Document:

Amended and Restated Director Stock Purchase Plan of CACI International Inc

 Exhibit 10.1 
 CACI INTERNATIONAL INC 
 DIRECTOR STOCK PURCHASE PLAN 

(Amended and Restated as of March 15, 2012) 
 I. INTRODUCTION 
 The purpose of the CACI International Inc Director Stock
Purchase Plan (the “Plan”) is to provide an opportunity for Non-Employee Directors of CACI International Inc (the “Company”) to acquire an equity interest in the Company. Under the Plan, (1) Non-Employee Directors may elect
to receive shares of the Company’s Class A Common Stock (“Stock”) and/or restricted stock units (“RSUs”) in lieu of some or all of their annual retainer fees (the “Retainer”), and (2) if a Non-Employee
Director does not own the minimum number of shares of Stock (including vested RSUs) required to be owned by directors of the Company (the “Minimum Share Amount”), as established from time to time by the Board of Directors of the Company
(the “Board”), then, subject to the approval of the Board, such Non-Employee Director will receive shares of Stock in lieu of the Retainer and any other fees earned by such Non-Employee Director for service on the Board (such other fees,
the “Additional Fees”). Each RSU represents the right to receive one (1) share of Stock upon the terms and conditions stated herein. RSUs are granted at the fair market value of the Stock on a Determination Date (as defined below).
Generally, a Non-Employee Director (as defined in Section III below) who elects to participate in the Plan (an “Electing Participant”) will receive shares of Stock in lieu of some or all of his or her Retainer on each date a Retainer is
paid or would be payable to such Electing Participant (the “Award Date”) or, if the Electing Participant has made a valid deferral election, the Electing Participant will receive RSUs for some or all of his or her Retainer that will be
settled in shares of Stock upon the Electing Participant’s separation from service as a director (as determined for purposes of Section 409A of the Internal Revenue Code) (“Separation from Service”). A Non-Employee Director who
does not own the Minimum Share Amount and participates in the Plan upon the approval and at the direction of the Board (a “Non-Compliant Participant”) will receive shares of Stock in lieu of his or her Retainer and Additional Fees, as
provided herein, on each Payment Date (as defined below). For purposes of the Plan, (i) “Payment Date” means each of March 15, June 15, September 15, and December 15; (ii) “Determination
Date” means any Award Date and Payment Date; and (iii) “Participants” means the Electing Participants and Non-Compliant Participants collectively. 
 The provisions of this amended and restated Plan shall apply only to Award Dates on or after January 1, 2011 and to Payment Dates on or after March 15, 2012. The rights and benefits, if any, of
an Electing Participant entitled to RSUs with an Award Date prior to January 1, 2011 shall be determined in accordance with the provisions of the Plan that were in effect on December 31, 2010. 

 II. ADMINISTRATION 
 The Plan shall be administered by the Compensation Committee of the Board (the “Committee”). Each member of the Committee shall be a “disinterested person” within the meaning of Rule
16b-3(c)(2)(i) promulgated under the Securities Exchange Act of 1934, as amended (the “Act”). The Committee shall have complete discretion and authority with respect to the Plan and its application, except as expressly limited herein.
Determination by the Committee shall be final and binding on all parties with respect to all matters relating to the Plan. The Plan shall be operated and administered on a calendar year. 
 III. ELIGIBILITY 
 Non-Employee Directors (as defined in the CACI
International Inc 2006 Stock Incentive Plan) shall be eligible to become Participants in the Plan. 
 IV. PARTICIPATION 

 

	 	A.	Award of Stock or Restricted Stock Units to Electing Participants. Each Electing Participant shall receive shares of Stock in lieu of some or all of his or her
Retainer on the Award Date or, if the Electing Participant has made a deferral election, the Electing Participant will receive RSUs for some or all of his or her Retainer that will be settled in shares of Stock upon the Electing Participant’s
Separation from Service. Each RSU awarded to an Electing Participant shall be credited to a bookkeeping account established and maintained for that Electing Participant. 

 

	 	B.	Award of Stock to Non-Compliant Participants. Each Non-Compliant Participant shall receive shares of Stock in lieu of all of his or her Retainer and Additional
Fees on each Payment Date. A Non-Compliant Participant’s receipt of Stock under this Section IV.B shall commence with the first Payment Date after the Board approves and directs the participation of such Non-Compliant Participant under the Plan
and shall terminate on the earlier of (i) the date such Non-Compliant Participant owns Stock (including vested RSUs) equal to or in excess of the Minimum Share Amount, or (ii) the date of such Non-Compliant Participant’s Separation
from Service. 

  

	 	C.	 Valuation of RSUs; Fair Market Value of Stock. Each RSU and share of Stock issued under the Plan, shall be determined as follows: The
“Cost” of each RSU and share of Stock shall be equal to the fair market value of the Stock on the applicable Determination Date. For all purposes of the Plan, the “fair market value of the Stock” or “Value” on any given
date shall mean the last reported sale price at which Stock is traded on such date or, if no Stock is traded on such date, the most recent date prior to such date on which Stock was traded, as reflected on the NYSE or other national exchange on
which the Stock is traded. If the Stock is not then traded on an exchange, the Value shall be the fair market value of the Stock, as is determined by the Board, in good faith, in conformance with the Treasury Regulation Section 20.2031-2. For
purposes of Section V.C., the “Value” of each RSU is the fair market value of the Stock on the date that the 

	 	
Participant’s membership on the Board terminates. For purposes of Section V.D., the “Value” of the Stock is the fair market value of the Stock on the payment date for the dividend
or distribution. 

  

	 	D.	Election to Participate or Defer. Each Electing Participant may voluntarily elect to receive some or all of his or her Retainer in Stock or RSUs settled in
Stock. The election by an Electing Participant to participate in the Plan and to receive Stock and/or RSUs payable in Stock upon Separation from Service, shall be made by, and only by, the filing of a completed Subscription Agreement
(“Subscription Agreement”) with the Company on or before the last business day of December (to be effective January 1 and beyond); provided, however, in no event may a participation or deferral election be made after the last date
that such election must be made in order to comply with the provisions of Section 409A of the Internal Revenue Code. An election to receive Stock or RSUs in lieu of some or all of the Retainer must be expressed as a specified percentage (in
increments of 25%) of the Electing Participant’s Retainer. An election to receive Stock and/or RSUs shall only apply to the Retainer earned and payable for services provided for calendar years following the date of the election. An election to
receive Stock or RSUs is irrevocable and may not be changed or revoked during a calendar year to which the election applies. Subscription Agreements must be filed using the form supplied by the Company and filed with (and received by) the Company
(ATTN: Director of Business Operations). 

  

	 	E.	Subsequent Elections. Once a Subscription Agreement is filed with the Company, an Electing Participant may make changes in the Subscription Agreement (including
a revocation of further participation) by filing a new Subscription Agreement on or before the last business day of December. A new Subscription Agreement shall only apply to the Retainer earned and payable for services provided for calendar years
following the date that the new Subscription Agreement is filed. If an Electing Participant fails to file a new Subscription Agreement on or before the last business day of December and is still eligible to participate in the Plan, the Electing
Participant will be deemed to have elected to keep the prior Subscription Agreement in force for the next year. 

  

	 	F.	Election of Stock or RSUs. Each Subscription Agreement shall specify whether the Participant is to receive (1) RSUs which shall be payable in Stock thirty
(30) days after the date of the Participant’s Separation from Service, or (2) Stock to be issued by the Company within thirty (30) days after the Determination Date. If a Participant elects to receive both RSUs and Stock, the
Subscription Agreement shall specify the percentage of the award to be made in RSUs and Stock, respectively. The Participant’s election shall be irrevocable. 

 

	 	G.	Grant of Stock; Award of RSUs. 

 (i) Electing Participants. If an Electing Participant elects to receive Stock or RSUs, then the Company shall grant Stock or RSUs to such Electing Participant on the Award Date in accordance with
the following: If the Electing Participant 

 
has elected to receive Stock, the Electing Participant shall receive a whole number of shares of Stock determined by dividing the amount (expressed in dollars) that is determined under his or her
Subscription Agreement by the Cost of the Stock on the Award Date. In the event such calculation would result in a fractional share, the amount of shares issued to the Electing Participant will be rounded up to the next whole number. If the Electing
Participant has elected to receive RSUs, the Electing Participant’s account shall be credited with a whole number of RSUs determined by dividing the amount (expressed in dollars) that is determined under his or her Subscription Agreement by the
Cost of a RSU on the Award Date. In the event such calculation would result in a fractional RSU, the amount of RSUs awarded to the Electing Participant will be rounded up to the next whole number. 

(ii) Non-Compliant Participants. If a Non-Compliant Participant receives Stock under Section IV.B, then the Company shall grant
Stock to such Non-Compliant Participant on each Payment Date in accordance with the following: the Non-Compliant Participant shall receive a whole number of shares of Stock determined by dividing the Total Fee Amount (as defined below) by the Cost
of the Stock on the applicable Payment Date. In the event such calculation would result in a fractional share, the amount of shares issued to the Non-Compliant Participant will be rounded up to the next whole number. The term “Total Fee
Amount” shall mean, with respect to a Non-Compliant Participant as of any Payment Date, the amount (expressed in dollars) equal to the sum of (1) the portion of the Retainer payable to such Non-Compliant Participant as of such Payment
Date, plus (2) all Additional Fees earned by and payable to such Non-Compliant Participant as of such Payment Date. 
 V. VESTING AND
SETTLEMENT OF RSUs 
  

	 	A.	Vesting. A Participant shall be fully vested in each share of Stock or RSU issued under the Plan. 

 

	 	B.	Settlement of RSUs. With respect to each RSU, the Company shall issue to the Participant one (1) share of Stock thirty (30) days after the earlier of
the date of the Participant’s death or Separation from Service. 

  

	 	C.	Method of Settlement. Shares of stock to be issued by the Company (including shares to be issued upon settlement of RSUs) shall be shares of the Company’s
Stock, which may be, in any combination, (i) authorized but unissued shares of Stock, (ii) shares of Stock that are reacquired by the Company and held as treasury shares, and/or (iii) shares of Stock purchased on the open market by a
broker designated by the Company and, subject to the requirements of Section IX, immediately thereafter issued for the benefit of a Participant under the Plan. It is intended that a registration statement under the Securities Act of 1933, as
amended, shall be effective with respect to the shares of Stock issued under the Plan. 

	 	D.	Dividends. If, prior to settlement of an RSU, the Company pays any dividend (other than in Stock) on its Stock, or makes any distribution (other than in Stock)
with respect thereto, the Participant’s account will be credited with a number of additional RSUs determined by dividing the amount of the dividend or other distribution allocable to the RSUs already credited to the account as of the record
date for the dividend or distribution, by the Value of a share of the Stock on the payment date for the dividend or distribution. The shares of Stock underlying the additional RSUs credited to the account hereby will be distributed when, and only
when, the related RSUs are settled pursuant to this Section V. 

 VI. DESIGNATION OF BENEFICIARY 

A Participant may designate one or more beneficiaries to receive payments or shares of Stock in the event of his or her death. A designation of
beneficiary shall apply to a specified percentage of a Participant’s entire interest in the Plan. Such designation, or any change therein, must be in writing and shall be effective upon receipt by the Company (attn: Director of Business
Operations). If there is no effective designation of beneficiary, or if no beneficiary survives the Participant, the Participant’s estate shall be deemed to be the beneficiary. 
 VII. SHARES AVAILABLE; MAXIMUM NUMBER OF SHARES AND RSUs; ADJUSTMENTS 
  

	 	A.	Shares Issuable. The aggregate maximum number of shares of Stock reserved and available for issuance under the Plan shall be 75,000. Stock available under the
Plan may be, in any combination, Stock acquired on the open market or Stock that is reacquired by the Company. 

  

	 	B.	Adjustments. In the event of a stock dividend, stock split or similar change in capitalization affecting the Stock, the Committee shall make appropriate
adjustments in (i) the number and kind of shares of Stock or securities with respect to which Stock or RSUs shall thereafter be granted; (ii) the number of and kind of shares remaining subject to outstanding RSUs; (iii) the number of
RSUs credited to each Participant’s account; and (iv) the method of determining the value of RSUs. In the event of any proposed merger, consolidation, sale, dissolution or liquidation of the Company, the Committee in its sole discretion
may make such substitution or adjustment in the aggregate number of shares available for issuance under the Plan and, as to any outstanding RSUs, the number of shares subject to such RSUs as it may determine on an equitable basis and as may be
permitted by the terms of such transaction, or terminate such RSUs upon such terms and conditions as it shall provide. In the case of the termination of any RSU, the Committee shall provide payment or other consideration that the Committee deems
equitable in the circumstances, provided that such payment (including the timing thereof) otherwise complies with the provisions of Section 409A of the Internal Revenue Code. 

 VIII. AMENDMENT OR TERMINATION OF PLAN 

 

	 	A.	The Company reserves the right to amend, suspend or terminate the Plan at any time, by action of the Board, provided, however, that (1) no such action by
the Board shall materially and adversely affect a Participant’s rights under the Plan with respect to grants of Stock or RSUs before the date of such action, (2) any such action shall be subject to approval by the Company’s
shareholders to the extent required by the Act to ensure that awards are exempt under Rule 16b-3 promulgated under the Act, and (3) no such action shall accelerate the date for any payment of (or with respect to) a RSU.

  

	 	B.	Notwithstanding the foregoing, the Board may (without the approval or consent of any Participant): 

 

	 	1.	Make such amendments or modifications to the Plan and Subscription Agreements that the Board, in its sole and absolute discretion, determines are necessary or
desirable in order to address and conform the provisions of the Plan to the provisions of Section 409A of the Internal Revenue Code, and the regulations issued thereunder; or 

 

	 	2.	Elect to terminate the Plan and provide payment or other consideration that the Committee deems equitable in the circumstances: 

 

	 	i.	in connection with the termination of all arrangements sponsored by the Company (and any other company that is deemed to be part of a single service recipient
for purposes of Section 409A of the Internal Revenue Code) that would be aggregated under Section 409A of the Internal Revenue Code if the same service provider participated in such arrangements, provided that (i) the termination and
liquidation of the Plan do not occur proximate to a downturn in the Company’s financial health; (ii) no payments (other than those payments that would have been made had the termination not occurred) are made within twelve (12) months
of the date of termination; (iii) all payments with respect to RSUs are made within twenty-four (24) months of the date of termination; and (iv) neither the Company (or any other company that is deemed to be part of a single service
recipient for purposes of Section 409A of the Internal Revenue Code) adopts a new arrangement that would have been aggregated with the Plan under Section 409A of the Internal Revenue Code within three (3) years from the date of
termination; 

  

	 	ii.	within thirty (30) days prior to, or twelve (12) months following, a “Change In Control” (as defined for purposes of Section 409A of the
Internal Revenue Code), provided that, with respect to each Participant affected by the Change in Control, all arrangements that are sponsored by the Company (and any other company that is deemed to be part of a single service recipient for purposes
of Section 409A of the Internal Revenue Code) and aggregated with the Plan under Section 409A are terminated and all RSUs are paid out within twelve (12) months of the date of termination; or 

	 	iii.	within twelve (12) months of a corporate dissolution that is taxed under Section 331 of the Internal Revenue Code or with the approval of a bankruptcy
court pursuant to 11 U.S.C. Section 503(b)(1)(A), provided that payment with respect to such RSUs is made as soon as administratively practicable thereafter to all Participants in the calendar year in which the termination and liquidation of
the Plan occur or, if later, the first calendar year in which payment is administratively practicable. 

  

	 	3.	No such termination, amendment or modification shall be deemed to materially and adversely affect any RSUs previously awarded under the Plan.

 IX. MISCELLANEOUS PROVISIONS 
  

	 	A.	No Distribution; Compliance with Legal Requirements. The Committee may require each person acquiring shares of Stock under the Plan to represent to and agree
with the Company in writing that such person is acquiring the shares without a view to distribution thereof. No shares of Stock shall be issued until all applicable securities law and other legal and stock exchange requirements have been satisfied.
The Committee may require the placing of such stop-orders and restrictive legends on certificates for Stock as it deems appropriate. 

  

	 	B.	Notices; Delivery of Stock Certificates. Any notice required or permitted to be given by the Company or the Committee pursuant to the Plan shall be deemed given
when personally delivered or deposited in the United States mail, registered or certified, postage prepaid, addressed to the Participant at the last address shown for the Participant on the records of the Company. Delivery of stock certificates to
persons entitled to receive them under the Plan shall be deemed effected for all purposes when the Company or a share transfer agent of the Company shall have deposited such certificates in the United States mail, addressed to such person at his/her
last known address on file with the Company. 

  

	 	C.	Nontransferability of Rights. During a Participant’s lifetime, any payment or issuance of shares under the Plan shall be made only to him/her. No RSU or
other interest under the Plan shall be subject in any manner to anticipation, alienation, sale, transfer, assignment, pledge, encumbrance or charge, and any attempt by a Participant or any beneficiary under the Plan to do so shall be void. No
interest under the Plan shall in any manner be liable for or subject to the debts, contracts, liabilities, engagements or torts of a Participant or beneficiary entitled thereto. 

 

	 	D.	 Company’s Obligations To Be Unfunded and Unsecured. The Plan shall at all times be entirely unfunded, and no provision shall at any time be
made with respect to segregating assets of the Company (including Stock) for payment of 

	 	
any amounts or issuance of any shares of Stock hereunder. No Participant or other person shall have any interest in any particular assets of the Company (including Stock) by reason of the right
to receive payment under the Plan, and any Participant or other person shall have only the rights of a general unsecured creditor of the Company with respect to any rights under the Plan. 

 

	 	E.	Compliance with Section 409A. Notwithstanding anything herein to the contrary, no amount of “deferred compensation” (within the meaning of
Section 409A of the Internal Revenue Code) payable to a Non-Employee Director shall be paid earlier than the earliest date permitted under Section 409A of the Internal Revenue Code, and all deferral elections made hereunder shall be made
in accordance with the provisions of Section 409A. The Plan, including all deferral elections and distributions hereunder, is intended to comply with the provisions of Section 409A of the Internal Revenue Code and if any provision of the
Plan is subject to more than one interpretation or construction, such ambiguity shall be resolved in favor of the interpretation or construction which is consistent with the Plan complying with the provisions of Section 409A.

  

	 	F.	Governing Law. The terms of the Plan shall be governed, construed, administered and regulated in accordance with the laws of the State of Delaware. In the event
any provision of this Plan shall be determined to be illegal or invalid for any reason, the other provisions shall continue in full force and effect as if such illegal or invalid provision had never been included herein. 

 

	 	G.	Effective Date of Plan. The Plan became effective as of the date of its approval by the holders of a majority of the shares of the Company’s Class A
Common Stock, voting as a single class, present or represented and entitled to vote at a meeting of the shareholders.Third Supplemental Indenture dated as of May 4, 2012, among Rowan Companies, Inc

 Exhibit 4.4 

 
  

 
 ROWAN COMPANIES, INC.

 as the Company 
 ROWAN COMPANIES PLC 
 as Guarantor 

and 

U.S. BANK NATIONAL ASSOCIATION 
 as Trustee 
 THIRD SUPPLEMENTAL INDENTURE 

Dated as of May 4, 2012 
 to 
 INDENTURE 

Dated as of July 21, 2009 
  

 
  

  
 Third
Supplemental Indenture 

  

 TABLE OF CONTENTS 

 

					
	 	  	Page	 
	 ARTICLE ONE Relation to Indenture; Definitions
	  	 	1	  
	 SECTION 1.01. Relation to Indenture
	  	 	1	  
	 SECTION 1.02. Definitions
	  	 	1	  
	 SECTION 1.03. General References
	  	 	2	  
		
	 ARTICLE TWO Amendments to the Indenture
	  	 	2	  
	 SECTION 2.01. Defined Terms
	  	 	2	  
	 SECTION 2.02. Notices, Etc. to Trustee, Company and Guarantors
	  	 	2	  
	 SECTION 2.03. Reports by the Parent
	  	 	3	  
		
	 ARTICLE THREE Miscellaneous
	  	 	3	  
	 SECTION 3.01. Certain Trustee Matters
	  	 	3	  
	 SECTION 3.02. Continued Effect
	  	 	4	  
	 SECTION 3.03. Governing Law
	  	 	4	  
	 SECTION 3.04. Counterparts
	  	 	4	  

  
 Third
Supplemental Indenture 

  

 THIRD SUPPLEMENTAL INDENTURE, dated as of May 4, 2012 (this “Supplemental
Indenture”), by and among ROWAN COMPANIES, INC., a corporation duly organized and existing under the laws of the State of Delaware (the “Company”), ROWAN COMPANIES PLC, a public limited company incorporated under the
laws of England and Wales (the “Parent”), and U.S. BANK NATIONAL ASSOCIATION, a nationally chartered banking association, as trustee under the Indenture referred to below (in such capacity, the “Trustee”). 

RECITALS OF THE COMPANY 
 WHEREAS, the Company and the Trustee have heretofore entered into an Indenture dated as of July 21, 2009 (the “Original Indenture”), as supplemented by the First Supplemental Indenture
thereto, dated as of July 21, 2009 (the “First Supplemental Indenture”), and the Second Supplemental Indenture thereto, dated as of August 30, 2010 (the “Second Supplemental Indenture”) (the Original Indenture, as
supplemented from time to time, including without limitation pursuant to the First Supplemental Indenture, the Second Supplemental Indenture and this Supplemental Indenture, being referred to herein as the “Indenture”); 

WHEREAS, pursuant to the First Supplemental Indenture, the Company issued, and the Trustee authenticated and delivered, the
Company’s 7.875% Senior Notes due 2019 (the “7.875% Notes”) and, pursuant to the Second Supplemental Indenture, the Company issued, and the Trustee authenticated and delivered, the Company’s 5% Senior Notes due 2017 (together
with the 7.875% Notes, the “Notes”); 
 WHEREAS, pursuant to an Agreement and Plan of Merger and Reorganization, dated
as of February 27, 2012, between the Company and Rowan Mergeco, LLC, a newly formed Delaware limited liability company and wholly owned subsidiary of the Company (“Rowan Mergeco”), Rowan Mergeco has, contemporaneously with the
effectiveness of this Supplemental Indenture, consummated a merger (the “merger”) with and into the Company, with the Company surviving the merger and becoming an indirect, wholly owned subsidiary of the Parent; and 

WHEREAS, in connection with the merger, the Company and the Parent have determined that it will be in the best interests of and
beneficial to the Company and the Parent for the Parent to guarantee the Notes in accordance with the terms of the Indenture, including Article Fourteen thereof; 
 WHEREAS, the Company and the Parent desire to execute and deliver this Supplemental Indenture in order to provide for such guarantee; 

WHEREAS, Section 9.1(d) of the Indenture expressly permits the Company and the Trustee to amend or supplement the Indenture or the
Securities Guarantees without the consent of any Holder of a Security in order to add a Securities Guarantee or cause any Person to become a Guarantor; and 
 WHEREAS, for the purposes hereinabove recited, and pursuant to due corporate action, each of the Company and the Parent has duly determined to execute and deliver to the Trustee this Supplemental
Indenture, and all conditions and requirements necessary to make this Supplemental Indenture a valid, legal and binding instrument in accordance with its terms have been satisfied, and the execution and delivery hereof have been in all respects duly
authorized. 
 NOW, THEREFORE, in consideration of the premises, agreements and obligations set forth herein and for other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree, for the equal and proportionate benefit of all Holders of the Notes, as follows: 

ARTICLE ONE 

RELATION TO INDENTURE; DEFINITIONS 

SECTION 1.01. Relation to Indenture. 
 This Supplemental Indenture constitutes an integral part of the Indenture. 

SECTION 1.02. Definitions. 
 For all purposes of this Supplemental Indenture, capitalized terms used herein and not otherwise defined herein shall have the meanings assigned thereto in the Indenture. 

  
 Third
Supplemental Indenture 

  

 SECTION 1.03. General References. 

Unless otherwise specified or unless the context otherwise requires, (i) all references in this Supplemental Indenture to Articles
and Sections refer to the corresponding Articles and Sections of this Supplemental Indenture and (ii) the terms “herein,” “hereof,” “hereunder” and any other word of similar import refer to
this Supplemental Indenture. 
 ARTICLE TWO 
 AMENDMENTS TO THE INDENTURE 
 The Indenture is hereby amended as set forth below in this Article Two; provided, however, that the amendments effected hereby shall apply to the Notes only and not to any other series of
Securities issued under the Indenture, and such amendments are being effected solely for the benefit of the Notes and the Holders thereof. 
 SECTION 2.01. Defined Terms. 
 With respect solely to the
Notes, and not to any other series of Securities, Section 1.1 of the Indenture is hereby amended by inserting the following defined term in its appropriate alphabetical position: 

“Parent” means Rowan Companies plc, a public limited company incorporated under the laws of England and Wales.

 SECTION 2.02. Notices, Etc., to Trustee, Company and the Guarantor. 

With respect solely to the Notes and not to any other series of Securities, Section 1.6 of the Indenture is hereby amended by
replacing the current subsection (a) with the following: 
 (a) Any notice or communication by the Company,
the Guarantor or the Trustee to the others is duly given if in writing and delivered in person or mailed by first class mail (registered or certified, return receipt requested), telecopier or overnight air courier guaranteeing next day delivery, to
the others’ address: 
 If to the Company and/or the Guarantor: 

Rowan Companies, Inc. 
 2800 Post Oak Boulevard, Suite 5450 
 Houston, Texas 77056

 Telephone: (713) 621-7800 

Facsimile: (713) 960-7685 
 Attention: Chief Financial Officer 
 and 

Rowan Companies plc 
 Rowan House Peterseat Drive 
 Altens Industrial Estate 

Aberdeen, AB12 3HT 
 Scotland 
 Telephone: +44 1224 216550 

Facsimile: +44 208 4290982 

  
 Third
Supplemental Indenture 

  
 2 

 Attention: Chief Financial Officer 

with a copy to: 
 Andrews Kurth LLP 
 600 Travis, Suite 4200 

Houston, Texas 77002 
 Telephone: (713) 220-4200 
 Facsimile: (713) 220-4285

 Attention: Robert V. Jewell 

If to the Trustee: 
 U.S. Bank National Association 
 5555 San Felipe, Suite 1150

 Houston, Texas 77056 
 Telephone: (713) 235-9208 
 Facsimile: (713) 235-9213

 Attention: Corporate Trust Services 
 SECTION 2.03. Parent Guarantee. 
 Article Fourteen of the
Indenture shall apply to the Notes. The Parent hereby agrees to be bound by a Securities Guarantee with respect to the Notes and that the Parent shall be a Guarantor of each series of the Notes in accordance with Article Fourteen of the Indenture;
provided, however, that the Securities Guarantee granted hereby shall not apply to any obligations under any series of Securities other than the Notes. The Parent hereby agrees that its Securities Guarantee of the Notes will remain in full
force and effect notwithstanding any failure to endorse on each Note a notation of such Securities Guarantee. 
 With respect
solely to the Notes and not to any other series of Securities, Article Fourteen of the Original Indenture is hereby amended by adding the following Section 14.4 thereto: 
 Section 14.4 Releases. 
 The Parent will be released
and relieved of any obligations under its Securities Guarantee of the Notes immediately upon Legal Defeasance in accordance with Article Thirteen or satisfaction and discharge of this Indenture in accordance with Article Four. The Parent will also
be released and relieved of any obligations under its Securities Guarantee of the Notes immediately upon the merger of the Parent with and into the Company. 
 ARTICLE THREE 
 MISCELLANEOUS 

SECTION 3.01. Certain Trustee Matters. 

The recitals contained herein shall be taken as the statements of the Company, and the Trustee assumes no responsibility for their
correctness. 
 The Trustee makes no representations as to the validity or sufficiency of this Supplemental Indenture or the
Notes or the proper authorization or the due execution hereof or thereof by the Company or the Parent. 
 Except as expressly
set forth herein, nothing in this Supplemental Indenture shall alter the duties, rights or obligations of the Trustee set forth in the Indenture. 

  
 Third
Supplemental Indenture 

  
 3 

 The Trustee makes no representation or warranty as to the validity or sufficiency of the
information contained in the prospectus supplement related to the Notes, except such information which specifically pertains to the Trustee itself, or any information incorporated therein by reference. 

SECTION 3.02. Continued Effect. 
 Except as expressly supplemented and amended by this Supplemental Indenture, the Indenture shall continue in full force and effect in accordance with the provisions thereof, and the Indenture is in all
respects hereby ratified and confirmed. This Supplemental Indenture and all its provisions shall be deemed a part of the Indenture in the manner and to the extent herein and therein provided. 

SECTION 3.03. Governing Law. 
 This Supplemental Indenture shall be governed by and construed in accordance with the laws of the State of New York. 
 SECTION 3.04. Counterparts. 
 This instrument may be executed
in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts shall together constitute but one and the same instrument. 
 (Remainder of Page Intentionally Left Blank) 

  
 Third
Supplemental Indenture 

  
 4 

 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly
executed and delivered, all as of the date first written above. 
  

			
	THE COMPANY:
	
	ROWAN COMPANIES, INC.
		
	By:	 	 /s/ William H. Wells

	Name:	 	William H. Wells
	Title:	 	Senior Vice President, Chief Financial Officer and
		 	Treasurer
	
	
	THE PARENT:
	
	ROWAN COMPANIES PLC
		
	By:	 	 /s/ William H. Wells

	Name:	 	William H. Wells
	Title:	 	Senior Vice President, Chief Financial Officer and Treasurer
	
	TRUSTEE:
	
	U.S. BANK NATIONAL ASSOCIATION
		
	By:	 	 /s/ Mauri J. Cowen

	Name:	 	Mauri J. Cowen
	Title:	 	Vice President

  
 Third
Supplemental Indenture 

  
 5

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