effective Date,
and (ii) to the extent that such representations and warranties specifically
refer to an earlier date, they shall be true and correct in all material
respects as of such earlier date except to the extent qualified by materiality,
then they shall be true and correct as of such earlier date.

(3)    No Default has occurred and is continuing (or would result from the
amendment of the Existing Credit Agreement contemplated hereby).

(b)    For purposes of determining compliance with the conditions specified in
Section 4(a), each Lender that has signed this Amendment shall be deemed to have
consented to, approved or accepted or to be satisfied with, each document or
other matter required thereunder to be consented to or approved by or acceptable
or satisfactory to a Lender unless the Administrative Agent shall have received
notice from such Lender prior to the Effective Date specifying its objection
thereto.

(c)    From and after the Effective Date, the Credit Agreement is amended as set
forth herein. Except as expressly amended pursuant hereto, the Credit Agreement
shall remain unchanged and in full force and effect and is hereby ratified and
confirmed in all respects.

(d)    The Administrative Agent will notify the Company and the Lenders of the
occurrence of the Effective Date.

5.Fees, Interest and Other Payments. On or prior to the Effective Date, the
Administrative Agent shall have received evidence of payment by the Company of
all interest, costs and expenses due and payable as of the Effective Date under
or in connection with this Amendment and the Credit Agreement.

6.
Miscellaneous.

(a)    The Company acknowledges and agrees that the execution and delivery by
the Administrative Agent, the L/C Issuers, the Swing Line Lender and the Lenders
of this Amendment shall not

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be deemed to create a course of dealing or an obligation to execute similar
waivers or amendments under the same or similar circumstances in the future.

(b)    The Company, as the guarantor party to the Company Guaranty, confirms its
consent to the Amendment and to the documents and agreements referred to herein,
in its capacity as such guarantor. Nothing herein shall in any way limit any of
the terms or provisions of the Company Guaranty executed by the Company in the
Administrative Agent’s, the L/C Issuers’, the Swing Line Lender’s and the
Lenders’ favor, or any other Loan Document executed by the Company (as the same
may be amended from time to time), all of which are hereby ratified and affirmed
by the Company, in such capacity, in all respects.

(c)    This Amendment shall be binding upon and inure to the benefit of the
parties hereto and their respective successors and assigns permitted by the
Credit Agreement.

(d)    THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF NEW YORK.

(e)    This Amendment may be executed in counterparts (and by different parties
hereto in different counterparts), each of which shall constitute an original,
but all of which when taken together shall constitute a single contract. This
Amendment and the other Amendment Documents constitute the entire contract among
the parties relating to the subject matter hereof and supersede any and all
previous agreements and understandings, oral or written, relating to the subject
matter hereof. Except as provided in Section 4, this Amendment shall become
effective when it shall have been executed by the Administrative Agent and when
the Administrative Agent shall have received counterparts hereof that, when
taken together, bear the signatures of each of the other parties hereto.
Delivery of an executed counterpart of a signature page of this Amendment by
telecopy shall be effective as delivery of a manually executed counterpart of
this Amendment.

(f)    This Amendment and the other Amendment Documents contain the entire and
exclusive agreement of the parties hereto with reference to the matters
discussed herein. This Amendment supersedes all prior drafts and communications
with respect hereto. This Amendment may not be amended except in accordance with
the provisions of Section 10.01 of the Credit Agreement.

(g)    If any provision of this Amendment or the other Amendment Documents is
held to be illegal, invalid or unenforceable, (i) the legality, validity and
enforceability of the remaining provisions of this Amendment and the other
Amendment Documents and Loan Documents shall not be affected or impaired thereby
and (ii) the parties shall endeavor in good faith negotiations to replace the
illegal, invalid or unenforceable provisions with valid provisions the economic
effect of which comes as close as possible to that of the illegal, invalid or
unenforceable provisions. The invalidity of a provision in a particular
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.

(h)    The Borrowers agree to pay or reimburse all reasonable out-of-pocket
expenses incurred by the Administrative Agent and MLPFS (including the
reasonable fees, charges and disbursements of counsel for the Administrative
Agent and MLPFS), in connection with the preparation, negotiation, execution,
delivery and administration of this Amendment and the other Amendment Documents
or any amendments, modifications or waivers of the provisions hereof or thereof
(whether or not the transactions contemplated hereby or thereby shall be
consummated).

(i)
This Amendment shall constitute a Loan Document.

[signature pages follow]

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IN WITNESS WHEREOF, the parties hereto have caused this Third Amendment to
Amended and Restated Credit Agreement to be duly executed as of the date first
above written.

JACOBS ENGINEERING GROUP INC.

By:
/s/ Kevin C. Berryman                

Name:
Kevin Berryman                

Title:
Chief Financial Officer                

JACOBS UK HOLDINGS LIMITED

By:
/s/ Kevin C. Berryman                

Name:
Kevin C. Berryman                

Title:
Director                    

JACOBS U.K. LIMITED

By:
/s/ Kevin C. Berryman                

Name:
Kevin C. Berryman                

Title:
Director                    

JACOBS ENGINEERING UK LIMITED

By:
/s/ Tejender Chaudhary                

Name:
Tejender Chaudhary                

Title:
Director                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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JEG ACQUISITION COMPANY LIMITED

By:
/s/ Kevin C. Berryman                

Name:
Kevin C. Berryman                

Title:
Director                    

JACOBS NEDERLAND B.V.

By:
/s/ Erwin Geene                    

Name:
Erwin Geene                    

Title:
Vice President                    

JACOBS ENGINEERING SINGAPORE PTE
LTD

By:
/s/ Juan-Pablo Villamizar            

Name:
Juan-Pablo Villamizar                

Title:
Director                    

JACOBS CANADA INC.

By:
/s/ Michael Carlin                

Name:
Michael Carlin                    

Title:     Treasurer                    

JACOBS ENGINEERING ESPAÑA, S.L.

By:
/s/ Kevin C. Berryman                

Name:
Kevin C. Berryman                

Title:
Director                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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Each person who executes this Agreement on behalf of a party under a power of
attorney declares that he or she is not aware of any fact or circumstance that
might affect his or her authority to do so under that power of attorney.

SIGNED for JACOBS AUSTRALIA PTY LIMITED
under power of attorney in the
presence of:

                    
Signature of attorney

/s/ Renee J. Cardona                        /s/ Terence D. Hagen        
Signature of witness                        Name Terence D. Hagen, Director

Renee J. Cardona                                        
Name                                Date of power of attorney

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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Each person who executes this Agreement on behalf of a party under a power of
attorney declares that he or she is not aware of any fact or circumstance that
might affect his or her authority to do so under that power of attorney.

SIGNED for JACOBS E&C AUSTRALIA PTY. LTD.
under power of attorney in the
presence of:

                    
Signature of attorney

/s/ Chan Sook Cheng                        /s/ Tim Rice            
Signature of witness                        Name Tim Rice, Director

Chan Sook Cheng                                            
Name                                Date of power of attorney

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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Each person who executes this Agreement on behalf of a party under a power of
attorney declares that he or she is not aware of any fact or circumstance that
might affect his or her authority to do so under that power of attorney.

SIGNED for JACOBS AUSTRALIA HOLDINGS COMPANY PTY. LTD.
under power of attorney in the
presence of:

                    
Signature of attorney

/s/ Chan Sook Cheng                        /s/ Tim Rice        
Signature of witness                        Name Tim Rice, Director

Chan Sook Cheng                                        
Name                                Date of power of attorney

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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Each person who executes this Agreement on behalf of a party under a power of
attorney declares that he or she is not aware of any fact or circumstance that
might affect his or her authority to do so under that power of attorney.

SIGNED for JACOBS GROUP (AUSTRALIA) PTY LTD.
under power of attorney in the
presence of:

                    
Signature of attorney

/s/ Heather A. Millson                        /s/     Patrick Hill        
Signature of witness                        Name Patrick Hill, Director

Heather A. Millson                                        
Name                                Date of power of attorney

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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BANK OF AMERICA, N.A., as
Administrative Agent

By:
/s/ Liliana Claar                

Name:
Liliana Claar                    

Title:
Vice President                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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BANK OF AMERICA, N.A., as a Tranche 1
Lender, as an L/C Issuer and as Swing Line Lender

By:
/s/ Daniel Blakely                

Name:
Daniel Blakely                    

Title:
Associate                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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BNP PARIBAS, as a Tranche 1 Lender
and as an L/C Issuer

By:
/s/ Brendan Heneghan            

Name:
Brendan Heneghan                

Title:
Director                    

By:
/s/ Christopher Sked                

Name:
Christopher Sked                

Title:
Managing Director                

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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BANK OF THE WEST, as a Tranche 1 Lender

By:
/s/ Bryan Bains                    

Name:
Bryan Bains                    

Title:
VP                        

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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WELLS FARGO BANK, N.A., as a Tranche 2
Lender and as an L/C Issuer

By:
/s/ Mark B. Felker                

Name:
Mark B. Felker                    

Title:
Managing Director                

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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MUFG BANK, LTD., as a Tranche 1 Lender and as an L/C Issuer

By:
/s/ Katie Cunningham                

Name:
Katie Cunningham                

Title:
Director                        

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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TD BANK, N.A., as a Tranche 1 Lender

By:
/s/ Emily Chott                    

Name:
Emily Chott                    

Title:
Senior Vice President                

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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THE BANK OF NOVA SCOTIA, as a Tranche 1
Lender

By:
/s/ Michael Grad                

Name:
Michael Grad                    

Title:
Director                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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BARCLAYS BANK PLC, as a Tranche 1 Lender

By:
/s/ Patricia Oreta                

Name:
Patricia Oreta                    

Title:
Director                    

Executed in New York

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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COMPASS BANK, as a Tranche 1 Lender

By:
/s/ Aaron Lloyd                    

Name:
Aaron Lloyd                    

Title:
Director                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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CITIZENS BANK, N.A., as successor to RBS
Citizens, N.A. as a Tranche 1 Lender

By:
/s/ Jonathan Gleit                

Name:
Jonathan Gleit                    

Title:
Senior Vice pres                

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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THE NORTHERN TRUST COMPANY, as a
Tranche 1 Lender

By:
/s/ Wicks Barkhausen                

Name:
Wicks Barkhausen                

Title:
Vice President                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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HSBC BANK USA, N.A., as a Tranche 2 Lender

By:
/s/ Rumesha Ahmed                

Name:
Rumesha Ahmed                

Title:
Vice President                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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U.S. BANK, NATIONAL ASSOCIATION, as a
Tranche 2 Lender

By:
/s/ Jonathan F. Lindvall                

Name:
Jonathan F. Lindvall                

Title:
Vice President                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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U.S. BANK, NATIONAL ASSOCIATION,
CANADA BRANCH, as a Tranche 2 Lender

By:
/s/ Jonathan F. Lindvall                

Name:
Jonathan F. Lindvall                

Title:
Vice President                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages

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AUSTRALIA AND NEW ZEALAND
BANKING GROUP LIMITED, as a Tranche 2
Lender

By:
/s/ Robert Grillo                

Name:
Robert Grillo___                

Title:
Director                    

Jacobs Engineering
Third Amendment to Amendment and Restated Credit Agreement
Signature Pages