Document:

exv4w1

Exhibit 4.1

EXECUTION COPY

 
 

Arch Coal, Inc.

AS ISSUER

AND

U.S. Bank National Association,

AS TRUSTEE

 

Indenture

Dated as of August 9, 2010

 

SENIOR DEBT SECURITIES

 
 

 

 

CROSS-REFERENCE TABLE

	 	 	 	 	 	 	 
	TIA Sections	 	Indenture Sections
	310

	 	(a)(1)
	 	 	7.10; 12.01	 
	 

	 	(a)(2)
	 	 	12.01	 
	 

	 	(a)(3)
	 	 	7.12; 12.01	 
	 

	 	(a)(4)
	 	 	12.01	 
	 

	 	(a)(5)
	 	 	7.10; 12.01	 
	 

	 	(b)
	 	 	7.03; 7.10; 12.01	 
	 

	 	(c)
	 	 	12.01	 
	311

	 	(a)
	 	 	7.03; 7.11; 12.01	 
	 

	 	(b)
	 	 	7.03; 7.11; 12.01	 
	 

	 	(c)
	 	 	7.03; 7.11; 12.01	 
	312

	 	(a)
	 	 	2.05(a); 12.01	 
	 

	 	(b)
	 	 	12.01; 12.03	 
	 

	 	(c)
	 	 	12.01; 12.03	 
	313

	 	(a)
	 	 	7.06; 12.01	 
	 

	 	(b)(1)
	 	 	7.06; 12.01	 
	 

	 	(b)(2)
	 	 	7.06; 7.07; 12.01	 
	 

	 	(c)
	 	 	7.05; 7.06; 12.01; 12.02(b)	
	 

	 	(d)
	 	 	7.06; 12.01	 
	314

	 	(a)(1)-(3)
	 	 	4.17; 12.01	 
	 

	 	(a)(4)
	 	 	12.01	 
	 

	 	(b)
	 	 	12.01	 
	 

	 	(c)(1)
	 	 	12.01; 12.04(a)	
	 

	 	(c)(2)
	 	 	12.01; 12.04(b)	
	 

	 	(d)
	 	 	12.01	 
	 

	 	(e)
	 	 	12.01; 12.05	 
	 

	 	(f)
	 	 	12.01	 
	315

	 	(a)
	 	 	7.01(b); 12.01	 
	 

	 	(b)
	 	 	7.05; 12.01	 
	 

	 	(c)
	 	 	7.01(a); 12.01	 
	 

	 	(d)
	 	 	7.01(c); 12.01	 
	 

	 	(e)
	 	 	6.11; 12.01	 
	316

	 	(a) (last sentence)
	 	 	2.09; 12.01	 
	 

	 	(a)(1)(A)
	 	 	6.05; 12.01	 
	 

	 	(a)(1)(B)
	 	 	6.04; 12.01	 
	 

	 	(a)(2)
	 	 	12.01	 
	 

	 	(b)
	 	 	6.07; 12.01	 
	 

	 	(c)
	 	 	6.15; 12.01	 
	317

	 	(a)(1)
	 	 	6.08; 12.01	 
	 

	 	(a)(2)
	 	 	6.09;12.01	 
	 

	 	(b)
	 	 	2.04; 12.01	 
	318

	 	(a)
	 	 	12.01	 
	 

	 	(b)
	 	 	12.01	 
	 

	 	(c)
	 	 	12.01	 

 

			
	Note: 	 	 The Cross-Reference Table shall not for any purpose be deemed to be a part of the
Indenture.

i 

 

TABLE OF CONTENTS

	 	 	 	 	 

	ARTICLE 1. DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION
	 	 	1	 
	 
	SECTION 101. DEFINITIONS
	 	 	1	 
	SECTION 102. COMPLIANCE CERTIFICATES AND OPINIONS
	 	 	8	 
	SECTION 103. FORM OF DOCUMENTS DELIVERED TO TRUSTEE
	 	 	9	 
	SECTION 104. ACTS OF HOLDERS; RECORD DATES
	 	 	9	 
	SECTION 105. NOTICES, ETC., TO TRUSTEE AND COMPANY
	 	 	11	 
	SECTION 106. NOTICES TO HOLDERS; WAIVER
	 	 	11	 
	SECTION 107. CONFLICT WITH TRUST INDENTURE ACT
	 	 	12	 
	SECTION 108. EFFECT OF HEADINGS AND TABLE OF CONTENTS
	 	 	12	 
	SECTION 109. SUCCESSORS AND ASSIGNS
	 	 	12	 
	SECTION 110. SEPARABILITY CLAUSE
	 	 	12	 
	SECTION 111. BENEFITS OF INDENTURE
	 	 	12	 
	SECTION 112. GOVERNING LAW
	 	 	12	 
	SECTION 113. LEGAL HOLIDAYS
	 	 	12	 
	 
	ARTICLE 2. SECURITY FORMS
	 	 	13	 
	 
	SECTION 201. FORMS GENERALLY
	 	 	13	 
	SECTION 202. FORM OF FACE OF SECURITY
	 	 	13	 
	SECTION 203. FORM OF REVERSE OF SECURITY
	 	 	15	 
	SECTION 204. FORM OF LEGEND FOR GLOBAL SECURITIES
	 	 	18	 
	SECTION 205. FORM OF TRUSTEE’S CERTIFICATE OF AUTHENTICATION
	 	 	19	 
	 
	ARTICLE 3. THE SECURITIES
	 	 	19	 
	 
	SECTION 301. AMOUNT UNLIMITED; ISSUABLE IN SERIES
	 	 	19	 
	SECTION 302. DENOMINATIONS
	 	 	22	 
	SECTION 303. EXECUTION, AUTHENTICATION, DELIVERY AND DATING
	 	 	22	 
	SECTION 304. TEMPORARY SECURITIES
	 	 	23	 
	SECTION 305. REGISTRATION, REGISTRATION OF TRANSFER AND EXCHANGE
	 	 	24	 
	SECTION 306. MUTILATED, DESTROYED, LOST OR STOLEN SECURITIES
	 	 	26	 
	SECTION 307. PAYMENT OF INTEREST; INTEREST RIGHTS PRESERVED
	 	 	26	 
	SECTION 308. PERSONS DEEMED OWNERS
	 	 	27	 
	SECTION 309. CANCELLATION
	 	 	28	 
	SECTION 310. COMPUTATION OF INTEREST
	 	 	28	 
	 
	ARTICLE 4. SATISFACTION AND DISCHARGE
	 	 	28	 
	 
	SECTION 401. SATISFACTION AND DISCHARGE OF INDENTURE
	 	 	28	 
	SECTION 402. APPLICATION OF TRUST MONEY
	 	 	29	 
	 
	ARTICLE 5. REMEDIES
	 	 	29	 
	 
	SECTION 501. EVENTS OF DEFAULT
	 	 	29	 
	SECTION 502. ACCELERATION OF MATURITY; RESCISSION AND ANNULMENT
	 	 	31	 
	SECTION 503. COLLECTION OF INDEBTEDNESS AND SUITS FOR ENFORCEMENT; TRUSTEE
	 	 	32	 
	SECTION 504. TRUSTEE MAY FILE PROOFS OF CLAIM
	 	 	32	 
	SECTION 505. TRUSTEE MAY ENFORCE CLAIMS WITHOUT POSSESSION OF SECURITIES
	 	 	33	 
	SECTION 506. APPLICATION OF MONEY COLLECTED
	 	 	33	 

ii 

 

	 	 	 	 	 

	SECTION 507. LIMITATION ON SUITS
	 	 	33	 
	SECTION 508. UNCONDITIONAL RIGHT OF HOLDERS TO RECEIVE PRINCIPAL, PREMIUM AND INTEREST AND
TO CONVERT
	 	 	34	 
	SECTION 509. RESTORATION OF RIGHTS AND REMEDIES
	 	 	34	 
	SECTION 510. RIGHTS AND REMEDIES CUMULATIVE
	 	 	34	 
	SECTION 511. DELAY OR OMISSION NOT WAIVER
	 	 	34	 
	SECTION 512. CONTROL BY HOLDERS
	 	 	34	 
	SECTION 513. WAIVER OF PAST DEFAULTS
	 	 	35	 
	SECTION 514. UNDERTAKING FOR COSTS
	 	 	35	 
	 
	ARTICLE 6. THE TRUSTEE
	 	 	35	 
	 
	SECTION 601. CERTAIN DUTIES AND RESPONSIBILITIES
	 	 	35	 
	SECTION 602. NOTICE OF DEFAULTS
	 	 	36	 
	SECTION 603. CERTAIN RIGHTS OF TRUSTEE
	 	 	37	 
	SECTION 604. NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF SECURITIES
	 	 	38	 
	SECTION 605. MAY HOLD SECURITIES
	 	 	38	 
	SECTION 606. MONEY HELD IN TRUST
	 	 	38	 
	SECTION 607. COMPENSATION AND REIMBURSEMENT
	 	 	38	 
	SECTION 608. CONFLICTING INTERESTS
	 	 	39	 
	SECTION 609. CORPORATE TRUSTEE REQUIRED; ELIGIBILITY
	 	 	39	 
	SECTION 610. RESIGNATION AND REMOVAL; APPOINTMENT OF SUCCESSOR
	 	 	39	 
	SECTION 611. ACCEPTANCE OF APPOINTMENT BY SUCCESSOR
	 	 	41	 
	SECTION 612. MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO BUSINESS
	 	 	42	 
	SECTION 613. PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY
	 	 	42	 
	SECTION 614. APPOINTMENT OF AUTHENTICATING AGENT
	 	 	42	 
	 
	ARTICLE 7. HOLDERS’ LISTS AND REPORTS BY TRUSTEE AND COMPANY
	 	 	43	 
	 
	SECTION 701. COMPANY TO FURNISH TRUSTEE NAMES AND ADDRESSES OF HOLDERS
	 	 	43	 
	SECTION 702. PRESERVATION OF INFORMATION; COMMUNICATIONS TO HOLDERS
	 	 	44	 
	SECTION 703. REPORTS BY TRUSTEE
	 	 	44	 
	 
	ARTICLE 8. CONSOLIDATION, MERGER OR SALE OF ASSETS
	 	 	44	 
	 
	SECTION 801. CONSOLIDATION, MERGER OR SALE OF ASSETS BY THE COMPANY
	 	 	44	 
	SECTION 802. SUCCESSOR SUBSTITUTED
	 	 	45	 
	 
	ARTICLE 9. SUPPLEMENTAL INDENTURES
	 	 	45	 
	 
	SECTION 901. SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF HOLDERS
	 	 	45	 
	SECTION 902. SUPPLEMENTAL INDENTURES WITH CONSENT OF HOLDERS
	 	 	46	 
	SECTION 903. EXECUTION OF SUPPLEMENTAL INDENTURES
	 	 	47	 
	SECTION 904. EFFECT OF SUPPLEMENTAL INDENTURES
	 	 	47	 
	SECTION 905. CONFORMITY WITH THE TRUST INDENTURE ACT
	 	 	48	 
	SECTION 906. REFERENCE IN SECURITIES TO SUPPLEMENTAL INDENTURE
	 	 	48	 

iii 

 

	 	 	 	 	 

	ARTICLE 10. COVENANTS
	 	 	48	 
	 
	SECTION 1001. PAYMENT OF PRINCIPAL, PREMIUM AND INTEREST
	 	 	48	 
	SECTION 1002. MAINTENANCE OF OFFICE OR AGENCY
	 	 	48	 
	SECTION 1003. MONEY FOR SECURITIES PAYMENTS TO BE HELD IN TRUST
	 	 	48	 
	SECTION 1004. COMMISSION REPORTS
	 	 	49	 
	SECTION 1005. COMPLIANCE CERTIFICATE.
	 	 	50	 
	SECTION 1006. STAY, EXTENSION AND USURY LAWS
	 	 	50	 
	SECTION 1007. CORPORATE EXISTENCE
	 	 	50	 
	SECTION 1008. WAIVER OF CERTAIN COVENANTS
	 	 	51	 
	SECTION 1009. TAXES
	 	 	51	 
	SECTION 1010. LIMITATION ON LIENS
	 	 	51	 
	SECTION 1011. LIMITATION ON SALE AND LEASEBACK TRANSACTIONS
	 	 	52	 
	SECTION 1012. EXEMPTED INDEBTEDNESS
	 	 	53	 
	 
	ARTICLE 11. REDEMPTION OF SECURITIES
	 	 	53	 
	 
	SECTION 1101. APPLICABILITY OF ARTICLE
	 	 	53	 
	SECTION 1102. ELECTION TO REDEEM; NOTICE TO TRUSTEE
	 	 	53	 
	SECTION 1103. SELECTION OF TRUSTEE OF SECURITIES TO BE REDEEMED
	 	 	53	 
	SECTION 1104. NOTICE OF REDEMPTION
	 	 	54	 
	SECTION 1105. DEPOSIT OF REDEMPTION PRICE
	 	 	54	 
	SECTION 1106. SECURITIES PAYABLE ON REDEMPTION DATE
	 	 	55	 
	SECTION 1107. SECURITIES REDEEMED IN PART
	 	 	55	 
	 
	ARTICLE 12. SINKING FUNDS
	 	 	55	 
	 
	SECTION 1201. APPLICABILITY OF ARTICLE
	 	 	55	 
	SECTION 1202. SATISFACTION OF SINKING FUND PAYMENTS WITH SECURITIES
	 	 	56	 
	SECTION 1203. REDEMPTION OF SECURITIES FOR SINKING FUND
	 	 	56	 
	 
	ARTICLE 13. DEFEASANCE AND COVENANT DEFEASANCE
	 	 	56	 
	 
	SECTION 1301. APPLICABILITY OF ARTICLE; COMPANY'S POTION TO ELECT DEFEASANCE OR COVENANT DEFEASANCE
	 	 	56	 
	SECTION 1302. DEFEASANCE AND DISCHARGE
	 	 	56	 
	SECTION 1303. COVENANT DEFEASANCE
	 	 	57	 
	SECTION 1304. CONDITIONS TO DEFEASANCE OR COVENANT DEFEASANCE
	 	 	57	 
	SECTION 1305. DEPOSITED MONEY AND U.S. GOVERNMENT OBLIGATIONS TO BE HELD IN TRUST;
MISCELLANEOUS PROVISIONS
	 	 	59	 
	SECTION 1306. REINSTATEMENT
	 	 	60	 
	SECTION 1307. QUALIFYING TRUSTEE
	 	 	60	 
	 
	ARTICLE 14. GUARANTEES
	 	 	61	 
	 
	SECTION 1401. APPLICABILITY OF ARTICLE
	 	 	61	 
	SECTION 1402. GUARANTEE
	 	 	61	 
	SECTION 1403. OBLIGATIONS OF THE GUARANTOR UNCONDITIONAL
	 	 	62	 
	SECTION 1404. ARTICLE 14 NOT TO PREVENT EVENTS OF DEFAULT
	 	 	63	 
	SECTION 1405. EXECUTION AND DELIVERY OF GUARANTEE
	 	 	63	 

NOTE: This Table of Contents shall not, for any purpose, be deemed to be a part of the Indenture.

iv 

 

     INDENTURE dated as of August 9, 2010 between ARCH COAL, INC., a corporation duly organized and
existing under the laws of the State of Delaware (herein sometimes called the “Company”), and U.S.
Bank National Association, a New York banking corporation, as Trustee (herein sometimes called the
“Trustee”).

RECITALS OF THE COMPANY

     The Company has duly authorized the execution and delivery of this Indenture to provide for
the issuance from time to time of its debentures, notes or other evidences of indebtedness (herein
called the “Securities”), to be issued in one or more series as this Indenture provides.

     All things necessary to make this Indenture a valid agreement of the Company, in accordance
with its terms, have been done.

     NOW, THEREFORE, THIS INDENTURE WITNESSETH:

     For and in consideration of the promises and the purchase of the Securities by the Holders
thereof, it is mutually agreed, for the equal and proportionate benefit of all Holders of the
Securities or of series thereof, as follows:

ARTICLE 1.

DEFINITIONS AND OTHER PROVISIONS

OF GENERAL APPLICATION

     SECTION 101. DEFINITIONS. For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

     (1) the terms defined in this Article have the meanings assigned to them in this Article and
include the plural as well as the singular;

     (2) all other terms used herein which are defined in the Trust Indenture Act, either directly
or by reference therein, have the meanings assigned to them therein;

     (3) all accounting terms not otherwise defined herein have the meanings assigned to them in
accordance with generally accepted accounting principles, and, except as otherwise herein expressly
provided, the terms “generally accepted accounting principles” or “GAAP” with respect to any
computation required or permitted hereunder shall mean such accounting principles as are generally
accepted at the date hereof;

     (4) unless the context otherwise requires, any reference to an Article or a Section refers to
an Article or a Section, as the case may be, of this Indenture; and

     (5) the words herein, hereof, and hereunder and other words of similar import refer to this
Indenture as a whole and not to any particular Article, Section or other subdivision.

     “Act of Holder” has the meaning specified in Section 104.

1

 

     “Affiliate” of any specified Person means any other Person directly or indirectly controlling
or controlled by or under direct or indirect common control with such specified Person. For the
purposes of this definition, control when used with respect to any specified Person means the power
to direct the management and policies of such Person, directly or indirectly, whether through the
ownership of voting securities, by contract or otherwise; and the terms controlling and controlled
have meanings correlative to the foregoing.

     “Attributable Debt” in respect of a Sale and Leaseback Transaction, means, as of any
particular time, the present value (discounted at the rate of interest implicit in the lease
involved in such Sale and Leaseback Transaction, as determined by the Company in good faith) of the
obligation of the lessee thereunder for rental payments (excluding, however, any amounts required
to be paid by the lessee, whether or not designated as rent or additional rent, on account of
maintenance and repairs, insurance, taxes, assessments, water rates or similar charges or any
amounts required to be paid by the lessee thereunder contingent upon the monetary inflation or the
amount of sales, maintenance and repairs, insurance, taxes, assessments, water rates or similar
charges) during the remaining term of the lease (including any period for which the lease has been
extended or may, at the option of the lessor, be extended).

     “Authenticating Agent” means any Person authorized by the Trustee pursuant to Section 614 to
act on behalf of the Trustee to authenticate Securities of one or more series.

     “Board of Directors” means either the board of directors of the Company or any duly authorized
committee of that board.

     “Board Resolution” means (i) a copy of a resolution certified by the Secretary or an Assistant
Secretary of the Company to have been duly adopted by the Board of Directors and to be in full
force and effect on the date of such certification, or (ii) a certificate signed by the authorized
officer or officers of the Company to whom the Board of Directors of the Company has delegated its
authority, and in each case, delivered to the Trustee.

     “Business Day,” when used with respect to any Place of Payment, means each Monday, Tuesday,
Wednesday, Thursday and Friday which is not a day on which banking institutions in that Place of
Payment are authorized or obligated by law or executive order to close.

     “Commission” means the U.S. Securities and Exchange Commission, from time to time constituted,
created under the Exchange Act, or, if at any time after the execution of this instrument such
Commission is not existing and performing the duties now assigned to it under the Trust Indenture
Act, then the body performing such duties at such time.

     “Company” means the Person named as the Company in the first paragraph of this instrument
until a successor Person shall have become such pursuant to the applicable provisions of this
Indenture, and thereafter Company shall mean such successor Person.

     “Company Request” or “Company Order” means a written request or order signed in the name of
the Company by its Chairman of the Board, the Chief Executive Officer, the President, the Chief
Financial Officer or any Vice President, and by the Treasurer, an Assistant Treasurer, the
Secretary or an Assistant Secretary, and delivered to the Trustee.

2

 

     “Consolidated Net Tangible Assets,” which may be determined as of a date not more than 60 days
prior to the happening of an event for which such determination is being made, means the total of
all the assets appearing on the consolidated balance sheet of the Company and its Subsidiaries,
less the following:

	 	(i)	 	current liabilities;
	 
	 	(ii)	 	intangible assets, including without limitation, such items as goodwill,
trademarks, trade names, patents and unamortized debt discount and expense carried as
an asset on said balance sheet; and
	 
	 	(iii)	 	appropriate adjustments on account of minority interests of other Persons
holding stock in any Subsidiary of the Company.

     “Corporate Trust Office” means the office of the Trustee, at which at any particular time its
corporate trust business shall be principally administered, which office at the date of execution
of this Indenture is located at One U.S. Bank Plaza, Mail Code SL-MO-T6CT, St. Louis, Missouri
63101, Attention: Corporate Trust Department or such other address as the Trustee may designate
from time to time by notice to the Holders and the Company, or the principal corporate trust office
of any successor Trustee (or such other address as such successor Trustee may designate from time
to time by notice to the Holders and to the Company).

     “Corporation” means a corporation, association, company, joint-stock company or business
trust.

     “Covenant Defeasance” has the meaning specified in Section 1303.

     “Debt” means indebtedness for money borrowed.

     “Defaulted Interest” has the meaning specified in Section 307.

     “Defeasance” has the meaning specified in Section 1302.

     “Depositary” means, with respect to Securities of any series issuable in whole or in part in
the form of one or more Global Securities, a clearing agency registered under the Exchange Act that
is designated to act as Depositary for such Securities as contemplated by Section 301.

     “Domestic Subsidiary” means a Subsidiary formed under the laws of, or conducting its principal
operations within, the Unites States or any State or territory thereof.

     “Eligible Guarantors” means the Company’s wholly-owned domestic subsidiaries.

     “Event of Default” has the meaning specified in Section 501.

     “Exchange Act” means the Securities Exchange Act of 1934 and any statute successor thereto, in
each case as amended from time to time.

3

 

     “Expiration Date” means a date, designated in accordance with Section 104, by which Holders
must take an action contemplated by Section 104 for such action to be effective.

     “Foreign Government Obligation” has the meaning specified in Section 1304.

     “Funded Debt” means all indebtedness for money borrowed having a maturity of more than twelve
months from the date of the most recent consolidated balance sheet of the Company and its
Subsidiaries or renewable and extendable beyond twelve months at the option of the borrower and all
obligations in respect of lease rentals that under GAAP would be shown on the consolidated balance
sheet of the Company as a liability item other than a current liability; provided, however, that
Funded Debt shall not include any of the foregoing to the extent that such indebtedness or
obligations are not required by GAAP to be shown on the balance sheet of the Company.

     “generally accepted accounting principles” or “GAAP” has the meaning specified in Section
101(3).

     “Global Security” means a Security that evidences all or part of the Securities of any series
and bears the legend set forth in Section 204 (or such legend as may be specified as contemplated
by Section 301 for such Securities).

     “Guarantee” has the meaning specified in Section 1402.

     “Guarantor” has the meaning specified in Section 301.

     “Holder” means a Person in whose name a Security is registered in the Security Register.

     “Indebtedness” means, with respect to a Person, (i) all liabilities representing borrowed
money or purchase money obligations as shown on the liability side of a balance sheet, (ii) all
indebtedness secured by any Lien existing on property owned subject to such Lien, whether or not
such secured indebtedness has been assumed and (iii) contingent obligations in respect of, or to
purchase or otherwise acquire, any such indebtedness of others described in the foregoing clauses
(i) or (ii) above, including guarantees and endorsements (other than for purposes of collection in
the ordinary course of business of any such indebtedness).

     “Indenture” means this instrument as originally executed and as it may from time to time be
supplemented or amended by one or more indentures supplemental hereto entered into pursuant to the
applicable provisions hereof, including, for all purposes of this instrument and any such
supplemental indenture, the provisions of the Trust Indenture Act that are deemed to be a part of
and govern this instrument and any such supplemental indenture, respectively. The term Indenture
shall also include the terms of particular series of Securities established as contemplated by
Section 301.

     “interest,” when used with respect to an Original Issue Discount Security which by its terms
bears interest only after Maturity, means interest payable after Maturity.

     “Interest Payment Date,” when used with respect to any Security, means the Stated Maturity of
an installment of interest on such Security.

4

 

     “Investment Company Act” means the Investment Company Act of 1940 and any statute successor
thereto, in each case as amended from time to time.

     “Lien” means any mortgage, pledge, lien, encumbrance, charge or security interest of any kind,
excluding certain liens relating to taxes, easements and similar liens arising in the ordinary
course of business.

     “Maturity,” when used with respect to any Security, means the date on which the principal of
such Security or an installment of principal becomes due and payable as therein or herein provided,
whether at the Stated Maturity or by declaration of acceleration, call for redemption or otherwise.

     “Notice of Default” means a written notice of the kind specified in Section 501(4).

     “Officers’ Certificate” means a certificate signed by the Chairman of the Board, the Chief
Executive Officer, the President, the Chief Financial Officer or any Vice President, and by the
Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary, of the Company, and
delivered to the Trustee.

     “Opinion of Counsel” means a written opinion of counsel, who may be counsel for the Company,
and who shall be acceptable to the Trustee.

     “Original Issue Discount Security” means any Security which provides for an amount less than
the principal amount thereof to be due and payable upon a declaration of acceleration of the
Maturity thereof pursuant to Section 502.

     “Outstanding,” when used with respect to Securities, means, as of the date of determination,
all Securities theretofore authenticated and delivered under this Indenture, except:

     (1) Securities theretofore cancelled by the Trustee or delivered to the Trustee for
cancellation;

     (2) Securities for whose payment or redemption money in the necessary amount has been
theretofore deposited with the Trustee or any Paying Agent (other than the Company) in trust or set
aside and segregated in trust by the Company (if the Company shall act as its own Paying Agent) for
the Holders of such Securities; provided that, if such Securities are to be redeemed, notice of
such redemption has been duly given pursuant to this Indenture or provision therefor satisfactory
to the Trustee has been made;

     (3) Securities as to which Defeasance has been effected pursuant to Section 1302; and

     (4) Securities that have been paid pursuant to Section 306 or in exchange for or in lieu of
which other Securities have been authenticated and delivered pursuant to this Indenture, other than
any such Securities in respect of which there shall have been presented to the Trustee proof
satisfactory to it that such Securities are held by a bona fide purchaser in whose hands such
Securities are valid obligations of the Company; provided, however, that in determining whether the
Holders of the requisite principal amount of the Outstanding Securities have given, made or taken
any request, demand, authorization, direction, notice, consent, waiver or other action

5

 

hereunder as of any date, (A) the principal amount of an Original Issue Discount Security
which shall be deemed to be Outstanding shall be the amount of the principal thereof which would be
due and payable as of such date upon acceleration of the Maturity thereof to such date pursuant to
Section 502, (B) if, as of such date, the principal amount payable at the Stated Maturity of a
Security is not determinable, the principal amount of such Security which shall be deemed to be
Outstanding shall be the amount as specified or determined as contemplated by Section 301, (C) the
principal amount of a Security denominated in one or more foreign currencies or currency units
which shall be deemed to be Outstanding shall be the U.S. dollar equivalent, determined as of such
date in the manner provided as contemplated by Section 301, of the principal amount of such
Security (or, in the case of a Security described in Clause (A) or (B) above, of the amount
determined as provided in such Clause), and (D) Securities owned by the Company or any other
obligor upon the Securities or any Affiliate of the Company or of such other obligor shall be
disregarded and deemed not to be Outstanding, except that, in determining whether the Trustee shall
be protected in relying upon any such request, demand, authorization, direction, notice, consent,
waiver or other action, only Securities which a Responsible Officer of the Trustee actually knows
to be so owned shall be so disregarded. Securities so owned which have been pledged in good faith
may be regarded as Outstanding if the pledgee establishes to the satisfaction of the Trustee the
pledgee’s right so to act with respect to such Securities and that the pledgee is not the Company
or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor.

     “Paying Agent” means any Person authorized by the Company to pay the principal of or any
premium or interest on any Securities on behalf of the Company.

     “Person” means an individual, corporation, partnership, joint venture, limited liability
company, association, joint-stock company, trust, unincorporated organization or government or any
agency or political subdivision thereof.

     “Place of Payment,” when used with respect to the Securities of any series, means the place or
places where the principal of any premium and interest on the Securities of that series are payable
as specified as contemplated by Section 301.

     “Predecessor Security” of any particular Security means every previous Security evidencing all
or a portion of the same debt as that evidenced by such particular Security; and, for the purposes
of this definition, any Security authenticated and delivered under Section 306 in exchange for or
in lieu of a mutilated, destroyed, lost or stolen Security shall be deemed to evidence the same
debt as the mutilated, destroyed, lost or stolen Security.

     “Principal Property” means any coal production or processing facility, warehouse, office
building or parcel of real property (including fixtures but excluding leases and other contract
rights which might otherwise be deemed real property) owned by the Company or any Subsidiary,
whether owned on the date of the Indenture or thereafter, provided each such plant, warehouse,
office building or parcel of real property has a gross book value (without deduction for any
depreciation reserves) at the date as of which the determination is being made of in excess of two
percent of the Consolidated Net Assets of the Company and the Subsidiaries, other than any such
plant, warehouse, office building or parcel of real property or portion thereof that, in the
opinion of the Board of Directors (evidenced by a Board Resolution delivered to the

6

 

Trustee), is not of material importance to the business conducted by the Company and its
Subsidiaries taken as a whole.

     “Redemption Date,” when used with respect to any Security to be redeemed, in whole or in part,
means the date fixed for such redemption by or pursuant to this Indenture.

     “Redemption Price,” when used with respect to any Security to be redeemed, means the price at
which it is to be redeemed pursuant to this Indenture.

     “Regular Record Date” for the interest payable on any Interest Payment Date on the Securities
of any series means the date specified for that purpose as contemplated by Section 301.

     “Responsible Officer,” when used with respect to the Trustee, means any officer within the
Corporate Trust Office of the Trustee including any vice president, the secretary, any assistant
secretary, the treasurer, any assistant treasurer, the cashier, any assistant cashier, any trust
officer, any senior trust officer or assistant trust officer or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above designated officers
and also means, with respect to a particular corporate trust matter, any other officer to whom such
matter is referred because of his knowledge of and familiarity with the particular subject.

     “Sale and Leaseback Transaction” means any arrangement with any Person providing for the
leasing to the Company or any Domestic Subsidiary of the Company of any Principal Property or
portion thereof (except for temporary leases for a term, including any renewal thereof, of not more
than 36 months and except for leases between the Company and a Subsidiary or between Subsidiaries),
which Principal Property (or portion thereof) has been or is to be sold or transferred by the
Company or such Domestic Subsidiary to such Person.

     “Secured Debt” means Indebtedness for borrowed money and any Funded Debt that is secured by a
security interest in (a) any Principal Property or (b) any shares of capital stock or Indebtedness
of any Subsidiary.

     “Securities” has the meaning stated in the first recital of this Indenture and more
particularly means any Securities authenticated and delivered under this Indenture.

     “Securities Act” means the Securities Act of 1933 and any statute successor thereto, in each
case as amended from time to time.

     “Security Registrar” shall mean the Person appointed to register Securities and transfers of
Securities in the Security Register, as contemplated by Section 305.

     “Security Register” has the meaning specified in Section 305.

     “Significant Subsidiary” means any direct or indirect Subsidiary of the Company that would be
a “significant subsidiary” as defined in Article 1, Rule 1-02 of Regulation S-X, promulgated
pursuant to the Securities Act of 1933, as amended, as such regulation is in effect on the date
hereof.

7

 

     “Special Record Date” for the payment of any Defaulted Interest means a date fixed by the
Trustee pursuant to Section 307.

     “Stated Maturity,” when used with respect to any Security or any installment of principal
thereof or interest thereon, means the date specified in such Security as the fixed date on which
the principal of such Security or such installment of principal or interest is due and payable.

     “Subsidiary” means with respect to any Person, any corporation, association or other business
entity of which more than 50% of the outstanding voting stock is owned, directly or indirectly, by
such Person and one or more Subsidiaries of such Person (or combination thereof). Unless otherwise
specified, “Subsidiary” means a Subsidiary of the Company.

     “Trust Indenture Act” means the Trust Indenture Act of 1939 as in force at the date as of
which this instrument was executed; provided, however, that in the event the Trust Indenture Act of
1939 is amended after such date, “Trust Indenture Act” means, to the extent required by any such
amendment, the Trust Indenture Act of 1939 as so amended.

     “Trustee” means the Person named as the Trustee in the first paragraph of this instrument
until a successor Trustee shall have become such pursuant to the applicable provisions of this
Indenture, and thereafter Trustee shall mean or include each Person who is then a Trustee
hereunder, and if at any time there is more than one such Person, Trustee as used with respect to
the Securities of any series shall mean the Trustee with respect to Securities of that series.

     “U.S. Government Obligation” has the meaning specified in Section 1304.

     “Vice President,” when used with respect to the Company or the Trustee, means any vice
president, whether or not designated by a number or a word or words added before or after the title
Vice President.

     SECTION 102. COMPLIANCE CERTIFICATES AND OPINIONS. Upon any application or request by the
Company to the Trustee to take any action under any provision of this Indenture, the Company shall
furnish to the Trustee such certificates and opinions as may be required under the Trust Indenture
Act. Each such certificate or opinion shall be given in the form of an Officers’ Certificate, if
to be given by an officer of the Company, or an Opinion of Counsel, if to be given by counsel, and
shall comply with the requirements of the Trust Indenture Act and any other requirements set forth
in this Indenture.

     Every certificate or opinion with respect to compliance with a condition or covenant provided
for in this Indenture (other than the Officers’ Certificate provided for in Section 1005 hereof)
shall include:

     (1) a statement that each individual signing such certificate or opinion has read such
covenant or condition and the definitions herein relating thereto;

     (2) a brief statement as to the nature and scope of the examination or investigation upon
which the statements or opinions contained in such certificate or opinion are based;

8

 

     (3) a statement that, in the opinion of each such individual, he has made such examination or
investigation as is necessary to enable him to express an informed opinion as to whether or not
such covenant or condition has been complied with; and

     (4) a statement as to whether, in the opinion of each such individual, such condition or
covenant has been complied with.

     SECTION 103. FORM OF DOCUMENTS DELIVERED TO TRUSTEE. In any case where several matters are
required to be certified by, or covered by an opinion of, any specified Person, it is not necessary
that all such matters be certified by, or covered by the opinion of, only one such Person, or that
they be so certified or covered by only one document, but one such Person may certify or give an
opinion with respect to some matters and one or more other such Persons as to other matters, and
any such Person may certify or give an opinion as to such matters in one or several documents.

     Any certificate or opinion of an officer of the Company may be based, insofar as it relates to
legal matters, upon an opinion of counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the opinion with respect to the matters upon which his
certificate or opinion is based is erroneous. Any such certificate or opinion of counsel may be
based, insofar as it relates to factual matters, upon a certificate of, or representations by, an
officer or officers of the Company stating that the information with respect to such factual
matters is in the possession of the Company, unless such counsel knows, or in the exercise of
reasonable care should know, that the certificate or representations with respect to such matters
are erroneous.

     Where any Person is required to make, give or execute two or more applications, requests,
consents, certificates, statements, opinions or other instruments under this Indenture, they may,
but need not, be consolidated and form one instrument.

     SECTION 104. ACTS OF HOLDERS; RECORD DATES. Any request, demand, authorization, direction,
notice, consent, waiver or other action provided or permitted by this Indenture to be given, made
or taken by Holders may be embodied in and evidenced by one or more instruments of substantially
similar tenor signed by such Holders in person or by agent duly appointed in writing; and, except
as herein otherwise expressly provided, such action shall become effective when such instrument or
instruments are delivered to the Trustee and, where it is hereby expressly required, to the
Company. Such instrument or instruments (and the action embodied therein and evidenced thereby) are
herein sometimes referred to as the Act of the Holders signing such instrument or instruments.
Proof of execution of any such instrument or of a writing appointing any such agent shall be
sufficient for any purpose of this Indenture and (subject to Section 601) conclusive in favor of
the Trustee and the Company, if made in the manner provided in this Section.

     The fact and date of the execution by any Person of any such instrument or writing may be
proved by the affidavit of a witness of such execution or by a certificate of a notary public or
other officer authorized by law to take acknowledgments of deeds, certifying that the individual
signing such instrument or writing acknowledged to him the execution thereof. Where such execution
is by a signer acting in a capacity other than his individual capacity, such certificate or

9

 

affidavit shall also constitute sufficient proof of his authority. The fact and date of the
execution of any such instrument or writing, or the authority of the Person executing the same, may
also be proved in any other manner which the Trustee deems sufficient.

     The ownership of Securities shall be proved by the Security Register.

     Any request, demand, authorization, direction, notice, consent, waiver or other Act of the
Holder of any Security shall bind every future Holder of the same Security and the Holder of every
Security issued upon the registration of transfer thereof or in exchange therefor or in lieu
thereof in respect of anything done, omitted or suffered to be done by the Trustee or the Company
in reliance thereon, whether or not notation of such action is made upon such Security.

     The Company may set any day as a record date for the purpose of determining the Holders of
Outstanding Securities of any series entitled to give, make or take any request, demand,
authorization, direction, notice, consent, waiver or other action provided or permitted by this
Indenture to be given, made or taken by Holders of Securities of such series, provided that the
Company may not set a record date for, and the provisions of this paragraph shall not apply with
respect to, the giving or making of any notice, declaration, request or direction referred to in
the next paragraph. If any record date is set pursuant to this paragraph, the Holders of
Outstanding Securities of the relevant series on such record date, and no other Holders, shall be
entitled to take the relevant action, whether or not such Holders remain Holders after such record
date; provided that no such action shall be effective hereunder unless taken on or prior to the
applicable Expiration Date by Holders of the requisite principal amount of Outstanding Securities
of such series on such record date. Nothing in this paragraph shall be construed to prevent the
Company from setting a new record date for any action for which a record date has previously been
set pursuant to this paragraph (whereupon the record date previously set shall automatically and
with no action by any Person be cancelled and of no effect), and nothing in this paragraph shall be
construed to render ineffective any action taken by Holders of the requisite principal amount of
Outstanding Securities of the relevant series on the date such action is taken. Promptly after any
record date is set pursuant to this paragraph, the Company, at its own expense, shall cause notice
of such record date, the proposed action by Holders and the applicable Expiration Date to be given
to the Trustee in writing and to each Holder of Securities of the relevant series in the manner set
forth in Section 106.

     The Trustee may set any day as a record date for the purpose of determining the Holders of
Outstanding Securities of any series entitled to join in the giving or making of (i) any Notice of
Default, (ii) any declaration of acceleration referred to in Section 502, (iii) any request to
institute proceedings referred to in Section 507(2) or (iv) any direction referred to in Section
512, in each case with respect to Securities of such series. If any record date is set pursuant to
this paragraph, the Holders of Outstanding Securities of such series on such record date, and no
other Holders, shall be entitled to join in such notice, declaration, request or direction, whether
or not such Holders remain Holders after such record date; provided that no such action shall be
effective hereunder unless taken on or prior to the applicable Expiration Date by Holders of the
requisite principal amount of Outstanding Securities of such series on such record date. Nothing
in this paragraph shall be construed to prevent the Trustee from setting a new record date for any
action for which a record date has previously been set pursuant to this paragraph (whereupon the
record date previously set shall automatically and with no action by any Person be cancelled and

10

 

of no effect), and nothing in this paragraph shall be construed to render ineffective any
action taken by Holders of the requisite principal amount of Outstanding Securities of the relevant
series on the date such action is taken. Promptly after any record date is set pursuant to this
paragraph, the Trustee, at the Company’s expense, shall cause notice of such record date, the
proposed action by Holders and the applicable Expiration Date to be given to the Company in writing
and to each Holder of Securities of the relevant series in the manner set forth in Section 106.

     With respect to any record date set pursuant to this Section, the party hereto which sets such
record dates may designate any date as the Expiration Date and from time to time may change the
Expiration Date to any earlier or later day; provided that no such change shall be effective unless
notice of the proposed new Expiration Date is given to the other party hereto in writing, and to
each Holder of Securities of the relevant series in the manner set forth in Section 106, on or
prior to the existing Expiration Date. If an Expiration Date is not designated with respect to any
record date set pursuant to this Section, the party hereto which sets such record date shall be
deemed to have initially designated the 180th day after such record date as the Expiration Date
with respect thereto, subject to its right to change the Expiration Date as provided in this
paragraph. Notwithstanding the foregoing, no Expiration Date shall be later than the 180th day
after the applicable record date.

     Without limiting the foregoing, a Holder entitled hereunder to give or take any action
hereunder with regard to any particular Security may do so with regard to all or any part of the
principal amount of such Security or by one or more duly appointed agents each of which may do so
pursuant to such appointment with regard to all or any part of such principal amount.

     SECTION 105. NOTICES, ETC., TO TRUSTEE AND COMPANY. Any request, demand, authorization,
direction, notice, consent, waiver or Act of Holders or other document provided or permitted by
this Indenture to be made upon, given or furnished to, or filed with,

     (1) the Trustee by any Holder or by the Company shall be sufficient for every purpose
hereunder if made, given, furnished or filed in writing to or with the Trustee at U.S. Bank
National Association, One U.S. Bank Plaza, Mail Code SL-MO-T6CT, St. Louis, Missouri 63101,
Attention: Corporate Trust Department, or at any other address previously furnished in writing to
the Company and the Holders by the Trustee, or

     (2) the Company by the Trustee or by any Holder shall be sufficient for every purpose
hereunder (unless otherwise herein expressly provided) if in writing and mailed, first-class
postage prepaid, to the Company addressed to it at the address of its principal office specified in
the first paragraph of this instrument, Attn. Secretary, or at any other address previously
furnished in writing to the Trustee by the Company.

     SECTION 106. NOTICES TO HOLDERS; WAIVER. Where this Indenture provides for notice to Holders
of any event, such notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, first-class postage prepaid, to each Holder affected by such event, at
his address as it appears in the Security Register, not later than the latest date (if any), and
not earlier than the earliest date (if any), prescribed for the giving of such notice. In any case
where notice to Holders is given by mail, neither the failure to mail such

11

 

notice, nor any defect in any notice so mailed, to any particular Holder shall affect the
sufficiency of such notice with respect to other Holders. Where this Indenture provides for notice
in any manner, such notice may be waived in writing by the Person entitled to receive such notice,
either before or after the event, and such waiver shall be the equivalent of such notice. Waivers
of notice by Holders shall be filed with the Trustee, but such filing shall not be a condition
precedent to the validity of any action taken in reliance upon such waiver.

     In case, by reason of the suspension of regular mail service or by reason of any other cause,
it shall be impracticable to give such notice by mail, then such notification as shall be made with
the approval of the Trustee shall constitute a sufficient notification for every purpose hereunder.

     SECTION 107. CONFLICT WITH TRUST INDENTURE ACT. If any provision hereof limits, qualifies or
conflicts with a provision of the Trust Indenture Act that is required under such Act to be a part
of and govern this Indenture, the latter provision shall control. If any provision of this
Indenture modifies or excludes any provision of the Trust Indenture Act that may be so modified or
excluded, the latter provision shall be deemed to apply to this Indenture as so modified or to be
excluded, as the case may be.

     SECTION 108. EFFECT OF HEADINGS AND TABLE OF CONTENTS. The Article and Section headings
herein and the Table of Contents are for convenience only and shall not affect the construction
hereof.

     SECTION 109. SUCCESSORS AND ASSIGNS. All covenants and agreements in this Indenture by the
Company shall bind its successors and assigns, whether so expressed or not.

     SECTION 110. SEPARABILITY CLAUSE. In case any provision in this Indenture or in the
Securities shall be invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

     SECTION 111. BENEFITS OF INDENTURE. Nothing in this Indenture or in the Securities, express
or implied, shall give to any Person, other than the parties hereto and their successors hereunder
and the Holders, any benefit or any legal or equitable right, remedy or claim under this Indenture.

     SECTION 112. GOVERNING LAW. This Indenture and the Securities shall be governed by and
construed in accordance with the law of the State of New York, without regard to principles of
conflicts of laws.

     SECTION 113. LEGAL HOLIDAYS. In any case where any Interest Payment Date, Redemption Date or
Stated Maturity of any Security shall not be a Business Day at any Place of Payment, then
(notwithstanding any other provision of this Indenture or of the Securities (other than a provision
of any Security that specifically states that such provision shall apply in lieu of this Section))
payment of interest or principal (and premium, if any) need not be made at such Place of Payment on
such date, but may be made on the next succeeding Business Day at such Place of Payment with the
same force and effect as if made on the Interest Payment Date or Redemption Date, or at the Stated
Maturity, provided, that no interest shall accrue with respect to

12

 

such payment for the period from and after such Interest Payment Date, Redemption Date or
Stated Maturity, as the case may be.

ARTICLE 2.

SECURITY FORMS

     SECTION 201. FORMS GENERALLY. The Securities of each series shall be in substantially the
form set forth in this Article, or in such other form as shall be established by or pursuant to a
Board Resolution or in one or more indentures supplemental hereto, in each case with such
appropriate insertions, omissions, substitutions and other variations as are required or permitted
by this Indenture, and may have such letters, numbers or other marks of identification and such
legends or endorsements placed thereon as may be required to comply with the rules of any
securities exchange or as may, consistently herewith, be determined by the officers executing such
Securities, as evidenced by their execution thereof. If the form of Securities of any series is
established by action taken pursuant to a Board Resolution, a copy of an appropriate record of such
action shall be certified by the Secretary or an Assistant Secretary of the Company and delivered
to the Trustee at or prior to the delivery of the Company Order contemplated by Section 303 for the
authentication and delivery of such Securities.

     The definitive Securities shall be printed, lithographed or engraved on steel engraved borders
or may be produced in any other manner, all as determined by the officers executing such
Securities, as evidenced by their execution of such Securities.

     SECTION 202. FORM OF FACE OF SECURITY.

[Insert any legend required by the Internal Revenue Code and the regulations thereunder.]

ARCH COAL, INC.

No. ________   $ _________

CUSIP_________

     Arch Coal, Inc., a corporation duly organized and existing under the laws of Delaware (herein
called the “Company,” which term includes any successor Person under the Indenture hereinafter
referred to), for value received, hereby promises to pay to                     , or registered assigns, the
principal sum of                      [Dollars] [if other than Dollars, substitute other currency or currency
units] on                      [If the Security is to bear interest prior to Maturity, insert —, and to pay
interest thereon from                      or from the most recent Interest Payment Date to which interest has
been paid or duly provided for, [semi-annually on                              and                      in each year] [if
other than semi-annual interest at a fixed rate, insert frequency of payments and payment dates,]
commencing                      at [If the Security is to bear interest at

13

 

a fixed rate, insert — the rate of ___% per annum] [if the Security is to bear interest at a
rate determined with reference to one or more formula, refer to description of index below], until
the principal hereof is paid or made available for payment.

     [If applicable, insert —, provided that any principal and premium, and any such installment of
interest, which is overdue shall bear interest at the rate of ___% per annum (to the extent that
the payment of such interest shall be legally enforceable), from the dates such amounts are due
until they are paid or made available for payment, and such interest shall be payable on demand.]
Interest shall be computed on the basis of a 360-day year of twelve 30-day months. The interest so
payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided
in such Indenture, be paid to the Person in whose name this Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date for such interest,
which shall be the                      or                      (whether or not a Business Day), as the case may be,
next preceding such Interest Payment Date. Any such interest not so punctually paid or duly
provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may
either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is
registered at the close of business on a Special Record Date for the Payment of such Defaulted
Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this
series not less than 10 days prior to such Special Record Date, or be paid at any time in any other
lawful manner not inconsistent with the requirements of any securities exchange on which the
Securities of this series may be listed, and upon such notice as may be required by such exchange,
all as more fully provided in said Indenture].

     [If the Securities are securities with respect to which the principal of or any premium or
interest may be determined with reference to one or more indices or formulas, insert the text of
such indices or formulas.]

     [If the Security is not to bear interest prior to Maturity, insert — The principal of this
Security shall not bear interest except in the case of a default in payment of principal upon
acceleration, upon redemption or at Stated Maturity and in such case the overdue principal and any
overdue premium shall bear interest at the rate of ___% per annum (to the extent that the payment
of such interest shall be legally enforceable), from the dates such amounts are due until they are
paid or made available for payment. Interest on any overdue principal or premium shall be payable
on demand. [Any such interest on overdue principal or premium which is not paid on demand shall
bear interest at the rate of ___% per annum (to the extent that the payment of such interest on
interest shall be legally enforceable), from the date of such demand until the amount so demanded
is paid or made available for payment. Interest on any overdue interest shall be payable on
demand.]]

     Payment of the principal of (and premium, if any) and [if applicable, insert — any such]
interest on this Security will be made at the office or agency of the Company maintained for that
purpose in                      in such coin or currency [of the United States of America] [if the Security
is denominated in a currency other than U.S. dollars, specify other currency or currency unit in
which payment of the principal of any premium or interest may be made] as at the time of payment is
legal tender for payment of public and private debts [if applicable, insert —; provided, however,
that at the option of the Company payment of interest may be made by check

14

 

mailed to the address of the Person entitled thereto as such address shall appear in the
Security Register or by wire transfer to an account maintained by the Person entitled thereto as
specified in the Security Register.]

     Reference is hereby made to the further provisions of this Security set forth on the reverse
hereof, which further provisions shall for all purposes have the same effect as if set forth at
this place.

     Unless the certificate of authentication hereon has been executed by the Trustee referred to
on the reverse hereof by manual signature, this Security shall not be entitled to any benefit under
the Indenture or be valid or obligatory for any purpose.

     IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its
corporate seal.

     Dated:                                     

     ARCH COAL, INC.

	 	 	 	 	 
	 	 	 
	 	By  	
 	 
	 	 	 	 
	 	 	 	 
	 

     SECTION 203. FORM OF REVERSE OF SECURITY. This Security is one of a duly authorized issue of
securities of the Company (herein called the Securities), issued and to be issued in one or more
series under an Indenture, dated as of                     , ___(herein called the Indenture, which term
shall have the meaning assigned to it in such instrument), between the Company and                     , as
Trustee (herein called the Trustee, which term includes any successor trustee under the Indenture),
and reference is hereby made to the Indenture for a statement of the respective rights, limitations
of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the
Securities and of the terms upon which the securities are, and are to be authenticated and
delivered. This Security is one of the series designated on the face hereof [if applicable, insert
— limited in aggregate principal amount to $                    ]. [The Securities are [unsecured general
obligations of the Company.]]

     [If applicable, insert — The securities of this series are subject to redemption upon not less
than 30 days’ notice by mail, [If applicable, insert —

     (1) on                      in any year commencing with the year                      and ending with the year
                     through operation of the sinking fund for this series at a Redemption Price equal to
100% of the principal amount, and

     (2) ] at any time [if applicable, insert — on or after                     , ___], as a whole or in
part, at the election of the Company, at the following Redemption Prices (expressed as percentages
of the principal amount): If redeemed [if applicable, insert — on or before                     , ___% and if
redeemed] during the 12-month period beginning                      of the years indicated,

	 	 	 	 	 	 	 

	Year
	 	Redemption Price
	 	Year
	 	Redemption Price
	 
	 	 
	 	 
	 	 
	 

15

 

and thereafter at a Redemption Price equal to ___% of the principal amount, together in the case
of any such redemption [if applicable, insert — (whether through operation of the sinking fund or
otherwise)] with accrued interest to the Redemption Date, but interest installments whose Stated
Maturity is on or prior to such Redemption Date will be payable to the Holders of such Securities,
or one or more Predecessor Securities, of record at the close of business on the relevant Record
Dates referred to on the face hereof, all as provided in the Indenture.]

     [If applicable, insert — The Securities of this series are subject to redemption upon not less
than 30 days’ notice by mail, (1) on                      in any year commencing with the year                      and
ending with the year ___ through operation of the sinking fund for this series at the Redemption
Prices for redemption through operation of the sinking fund (expressed as percentages of the
principal amount) set forth in the table below, and (2) at any time [if applicable, insert — on or
after                     , as a whole or in part, at the election of the Company, at the Redemption Prices
for redemption otherwise than through operation of the sinking fund (expressed as percentages of
the principal amount) set forth in the table below: If redeemed during the 12-month period
beginning of the years indicated,

	 	 	 	 	 

	 
	 	Redemption Price for Redemption
	 	Redemption Price for Redemption
	 
	 	Through Operation of the
	 	Otherwise Than Through
	Year
	 	Sinking Fund
	 	Operation of the Sinking Fund
	 
	 	 
	 	 
	 

and thereafter at a Redemption Price equal to_% of the principal amount, together in the
case of any such redemption (whether through operation of the sinking fund or otherwise) with
accrued interest to the Redemption Date, but interest installments whose Stated Maturity is on or
prior to such Redemption Date will be payable to the Holders of such Securities, or one or more
Predecessor Securities, of record at the close of business on the relevant Record Dates referred to
on the face hereof, all as provided in the Indenture.]

     [If applicable, insert — Notwithstanding the foregoing, the Company may not, prior to
                     redeem any Securities of this series as contemplated by [if applicable, insert — Clause
(2) of the preceding paragraph as a part of, or in anticipation of, any refunding operation by the
application, directly or indirectly, of moneys borrowed having an interest cost to the Company
(calculated in accordance with generally accepted financial practice) of less than ___% per annum.]

     [If applicable, insert — The sinking fund for this series provides for the redemption on
                     in each year beginning with the year                      and ending with the year                      of
[if applicable, insert — not less than $                     (mandatory sinking fund) and not more than]
$                     aggregate principal amount of Securities of this series. Securities of this series
acquired or redeemed by the Company otherwise than through [if applicable, insert — mandatory]
sinking fund payments may be credited against subsequent [if applicable, insert — mandatory]
[sinking fund payments otherwise required to be made [if applicable, insert —, in the inverse order
in which they become due].]

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	 	 	[If the Security is subject to redemption of any kind, insert — In the event of redemption of
this Security in part only, a new Security or Securities of this series and of like tenor for the
unredeemed portion hereof will be issued in the name of the Holder hereof upon the cancellation
hereof.]

     [If the Security is not subject to redemption of any kind, insert — This Security is not
redeemable prior to the Stated Maturity.]

     [If applicable, insert — The Indenture contains provisions for defeasance at any time of [the
entire indebtedness of this Security] [or] [certain restrictive covenants and Events of Default
with respect to this Security] [, in each case] upon compliance with certain conditions set forth
in the Indenture.]

     [If the Security is convertible into securities of the Company, specify the conversion
features.]

     [If the Security is not an Original Issue Discount Security, insert — If an Event of Default
with respect to Securities of this series shall occur and be continuing, the principal of the
Securities of this series may be declared due and payable in the manner and with the effect
provided in the Indenture.]

     [If the Security is an Original Issue Discount Security, insert — If an Event of Default with
respect to Securities of this series shall occur and be continuing, an amount of principal of the
Securities of this series may be declared due and payable in the manner and with the effect
provided in the Indenture. Such amount shall be equal to — [insert formula for determining the
amount.] Upon payment (i) of the amount of principal so declared due and payable and (ii) of
interest on any overdue principal, premium and interest (in each case to the extent that the
payment of such interest shall be legally enforceable), all of the Company’s obligations in respect
of the payment of the principal of and premium and interest, if any, on the Securities of this
series shall terminate.]

     The Indenture permits, with certain exceptions as therein provided, the amendment thereof and
the modification of the rights and obligations of the Company and the rights of the Holders of the
Securities of each series to be affected under the Indenture at any time by the Company and the
Trustee with the consent of the Holders of a majority in principal amount of the Securities at the
time Outstanding of each series to be affected. The Indenture also contains provisions permitting
the Holders of specified percentages in principal amount of the Securities of each series at the
time Outstanding, on behalf of the Holders of all Securities of such series, to waive compliance by
the Company with certain provisions of the Indenture and certain past defaults under the Indenture
and their consequences. Any such consent or waiver by the Holder of this Security shall be
conclusive and binding upon such Holder and upon all future Holders of this Security and of any
Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof,
whether or not notation of such consent or waiver is made upon this Security.

     As provided in and subject to the provisions of the Indenture, the Holder of this Security
shall not have the right to institute any proceeding with respect to the Indenture or for the

17

 

appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder
shall have previously given the Trustee written notice of a continuing Event of Default with
respect to the Securities of this series, the Holders of not less than 25% in principal amount of
the Securities of this series at the time Outstanding shall have made written request to the
Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the
Trustee reasonable indemnity, and the Trustee shall not have received from the Holders of a
majority in principal amount of Securities of this series at the time Outstanding a direction
inconsistent with such request, and shall have failed to institute any such proceeding, for 60 days
after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to any
suit instituted by the Holder of this Security for the enforcement of any payment of principal
hereof or any premium or interest hereon on or after the respective due dates expressed herein.

     No reference herein to the Indenture and no provision of this Security or of the Indenture
shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay
the principal of and any premium and interest on this Security at the times, place and rate, and in
the coin or currency, herein prescribed.

     As provided in the Indenture and subject to certain limitations therein set forth, the
transfer of this Security is registrable in the Security Register, upon surrender of this Security
for registration of transfer at the office or agency of the Company in any place where the
principal of and any premium and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the Company and the
Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing,
and thereupon one or more new Securities of this series and of like tenor, of authorized
denominations and for the same aggregate principal amount, will be issued to the designated
transferee or transferees.

     The Securities of this series are issuable only in registered form without coupons in
denominations of $1,000 and any integral multiple thereof. As provided in the Indenture and
subject to certain limitations therein set forth, Securities of this series are exchangeable for a
like aggregate principal amount of Securities of this series and of like tenor of a different
authorized denomination, as requested by the Holder surrendering the same.

     No service charge shall be made for any such registration of transfer or exchange, but the
Company may require payment of a sum sufficient to cover any tax or other governmental charge
payable in connection therewith.

     Prior to due presentment of this Security for registration of transfer, the Company, the
Trustee and any agent of the Company or the Trustee may treat the Person in whose name this
Security is registered as the owner hereof for all purposes, whether or not this Security be
overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

     All terms used in this Security which are defined in the Indenture shall have the meanings
assigned to them in the Indenture.

     SECTION 204. FORM OF LEGEND FOR GLOBAL SECURITIES. Unless otherwise specified as
contemplated by Section 301 for the Securities evidenced thereby, every Global

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Security authenticated and delivered hereunder shall bear a legend in substantially the
following form:

	 	 	THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED
TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY MAY
NOT BE TRANSFERRED TO, OR REGISTERED OR EXCHANGED IN WHOLE OR IN PART FOR A SECURITY
REGISTERED IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT
IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

     SECTION 205. FORM OF TRUSTEE’S CERTIFICATE OF AUTHENTICATION. The Trustee’s certificates of
authentication shall be in substantially the following form:

     This is one of the Securities of the series designated therein referred to in the
within-mentioned Indenture.

	 	 	 	 	 
	 	U.S. Bank National Association, as Trustee	 
	 
	 	By:  	
 	 
	 	 	Authorized Officer 	 
	 	 	 	 
	 

ARTICLE 3.

THE SECURITIES

     SECTION 301. AMOUNT UNLIMITED; ISSUABLE IN SERIES. The aggregate principal amount of
Securities which may be authenticated and delivered under this Indenture is unlimited.

     The Securities may be issued in one or more series. There shall be established in or pursuant
to a Board Resolution and, subject to Section 303, set forth, or determined in the manner provided,
in an Officers’ Certificate, or established in one or more indentures supplemental hereto, prior to
the issuance of Securities of any series:

     (1) the title of the Securities of the series (which shall distinguish the Securities of the
series from Securities of any other series);

     (2) any limit upon the aggregate principal amount of the Securities of the series which may be
authenticated and delivered under this Indenture (except for Securities authenticated and delivered
upon registration of transfer of, or in exchange for, or in lieu of, other Securities of the series
pursuant to Section 304, 305, 306, 906 or 1107 and except for any Securities which, pursuant to
Section 303, are deemed never to have been authenticated and delivered hereunder);

     (3) the Person to whom any interest on a Security of the series shall be payable, if other
than the Person in whose name that Security (or one or more Predecessor Securities) is registered
at the close of business on the Regular Record Date for such interest;

19

 

     (4) the date or dates on which the principal of any Securities of the series is payable;

     (5) the rate or rates at which any Securities of the series shall bear interest, if any, the
date or dates from which any such interest shall accrue, the Interest Payment Dates on which any
such interest shall be payable and the Regular Record Date for any such interest payable on any
Interest Payment Date;

     (6) the place or places where the principal of and any premium and interest on any Securities
of the series shall be payable;

     (7) the period or periods within which, the price or prices at which and the terms and
conditions upon which any Securities of the series may be redeemed, in whole or in part, at the
option of the Company;

     (8) the obligation, if any, of the Company to redeem or purchase any Securities of the series
pursuant to any sinking fund or analogous provisions or at the option of the Holder thereof and the
period or periods within which, the price or prices at which and the terms and conditions upon
which any Securities of the series shall be redeemed or purchased, in whole or in part, pursuant to
such obligation;

     (9) any provision for the conversion or exchange of Securities of the series, either at the
option of the Holder thereof or the Company, into or for another security or securities of the
Company, the security or securities into or for which, the period or periods within which, the
price or prices, including any adjustments thereto, at which and the other terms and conditions
upon which any Securities of the series shall be converted or exchanged, in whole or in part,
pursuant to such obligation;

     (10) which, if any, of the Eligible Guarantors shall guarantee the Securities on the terms set
forth in Article 14 (each of the Eligible Guarantors that guarantee the Debt Securities set forth
in Article 14, if any, a “Guarantor”);

     (11) the ranking of the obligations of each Guarantor under its respective Guarantee, if other
than on parity with all other unsecured, unsubordinated indebtedness of such Guarantor;

     (12) if other than denominations of $1,000 and any integral multiple thereof, the
denominations in which any Securities of the series shall be issuable;

     (13) if the amount of principal of or any premium or interest on any Securities of the series
may be determined with reference to one or more indices or pursuant to a formula, the manner in
which such amounts shall be determined;

     (14) if other than the currency of the United States of America, the currency, currencies or
currency units in which the principal of or any premium or interest on any Securities of the series
shall be payable and the manner of determining the equivalent thereof in the currency of the United
States of America for any purpose, including for purposes of the definition of “Outstanding” in
Section 101;

20

 

     (15) if the principal of or any premium or interest on any Securities of the series is to be
payable, at the election of the Company or the Holder thereof, in one or more currencies or
currency units other than that or those in which such Securities are stated to be payable, the
currency, currencies or currency units in which the principal of or any premium or interest on such
Securities as to which such election is made shall be payable, the periods within which and the
terms and conditions upon which such election is to be made and the amount so payable (or the
manner in which such amount shall be determined);

     (16) if other than the entire principal amount thereof, the portion of the principal amount of
any Securities of the series which shall be payable upon declaration of acceleration of the
Maturity thereof pursuant to Section 502;

     (17) if the principal amount payable at the Stated Maturity of any Securities of the series
will not be determinable as of any one or more dates prior to the Stated Maturity, the amount which
shall be deemed to be the principal amount of such Securities as of any such date for any purpose
thereunder or hereunder, including the principal amount thereof which shall be due and payable upon
any Maturity other than the Stated Maturity or which shall be deemed to be Outstanding as of any
date prior to the Stated Maturity (or, in any such case, the manner in which such amount deemed to
be the principal amount shall be determined);

     (18) if applicable, that the Securities of the series, in whole or any specified part, shall
be defeasible pursuant to Section 1302 or Section 1303 or both such Sections (or, if defeasible by
another method, such other method) and, if other than by an action pursuant to a Board Resolution,
the manner in which any election by the Corporation to defease such Securities shall be evidenced;

     (19) if and as applicable, that any Securities of the series shall be issuable in whole or in
part in the form of one or more Global Securities and, in such case, the respective Depositaries
for such Global Securities, the form of any legend or legends which shall be borne by any such
Global Security in addition to or in lieu of that set forth in Section 204 and any circumstances in
addition to or in lieu of those set forth in Clause (2) of the last paragraph of Section 305 in
which any such Global Security may be exchanged in whole or in part for Securities registered, and
any transfer of such Global Security in whole or in part may be registered, in the name or names of
Persons other than the Depositary for such Global Security or a nominee thereof;

     (20) any addition to or change in the Events of Default which applies to any Securities of the
series and any change in the right of the Trustee or the requisite Holders of such Securities to
declare the principal amount thereof due and payable pursuant to Section 502;

     (21) any addition to or change in the covenants set forth in Article 10 which applies to
Securities of the series; and

     (22) any other terms of the series (which terms shall not be inconsistent with the provisions
of this Indenture, except as permitted by Section 901(5)).

     All Securities of any one series shall be substantially identical except as to denomination
and except as may otherwise be provided in or pursuant to the Board Resolution referred to above
and (subject to Section 303) set forth, or determined in the manner provided in the

21

 

Officers’ Certificate referred to above or in any such indenture supplemental hereto. All
Securities of any one series need not be issued at one time and, unless otherwise provided, a
series may be reopened for issuances of additional Securities of such series.

     Unless otherwise provided with respect to the Securities of any series, at the option of the
Company, interest on the Securities of any series that bears interest may be paid by mailing a
check to the address of the person entitled thereto as such address shall appear in the Security
Register.

     If any of the terms of a series are established by action taken pursuant to a Board
Resolution, a copy of an appropriate record of such action shall be certified by the Secretary or
an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of
the Officers’ Certificate setting forth the terms of the series.

     SECTION 302. DENOMINATIONS. The Securities of each series shall be issuable only in
registered form without coupons and only in such denominations as shall be specified as
contemplated by Section 301. In the absence of any such specified denomination with respect to the
Securities of any series, the Securities of such series shall be issuable in denominations of
$1,000 and any integral multiple thereof.

     SECTION 303. EXECUTION, AUTHENTICATION, DELIVERY AND DATING. The Securities shall be
executed on behalf of the Company by its Chairman of the Board, its Chief Executive Officer, its
President, one of its Vice Presidents or an Assistant Treasurer, under its corporate seal
reproduced thereon attested by its Secretary or one of its Assistant Secretaries. The signature of
any of these officers on the Securities may be manual or facsimile.

     Securities bearing the manual or facsimile signatures of individuals who were at any time the
proper officers of the Company shall bind the Company, notwithstanding that such individuals or any
of them have ceased to hold such offices prior to the authentication and delivery of such
Securities or did not hold such offices at the date of such Securities.

     At any time and from time to time after the execution and delivery of this Indenture, the
Company may deliver Securities of any series executed by the Company to the Trustee for
authentication, together with a Company Order for the authentication and delivery of such
Securities, and the Trustee in accordance with the Company Order shall authenticate and deliver
such Securities. If the form or terms of the Securities of the series have been established by or
pursuant to one or more Board Resolutions as permitted by Sections 201 and 301, in authenticating
such Securities, and accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to Section 601) shall be
fully protected in relying upon, an Opinion of Counsel stating,

     (1) if the form of such Securities has been established by or pursuant to Board Resolution as
permitted by Section 201, that such form has been established in conformity with the provisions of
this Indenture;

     (2) if the terms of such Securities have been established by or pursuant to Board Resolution
as permitted by Section 301, that such terms have been established in conformity with the
provisions of this Indenture; and

22

 

     (3) that such Securities, when authenticated and delivered by the Trustee and issued by the
Company in the manner and subject to any conditions specified in such Opinion of Counsel, will
constitute valid and legally binding obligations of the Company enforceable in accordance with
their 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 and, if applicable, to provisions of law which may require that a judgment for
money damages rendered by a court in the United States be expressed in United States dollars.

     If such form or terms have been so established, the Trustee shall not be required to
authenticate such Securities if the issue of such Securities pursuant to this Indenture will affect
the Trustee’s own rights, duties or immunities under the Securities and this Indenture or otherwise
in a manner which is not reasonably acceptable to the Trustee.

     Notwithstanding the provisions of Section 301 and of the preceding paragraph, if all
Securities of a series are not to be originally issued at one time, it shall not be necessary to
deliver the Officers’ Certificate otherwise required pursuant to Section 301 or the Company Order
and Opinion of Counsel otherwise required pursuant to such preceding paragraph at or prior to the
authentication of each Security of such series if such documents are delivered at or prior to the
authentication upon original issuance of the first Security of such series to be issued.

     Each Security shall be dated the date of its authentication.

     No Security shall be entitled to any benefit under this Indenture or be valid or obligatory
for any purpose unless there appears on such Security a certificate of authentication substantially
in the form provided for herein, executed by the Trustee by manual signature of an authorized
officer, and such certificate upon any Security shall be conclusive evidence, and the only
evidence, that such Security has been duly authenticated and delivered hereunder. Notwithstanding
the foregoing, if any Security shall have been authenticated and delivered hereunder but never
issued and sold by the Company, and the Company shall deliver such Security to the Trustee for
cancellation as provided in Section 309, for all purposes of this Indenture such Security shall be
deemed never to have been authenticated and delivered hereunder and shall never be entitled to the
benefits of this Indenture.

     Reference is made to Section 1405 concerning execution and delivery of the Guarantees.

     SECTION 304. TEMPORARY SECURITIES. Pending the preparation of definitive Securities of any
series, the Company may execute, and upon Company Order the Trustee shall authenticate and deliver,
temporary Securities which are printed, lithographed, typewritten, mimeographed or otherwise
produced, in any authorized denomination, substantially of the tenor of the definitive Securities
in lieu of which they are issued and with such appropriate insertions, omissions, substitutions and
other variations as the officers executing such Securities may determine, as evidenced by their
execution of such Securities.

     If temporary Securities of any series are issued, the Company will cause definitive Securities
of that series to be prepared without unreasonable delay. After the preparation of definitive
Securities of such series, the temporary Securities of such series shall be exchangeable

23

 

for definitive Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Company in a Place of Payment for that series, without charge
to the Holder. Upon surrender for cancellation of any one or more temporary Securities of any
series, the Company shall execute and the Trustee shall authenticate and deliver in exchange
therefor one or more definitive Securities of the same series, of any authorized denominations and
of like tenor and aggregate principal amount. Until so exchanged, the temporary Securities of any
series shall in all respects be entitled to the same benefits under this Indenture as definitive
Securities of such series and tenor.

     SECTION 305. REGISTRATION, REGISTRATION OF TRANSFER AND EXCHANGE. Subject to any applicable
laws and regulations, the Company shall cause to be kept at the Corporate Trust Office of the
Trustee a register (the register maintained in such office or in any other office or agency of the
Company in a Place of Payment being herein sometimes referred to as the “Security Register”) in
which, subject to such reasonable regulations as it may prescribe, the Company shall provide for
the registration of Securities and of transfers of Securities. The Trustee is hereby appointed
Security Registrar for the purpose of registering Securities and transfers of Securities as herein
provided.

     Upon surrender for registration of transfer of any Security of a series at the office or
agency of the Company in a Place of Payment for that series, the Company shall execute, and the
Trustee shall authenticate and deliver, in the name of the designated transferee or transferees,
one or more new Securities of the same series, of any authorized denominations and of like tenor
and aggregate principal amount.

     At the option of the Holder, Securities of any series may be exchanged for other Securities of
the same series, of any authorized denominations and of like tenor and aggregate principal amount,
upon surrender of the Securities to be exchanged at such office or agency. Whenever any Securities
are so surrendered for exchange, the Company shall execute, and the Trustee shall authenticate and
deliver, the Securities which the Holder making the exchange is entitled to receive.

     All Securities issued upon any registration of transfer or exchange of Securities shall be the
valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under
this Indenture, as the Securities surrendered upon such registration of transfer or exchange.

     Every Security presented or surrendered for registration of transfer or for exchange shall (if
so required by the Company or the Trustee) be duly endorsed, or be accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security Registrar duly
executed, by the Holder thereof or his attorney duly authorized in writing.

     No service charge shall be made for any registration of transfer or exchange of Securities,
but the Company may require payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in connection with any registration of transfer or exchange of
Securities, other than exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

24

 

     If the Securities of any series (or of any series and specified tenor) are to be redeemed in
part, the Company shall not be required (A) to issue, register the transfer of or exchange any
Securities of that series (or of that series and specified tenor, as the case may be) during a
period beginning at the opening of business 15 days before the day of the mailing of a notice of
redemption of any such Securities selected for redemption under Section 1103 and ending at the
close of business on the day of such mailing, or (B) to register the transfer or exchange of any
Security so selected for redemption in whole or in part, except the unredeemed portion of any
Security being redeemed in part.

     The provisions of Clauses (1), (2), (3), (4), (5) and (6) below shall apply only to Global
Securities:

     (1) Each Global Security authenticated under this Indenture shall be registered in the name of
the Depositary designated for such Global Security or a nominee thereof and delivered to such
Depositary or a nominee thereof or custodian therefor, and each such Global Security shall
constitute a single Security for all purposes of this Indenture.

     (2) Notwithstanding any other provision in this Indenture, no Global Security may be exchanged
in whole or in part for Securities registered, and no transfer of a Global Security in whole or in
part may be registered, in the name of any Person other than the Depositary for such Global
Security or a nominee thereof unless (A) such Depositary (i) has notified the Company that it is
unwilling or unable to continue as Depositary for such Global Security or (ii) has ceased to be a
clearing agency registered under the Exchange Act, (B) there shall have occurred and be continuing
an Event of Default with respect to such Global Security or (C) there shall exist such
circumstances, if any, in addition to or in lieu of the foregoing as have been specified for this
purpose as contemplated by Section 301.

     (3) Subject to the provisions of Clause (2) above, the rights of holders of such Global
Securities shall be exercised only through the Depositary and shall be limited to those established
by law and agreements between such holders and the Depositary and or the Depositary participants.
The initial Depositary will make book-entry transfers among the Depositary participants and receive
and transmit distributions of principal and interest on the Global Securities to such Depositary
participants.

     The Depositary may be treated by the Company and the Trustee, and any of their respective
agents, employees, officers and directors, as the absolute owner of the Global Securities for all
purposes whatsoever. Notwithstanding the foregoing, nothing in this Indenture shall prevent the
Company and the Trustee, or any of their respective agents, from giving effect to any written
certification, proxy or other authorization furnished by the Depositary, or shall impair the
operation of customary practices governing the exercise of the rights of a holder of any Global
Security. Subject to the foregoing provisions of this Section, any holder may grant proxies and
otherwise authorize any person to take any action which a holder is entitled to take under this
Indenture or the Global Securities.

     (4) Subject to Clause (2) above, any exchange of a Global Security for other Securities may be
made in whole or in part, and all Securities issued in exchange for a Global Security or

25

 

any portion thereof shall be registered in such names as the Depositary for such Global
Security shall direct.

     (5) Every Security authenticated and delivered upon registration of transfer of, or in
exchange for or in lieu of, a Global Security or any portion thereof, whether pursuant to this
Section, Section 304, 306, 906 or 1107 or otherwise, shall be authenticated and delivered in the
form of, and shall be, a Global Security, unless such Security is registered in the name of a
Person other than the Depositary for such Global Security or a nominee thereof.

     (6) None of the Company, the Trustee nor any agent of the Company or the Trustee will have any
responsibility or liability for any aspect of the records relating to or payments made on account
of beneficial ownership interests of a Global Security or maintaining, supervising or reviewing any
records relating to such beneficial ownership interests.

     SECTION 306. MUTILATED, DESTROYED, LOST OR STOLEN SECURITIES. If any mutilated Security is
surrendered to the Trustee, the Company shall execute and the Trustee shall authenticate and
deliver in exchange therefor a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

     If there shall be delivered to the Company and the Trustee (i) evidence to their satisfaction
of the destruction, loss or theft of any Security and (ii) such security or indemnity as may be
required by them to save each of them and any agent of either of them harmless, then, in the
absence of notice to the Company or the Trustee that such Security has been acquired by a bona fide
purchaser, the Company shall execute and the Trustee shall authenticate and deliver, in lieu of any
such destroyed, lost or stolen Security, a new Security of the same series and of like tenor and
principal amount and bearing a number not contemporaneously outstanding.

     In case any such mutilated, destroyed, lost or stolen Security has become or is about to
become due and payable, the Company in its discretion may, instead of issuing a new Security, pay
such Security.

     Upon the issuance of any new Security under this Section, the Company may require the payment
of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation
thereto and any other expenses (including the fees and expenses of the Trustee) connected
therewith.

     Every new Security of any series issued pursuant to this Section in lieu of any destroyed,
lost or stolen Security shall constitute an original additional contractual obligation of the
Company, whether or not the destroyed, lost or stolen Security shall be at any time enforceable by
anyone, and shall be entitled to all the benefits of this Indenture equally and proportionately
with any and all other Securities of that series duly issued hereunder.

     The provisions of this Section are exclusive and shall preclude (to the extent lawful) all
other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost
or stolen Securities.

     SECTION 307. PAYMENT OF INTEREST; INTEREST RIGHTS PRESERVED. Except as otherwise provided as
contemplated by Section 301 with respect to any series of

26

 

Securities, interest on any Security which is payable, and is punctually paid or duly provided
for, on any Interest Payment Date shall be paid to the Person in whose name that Security (or one
or more Predecessor Securities) is registered at the close of business on the Regular Record Date
for such interest.

     Any interest on any Security of any series which is payable, but is not punctually paid or
duly provided for, on any Interest Payment Date (herein called “Defaulted Interest”) shall
forthwith cease to be payable to the Holder on the relevant Regular Record Date by virtue of having
been such Holder, and such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in Clause (1) or (2) below:

     (1) The Company may elect to make payment of any Defaulted Interest to the Persons in whose
name the Securities of such series (or their respective Predecessor Securities) are registered at
the close of business on a Special Record Date for the payment of such Defaulted Interest, which
shall be fixed in the following manner. The Company shall notify the Trustee in writing of the
amount of Defaulted Interest proposed to be paid on each Security of such series and the date of
the proposed payment, and at the same time the Company shall deposit with the Trustee an amount of
money equal to the aggregate amount proposed to be paid in respect of such Defaulted Interest or
shall make arrangements satisfactory to the Trustee for such deposit prior to the date of the
proposed payment, such money when deposited to be held in trust for the benefit of the Persons
entitled to such Defaulted Interest as in this Clause provided. Thereupon the Trustee shall fix a
Special Record Date for the payment of such Defaulted Interest which shall be not more than 15 days
and not less than 10 days prior to the date of the proposed payment and not less than 10 days after
the receipt by the Trustee of any notice of the proposed payment. The Trustee shall promptly
notify the Company of such Special Record Date and, in the name and at the expense of the Company,
shall cause notice of the proposed payment of such Defaulted Interest and the Special Record Date
therefor to be mailed, first-class postage prepaid, to each Holder of Securities of such series,
not less than 10 days prior to such Special Record Date. Notice of the proposed payment of such
Defaulted Interest and the Special Record Date therefore having been so mailed, such Defaulted
Interest shall be paid to the Persons in whose names the Securities of such series (or their
respective Predecessor Securities) are registered at the close of business on such Special Record
Date and shall no longer be payable pursuant to the following Clause (2).

     (2) The Company may make payment of any Defaulted Interest on the Securities of any series in
any other lawful manner not inconsistent with the requirements of any securities exchange on which
such Securities may be listed, and upon such notice as may be required by such exchange, if, after
notice given by the Company to the Trustee of the proposed payment pursuant to this Clause, such
manner of payment shall be deemed practicable by the Trustee.

     Subject to the foregoing provisions of this Section, each Security delivered under this
Indenture upon registration of transfer of or in exchange for or in lieu of any other Security
shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by such
other Security.

     SECTION 308. PERSONS DEEMED OWNERS. Prior to due presentment of a Security for registration
of transfer, the Company, the Trustee and any agent of the Company or the

27

 

Trustee may treat the Person in whose name such Security is registered as the owner of such
Security for the purpose of receiving payment of principal of and any premium and (subject to
Section 307) any interest on such Security and for all other purposes whatsoever, whether or not
such Security be overdue, and neither the Company, the Trustee nor any agent of the Company or the
Trustee shall be affected by notice to the contrary.

     SECTION 309. CANCELLATION. All Securities surrendered for payment, redemption, registration
of transfer or exchange or for credit against any sinking fund payment shall, if surrendered to any
Person other than the Trustee, be delivered to the Trustee and shall be promptly cancelled by it.
The Company may at any time deliver to the Trustee for cancellation any Securities previously
authenticated and delivered hereunder which the Company may have acquired in any manner whatsoever,
and may deliver to the Trustee (or to any other Person for delivery to the Trustee) for
cancellation any Securities previously authenticated hereunder which the Company has not issued and
sold, and all Securities so delivered shall be promptly cancelled by the Trustee. No Securities
shall be authenticated in lieu of or in exchange for any Securities cancelled as provided in this
Section, except as expressly permitted by this Indenture. All cancelled Securities held by the
Trustee shall be disposed of by the Trustee in accordance with its customary procedure, unless
otherwise directed by a Company Order.

     SECTION 310. COMPUTATION OF INTEREST. Except as otherwise specified as contemplated by
Section 301 for Securities of any series, interest on the Securities of each series shall be
computed on the basis of a 360-day year of twelve 30-day months.

ARTICLE 4.

SATISFACTION AND DISCHARGE

     SECTION 401. SATISFACTION AND DISCHARGE OF INDENTURE. This Indenture shall upon Company
Request cease to be of further effect (except as to any surviving rights of registration of
transfer or exchange of Securities herein expressly provided for), and the Trustee, at the expense
of the Company, shall execute proper instruments acknowledging satisfaction and discharge of this
Indenture, when

     (1) either

     (a) all Securities theretofore authenticated and delivered (other than (i) Securities
which have been destroyed, lost or stolen and which have been replaced or paid as provided
in Section 306 and (ii) Securities for whose payment money has theretofore been deposited in
trust or segregated and held in trust by the Company and thereafter repaid to the Company or
discharged from such trust, as provided in Section 1003) have been delivered to the Trustee
for cancellation; or

          (b) all such Securities not theretofore delivered to the Trustee for cancellation

          (i) have become due and payable, or

          (ii) will become due and payable at their Stated Maturity within one year,

      or

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          (iii) are to be called for redemption within one year under arrangements
satisfactory to the Trustee for the giving of notice of redemption by the Trustee in
the name, and at the expense, of the Company,

	 	 	 	and the Company, in the case of (i) (ii) or (iii) above, has deposited or caused to
be deposited with the Trustee as trust funds in trust for the purpose money (either
in United States dollars or such other currency or currency units in which the
Securities of any series may be payable) in an amount sufficient to pay and
discharge the entire indebtedness on such Securities not theretofore delivered to
the Trustee for cancellation, for principal and any premium and interest to the date
of such deposit (in the case of Securities which have become due and payable) or to
the Stated Maturity or Redemption Date, as the case may be;

     (2) the Company has paid or caused to be paid all other sums payable hereunder by the Company;
and

     (3) the Company has delivered to the Trustee an Officers’ Certificate and an Opinion of
Counsel, each stating that all conditions precedent herein provided for relating to the
satisfaction and discharge of this Indenture have been complied with.

     Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the
Company to the Trustee under Section 607, the obligations of the Company to any Authenticating
Agent under Section 614 and, if money shall have been deposited with the Trustee pursuant to
subclause (b) of Clause (1) of this Section, the obligations of the Trustee under Section 402 and
the last paragraph of Section 1003 shall survive.

     SECTION 402. APPLICATION OF TRUST MONEY. Subject to the provisions of the last paragraph of
Section 1003, all money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this Indenture, to the
payment, either directly or through any Paying Agent (including the Company acting as its own
Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal and
any premium and interest for whose payment such money has been deposited with the Trustee.

ARTICLE 5.

REMEDIES

     SECTION 501. EVENTS OF DEFAULT. Event of Default, wherever used herein with respect to
Securities of any series, means any of the following events (whatever the reason for such Event of
Default and whether it shall be voluntary or involuntary or be effected by operation of law or
pursuant to any judgment, decree or order of any court or any order, rule or regulation of any
administrative or governmental body):

     (1) default in the payment of any interest upon any Security of that series when it becomes
due and payable, and continuance of such default for a period of 30 days; or

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     (2) default in the payment of the principal of or any premium on any Security of that series
when due, whether at its Maturity, upon acceleration or otherwise; or

     (3) default in the deposit of any sinking fund payment, when and as due by the terms of a
Security of that series; or

     (4) default in the performance, or breach, of any covenant, agreement or warranty of the
Company or a Guarantor for the benefit of the Holders of the Security in this Indenture (other than
a covenant, agreement or warranty a default in whose performance or whose breach is elsewhere in
this Section specifically dealt with or which has expressly been included in this Indenture solely
for the benefit of series of Securities other than that series), and continuance of such default or
breach for a period of 90 days after there has been given, by registered or certified mail, to the
Company or a Guarantor by the Trustee or to the Company or a Guarantor and the Trustee by the
Holders of at least 25% in principal amount of the Outstanding Securities of that series a written
notice specifying such default or breach and requiring it to be remedied and stating that such
notice is a Notice of Default hereunder; or

     (5) the entry by a court having jurisdiction in the premises of (A) a decree or order for
relief in respect of the Company, a Significant Subsidiary or any group of Subsidiaries that, taken
as a whole, would constitute a Significant Subsidiary in an involuntary case or proceeding under
any applicable Federal or State bankruptcy, insolvency, reorganization or other similar law or (B)
a decree or order adjudging the Company, a Significant Subsidiary or any group of Subsidiaries
that, taken as a whole, would constitute a Significant Subsidiary as bankrupt or insolvent, or
approving as properly filed a petition seeking reorganization, arrangement, adjustment or
composition of or in respect of the Company, a Significant Subsidiary or any group of Subsidiaries
that, taken as a whole, would constitute a Significant Subsidiary under any applicable Federal or
State law, or appointing a custodian, receiver, liquidator, assignee, trustee, sequestrator or
other similar official of the Company, a Significant Subsidiary or any group of Subsidiaries that,
taken as a whole, would constitute a Significant Subsidiary or of any substantial part of its
property, or ordering the winding up or liquidation of its affairs, and the continuance of any such
decree or order for relief or any such other decree or order unstayed and in effect for a period of
60 consecutive days; or

     (6) the commencement by the Company of a voluntary case or proceeding under any applicable
Federal or State bankruptcy, insolvency, reorganization or other similar law or of any other case
or proceeding to be adjudicated a bankrupt or insolvent, or the consent by it to the entry of a
decree or order for relief in respect of the Company in an involuntary case or proceeding under any
applicable Federal or State bankruptcy, insolvency, reorganization or other similar law or to the
commencement of any bankruptcy or insolvency case or proceeding against it, or the filing by it of
a petition or answer or consent seeking reorganization or relief under any applicable Federal or
State law, or the consent by it to the filing of such petition or to the appointment of or taking
possession by a custodian, receiver, liquidator, assignee, trustee, sequestrator or other similar
official of the Company or of any substantial part of its property, or the making by it of an
assignment for the benefit of creditors, or the admission by it in writing of its inability to pay
its debts generally as they become due, or the taking of corporate action by the Company in
furtherance of any such action; or

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     (7) a Guarantee of the Security of that series (other than in accordance with the terms of the
Guarantee) shall be held in any judicial proceeding to be unenforceable or invalid; or

     (8) any other Event of Default provided with respect to Securities of that series.

     SECTION 502. ACCELERATION OF MATURITY; RESCISSION AND ANNULMENT. If an Event of Default
(other than an Event of Default specified in Section 501(5) or 501(6)) with respect to Securities
of any series at the time Outstanding occurs and is continuing, then in every such case the Trustee
or the Holders of not less than 25% in principal amount of the Outstanding Securities of that
series may declare the principal amount of all the Securities of that series (or, if any Securities
of that series are Original Issue Discount Securities, such portion of the principal amount of such
Securities as may be specified by the terms thereof) to be due and payable immediately, by a notice
in writing to the Company (and to the Trustee if given by Holders), and upon any such declaration
such principal amount (or specified amount) shall become immediately due and payable. If an Event
of Default specified in Section 501(5) or 501(6) with respect to Securities of any series at the
time Outstanding occurs, the principal amount of all the Securities of that series (or, if any
Securities of that series are Original Issue Discount Securities, such portion of the principal
amount of such Securities as may be specified by the terms thereof) shall automatically, and
without any declaration or other action on the part of the Trustee or any Holder, become
immediately due and payable.

     At any time after such a declaration of acceleration with respect to Securities of any series
has been made and before a judgment or decree for payment of the money due has been obtained by the
Trustee as hereinafter in this Article provided, the Holders of a majority in principal amount of
the Outstanding Securities of that series, by written notice to the Company and the Trustee, may
rescind and annul such declaration and its consequences if:

     (1) the Company has paid or deposited with the Trustee a sum sufficient to pay;

     (A) all overdue interest on all Securities of that series,

     (B) the principal of (and premium, if any, on) any Securities of that series which have
become due otherwise than by such declaration or acceleration and any interest thereon at
the rate or rates prescribed therefor in such Securities,

     (C) to the extent that payment of such interest is lawful, interest upon overdue
interest at the rate or rates prescribed therefor in such Securities, and

     (D) all sums paid or advanced by the Trustee hereunder and the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel; and

     (2) all Events of Default with respect to Securities of that series other than the non-payment
of the principal of Securities of that series which have become due solely by such declaration of
acceleration, have been cured or waived as provided in Section 513.

     No such rescission shall affect any subsequent default or impair any right consequent thereon.

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     SECTION 503. COLLECTION OF INDEBTEDNESS AND SUITS FOR ENFORCEMENT; TRUSTEE. The Company
covenants that if:

     (1) default is made in the payment of any interest on any Security when such interest becomes
due and payable and such default continues for a period of 30 days; or

     (2) default is made in the payment of the principal of (or premium, if any, on) any Security
whether at the Maturity or upon acceleration or otherwise thereof;

the Company will, upon demand of the Trustee, pay to it, for the benefit of the Holders of such
Securities, the whole amount then due and payable on such Securities for principal and any premium
and interest and, to the extent that payment of such interest shall be legally enforceable,
interest on any overdue principal and premium and on any overdue interest, at the rate or rates
prescribed therefor in such Securities, and, in addition thereto, such further amount as shall be
sufficient to cover the costs and expenses of collection, including the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel.

     If an Event of Default with respect to Securities of any series occurs and is continuing, the
Trustee may in its discretion proceed to protect and enforce its rights and the rights of the
Holders of Securities of such series by such appropriate judicial proceedings as the Trustee shall
deem most effectual to protect and enforce any such rights, whether for the specific enforcement of
any covenant or agreement in this Indenture or in aid of the exercise of any power granted herein,
or to enforce any other proper remedy.

     SECTION 504. TRUSTEE MAY FILE PROOFS OF CLAIM. In case of any judicial proceeding relative
to the Company (or any other obligor upon the Securities), its property or its creditors, the
Trustee shall be entitled and empowered, by intervention in such proceeding or otherwise, to take
any and all actions authorized under the Trust Indenture Act in order to have claims of the Holders
and the Trustee allowed in any such proceeding. In particular, the Trustee shall be authorized to
collect and receive any moneys or other property payable or deliverable on any such claims and to
distribute the same; and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by each Holder to make
such payments to the Trustee and, in the event that the Trustee shall consent to the making of such
payments directly to the Holders, to pay to the Trustee any amount due it for the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any
other amounts due the Trustee under Section 607.

     No provision of this Indenture shall be deemed to authorize the Trustee to authorize or
consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement,
adjustment or composition affecting the Securities or the rights of any Holder thereof or to
authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding;
provided, however, that the Trustee may, on behalf of the Holders, vote for the election of a
trustee in bankruptcy or similar official and be a member of a creditors’ or other similar
committee.

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     SECTION 505. TRUSTEE MAY ENFORCE CLAIMS WITHOUT POSSESSION OF SECURITIES. All rights of
action and claims under this Indenture or the Securities may be prosecuted and enforced by the
Trustee without the possession of any of the Securities or the production thereof in any proceeding
relating thereto, and any such proceeding instituted by the Trustee shall be brought in its own
name as trustee of an express trust, and any recovery of judgment shall, after provision for the
payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its
agents and counsel, be for the ratable benefit of the Holders of the Securities in respect of which
such judgment has been recovered.

     SECTION 506. APPLICATION OF MONEY COLLECTED. Any money collected by the Trustee pursuant to
this Article shall be applied in the following order, at the date or dates fixed by the Trustee
and, in case of the distribution of such money on account of principal or any premium or interest,
upon presentation of the Securities and the notation thereon of the payment if only partially paid
and upon surrender thereof if fully paid:

     First, to the payment of all amounts due the Trustee under Section 607; and

     Second, to the payment of the amounts then due and unpaid for principal of and any premium and
interest on the Securities in respect of which or for the benefit of which such money has been
collected, ratably, without preference or priority of any kind, according to the amounts due and
payable on such Securities for principal and any premium and interest, respectively.

     Third, to the Company or any other Person or Persons entitled thereto.

     SECTION 507. LIMITATION ON SUITS.

     No Holder of any Security of any series shall have any right to institute any proceeding,
judicial or otherwise, with respect to this Indenture, or for the appointment of a receiver or
trustee, or for any other remedy hereunder, unless:

     (1) such Holder has previously given written notice to the Trustee of a continuing Event of
Default with respect to the Securities of that series;

     (2) the Holders of not less than 25% in principal amount of the Outstanding Securities of that
series shall have made written request to the Trustee to institute proceedings in respect of such
Event of Default in its own name as Trustee hereunder;

     (3) such Holder or Holders have offered to the Trustee reasonable indemnity against the costs,
expenses and liabilities to be incurred in compliance with such request;

     (4) the Trustee for 60 days after its receipt of such notice, request and offer of indemnity
has failed to institute any such proceeding; and

     (5) no direction inconsistent with such written request has been given to the Trustee during
such 60-day period by the Holders of a majority in principal amount of the Outstanding Securities
of that series;

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it being understood and intended that no one or more of such Holders shall have any right in any
manner whatever by virtue of, or by availing of, any provision of this Indenture to affect, disturb
or prejudice the rights of any other of such Holders, or to obtain or to seek to obtain priority or
preference over any other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such Holders.

     SECTION 508. UNCONDITIONAL RIGHT OF HOLDERS TO RECEIVE PRINCIPAL, PREMIUM AND INTEREST AND TO
CONVERT. Notwithstanding any other provision in this Indenture, the Holder of any Security shall
have the right, which is absolute and unconditional, to receive payment of the principal of and any
premium and (subject to Section 307) interest on such Security on the respective Stated Maturities
expressed in such Security (or, in the case of redemption, on the Redemption Date) and to convert
such Security in accordance with the provisions in the form of Security of any particular series
pursuant to Section 301(9) and to institute suit for the enforcement of any such payment and right
to convert, and such rights shall not be impaired without the consent of such Holder.

     SECTION 509. RESTORATION OF RIGHTS AND REMEDIES. If the Trustee or any Holder has instituted
any proceeding to enforce any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to
such Holder, then and in every such case, subject to any determination in such proceeding, the
Company, the Trustee and the Holders shall be restored severally and respectively to their former
positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall
continue as though no such proceeding had been instituted.

     SECTION 510. RIGHTS AND REMEDIES CUMULATIVE. Except as otherwise provided with respect to
the replacement or payment of mutilated, destroyed, lost or stolen Securities in the last paragraph
of Section 306, no right or remedy herein conferred upon or reserved to the Trustee or to the
Holders is intended to be exclusive of any other right or remedy, and every right and remedy shall,
to the extent permitted by law, be cumulative and in addition to every other right and remedy given
hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy.

     SECTION 511. DELAY OR OMISSION NOT WAIVER. No delay or omission of the Trustee or of any
Holder of any Securities to exercise any right or remedy accruing upon any Event of Default shall
impair any such right or remedy or constitute a waiver of any such Event of Default or an
acquiescence therein. Every right and remedy given by this Article or by law to the Trustee or to
the Holders may be exercised from time to time, and as often as may be deemed expedient, by the
Trustee or by the Holders, as the case may be.

     SECTION 512. CONTROL BY HOLDERS. The Holders of a majority in principal amount of the
Outstanding Securities of any series shall have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power
conferred on the Trustee, with respect to the Securities of such series, provided that:

34

 

     (1) such direction shall not be in conflict with any rule of law or with this Indenture;

     (2) the Trustee may take any other action deemed proper by the Trustee which is not
inconsistent with such direction; and

     (3) subject to the provisions of Section 601, the Trustee shall have the right to decline to
follow any such direction if the Trustee in good faith shall, by a Responsible Officer or Officers
of the Trustee, determine that the proceeding so directed would involve the Trustee in personal
liability.

     SECTION 513. WAIVER OF PAST DEFAULTS. The Holders of not less than a majority in principal
amount of the Outstanding Securities of any series may on behalf of the Holders of all the
Securities of such series waive any past default hereunder with respect to such series and its
consequences, except a default:

     (1) in the payment of the principal of or any premium or interest on any Security of such
series, or

     (2) in respect of a covenant or provision hereof which under Article 9 cannot be modified or
amended without the consent of the Holder of each Outstanding Security of such series affected.

     Upon any such waiver, such default shall cease to exist, and any Event of Default arising
therefrom shall be deemed to have been cured, for every purpose of this Indenture; but no such
waiver shall extend to any subsequent or other default or impair any right consequent thereon.

     SECTION 514. UNDERTAKING FOR COSTS. In any suit for the enforcement of any right or remedy
under this Indenture, or in any suit against the Trustee for any action taken, suffered or omitted
by it as Trustee, a court may require any party litigant in such suit to file an undertaking to pay
the costs of such suit, and may assess costs against any such party litigant, in the manner and to
the extent provided in the Trust Indenture Act; provided that neither this Section nor the Trust
Indenture Act shall be deemed to authorize any court to require such an undertaking or to make such
an assessment in any suit instituted by the Company.

ARTICLE 6.

THE TRUSTEE

     SECTION 601. CERTAIN DUTIES AND RESPONSIBILITIES. The Trustee, prior to the occurrence of an
Event of Default and after the curing or waiving of all Events of Default which may have occurred,
undertakes to perform such duties and only such duties as are specifically set forth in this
Indenture. In case an Event of Default to the actual knowledge of a Responsible Officer of the
Trustee has occurred, has not been waived and is continuing, the Trustee shall exercise such of the
rights and powers vested in it by this Indenture, and use the same degree of care and skill in
their exercise, as a prudent man would exercise or use under the circumstances in the conduct of
his own affairs.

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     No provision of this Indenture shall be construed to relieve the Trustee from liability for
its own negligent actions, its own negligent failure to act or its own willful misconduct, except
that:

     (1) prior to the occurrence of an Event of Default and after the curing or waiving of all such
Events of Default which may have occurred;

     (a) the duties and obligations of the Trustee shall be determined solely by the express
provisions of this Indenture, and the Trustee shall not be liable except for the performance
of such duties and obligations as are specifically set forth in this Indenture, and no
implied covenants or obligations shall be read into this Indenture against the Trustee; and

     (b) in the absence of bad faith on the part of the Trustee, the Trustee may
conclusively rely, as to the truth of the statements and the correctness of the opinions
expressed therein, upon any statements, certificates or opinions furnished to the Trustee
and conforming to the requirements of this Indenture; but in the case of any such
statements, certificates or opinions which by any provision hereof are specifically required
to be furnished to the Trustee, the Trustee shall be under a duty to examine the same to
determine whether or not they conform to the requirements of this Indenture;

     (2) the Trustee shall not be liable for any error of judgment made in good faith by a
Responsible Officer or Responsible Officers of the Trustee, unless it shall be proved that the
Trustee was negligent in ascertaining the pertinent facts; and

     (3) the Trustee shall not be liable with respect to any action taken or omitted to be taken by
it in good faith in accordance with the direction of the Holders of not less than a majority in
principal amount of the Securities at the time outstanding relating to the time, method and place
of conducting a proceeding for any remedy available to the Trustee, or exercising any trust or
power conferred upon the Trustee, under this Indenture.

     None of the provisions contained in this Indenture shall require the Trustee to expend or risk
its own funds or otherwise incur personal financial liability in the performance of any of its
duties or in the exercise of any of its rights or powers, if there shall be reasonable ground for
believing that the repayment of such funds or adequate indemnity against such liability is not
reasonably assured to it.

     This Section is in furtherance of and subject to Sections 315 and 316 of the Trust Indenture
Act.

     SECTION 602. NOTICE OF DEFAULTS. If a default occurs and is continuing with respect to the
Securities of any series and if it is known to a Responsible Officer of the Trustee, the Trustee
shall give the Holders of the Securities of such series, notice of such default within 90 days
after it occurs or, if later, after a Responsible Officer of the Trustee has knowledge of such
default. Except in the case of a default in payment of principal of, premium on or interest on any
Security of any series, the Trustee may withhold the notice if and so long as its corporate trust
committee or a committee of its Responsible Officers in good faith determines that withholding the
notice is in the interests of the Holders of Securities of that series. For purposes

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of this Section, the term default means any event that is, or after notice or lapse of time or
both would become, an Event of Default with respect to Securities of such series.

     SECTION 603. CERTAIN RIGHTS OF TRUSTEE. Subject to the provisions of Section 601:

     (1) the Trustee may conclusively rely and shall be fully protected in acting or refraining
from acting upon any resolution, certificate, statement, instrument, opinion, report, notice,
request, direction, consent, order, bond, debenture, note, other evidence of indebtedness or other
paper or document believed by it to be genuine and to have been signed or presented by the proper
party or parties;

     (2) any request or direction of the Company mentioned herein shall be sufficiently evidenced
by a Company Request or Company Order, and any resolution of the Board of Directors shall be
sufficiently evidenced by a Board Resolution;

     (3) whenever in the administration of this Indenture the Trustee shall deem it desirable that
a matter be proved or established prior to taking, suffering or omitting any action hereunder, the
Trustee (unless other evidence be herein specifically prescribed) may, in the absence of bad faith
on its part, rely upon an Officers’ Certificate;

     (4) the Trustee may consult with counsel and the advice of such counsel or any Opinion of
Counsel shall be full and complete authorization and protection in respect of any action taken,
suffered or omitted by it hereunder in good faith and in reliance thereon;

     (5) the Trustee shall be under no obligation to exercise any of the rights or powers vested in
it by this Indenture at the request or direction of any of the Holders pursuant to this Indenture,
unless such Holders shall have offered to the Trustee reasonable security or indemnity against the
costs, expenses and liabilities which might be incurred by it in compliance with such request or
direction;

     (6) the Trustee shall not be bound to make any investigation into the facts or matters stated
in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction,
consent order, bond, debenture, note, other evidence of indebtedness or other paper or document,
but the Trustee, in its discretion may make such further inquiry or investigation into such facts
or matters as it may see fit, and, if the Trustee shall determine to make such further inquiry or
investigation, it shall be entitled to examine the books, records and premises of the Company,
personally or by agent or attorney at the sole cost and expense of the Company;

     (7) the Trustee may execute any of the trusts or powers hereunder or perform any duties
hereunder either directly or by or through agents or attorneys and the Trustee shall not be
responsible for any misconduct or negligence on the part of, or for the supervision of, any agent
or attorney appointed with due care by it hereunder;

     (8) in the event the Trustee is also acting as Paying Agent, Authenticating Agent or Security
Registrar hereunder, the rights and protections afforded to the Trustee pursuant to this Indenture
shall also be afforded to such Paying Agent, Authenticating Agent or Security Registrar;

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     (9) the Trustee shall not be charged with knowledge of an Event of Default unless a
Responsible Officer of the Trustee obtains actual knowledge of such event or the Trustee receives
written notice of such event from the Company or from Holders of Securities of any series so
affected evidencing no less than 51% of the aggregate outstanding principal amount of Securities of
such series; and

     (10) without prejudice to any other rights available to the Trustee under applicable law, when
the Trustee incurs expenses or renders services in connection with an Event of Default specified in
Section 501(5) or Section 501(6), such expenses (including the fees and expenses of its counsel)
and the compensation for such services are intended to constitute expenses of administration under
any bankruptcy or insolvency law.

     SECTION 604. NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF SECURITIES. The recitals contained
herein and in the Securities, except the Trustee’s certificates of authentication, shall be taken
as the statements of the Company, and neither the Trustee nor any Authenticating Agent assumes any
responsibility for their correctness. The Trustee makes no representations as to the validity or
sufficiency of this Indenture or of the Securities. Neither the Trustee nor any Authenticating
Agent shall be accountable for the use or application by the Company of Securities or the proceeds
thereof.

     SECTION 605. MAY HOLD SECURITIES. The Trustee, any Authenticating Agent, any Paying Agent,
any Security Registrar or any other agent of the Company, in its individual or any other capacity,
may become the owner or pledgee of Securities and, subject to Sections 608 and 613, may otherwise
deal with the Company with the same rights it would have if it were not Trustee, Authenticating
Agent, Paying Agent, Security Registrar or such other agent.

     SECTION 606. MONEY HELD IN TRUST. Money held by the Trustee in trust hereunder need not be
segregated from other funds except to the extent required by law. The Trustee shall be under no
liability for interest on any money received by it hereunder except as otherwise agreed with the
Company.

     SECTION 607. COMPENSATION AND REIMBURSEMENT. The Company agrees:

     (1) to pay to the Trustee from time to time reasonable compensation for all services rendered
by it hereunder (which compensation shall not be limited by any provision of law in regard to the
compensation of a trustee of an express trust);

     (2) except as otherwise expressly provided herein, to reimburse the Trustee upon its request
for all reasonable expenses, disbursements and advances incurred or made by the Trustee in
accordance with any provision of this Indenture (including the reasonable compensation and the
expenses and disbursements of its agents and counsel), except any such expense, disbursement or
advance as may be attributable to its negligence or bad faith; and

     (3) to indemnify the Trustee and its officers, directors, agents, and employees for, and to
hold it and its officers, directors, agents, and employees harmless against, any loss, liability or
expense incurred without negligence or bad faith on its part, arising out of or in connection with
the acceptance or administration of the trust or trusts hereunder, including the costs and expenses

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of defending itself against any claim or liability in connection with the exercise or
performance of any of its powers or duties hereunder.

     As security for the performance of the obligations of the Company under this Section, the
Trustee shall have a lien prior to the Securities upon all property and funds held or collected by
the Trustee as such, except funds held in trust for the benefit of the Holders of particular
Securities.

     SECTION 608. CONFLICTING INTERESTS. If the Trustee has or shall acquire a conflicting
interest within the meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent and in the manner provided by, and subject to the provisions of,
the Trust Indenture Act and this Indenture. To the extent permitted by such Act, the Trustee shall
not be deemed to have a conflicting interest by virtue of being a trustee under this Indenture with
respect to Securities of more than one series.

     SECTION 609. CORPORATE TRUSTEE REQUIRED; ELIGIBILITY. There shall at all times be a Trustee
hereunder, which may be Trustee hereunder for Securities of one or more other series. Each Trustee
shall be a Person that is eligible pursuant to the Trust Indenture Act to act as such and has a
combined capital and surplus of at least $50,000,000 and has its Corporate Trust Office in the City
of New York. If any such Person publishes reports of condition at least annually, pursuant to law
or to the requirements of its supervising or examining authority, then for the purposes of this
Section and to the extent permitted by the Trust Indenture Act, the combined capital and surplus of
such Person shall be deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published. If at any time the Trustee with respect to the Securities of any
series shall cease to be eligible in accordance with the provisions of this Section, it shall
resign immediately in the manner and with the effect hereinafter specified in this Article.

     SECTION 610. RESIGNATION AND REMOVAL; APPOINTMENT OF SUCCESSOR. No resignation or removal of
the Trustee and no appointment of a successor Trustee pursuant to this Article shall become
effective until the acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 611.

     The Trustee may resign at any time with respect to the Securities of one or more series by
giving written notice thereof to the Company. If the instrument of acceptance by a successor
Trustee required by Section 611 shall not have been delivered to the Trustee within 30 days after
the giving of such notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor Trustee with respect to the Securities of such
series.

     The Trustee may be removed at any time with respect to the Securities of any series by Act of
the Holders of a majority in principal amount of the Outstanding Securities of such series,
delivered to the Trustee and to the Company.

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     If at any time:

     (1) the Trustee shall fail to comply with Section 608 after written request therefor by the
Company or by any Holder who has been a bona fide Holder of a Security for at least six months,

     (2) the Trustee shall cease to be eligible under Section 609 and shall fail to resign after
written request therefor by the Company or by any such Holder, or

     (3) the Trustee shall become incapable of acting or shall be adjudged a bankrupt or insolvent
or a receiver of the Trustee or of its property shall be appointed or any public officer shall take
charge or control of the Trustee or of its property or affairs for the purpose of rehabilitation,
conservation or liquidation;

then, in any such case, (A) the Company by a Board Resolution may remove the Trustee with respect
to all Securities, or (B) subject to Section 514, any Holder who has been a bona fide Holder of a
Security for at least six months may, on behalf of himself and all others similarly situated,
petition any court of competent jurisdiction for the removal of the Trustee with respect to all
Securities and the appointment of a successor Trustee or Trustees.

     If the Trustee shall resign, be removed or become incapable of acting, or if a vacancy shall
occur in the office of Trustee for any cause, with respect to the Securities of one or more series,
the Company, by a Board Resolution, shall promptly appoint a successor Trustee or Trustees with
respect to the Securities of that or those series (it being understood that any such successor
Trustee may be appointed with respect to the Securities of one or more or all of such series and
that at any time there shall be only one Trustee with respect to the Securities of any particular
series) and shall comply with the applicable requirements of Section 611. If, within one year after
such resignation, removal or incapability, or the occurrence of such vacancy, a successor Trustee
with respect to the Securities of any series shall be appointed by act of the Holders of a majority
in principal amount of the Outstanding Securities of such series delivered to the Company and the
retiring Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance of such
appointment in accordance with the applicable requirements of Section 611, become the successor
Trustee with respect to the Securities of such series and to that extent supersede the successor
Trustee appointed by the Company. If no successor Trustee with respect to the Securities of any
series shall have been so appointed by the Company or the Holders and accepted appointment in the
manner required by Section 611, any Holder who has been a bona fide Holder of a Security of such
series for at least six months may, on behalf of himself and all others similarly situated,
petition any court of competent jurisdiction for the appointment of a successor Trustee with
respect to the Securities of such series.

     The Company shall give notice of each resignation and each removal of the Trustee with respect
to the Securities of any series and each appointment of a successor Trustee with respect to the
Securities of any series to all Holders of Securities of such series in the manner provided in
Section 106. Each notice shall include the name of the successor Trustee with respect to the
Securities of such series and the address of its corporate trust office.

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     SECTION 611. ACCEPTANCE OF APPOINTMENT BY SUCCESSOR. In case of the appointment hereunder of
a successor Trustee with respect to all Securities, every such successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Trustee an instrument accepting
such appointment, and thereupon the resignation or removal of the retiring Trustee shall become
effective and such successor Trustee, without any further act, deed or conveyance, shall become
vested with all the rights, powers, trusts and duties of the retiring Trustee; but, on the request
of the Company or the successor Trustee, such retiring Trustee shall, upon payment of its charges,
execute and deliver an instrument transferring to such successor Trustee all the rights, powers and
trusts of the retiring Trustee and shall duly assign, transfer and deliver to such successor
Trustee all property and money held by such retiring Trustee hereunder.

     In case of the appointment hereunder of a successor Trustee with respect to the Securities of
one or more (but not all) series, the Company, the retiring Trustee and each successor Trustee with
respect to the Securities of one or more series shall execute and deliver an indenture supplemental
hereto wherein each successor Trustee shall accept such appointment and which (1) shall contain
such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each
successor Trustee all the rights, powers, trusts and duties of the retiring Trustee with respect to
the Securities of that or those series to which the appointment of such successor Trustee relates,
(2) if the retiring Trustee is not retiring with respect to all Securities, shall contain such
provisions as shall be deemed necessary or desirable to confirm that all the rights, powers, trusts
and duties of the retiring Trustee with respect to the Securities of that or those series as to
which the retiring Trustee is not retiring shall continue to be vested in the retiring Trustee, and
(3) shall add to or change any of the provisions of this Indenture as shall be necessary to provide
for or facilitate the administration of the trusts hereunder by more than one Trustee, it being
understood that nothing herein or in such supplemental indenture shall constitute such Trustees
co-trustees of the same trust and that each such Trustee shall be trustee of a trust or trusts
hereunder separate and apart from any trust or trusts hereunder administered by any other such
Trustee; and upon the execution and delivery of such supplemental indenture the resignation or
removal of the retiring Trustee shall become effective to the extent provided therein and each such
successor Trustee, without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or
those series to which the appointment of such successor Trustee relates; but, on request of the
Company or any successor Trustee, such retiring Trustee shall duly assign, transfer and deliver to
such successor Trustee all property and money held by such retiring Trustee hereunder with respect
to the Securities of that or those series to which the appointment of such successor Trustee
relates.

     Upon request of any such successor Trustee, the Company shall execute any and all instruments
for more fully and certainly vesting in and confirming to such successor Trustee all such rights,
powers and trusts referred to in the first or second preceding paragraph, as the case may be.

     No successor Trustee shall accept its appointment unless at the time of such acceptance such
successor Trustee shall be qualified and eligible under this Article. No trustee hereunder shall
be liable for the acts or omissions of any successor Trustee.

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     SECTION 612. MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO BUSINESS. Any corporation
into which the Trustee may be merged or converted or with which it may be consolidated, or any
corporation resulting from any merger, conversion or consolidation to which the Trustee shall be a
party, or any corporation succeeding to all or substantially all the corporate trust business of
the Trustee, shall be the successor of the Trustee hereunder, provided such corporation shall be
otherwise qualified and eligible under this Article, without the execution or filing of any paper
or any further act on the part of any of the parties hereto. In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such authentication and
deliver the Securities so authenticated with the same effect as if such successor Trustee had
itself authenticated such Securities.

     SECTION 613. PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY. If and when the Trustee
shall be or become a creditor of the Company (or any other obligor upon the Securities), the
Trustee shall be subject to the provisions of the Trust Indenture Act regarding the collection of
claims against the Company (or any such other obligor).

     SECTION 614. APPOINTMENT OF AUTHENTICATING AGENT. The Trustee may appoint an Authenticating
Agent or Agents with respect to one or more series of Securities which shall be authorized to act
on behalf of the Trustee to authenticate Securities of such series issued upon original issue and
upon exchange, registration of transfer or partial redemption thereof or pursuant to Section 306,
and Securities so authenticated shall be entitled to the benefits of this Indenture and shall be
valid and obligatory for all purposes as if authenticated by the Trustee hereunder. Wherever
reference is made in this Indenture to the authentication and delivery of Securities by the Trustee
or the Trustee’s certificate of authentication, such reference shall be deemed to include
authentication and delivery on behalf of the Trustee by an Authenticating Agent and a certificate
of authentication executed on behalf of the Trustee by an Authenticating Agent. Each
Authenticating Agent shall be acceptable to the Company and shall at all times be a corporation
organized and doing business under the laws of the United States of America, any State thereof or
the District of Columbia, authorized under such laws to act as Authenticating Agent, having a
combined capital and surplus of not less than $50,000,000 and subject to supervision or examination
by Federal or State authority. If such Authenticating Agent publishes reports of condition at
least annually, pursuant to law or to the requirements of said supervising or examining authority,
then for the purposes of this Section, the combined capital and surplus of such Authenticating
Agent shall be deemed to be its combined capital and surplus as set forth in its most recent report
of condition so published. If at any time an Authenticating Agent shall cease to be eligible in
accordance with the provisions of this Section, such Authenticating Agent shall resign immediately
in the manner and with the effect specified in this Section.

     Any corporation into which an Authenticating Agent may be merged or converted or with which it
may be consolidated, or any corporation resulting from any merger, conversion or consolidation to
which such Authenticating Agent shall be a party, or any corporation succeeding to the corporate
agency or corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible under this Section,
without the execution or filing of any paper or any further act on the part of the Trustee or the
Authenticating Agent.

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     An Authenticating Agent may resign at any time by giving written notice thereof to the Trustee
and to the Company. The Trustee may at any time terminate the agency of an Authenticating Agent by
giving written notice thereof to such Authenticating Agent and to the Company. Upon receiving such
a notice of resignation or upon such a termination, or in case at any time such Authenticating
Agent shall cease to be eligible in accordance with the provisions of this Section, the Trustee may
appoint a successor Authenticating Agent which shall be acceptable to the Company and shall give
notice of such appointment by first-class mail, postage prepaid, to all Holders of Securities of
the series with respect to which such Authenticating Agent will serve. Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become vested with all the
rights, powers and duties of its predecessor hereunder, with like effect as if originally named as
an Authenticating Agent. No successor Authenticating Agent shall be appointed unless eligible
under the provisions of this Section.

     The Company agrees to pay to each Authenticating Agent from time to time reasonable
compensation for its services under this Section. If an appointment with respect to one or more
series is made pursuant to this Section, the Securities of such series may have endorsed thereon,
in addition to the Trustee’s certificate of authentication, an alternative certificate of
authentication in the following form:

     This is one of the Securities of the series designated therein referred to in the
within-mentioned Indenture.

	 	 	 	 	 	 	 

	 	 	U.S. Bank National Association, as Trustee	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

As Authenticating Agent
	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Authorized Officer
	 	 

ARTICLE 7.

HOLDERS’ LISTS AND REPORTS BY TRUSTEE AND COMPANY

     SECTION 701. COMPANY TO FURNISH TRUSTEE NAMES AND ADDRESSES OF HOLDERS. The Company will
furnish or cause to be furnished to the Trustee,

     (1) semi-annually, not later than June 30 and December 31 in each year, a list in such form as
the Trustee may reasonably require, of the names and addresses of the Holders of Securities of each
series as of the preceding June 30 or December 31 as the case may be; and

     (2) at such other times as the Trustee may request in writing, within 30 days after the
receipt by the Company of any such request, a list of similar form and content as of a date not
more than 15 days prior to the time such list is furnished;

excluding from any such list names and addresses received by the Trustee in its capacity as
Security Registrar.

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     SECTION 702. PRESERVATION OF INFORMATION; COMMUNICATIONS TO HOLDERS. The Trustee shall
preserve, in as current a form as is reasonably practicable, the names and addresses of Holders
contained in the most recent list furnished to the Trustee as provided in Section 701 and the names
and addresses of Holders received by the Trustee in its capacity as Security Registrar. The
Trustee may destroy any list furnished to it as provided in Section 701 upon receipt of a new list
so furnished.

     The rights of Holders to communicate with other Holders with respect to their rights under
this Indenture or under the Securities, and the corresponding rights and privileges of the Trustee,
shall be as provided by the Trust Indenture Act.

     Every Holder of Securities, by receiving and holding the same, agrees with the Company and the
Trustee that neither the Company nor the Trustee nor any agent of either of them shall be held
accountable by reason of any disclosure of information as to names and addresses of Holders made
pursuant to the Trust Indenture Act.

     SECTION 703. REPORTS BY TRUSTEE. The Trustee shall transmit to the Holders such reports
concerning the Trustee and its actions under this Indenture as may be required pursuant to the
Trust Indenture Act at the times and in the manner provided pursuant thereto.

     Reports so required to be transmitted at stated intervals of not more than 12 months shall be
transmitted no later than July 15 in each calendar year, commencing with the first July 15 after
the first issuance of securities pursuant to this Indenture.

     A copy of each such report shall, at the time of such transmission to Holders, be filed by the
Trustee with each stock exchange upon which any Securities are listed, with the Commission and with
the Company. The Company will notify the Trustee when any Securities are listed on any stock
exchange.

ARTICLE 8.

CONSOLIDATION, MERGER OR SALE OF ASSETS

     SECTION 801. CONSOLIDATION, MERGER OR SALE OF ASSETS BY THE COMPANY. The Company shall not
consolidate with or merge into any other Person or sell, assign, convey or transfer or otherwise
dispose of all or substantially all of its properties and assets to any Person, unless:

     (a) the Person formed by such consolidation or into which the Company is merged or the
Person which acquires by conveyance or transfer the properties and assets of the Company
shall be a Person organized and validly existing under the laws of the United States of
America, any State thereof or the District of Columbia, and shall expressly assume, by an
indenture supplemental hereto, executed and delivered to the Trustee, in form satisfactory
to the Trustee, the due and punctual payment of the principal of (and premium, if any) and
interest on all the Notes and the performance of every covenant of this Indenture on the
part of the Company to be performed or observed;

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     (b) immediately after giving effect to such transaction, no Event of Default, and no
event which, after notice or lapse of time, or both, would become an Event of Default, shall
have occurred and be continuing; and

     (c) the Company has delivered to the Trustee an Officers’ Certificate and an Opinion of
Counsel each stating that such consolidation, merger, conveyance or transfer and such
supplemental indenture comply with paragraphs (a) and (b) of this section 801 and that all
conditions precedent herein provided for relating to such transaction have been complied
with.

     SECTION 802. SUCCESSOR SUBSTITUTED. Upon any consolidation of the Company with, or merger of
the Company into, any other Person or any conveyance or transfer of all or substantially all of the
properties and assets of the Company in accordance with Section 801, the successor Person formed by
such consolidation or into which the Company is merged or to which such conveyance or transfer is
made shall succeed to, and be substituted for, and may exercise every right and power of, the
Company under this Indenture with the same effect as if such successor Person had been named as the
Company herein, and thereafter the predecessor Person shall be relieved of all obligations and
covenants under this Indenture and the Securities.

ARTICLE 9.

SUPPLEMENTAL INDENTURES

     SECTION 901. SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF HOLDERS. Without the consent of any
Holders, the Company, when authorized by a Board Resolution, the Guarantors, if any, when
authorized by a Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form satisfactory to the Trustee, for any of
the following purposes:

     (1) to evidence the succession of another Person to the Company and the assumption by any such
successor of the covenants of the Company herein and in the Securities or the Guarantees, if any;

     (2) to add to the covenants of the Company for the benefit of the Holders of all or any series
of Securities (and if such covenants are to be for the benefit of less than all series of
Securities, stating that such covenants are expressly being included solely for the benefit of such
series) or to surrender any right or power herein conferred upon the Company;

     (3) to add any additional Events of Default for the benefit of the Holders of all or any
series of Securities (and if such additional Events of Default are to be for the benefit of less
than all series of Securities, stating that such additional Events of Default are expressly being
included solely for the benefit of such series);

     (4) to add to or change any of the provisions of this Indenture to such extent as shall be
necessary to permit or facilitate the issuance of Securities in bearer form, registrable or not
registrable as to principal, and with or without interest coupons, or to permit or facilitate the
issuance of Securities in uncertificated form;

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     (5) to add to, change or eliminate any of the provisions of this Indenture in respect to one
or more series of Securities, provided that any such addition, change or elimination (A) shall
neither (i) apply to any Security or series created prior to the execution of such supplemental
indenture and entitled to the benefit of such provision nor (ii) modify the rights of the Holder of
any such Security with respect to such provision or (B) shall become effective only when there is
no such Security Outstanding;

     (6) to secure the Securities;

     (7) to establish the form or terms of Securities or the Guarantees, if any, of any series as
permitted by Sections 201 and 301;

     (8) to evidence and provide for the acceptance of appointment hereunder by a successor Trustee
with respect to the Securities of one or more series and to add to or change any of the provisions
of this Indenture as shall be necessary to provide for or facilitate the administration of the
trusts hereunder by more than one Trustee, pursuant to the requirements of Section 611;

     (9) to cure any ambiguity, to correct or supplement any provision herein which may be
defective or inconsistent with any other provision herein, or to make any other provisions with
respect to matters or questions arising under this Indenture; provided that such action pursuant to
this Clause (9) shall not adversely affect the interests of the Holders of Securities of any series
in any material respect;

     (10) to make provisions with respect to the conversion rights of Holders, including providing
for the conversion of the Securities into any security or securities of the Company; or

     (11) to provide for the Guarantees of the Securities of any series and/or to specify the
ranking of the obligations of each Guarantor under its respective Guarantee.

     SECTION 902. SUPPLEMENTAL INDENTURES WITH CONSENT OF HOLDERS. With the consent of the
Holders of not less than a majority in principal amount of the Outstanding Securities of each
series affected by such supplemental indenture, by Act of said Holders delivered to the Company and
the Trustee, the Company, when authorized by a Board Resolution, the Guarantors, if any, authorized
by a Board Resolution, and the Trustee may enter into an indenture or indentures supplemental
hereto for the purpose of adding any provisions to or changing in any manner or eliminating any of
the provisions of this Indenture applicable to such series or of modifying in any manner the rights
of the Holders of Securities of such series under this Indenture; provided, however, that no such
supplemental indenture shall, without the consent of the Holder of each Outstanding Security
affected thereby:

     (1) change the Stated Maturity of the principal of, or any installment of principal of or
interest on, any Security, or reduce the principal amount thereof or the rate of interest thereon
(including any change in the index, indices or formula pursuant to which such rate is determined
that would reduce such rate for any period) or any premium payable upon the redemption thereof,
change the right to convert any Security in accordance with the provisions in the form of such
Security pursuant to Section 301(9) hereof, or reduce the amount of the principal of an Original
Issue Discount Security or any other Security which would be due and payable upon a declaration of
acceleration of the Maturity thereof pursuant to Section 502, or change any Place

46

 

of Payment where, or the coin or currency in which, any Security or any premium or interest
thereon is payable, or impair the right to institute suit for the enforcement of any such payment
on or after the Stated Maturity thereof (or, in the case of redemption, on or after the Redemption
Date) or any such right to convert, or

     (2) reduce the percentage in principal amount of the Outstanding Securities of any series, the
consent of whose Holders is required for any such supplemental indenture, or the consent of whose
Holders is required for any waiver (of compliance with certain provisions of this Indenture or
certain defaults hereunder and their consequences) provided for in this Indenture, or

     (3) modify any of the provisions of this Section, Section 513 or Section 1008, except to
increase any such percentage or to provide that certain other provisions of this Indenture cannot
be modified or waived without the consent of the Holder of each Outstanding Security affected
thereby; provided, however, that this clause shall not be deemed to require the consent of any
Holder with respect to changes in the references to the Trustee and concomitant changes in this
Section and Section 1008, or the deletion of this proviso, in accordance with the requirements of
Sections 611 and 901(8), or

     (4) release any Guarantor from its obligations under its Guarantee (other than in accordance
with the terms thereof) without the consent of the Holder of each Security so affected.

     A supplemental indenture which changes or eliminates any covenant or other provision of this
Indenture which has expressly been included solely for the benefit of one or more particular series
of Securities, or which modifies the rights of the Holders of Securities of such series with
respect to such covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

     It shall not be necessary for any Act of Holders under this Section to approve the particular
form of any proposed supplemental indenture, but it shall be sufficient if such Act of Holders
shall approve the substance thereof.

     SECTION 903. EXECUTION OF SUPPLEMENTAL INDENTURES. In executing, or accepting the additional
trusts created by, any supplemental indenture permitted by this Article or the modifications
thereby of the trusts created by this Indenture, the Trustee shall be entitled to receive, and
(subject to Section 601) shall be fully protected in relying upon, an Opinion of Counsel stating
that the execution of such supplemental indenture is authorized or permitted by this Indenture.
The Trustee may, but shall not be obligated to, enter into any such supplemental indenture which
affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise.

     SECTION 904. EFFECT OF SUPPLEMENTAL INDENTURES. Upon the execution of any supplemental
indenture under this Article, this Indenture shall be modified in accordance therewith, and such
supplemental indenture shall form a part of this Indenture for all purposes; and every Holder of
Securities theretofore or thereafter authenticated and delivered hereunder shall be bound thereby.

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     SECTION 905. CONFORMITY WITH THE TRUST INDENTURE ACT. Every supplemental indenture executed
pursuant to this Article shall conform to the requirements of the Trust Indenture Act.

     SECTION 906. REFERENCE IN SECURITIES TO SUPPLEMENTAL INDENTURE. Securities of any series
authenticated and delivered after the execution of any supplemental indenture pursuant to this
Article may, and shall if required by the Trustee, bear a notation in form approved by the Trustee
as to any matter provided for in such supplemental indenture. If the Company shall so determine,
new Securities of any series so modified as to conform, in the opinion of the Trustee and the
Company, to any such supplemental indenture may be prepared and executed by the Company and
authenticated and delivered by the Trustee in exchange for Outstanding Securities of such series.

ARTICLE 10.

COVENANTS

     SECTION 1001. PAYMENT OF PRINCIPAL, PREMIUM AND INTEREST. The Company covenants and agrees
for the benefit of the Holders of Securities that it will duly and punctually pay the principal of
and any premium and interest on the Securities in accordance with the terms of such Securities and
this Indenture.

     SECTION 1002. MAINTENANCE OF OFFICE OR AGENCY. The Company will maintain in each Place of
Payment for any series of Securities an office or agency where Securities of that series may be
presented or surrendered for payment, where Securities of that series may be surrendered for
registration of transfer or exchange and where notices and demands to or upon the Company in
respect of the Securities of that series and this Indenture may be served. The Company will give
prompt written notice to the Trustee of the location, and any change in the location, of such
office or agency. If at any time the Company shall fail to maintain any such required office or
agency or shall fail to furnish the Trustee with the address thereof, such presentations,
surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee,
and the Company hereby appoints the Trustee as its agent to receive all such presentations,
surrenders, notices and demands.

     The Company may also from time to time designate one or more other offices or agencies where
the Securities of one or more series may be presented or surrendered for any or all such purposes
and may from time to time rescind such designations; provided, however, that no such designation or
rescission shall in any manner relieve the Company of its obligation to maintain an office or
agency in each Place of Payment for Securities of any series for such purposes. The Company will
give prompt written notice to the Trustee of any such designation or rescission and of any change
in the location of any such other office or agency.

     SECTION 1003. MONEY FOR SECURITIES PAYMENTS TO BE HELD IN TRUST. If the Company shall at any
time act as its own Paying Agent with respect to any series of Securities, it will, on or before
each due date of the principal of or any premium or interest on any of the Securities of that
series, segregate and hold in trust for the benefit of the Persons entitled thereto a sum
sufficient to pay the principal and any premium and interest so becoming

48

 

due until such sums shall be paid to such Persons or otherwise disposed of as herein provided
and will promptly notify the Trustee of its action or failure so to act.

     Whenever the Company shall have one or more Paying Agents for any series of Securities, it
will, prior to each due date of the principal of or any premium or interest on any Securities of
that series, deposit with a Paying Agent a sum sufficient to pay such amount, such sum to be held
as provided by the Trust Indenture Act, and (unless such Paying Agent is the Trustee) the Company
will promptly notify the Trustee of its action or failure so to act.

     The Company will cause each Paying Agent for any series of Securities other than the Trustee
to execute and deliver to the Trustee an instrument in which such Paying Agent shall agree with the
Trustee, subject to the provisions of this Section, that such Paying Agent will (1) comply with the
provisions of the Trust Indenture Act applicable to it as a Paying Agent and (2) during the
continuance of any default by the Company (or any other obligor upon the Securities of that series)
in the making of any payment in respect of the Securities of that series, upon the written request
of the Trustee, forthwith pay to the Trustee all sums held in trust by such Paying Agent for
payment in respect of the Securities of that series.

     The Company may at any time, for the purpose of obtaining the satisfaction and discharge of
this Indenture or for any other purpose, pay, or by Company Order direct any Paying Agent to pay,
to the Trustee all sums held in trust by the Company or such Paying Agent, such sums to be held by
the Trustee upon the same trusts as those upon which such sums were held by the Company or such
Paying Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying Agent shall be
released from all further liability with respect to such money.

     Any money deposited with the Trustee or any Paying Agent, or then held by the Company, in
trust for the payment of the principal of or any premium or interest on any Security of any series
and remaining unclaimed for two years after such principal, premium or interest has become due and
payable shall be paid to the Company on Company Request, or (if then held by the Company) shall be
discharged from such trust; and the Holder of such Security shall thereafter, as an unsecured
general creditor, look only to the Company for payment thereof, and all liability of the Trustee or
such Paying Agent with respect to such trust money, and all liability of the Company as trustee
thereof, shall thereupon cease; provided, however, that the Trustee or such Paying Agent, before
being required to make any such repayment, may at the expense of the Company cause to be published
once, in a newspaper published in the English language, customarily published on each Business Day
and of general circulation in the Borough of Manhattan, The City of New York, notice that such
money remains unclaimed and that, after a date specified therein, which shall not be less than 30
days from the date of such publication, any unclaimed balance of such money then remaining will be
repaid to the Company.

     SECTION 1004. COMMISSION REPORTS. The Company shall deliver to the Trustee, within 15 days
after it files them with the Commission, copies of the annual reports and of the information,
documents, and other reports (or copies of such portions of any of the foregoing as the Commission
may by rules and regulations prescribe) which the Company is required to file with the Commission
pursuant to Section 13 or 15(d) of the Exchange Act. The Company also shall comply with the other
provisions of Section 314(a) of the Trust Indenture Act.

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     Delivery of such reports, information and documents to the Trustee is for informational
purposes only and the Trustee’s receipt of such shall not constitute constructive notice of any
information contained therein or determinable from information contained therein, including the
Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to
rely exclusively on Officers’ Certificates).

     SECTION 1005. COMPLIANCE CERTIFICATE.

     (1) The Company shall deliver to the Trustee, within 120 days after the end of each fiscal
year of the Company, an Officers’ Certificate stating that a review of the activities of the
Company and its Subsidiaries during the preceding fiscal year has been made under the supervision
of the officers signing the Officers’ Certificate, with a view to determining whether the Company
has kept, observed, performed and fulfilled its obligations under this Indenture, and further
stating, as to each such officer signing such Officers’ Certificate, that to the best of his
knowledge the Company has kept, observed, performed and fulfilled each and every covenant (without
regard to periods of grace or notice requirements) contained in this Indenture and is not in
default in the performance or observance of any of the terms, provisions and conditions hereof (or,
if a Event of Default shall have occurred, describing all such Events of Default of which he may
have knowledge).

     (2) The Company will, so long as any of the Securities are outstanding, deliver to the
Trustee, forthwith upon becoming aware of any Event of Default, an Officers’ Certificate specifying
such Event of Default and what action the Company is taking or proposes to take with respect
thereto.

     SECTION 1006. STAY, EXTENSION AND USURY LAWS. The Company covenants (to the extent that it
may lawfully do so) that it will not at any time insist upon, plead, or in any manner whatsoever
claim or take the benefit or advantage of, any stay, extension or usury law wherever enacted, now
or at any time hereafter in force, which may affect the covenants or the performance of this
Indenture or the Securities; and the Company (to the extent it may lawfully do so) hereby expressly
waives all benefit or advantage of any such law and covenants that it will not, by resort to any
such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but
will suffer and permit the execution of every such power as though no such law has been enacted.

     SECTION 1007. CORPORATE EXISTENCE. Subject to Article 8, the Company will do or cause to be
done all things necessary to preserve and keep in full force and effect its corporate existence and
the corporate, partnership or other existence of each Significant Subsidiary in accordance with the
respective organizational documents of each Significant Subsidiary and the rights (charter and
statutory), licenses and franchises of the Company and its Significant Subsidiaries; provided,
however, that the Company shall not be required to preserve any such right, license or franchise,
or the corporate, partnership or other existence of any Significant Subsidiary, if the Board of
Directors shall determine that the preservation thereof is no longer desirable in the conduct of
the business of the Company and its Subsidiaries taken as a whole and that the loss thereof is not
adverse in any material respect to the Holders.

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     SECTION 1008. WAIVER OF CERTAIN COVENANTS. Except as otherwise specified as
contemplated by Section 301 for Securities of such series, the Company may, with respect to the
Securities of any series, omit in any particular instance to comply with any term, provision or
condition set forth in Section 1010 or 1011 with respect to the Securities of such series or in any
covenant provided pursuant to Section 301(19), 901(2) or 901(7) for the benefit of the Holders of
such series, if before the time for such compliance the Holders of at least a majority in principal
amount of the Outstanding Securities of such series shall, by Act of such Holders, either waive
such compliance in such instance or generally waive compliance with such term, provision or
condition, but no such waiver shall extend to or affect such term, provision or condition except to
the extent so expressly waived, and, until such waiver shall become effective, the obligations of
the Company and the duties of the Trustee in respect of any such term, provision or condition shall
remain in full force and effect.

     SECTION 1009. TAXES. The Company shall, and shall cause each of its Significant Subsidiaries
to, pay prior to delinquency all taxes, assessments and governmental levies, except as contested in
good faith and by appropriate proceedings.

     SECTION 1010. LIMITATION ON LIENS. (a) The Company will not, nor will it permit any
Domestic Subsidiary to, directly or indirectly, issue, assume or Guarantee any Debt if such Debt or
Guarantee is secured by any Lien upon any Principal Property of the Company or of a Domestic
Subsidiary or upon any shares of stock or indebtedness of any Domestic Subsidiary (whether such
principal property, shares of stock or indebtedness is owned at the Issue Date or thereafter
acquired) without in any such case effectively securing, concurrently with the issuance, assumption
or Guaranty of any such Debt, any series of Notes (together with, if the Company shall so
determine, any other indebtedness of or Guaranteed by the Company or such Domestic Subsidiary
ranking equally with such series of Notes and then existing or thereafter created) equally and
ratably with such Debt, so long as such Debt is so secured; provided, however, that the foregoing
restriction shall not apply to Permitted Liens.

          (b) “Permitted Liens” means:

     (1) Liens on any property acquired, constructed or improved by the Company or any Domestic
Subsidiary after the date hereof, which are created or assumed contemporaneously with or within
three years after its acquisition, or completion of construction or improvement (or within six
months thereafter pursuant to a firm commitment for financing arrangements entered into within that
three-year period) to secure or provide for the payment of the purchase price or cost thereof, or
Liens existing on any property at the time of its acquisition;

     (2) Liens existing on any property, shares of stock or indebtedness acquired from a Person
merged with or into the Company or a Domestic Subsidiary after the date hereof;

     (3) with respect to any corporation that becomes a Domestic Subsidiary after the date hereof,
Liens on property of, or shares of stock or indebtedness issued by, any such corporation existing
at the time it becomes a Domestic Subsidiary and not incurred in connection with or in anticipation
of such corporation becoming a Domestic Subsidiary;

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     (4) Liens to secure Debt of a Domestic Subsidiary owed to the Company or Debt of a Domestic
Subsidiaries owed to another Domestic Subsidiary;

     (5) Liens in favor of governmental bodies to secure partial, progress, advance or other
payments pursuant to any contract or statute;

     (6) any Lien existing on the date of the indenture; or

     (7) Liens for the sole purpose of extending, renewing or replacing Debt, in whole or in part,
secured by any Lien referred to above, provided, however, that the principal amount of Debt secured
by that Lien shall not exceed the principal amount of Debt so secured at the time of such
extension, renewal or replacement, and that such extension, renewal or replacement shall be limited
to the property that secured the Lien so extended, renewed or replaced (plus improvements on such
property).

     The limitation on Liens in subsection (a) will not apply to the issuance, assumption or
guarantee by the Company or any Domestic Subsidiary of Debt secured by a Lien which would otherwise
be subject to the foregoing restrictions up to an aggregate amount which, together with all other
Debt of the Company and its Domestic Subsidiaries secured by Liens (not including Liens permitted
under the foregoing exceptions) and the Attributable Debt with respect to Sale and Leaseback
Transactions existing at that time (other than Sale and Leaseback Transactions in which the
property involved would have been permitted to be subject to a Lien under clause (1) above) does
not exceed 10% of Consolidated Net Tangible Assets.

     In the event that the Company shall hereafter secure any series of securities equally and
ratably with any other obligation or indebtedness pursuant to the provisions of this Section, the
Trustee is hereby authorized, but not required, to enter into an indenture or agreement
supplemental hereto and to take such action, if any, as it may deem advisable to enable it to
enforce effectively the rights of the Holders of the Notes so secured, equally and ratably with
such other obligation or indebtedness.

     SECTION 1011. LIMITATION ON SALE AND LEASEBACK TRANSACTIONS. The Company will not, nor will
it permit any Domestic Subsidiary to, enter into any Sale and Leaseback Transaction, unless:

     (a) the Company or such Domestic Subsidiary would be entitled, either pursuant to the
provisions of paragraphs (a) or (b) of Section 10.10, to incur Debt secured by a Lien on
such Principal Property without equally and ratably securing any of the Notes, or

     (b) the Company or such Domestic Subsidiary shall, within 180 days of the effective
date of any such arrangement, apply an amount equal to the proceeds from such Sale and
Leaseback Transaction relating to such Principal Property (x) to the payment or other
retirement of Debt incurred or assumed by the Company that ranks senior to or pari passu
with the Notes (other than, in either case, Debt owed by the Company or any Subsidiary) or
(y) to the purchase of Principal Property (other than the Principal Property involved in
such sale).

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     SECTION 1012. EXEMPTED INDEBTEDNESS. Notwithstanding Section 1010 and Section 1011, the
Company and any one or more Subsidiaries may, without securing the Securities, issue, assume, or
guarantee Secured Debt or enter into any Sale and Leaseback Transaction which would otherwise be
subject to the restrictions of Section 1010 and Section 1011, provided that, after giving effect
thereto, the aggregate amount of such Secured Debt then outstanding (not including Secured Debt
permitted under the exceptions set forth in Section 1010) and the Attributable Debt of Sale and
Leaseback Transactions (other than Sale and Leaseback Transactions in accordance with clause (a) or
(b) of Section 1011) at such time does not exceed 15% of Consolidated Net Assets.

ARTICLE 11.

REDEMPTION OF SECURITIES

     SECTION 1101. APPLICABILITY OF ARTICLE. Securities of any series which are redeemable before
their Stated Maturity shall be redeemable in accordance with their terms and (except as otherwise
specified as contemplated by Section 301 for such Securities) in accordance with this Article.

     SECTION 1102. ELECTION TO REDEEM; NOTICE TO TRUSTEE. The election of the Company to redeem
any Securities shall be evidenced by a Board Resolution or in another manner specified as
contemplated by Section 301 for such Securities. In case of any redemption at the election of the
Company of less than all the Securities of any series (including any such redemption affecting only
a single Security), the Company shall, at least 60 days prior to the Redemption Date fixed by the
Company (unless a shorter notice shall be satisfactory to the Trustee), notify the Trustee in
writing of such Redemption Date, of the principal amount of Securities of such series to be
redeemed and, if applicable, of the tenor of the Securities to be redeemed. In the case of any
redemption of Securities (a) prior to the expiration of any restriction on such redemption provided
in the terms of such Securities or elsewhere in this Indenture, or (b) pursuant to an election of
the Company which is subject to a condition specified in the terms of such Securities or elsewhere
in this Indenture, the Company shall furnish the Trustee with an Officers’ Certificate evidencing
compliance with such restriction or condition.

     SECTION 1103. SELECTION OF TRUSTEE OF SECURITIES TO BE REDEEMED. If less than all the
Securities of any series are to be redeemed (unless all the Securities of such series and of a
specified tenor are to be redeemed or unless such redemption affects only a single Security), the
particular Securities to be redeemed shall be selected not more than 60 days prior to the
Redemption Date by the Trustee, from the Outstanding Securities of such series not previously
called for redemption, by such method as the Trustee shall deem fair and appropriate and which may
provide for the selection for redemption of a portion of the principal amount of any Security of
such series, provided that the unredeemed portion of the principal amount of any Security shall be
in an authorized denomination (which shall not be less than the minimum authorized denomination)
for such Security. If less than all the Securities of such series and of a specified tenor are to
be redeemed (unless such redemption affects only a single Security), the particular Securities to
be redeemed shall be selected not more than 60 days prior to the Redemption Date by the Trustee,
from the Outstanding Securities of such series and specified tenor not previously called for
redemption in accordance with the preceding sentence.

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     The Trustee shall promptly notify the Company in writing of the Securities selected for
redemption as aforesaid and, in case of any Securities selected for partial redemption as
aforesaid, the principal amount thereof to be redeemed.

     The provisions of the two preceding paragraphs shall not apply with respect to any redemption
affecting only a single Security, whether such Security is to be redeemed in whole or in part. In
the case of any such redemption in part, the unredeemed portion of the principal amount of the
Security shall be in an authorized denomination (which shall not be less than the minimum
authorized denomination) for such Security.

     For all purposes of this Indenture, unless the context otherwise requires, all provisions
relating to the redemption of Securities shall relate, in the case of any Securities redeemed or to
be redeemed only in part, to the portion of the principal amount of such Securities which has been
or is to be redeemed.

     SECTION 1104. NOTICE OF REDEMPTION. Notice of redemption shall be given by first-class mail,
postage prepaid, mailed not less than 30 nor more than 60 days prior to the Redemption Date, to
each Holder of Securities to be redeemed, at his address appearing in the Security Register.

     All notices of redemption shall state:

     (1) the Redemption Date,

     (2) the Redemption Price, or if not then ascertainable, the manner of calculation thereof,

     (3) if less than all the Outstanding Securities of any series consisting of more than a single
Security are to be redeemed, the identification (and, in the case of partial redemption of any such
Securities, the principal amounts) of the particular Securities to be redeemed and, if less than
all the Outstanding Securities of any series consisting of a single Security are to be redeemed,
the principal amount of the particular Security to be redeemed,

     (4) that on the Redemption Date the Redemption Price will become due and payable upon each
such Security to be redeemed and, if applicable, that interest thereon will cease to accrue on and
after said date,

     (5) the place or places where each such Security is to be surrendered for payment of the
Redemption Price, and

     (6) that the redemption is for a sinking fund, if such is the case.

     Notice of redemption of Securities to be redeemed at the election of the Company shall be
given by the Company or, at the Company’s request, by the Trustee in the name and at the expense of
the Company.

     SECTION 1105. DEPOSIT OF REDEMPTION PRICE. Prior to any Redemption Date, the Company shall
deposit with the Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 1003) an amount of

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money sufficient to pay the Redemption Price of, and (except if the Redemption Date shall be
an Interest Payment Date) accrued interest on, all the Securities which are to be redeemed on that
date.

     SECTION 1106. SECURITIES PAYABLE ON REDEMPTION DATE. Notice of redemption having been given
as aforesaid, the Securities so to be redeemed shall, on the Redemption Date, become due and
payable at the Redemption Price therein specified, and from and after such date (unless the Company
shall default in the payment of the Redemption Price and accrued interest) such Securities shall
cease to bear interest. Upon surrender of any such Security for redemption in accordance with said
notice, such Security shall be paid by the Company at the Redemption Price, together with accrued
interest to the Redemption Date; provided, however, that, unless otherwise specified as
contemplated by Section 301, installments of interest whose Stated Maturity is on or prior to the
Redemption Date will be payable to the Holders of such Securities, or one or more Predecessor
Securities, registered as such at the close of business on the relevant Record Dates according to
their terms and the provisions of Section 307.

     If any Security called for redemption shall not be so paid upon surrender thereof for
redemption, the principal and any premium shall, until paid, bear interest from the Redemption Date
at the rate prescribed therefor in the Security.

     SECTION 1107. SECURITIES REDEEMED IN PART. Any Security which is to be redeemed only in part
shall be surrendered at a Place of Payment therefor (with, if the Company or the Trustee so
requires, due endorsement by, or a written instrument of transfer in form satisfactory to the
Company and the Trustee duly executed by, the Holder thereof or his attorney duly authorized in
writing), and the Company shall execute, and the Trustee shall authenticate and deliver to the
Holder of such Security without service charge, a new Security or Securities of the same series and
of like tenor, of any authorized denomination as requested by such Holder, in aggregate principal
amount equal to and in exchange for the unredeemed portion of the principal of the Security so
surrendered.

ARTICLE 12.

SINKING FUNDS

     SECTION 1201. APPLICABILITY OF ARTICLE. The provisions of this Article shall be applicable
to any sinking fund for the retirement of Securities of any series except as otherwise specified as
contemplated by Section 301 for such Securities.

     The minimum amount of any sinking fund payment provided for by the terms of any Securities is
herein referred to as a mandatory sinking fund payment, and any payment in excess of such minimum
amount provided for by the terms of such Securities is herein referred to as an optional sinking
fund payment. If provided for by the terms of any Securities, the cash amount of any sinking fund
payment may be subject to reduction as provided in Section 1202. Each sinking fund payment shall
be applied to the redemption of Securities as provided for by the terms of such Securities.

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     SECTION 1202. SATISFACTION OF SINKING FUND PAYMENTS WITH SECURITIES. The Company (1) may
deliver Outstanding Securities of a series (other than any previously called for redemption) and
(2) may apply as a credit Securities of a series which have been redeemed either at the election of
the Company pursuant to the terms of such Securities or through the application of permitted
optional sinking fund payments pursuant to the terms of such Securities, in each case in
satisfaction of all or any part of any sinking fund payment with respect to any Securities of such
series required to be made pursuant to the terms of such Securities as and to the extent provided
for by the terms of such Securities; provided that the Securities to be so credited have not been
previously so credited. The Securities to be so credited shall be received and credited for such
purpose by the Trustee at the Redemption Price, as specified in the Securities so to be redeemed,
for redemption through operation of the sinking fund and the amount of such sinking fund payment
shall be reduced accordingly.

     SECTION 1203. REDEMPTION OF SECURITIES FOR SINKING FUND. Not less than 60 days prior to each
sinking fund payment date for any Securities, the Company will deliver to the Trustee an Officers’
Certificate specifying the amount of the next ensuing sinking fund payment for such Securities
pursuant to the terms of such Securities, the portion thereof, if any, which is to be satisfied by
payment of cash and the portion thereof, if any, which is to be satisfied by delivering and
crediting Securities pursuant to Section 1202 and stating the basis for such credit and that such
Securities have not been previously so credited and will also deliver to the Trustee any Securities
to be so delivered. Not less than 30 days prior to each such sinking fund payment date, the Trustee
shall select the Securities to be redeemed upon such sinking fund payment date in the manner
specified in Section 1103 and cause notice of the redemption thereof to be given in the name of and
at the expense of the Company in the manner provided in Section 1104. Such notice having been duly
given, the redemption of such Securities shall be made upon the terms and in the manner stated in
Sections 1106 and 1107.

ARTICLE 13.

DEFEASANCE AND COVENANT DEFEASANCE

     SECTION 1301. APPLICABILITY OF ARTICLE; COMPANY’S OPTION TO ELECT DEFEASANCE OR COVENANT
DEFEASANCE. Unless otherwise provided pursuant to Section 301, this Article 13 shall be applicable
to the Securities of such series, and the Company may at its option by Board Resolution, at any
time, with respect to the Securities of such series, elect to have either Section 1302 (if
applicable) or Section 1303 (if applicable) be applied to the Outstanding Securities of such series
upon compliance with the conditions set forth below in this Article 13.

     SECTION 1302. DEFEASANCE AND DISCHARGE. Upon the Company’s exercise of its option (if any)
to have this Section applied to any Securities or any series of Securities, as the case may be, the
Company shall be deemed to have been discharged from its obligations with respect to such
Securities as provided in this Section on and after the date the conditions set forth in Section
1304 are satisfied (hereinafter called “Defeasance”). For this purpose, such Defeasance means that
the Company shall be deemed to have paid and discharged the entire indebtedness represented by such
Securities and to have satisfied all its other obligations under such Securities and this Indenture
insofar as such Securities are concerned (and the Trustee, at

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the expense of the Company, shall execute proper instruments acknowledging the same), subject
to the following which shall survive until otherwise terminated or discharged hereunder; (1) the
rights of Holders of such Securities to receive, solely from the trust fund described in Section
1304 and as more fully set forth in such Section, payments in respect of the principal of and any
premium and interest on such Securities when payments are due, (2) the Company’s obligations with
respect to such Securities under Sections 304, 305, 306, 1002 and 1003, (3) the rights, powers,
trusts, duties and immunities of the Trustee hereunder, and (4) this Article. Subject to compliance
with this Article, the Company may exercise its option (if any) to have this Section applied to any
Securities notwithstanding the prior exercise of its option (if any) to have Section 1303 applied
to such Securities.

     SECTION 1303. COVENANT DEFEASANCE. Upon the Company’s exercise of its option (if any) to
have this Section applied to any Securities or any series of Securities, as the case may be, (1)
the Company shall be released from its obligations under Sections 801, 1010 and 1011 and any other
Sections or covenants applicable to such Securities that are determined pursuant to Section 301 to
be subject to this provision, and any covenants provided pursuant to Section 301(19), 901(2) or
901(7) for the benefit of the Holders of such Securities, and (2) the occurrence of any event
specified in Section 501(4) (with respect to Sections 801, 1010 and 1011 and any other Sections or
covenants applicable to such Securities that are determined pursuant to Section 301 to be subject
to this provision, and any such covenants provided pursuant to Sections 301(19), 901(2) or 901(7))
and 501(7) shall be deemed not to be or result in an Event of Default, in each case with respect to
such Securities as provided in this Section on and after the date the conditions set forth in
Section 1304 are satisfied (hereinafter called “Covenant Defeasance”). For this purpose, such
Covenant Defeasance means that, with respect to such Securities, the Company may omit to comply
with and shall have no liability in respect of any term, condition or limitation set forth in any
such specified Section (to the extent so specified in the case of Section 501(3)), whether directly
or indirectly by reason of any reference elsewhere herein to any such Section or Article or by
reason of any reference in any such Section or Article to any other provision herein or in any
other document, but the remainder of this Indenture and such Securities shall be unaffected
thereby.

     SECTION 1304. CONDITIONS TO DEFEASANCE OR COVENANT DEFEASANCE. The following shall be the
conditions to the application of Section 1302 or

     Section 1303 to any Securities or any series of Securities, as the case may be:

     (1) The Company shall irrevocably have deposited or caused to be deposited with the Trustee
(or another trustee which satisfies the requirements contemplated by Section 609 and agrees to
comply with the provisions of this Article applicable to it) as trust funds in trust for the
purpose of making the following payments, specifically pledged as security for, and dedicated
solely to, the benefit of the Holders of such Securities, (A) in the case of Securities of such
series denominated in U.S. dollars, (i) money in an amount, (ii) U.S. Government Obligations that
through the scheduled payment of principal and interest in respect thereof in accordance with their
terms will provide, not later than one day before the due date of any payment, money in an amount,
or (iii) a combination thereof, in each case sufficient, in the opinion of a nationally recognized
firm of independent public accountants expressed in a written certification thereof delivered to
the Trustee, to pay and discharge, and which shall be applied by the Trustee (or any

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such other qualifying trustee) to pay and discharge, the principal of and any premium and
interest on such Securities on the respective Stated Maturities or on the applicable Redemption
Date or Dates, in accordance with the terms of this Indenture and such Securities. As used herein,
“U.S. Government Obligation” means (x) any security that is (i) a direct obligation of the United
States of America for the payment of which the full faith and credit of the United States of
America is pledged or (ii) an obligation of a Person controlled or supervised by and acting as an
agency or instrumentality of the United States of America the payment of which is unconditionally
guaranteed as a full faith and credit obligation by the United States of America, which, in either
case (i) or (ii), is not callable or redeemable at the option of the issuer thereof, and (y) any
depositary receipt issued by a bank (as defined in Section 3(a)(2) of the Securities Act) as
custodian with respect to any U.S. Government Obligation which is specified in Clause (x) above and
held by such bank for the account of the holder of such depositary receipt, or with respect to any
specific payment of principal of or interest on any U.S. Government Obligation which is so
specified and held, provided that (except as required by law) such custodian is not authorized to
make any deduction from the amount payable to the holder of such depositary receipt from any amount
received by the custodian in respect of the U.S. Government Obligation or the specific payment of
principal or interest evidenced by such depositary receipt or (B) in the case of Securities of such
series denominated in a currency other than the U.S. dollar, (i) money in such currency in an
amount, or (ii) Foreign Government Obligations that through the scheduled payment of principal and
interest in respect thereof in accordance with their terms will provide, not later than one day
before the due date of any payment, money in such currency in an amount, or (iii) a combination
thereof, in each case sufficient, in the opinion of a nationally recognized firm of independent
public accountants expressed in a written certification thereof delivered to the Trustee, to pay
and discharge, and which shall be applied by the Trustee (or any such other qualifying trustee) to
pay and discharge, the principal of and any premium and interest on the Securities of such series
on the respective Stated Maturities or on the applicable Redemption Date or Dates, in accordance
with the terms of this Indenture and the Securities of such series. As used herein, “Foreign
Government Obligation” means (x) any security that is (i) a direct obligation of the government
that issued such currency for the payment of which full faith and credit of such government is
pledged or (ii) an obligation of a Person controlled or supervised by and acting as an agency or
instrumentality for such government the payment of which is unconditionally guaranteed as a full
faith and credit obligation by such government, which, in either case (i) or (ii), is not callable
or redeemable at the option of the issuer thereof, and (y) any depositary receipt issued by a bank
(as defined in Section 3(a)(2) of the Securities Act) as custodian with respect to any Foreign
Government Obligation which is specified in clause (x) and held by such bank for the account of the
holder of such depositary receipt, or with respect to any specific payment of principal of or
interest on any such Foreign Government Obligation which is so specified and held, provided that
(except as required by law) such custodian is not authorized to make any deduction from the amount
payable to the holder of such depositary receipt from any amount received by the custodian in
respect of the Foreign Government Obligation or the specific payment of principal or interest
evidenced by such depositary receipt.

     (2) In the event of an election to have Section 1302 apply to any Securities or any series of
Securities, as the case may be, the Company shall have delivered to the Trustee an Opinion of
Counsel stating that (A) the Company has received from, or there has been published by, the
Internal Revenue Service a ruling or (B) since the date of this instrument, there has been a change
in the applicable Federal income tax law, in either case (A) or (B) to the effect that, and

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based thereon such opinion shall confirm that, the Holders of such Securities will not
recognize gain or loss for Federal income tax purposes as a result of the deposit, Defeasance and
discharge to be effected with respect to such Securities and will be subject to Federal income tax
on the same amount, in the same manner and at the same times as would be the case if such deposit,
Defeasance and discharge were not to occur.

     (3) In the event of an election to have Section 1303 apply to any Securities or any series of
Securities, as the case may be, the Company shall have delivered to the Trustee an Opinion of
Counsel to the effect that the Holders of such Securities will not recognize gain or loss for
Federal income tax purposes as a result of the deposit and Covenant Defeasance to be effected with
respect to such Securities and will be subject to Federal income tax on the same amount, in the
same manner and at the same times as would be the case if such deposit and Covenant Defeasance were
not to occur.

     (4) The Company shall have delivered to the Trustee an Officer’s Certificate to the effect
that neither such Securities nor any other Securities of the same series, if then listed on any
securities exchange, will be delisted as a result of such deposit.

     (5) No event which is, or after notice or lapse of time or both would become, an Event of
Default with respect to such Securities shall have occurred and be continuing at the time of such
deposit or, with regard to any such event specified in Sections 501(5) and (6) at any time on or
prior to the 90th day after the date of such deposit (it being understood that this condition shall
not be deemed satisfied until after such 90th day).

     (6) Such Defeasance or Covenant Defeasance shall not cause the Trustee to have a conflicting
interest within the meaning of the Trust Indenture Act (assuming all Securities are in default
within the meaning of such Act).

     (7) Such Defeasance or Covenant Defeasance shall not result in a breach or violation of, or
constitute a default under, any other agreement or instrument to which the Company is a party or by
which it is bound.

     (8) Such Defeasance or Covenant Defeasance shall not result in the trust arising from such
deposit constituting an investment company within the meaning of the Investment Company Act unless
such trust shall be registered under such Act or exempt from registration thereunder.

     (9) If the Securities are to be redeemed prior to the Stated Maturity (other than from
mandatory sinking fund payments or analogous payments), notice of such redemption shall have been
duly given pursuant to this Indenture or provision therefor satisfactory to the Trustee shall have
been made.

     (10) The Company shall have delivered to the Trustee an Officers’ Certificate and an Opinion
of Counsel, each stating that all conditions precedent with respect to such Defeasance or Covenant
Defeasance have been complied with.

     SECTION 1305. DEPOSITED MONEY AND U.S. GOVERNMENT OBLIGATIONS TO BE HELD IN TRUST;
MISCELLANEOUS PROVISIONS. Subject to the provisions of the

59

 

last paragraph of Section 1003, all money and U.S. Government Obligations or Foreign
Government Obligations (including the proceeds thereof) deposited with the Trustee or other
qualifying trustee (solely for purposes of this Section and Section 1306, the Trustee and any such
other trustee are referred to collectively as the Trustee) pursuant to Section 1304 in respect of
any Securities shall be held in trust and applied by the Trustee, in accordance with the provisions
of such Securities and this Indenture, to the payment, either directly or through any such Paying
Agent (including the Company acting as its own Paying Agent) as the Trustee may determine, to the
Holders of such Securities, of all sums due and to become due thereon in respect of principal and
any premium and interest, but money so held in trust need not be segregated from other funds except
to the extent required by law.

     The Company shall pay and indemnify the Trustee against any tax, fee or other charge imposed
on or assessed against the U.S. Government Obligations or Foreign Government Obligations deposited
pursuant to Section 1304 or the principal and interest received in respect thereof other than any
such tax, fee or other charge which by law is for the account of the Holders of Outstanding
Securities.

     Anything in this Article to the contrary notwithstanding, the Trustee shall deliver or pay to
the Company from time to time upon Company Request any money or U.S. Government Obligations or
Foreign Government Obligations held by it as provided in Section 1304 with respect to any
Securities that, in the opinion of a nationally recognized firm of independent public accountants
expressed in a written certification thereof delivered to the Trustee, are in excess of an amount
thereof which would then be required to be deposited to effect the Defeasance or Covenant
Defeasance, as the case may be, with respect to such Securities.

     SECTION 1306. REINSTATEMENT. If the Trustee or the Paying Agent is unable to apply any money
in accordance with this Article with respect to any Securities by reason of any order or judgment
of any court or governmental authority enjoining, restraining or otherwise prohibiting such
application, then the obligations under this Indenture and such Securities from which the Company
has been discharged or released pursuant to Section 1302 or 1303 shall be revived and reinstated as
though no deposit had occurred pursuant to this Article with respect to such Securities, until such
time as the Trustee or Paying Agent is permitted to apply all money held in trust pursuant to
Section 1305 with respect to such Securities in accordance with this Article; provided, however,
that if the Company makes any payment of principal of or any premium or interest on any such
Security following such reinstatement of its obligations, the Company shall be subrogated to the
rights (if any) of the Holders of such Securities to receive such payment from the money so held in
trust.

     SECTION 1307. QUALIFYING TRUSTEE. Any trustee appointed pursuant to Section 1304 hereof for
the purpose of holding trust funds deposited pursuant to that Section shall be appointed under an
agreement in form acceptable to the Trustee and shall provide to the Trustee a certificate of such
trustee, upon which certificate the Trustee shall be entitled to conclusively rely, that all
conditions precedent provided for herein to the related Defeasance or Covenant Defeasance have been
complied with. In no event shall the Trustee be liable for any acts or omissions of said trustee.

60

 

ARTICLE 14.

GUARANTEES

     SECTION 1401. APPLICABILITY OF ARTICLE. The provisions of this Article shall be applicable
to each of the Guarantors for the Guarantee of Securities of a series.

     SECTION 1402. GUARANTEE. Each Guarantor of a particular series of Securities hereby
unconditionally guarantees (each such guarantee to be referred to herein as a “Guarantee”), jointly
and severally with each other Guarantor of the Securities of that series, if any, to each Holder of
such Securities authenticated and delivered by the Trustee and to the Trustee and its successors
and assigns, irrespective of the validity and enforceability of this Indenture, such Securities or
the obligations of the Company hereunder or thereunder, (i) the due and punctual payment of the
principal of and any premium or interest on such Securities, whether at maturity or on an interest
payment date, by acceleration, pursuant to an offer to purchase such Securities or otherwise, and
interest on the overdue principal of and interest, if any, on such Securities, if lawful, and all
other obligations of the Company to the Holders of such Securities or the Trustee hereunder or
thereunder shall be promptly paid in full, all in accordance with the terms hereof and thereof
including all amounts payable to the Trustee under Section 607 hereof, and (ii) in case of any
extension of time of payment or renewal of any such Securities or any of such other obligations,
the same shall be promptly paid in full when due or to be performed in accordance with the terms of
the extension or renewal, whether at stated maturity, by acceleration or otherwise.

     If the Company fails to make any payment when due of any amount so guaranteed for whatever
reason, the Guarantor of the Securities of that series shall be obligated, jointly and severally
with each other Guarantor, if any, to pay the same immediately. Each Guarantor hereby agrees that
its obligations hereunder shall be continuing, absolute and unconditional, irrespective of, and
shall be unaffected by, the validity, regularity or enforceability of the Securities, this
Indenture, the absence of any action to enforce the same, any waiver or consent by any Holder of
the Securities or the Trustee with respect to any provisions hereof or thereof, the recovery of any
judgment against the Company, any action to enforce the same or any other circumstance which might
otherwise constitute a legal or equitable discharge or defense of such Guarantor. Each Guarantor
hereby waives diligence, presentment, demand of payment, demand of performance, filing of claims
with a court in the event of insolvency or bankruptcy of the Company, any right to require a
proceeding first against the Company, the benefit of discussion, protest, notice and all demand
whatsoever and covenants that its Guarantee shall not be discharged except by complete performance
of the obligations contained in the Securities guaranteed by such Guarantee, in this Indenture and
in this Article 14. If any Holder of Securities of a series guaranteed hereby or the Trustee is
required by any court or otherwise to return to the Company or any Guarantor of such Securities, or
any custodian, trustee, liquidator or other similar official acting in relation to the Company or
any Guarantor, any amount paid by the Company or any Guarantor of such Securities to the Trustee or
such Holder, this Article 14, to the extent theretofore discharged with respect to any Guarantee of
such Securities, shall be reinstated in full force and effect. Each Guarantor agrees that it shall
not be entitled to any right of subrogation in relation to the Holders of Securities of a series
guaranteed hereby by such Guarantor in respect of any obligations guaranteed hereby by such
Guarantee until payment in

61

 

full of all such obligations. Each Guarantor further agrees that, as between such Guarantor,
on the one hand, and the Holders of Securities of a series guaranteed hereby by such Guarantor and
the Trustee on the other hand, (i) the maturity of the obligations guaranteed hereby may be
accelerated as provided in Article 5 hereof for the purposes of such Guarantee, notwithstanding any
stay, injunction or other prohibition preventing such acceleration in respect of the obligations
guaranteed hereby and (ii) in the event of any acceleration of such obligations as provided in
Article 5 hereof such obligations (whether or not due and payable) shall forthwith become due and
payable by such Guarantor, jointly and severally with any other Guarantor of such Securities, for
the purpose of this Article 14. In addition, without limiting the foregoing, upon the effectiveness
of an acceleration under Article 5, the Trustee may make a demand for payment on the Securities
under any Guarantee provided hereunder and not discharged.

     With respect to each Guarantee by a Guarantor, such Guarantor shall be subrogated to all
rights of the Holder of any Securities guaranteed hereby by such Guarantee against the Company in
respect of any amounts paid to such Holder by such Guarantor pursuant to the provisions of such
Guarantee; provided that the Guarantor shall not be entitled to enforce, or to receive any payments
arising out of or based upon, such right of subrogation until the principal of and interest on all
such Securities shall have been paid in full.

     The Guarantee set forth in this Section 1402 shall not be valid or become obligatory for any
purpose with respect to a Security until the certificate of authentication on such Security shall
have been signed by the Trustee or any duly appointed agent.

     The Guarantees provided in this Section 1402 shall not be valid or become obligatory for any
purpose with respect to a Security until the certificate of authentication on such Security shall
have been signed by the Trustee or any duly appointed agent.

     SECTION 1403. OBLIGATIONS OF THE GUARANTOR UNCONDITIONAL. Nothing contained in this Article
14 or elsewhere in this Indenture or in any Security is intended to or shall impair, as between a
Guarantor and the Holders of the Securities guaranteed by such Guarantor’s Guarantee, the
obligations of such Guarantor, which are absolute and unconditional, to pay to such Holders the
principal of and interest on, as and when the same shall become due and payable in accordance with
the provisions of this Guarantee or is intended to or shall affect the relative rights of such
Holders and creditors of such Guarantor, nor shall anything herein or therein prevent the Trustee
or such Holder from exercising all remedies otherwise permitted by applicable law upon Default
under this Indenture in respect of cash, property or securities of such Guarantor received upon the
exercise of any such remedy.

     Upon any distribution of assets of a Guarantor referred to in this Article 14, the Trustee,
subject to the provisions of Sections 601 and 602, and the Holders of the Securities guaranteed
hereby by such Guarantor shall be entitled to rely upon any order or decree made by any court of
competent jurisdiction in which such dissolution, winding up, liquidation or reorganization
proceedings are pending, or a certificate of the liquidating trustee or agent or other person
making any distribution to the Trustee or to such Holders, for the purpose of ascertaining the
persons entitled to participate in such distribution, the holders of other indebtedness of such
Guarantor, the amount thereof or payable thereon, the amount or amounts paid or distributed thereon
and all other facts pertinent thereto or to this Article 14.

62

 

     SECTION 1404. ARTICLE 14 NOT TO PREVENT EVENTS OF DEFAULT. The failure to make a payment on
account of principal or interest on the Securities of any series by reason of any provision in this
Article 14 shall not be construed as preventing the occurrence of an Event of Default under Section
501.

     SECTION 1405. EXECUTION AND DELIVERY OF GUARANTEE. To evidence a Guarantee set forth in this
Article 14, the Guarantor hereby agrees that the Guarantee Notation, substantially in the form of
Exhibit A hereto, shall be endorsed on each Security authenticated and delivered by the Trustee
that is guaranteed by such Guarantee and that this Indenture shall be executed on behalf of such
Guarantor by its Chairman of the Board, its Chief Executive Officer, its President or one of its
Vice Presidents under a facsimile of its seal reproduced thereon.

     Each Guarantor hereby agrees that its Guarantee shall remain in full force and effect
notwithstanding any failure to endorse the Guarantee Notation on each such Security.

     If an officer whose signature is on this Indenture or on the Securities guaranteed hereby no
longer holds that office at the time the Trustee authenticates the Security on which a notation of
the Guarantee is endorsed, such Guarantee shall be valid nevertheless.

     The delivery of any Security by the Trustee, after the authentication thereof hereunder, shall
constitute due delivery of each Guarantee thereof.

     This instrument may be executed in any number of counterparts, each of which so executed shall
be deemed to be an original, but all such counterparts shall together constitute but one and the
same instrument.

     IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed, and
their respective corporate seals to be hereunto affixed and attested, all as of the day and year
first above written.

	 	 	 	 	 
	 	ARCH COAL, INC.

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Senior Vice President and Chief Financial
Officer 	 
	 

ATTEST:

	 	 	 	 	 
	 	 	 
	 	        	/s/ Jon S. Ploetz
 	 
	 	 	Name:  	Jon S. Ploetz 	 
	 	 	Title:  	Assistant General Counsel and Assistant
Secretary 	 

63

 

	 	 	 	 	 

	 	 	 	 	 
	 	U.S. BANK NATIONAL ASSOCIATION,
as Trustee

 	 
	 	By:  	/s/ Peter C. Qui Belle
 	 
	 	 	Name:  	Peter C. Qui Belle 	 
	 	 	Title:  	Assistant Vice President 	 

ATTEST:

	 	 	 	 	 
	 	                                              /s/ Brian J. Kabbes
 	 
	 	Name:  	Brian J. Kabbes 	 
	 	Title:  	Vice President 	 

64

 

	 	 	 	 	 

EXHIBIT A

[FORM OF NOTATION OF SECURITY

RELATING TO GUARANTEE]

GUARANTEE

     [Name of Guarantor] (hereinafter referred to as the “Guarantor,” which term includes any
successor person under the Indenture (the “Indenture”) referred to in the Security upon which this
notation is endorsed) (the “Endorsed Security”), has unconditionally guaranteed (i) the due and
punctual payment of the principal of, premium, if any, and interest on the Endorsed Security and
all other Securities of the same series as the Endorsed Security (the “Guaranteed Securities”),
whether at maturity, by acceleration or otherwise, the due and punctual payment of interest on the
overdue principal of, premium, if any, and interest, if any, on the Guaranteed Securities, to the
extent lawful, and the due and punctual performance of all other obligations of the Company to the
Holders of Guaranteed Securities or the Trustee all in accordance with the terms set forth in
Article 14 of the Indenture and (ii) in case of any extension of time of payment or renewal of any
Guaranteed Securities or any of such other obligations, that the same will be promptly paid in full
when due or performed in accordance with the terms of the extension or renewal, whether at stated
maturity, by acceleration or otherwise. Capitalized terms not otherwise defined herein shall have
the meanings ascribed thereto in the Indenture.

     The obligations of the Guarantor to the Holders of Guaranteed Securities and to the Trustee
pursuant to the Guarantee evidenced hereby and the Indenture are expressly set forth in Article 14
of the Indenture and reference is hereby made to such Indenture for the terms of such Guarantee.

     No stockholder, officer, director or incorporator, as such, past, present or future, of the
Guarantor shall have any personal liability under the Guarantee evidenced hereby by reason of his
or its status as such stockholder, officer, director or incorporator.

     The Guarantee evidenced hereby shall not be valid or obligatory for any purpose until the
certificate of authentication of the Guaranteed Securities shall have been executed by the Trustee
under the Indenture by the manual signature of one of its authorized officers.

	 	 	 	 	 
	 	Guarantor

[SEAL]

[NAME OF GUARANTOR]

 	 
	 	By:  	 	 
	 
	 	 	 
	 	By:  	
 	 
	 	 	 	 
	 	 	 	 
	 

65exv4w2

Exhibit 4.2

EXECUTION COPY

 

Arch Coal, Inc.

AS ISSUER

The Guarantors Named Herein

AS GUARANTORS

AND

U.S. Bank National Association,

AS TRUSTEE

 

First Supplemental Indenture

Dated as of August 9, 2010

 

$500,000,000

7 1/4% Senior Notes due 2020

 

 

 

CROSS-REFERENCE TABLE

	 	 	 	 	 	 	 
	TIA Sections	 	Indenture Sections
	310

	 	(a)(1)
	 	 	 	 7.10; 12.01
	 

	 	(a)(2)
	 	 	 	 12.01
	 

	 	(a)(3)
	 	 	 	 7.12; 12.01
	 

	 	(a)(4)
	 	 	 	 12.01
	 

	 	(a)(5)
	 	 	 	 7.10; 12.01
	 

	 	(b)
	 	 	 	 7.03; 7.10; 12.01
	 

	 	(c)
	 	 	 	 12.01
	311

	 	(a)
	 	 	 	 7.03; 7.11; 12.01
	 

	 	(b)
	 	 	 	 7.03; 7.11; 12.01
	 

	 	(c)
	 	 	 	 7.03; 7.11; 12.01
	312

	 	(a)
	 	 	 	 2.05(a); 12.01
	 

	 	(b)
	 	 	 	 12.01; 12.03
	 

	 	(c)
	 	 	 	 12.01; 12.03
	313

	 	(a)
	 	 	 	 7.06; 12.01
	 

	 	(b)(1)
	 	 	 	 7.06; 12.01
	 

	 	(b)(2)
	 	 	 	 7.06; 7.07; 12.01
	 

	 	(c)
	 	 	 	 7.05; 7.06; 12.01; 12.02(b)
	 

	 	(d)
	 	 	 	 7.06; 12.01
	314

	 	(a)(1)-(3)
	 	 	 	 4.17; 12.01
	 

	 	(a)(4)
	 	 	 	 12.01
	 

	 	(b)
	 	 	 	 12.01
	 

	 	(c)(1)
	 	 	 	 12.01; 12.04(a)
	 

	 	(c)(2)
	 	 	 	 12.01; 12.04(b)
	 

	 	(d)
	 	 	 	 12.01
	 

	 	(e)
	 	 	 	 12.01; 12.05
	 

	 	(f)
	 	 	 	 12.01
	315

	 	(a)
	 	 	 	 7.01(b); 12.01
	 

	 	(b)
	 	 	 	 7.05; 12.01
	 

	 	(c)
	 	 	 	 7.01(a); 12.01
	 

	 	(d)
	 	 	 	 7.01(c); 12.01
	 

	 	(e)
	 	 	 	 6.11; 12.01
	316

	 	(a) (last sentence)
	 	 	 	 2.09; 12.01
	 

	 	(a)(1)(A)
	 	 	 	 6.05; 12.01
	 

	 	(a)(1)(B)
	 	 	 	 6.04; 12.01
	 

	 	(a)(2)
	 	 	 	 12.01
	 

	 	(b)
	 	 	 	 6.07; 12.01
	 

	 	(c)
	 	 	 	 6.15; 12.01
	317

	 	(a)(1)
	 	 	 	 6.08; 12.01
	 

	 	(a)(2)
	 	 	 	 6.09;12.01
	 

	 	(b)
	 	 	 	 2.04; 12.01
	318

	 	(a)
	 	 	 	 12.01
	 

	 	(b)
	 	 	 	 12.01
	 

	 	(c)
	 	 	 	 12.01

 

			
	Note:	 	 The Cross-Reference Table shall not for any purpose be deemed to be a part of the
Indenture.

i

 

TABLE OF CONTENTS

	 	 	 	 	 

	Article One
	DEFINITIONS AND INCORPORATION BY REFERENCE
	 
	 	 	 	 
	SECTION 1.01. Definitions
	 	 	2	 
	SECTION 1.02. Other Definitions
	 	 	30	 
	SECTION 1.03. Incorporation by Reference of Trust Indenture Act
	 	 	31	 
	SECTION 1.04. Rules of Construction
	 	 	31	 
	SECTION 1.05. Relationship with Base Indenture
	 	 	32	 
	 
	 	 	 	 
	Article Two
	
THE NOTES
	 
	 	 	 	 
	SECTION 2.01. The Notes
	 	 	32	 
	SECTION 2.02. Execution and Authentication
	 	 	34	 
	SECTION 2.03. Registrar, Transfer Agent and Paying Agent
	 	 	34	 
	SECTION 2.04. Paying Agent to Hold Money in Trust
	 	 	35	 
	SECTION 2.05. Holder Lists
	 	 	35	 
	SECTION 2.06. Transfer and Exchange
	 	 	35	 
	SECTION 2.07. Replacement Notes
	 	 	36	 
	SECTION 2.08. Outstanding Notes
	 	 	37	 
	SECTION 2.09. Notes Held by Arch Coal
	 	 	37	 
	SECTION 2.10. Certificated Notes
	 	 	37	 
	SECTION 2.11. Cancellation
	 	 	38	 
	SECTION 2.12. Defaulted Interest
	 	 	38	 
	SECTION 2.13. Computation of Interest
	 	 	39	 
	SECTION 2.14. CUSIP, ISIN and Common Code Numbers
	 	 	39	 
	SECTION 2.15. Issuance of Additional Notes
	 	 	40	 
	 
	 	 	 	 
	Article Three
	REDEMPTION; OFFERS TO PURCHASE
	 
	 	 	 	 
	SECTION 3.01. Optional Redemption
	 	 	40	 
	SECTION 3.02. Notices to Trustee
	 	 	41	 
	SECTION 3.03. Selection of Notes to be Redeemed
	 	 	41	 
	SECTION 3.04. Notice of Redemption
	 	 	41	 
	SECTION 3.05. Effect of Notice of Redemption
	 	 	42	 
	SECTION 3.06. Deposit of Redemption Price
	 	 	43	 
	SECTION 3.07. Payment of Notes Called for Redemption
	 	 	43	 
	SECTION 3.08. Notes Redeemed in Part
	 	 	43	 
	 
	 	 	 	 
	Article Four
	COVENANTS
	 
	 	 	 	 
	SECTION 4.01. Payment of Notes
	 	 	43	 
	SECTION 4.02. Corporate Existence
	 	 	44	 
	SECTION 4.03. Maintenance of Properties
	 	 	44	 
	SECTION 4.04. Insurance
	 	 	44	 
	SECTION 4.05. Statement as to Compliance
	 	 	44	 

ii

 

	 	 	 	 	 

	SECTION 4.06. Limitation on Debt
	 	 	45	 
	SECTION 4.07. Limitation on Liens
	 	 	47	 
	SECTION 4.08. Limitation on Restricted Payments
	 	 	48	 
	SECTION 4.09. Limitation on Asset Sales
	 	 	51	 
	SECTION 4.10. Limitation on Transactions with Affiliates
	 	 	53	 
	SECTION 4.11. Change of Control
	 	 	55	 
	SECTION 4.12. Limitation on Sale and Leaseback Transactions
	 	 	56	 
	SECTION 4.13. Guarantees by Restricted Subsidiaries
	 	 	56	 
	SECTION 4.14. Limitation on Restrictions on Distributions from Restricted Subsidiaries
	 	 	57	 
	SECTION 4.15. Designation of Restricted and Unrestricted Subsidiaries
	 	 	59	 
	SECTION 4.16. Payment of Taxes and Other Claims
	 	 	60	 
	SECTION 4.17. Reports to Holders
	 	 	60	 
	SECTION 4.18. Legal Existence
	 	 	61	 
	SECTION 4.19. Waiver of Stay, Extension or Usury Laws
	 	 	61	 
	SECTION 4.20. Further Instruments and Acts
	 	 	61	 
	SECTION 4.21. Covenant Termination
	 	 	61	 
	 
	 	 	 	 
	Article Five
	CONSOLIDATION, MERGER OR SALE OF ASSETS
	 
	 	 	 	 
	SECTION 5.01. Consolidation, Merger or Sale of Assets
	 	 	61	 
	SECTION 5.02. Successor Substituted
	 	 	64	 
	 
	 	 	 	 
	Article Six
	DEFAULTS AND REMEDIES
	 
	 	 	 	 
	SECTION 6.01. Events of Default
	 	 	64	 
	SECTION 6.02. Acceleration
	 	 	66	 
	SECTION 6.03. Other Remedies
	 	 	68	 
	SECTION 6.04. Waiver of Past Defaults
	 	 	68	 
	SECTION 6.05. Control by Majority
	 	 	68	 
	SECTION 6.06. Limitation on Suits
	 	 	69	 
	SECTION 6.07. Unconditional Right of Holders to Receive Payment
	 	 	69	 
	SECTION 6.08. Collection Suit by Trustee
	 	 	70	 
	SECTION 6.09. Trustee May File Proofs of Claim
	 	 	70	 
	SECTION 6.10. Application of Money Collected
	 	 	71	 
	SECTION 6.11. Undertaking for Costs
	 	 	71	 
	SECTION 6.12. Restoration of Rights and Remedies
	 	 	71	 
	SECTION 6.13. Rights and Remedies Cumulative
	 	 	71	 
	SECTION 6.14. Delay or Omission Not Waiver
	 	 	72	 
	SECTION 6.15. Record Date
	 	 	72	 
	SECTION 6.16. Waiver of Stay or Extension Laws
	 	 	72	 
	 
	 	 	 	 
	Article Seven
	TRUSTEE
	 
	 	 	 	 
	SECTION 7.01. Duties of Trustee
	 	 	72	 
	SECTION 7.02. Certain Rights of Trustee
	 	 	73	 
	SECTION 7.03. Individual Rights of Trustee
	 	 	75	 

iii

 

	 	 	 	 	 

	SECTION 7.04. Trustee’s Disclaimer
	 	 	75	 
	SECTION 7.05. Notice of Defaults
	 	 	75	 
	SECTION 7.06. Reports by Trustee to Holders
	 	 	75	 
	SECTION 7.07. Compensation and Indemnity
	 	 	76	 
	SECTION 7.08. Replacement of Trustee
	 	 	77	 
	SECTION 7.09. Successor Trustee by Merger
	 	 	78	 
	SECTION 7.10. Eligibility: Disqualification
	 	 	78	 
	SECTION 7.11. Preferential Collection of Claims Against Arch Coal
	 	 	79	 
	SECTION 7.12. Appointment of Co-Trustee
	 	 	79	 
	 
	 	 	 	 
	Article Eight
	DEFEASANCE; SATISFACTION AND DISCHARGE
	 
	 	 	 	 
	SECTION 8.01. Arch Coal’s Option to Effect Defeasance or Covenant Defeasance
	 	 	80	 
	SECTION 8.02. Defeasance and Discharge
	 	 	80	 
	SECTION 8.03. Covenant Defeasance
	 	 	80	 
	SECTION 8.04. Conditions to Defeasance
	 	 	81	 
	SECTION 8.05. Satisfaction and Discharge of Indenture
	 	 	82	 
	SECTION 8.06. Survival of Certain Obligations
	 	 	83	 
	SECTION 8.07. Acknowledgment of Discharge by Trustee
	 	 	83	 
	SECTION 8.08. Application of Trust Money
	 	 	83	 
	SECTION 8.09. Repayment to Arch Coal
	 	 	83	 
	SECTION 8.10. Indemnity for Government Securities
	 	 	84	 
	SECTION 8.11. Reinstatement
	 	 	84	 
	 
	 	 	 	 
	Article Nine
	AMENDMENTS AND WAIVERS
	 
	 	 	 	 
	SECTION 9.01. Without Consent of Holders
	 	 	84	 
	SECTION 9.02. With Consent of Holders
	 	 	85	 
	SECTION 9.03. Compliance with Trust Indenture Act
	 	 	86	 
	SECTION 9.04. Effect of Supplemental Indentures
	 	 	86	 
	SECTION 9.05. Notation on or Exchange of Notes
	 	 	86	 
	SECTION 9.06. Payment for Consent
	 	 	87	 
	SECTION 9.07. Notice of Amendment or Waiver
	 	 	87	 
	SECTION 9.08. Trustee to Sign Supplemental Indentures
	 	 	87	 
	 
	 	 	 	 
	Article Ten
	GUARANTEE
	 
	 	 	 	 
	SECTION 10.01. Note Guarantee
	 	 	87	 
	SECTION 10.02. Subrogation
	 	 	88	 
	SECTION 10.03. Release of Guarantors
	 	 	88	 
	SECTION 10.04. Additional Guarantors
	 	 	89	 
	SECTION 10.05. Limitation of Guarantee
	 	 	89	 
	SECTION 10.06. Notation Not Required
	 	 	89	 
	SECTION 10.07. Successors and Assigns
	 	 	89	 
	SECTION 10.08. No Waiver
	 	 	90	 
	SECTION 10.09. Modification
	 	 	90	 

iv

 

	 	 	 	 	 

	Article Eleven
	HOLDERS’ MEETINGS
	 
	 	 	 	 
	SECTION 11.01. Purposes of Meetings
	 	 	90	 
	SECTION 11.02. Place of Meetings
	 	 	90	 
	SECTION 11.03. Call and Notice of Meetings
	 	 	90	 
	SECTION 11.04. Voting at Meetings
	 	 	91	 
	SECTION 11.05. Voting Rights, Conduct and Adjournment
	 	 	91	 
	SECTION 11.06. Revocation of Consent by Holders at Meetings
	 	 	92	 
	 
	 	 	 	 
	Article Twelve
	MISCELLANEOUS
	 
	 	 	 	 
	SECTION 12.01. Trust Indenture Act Controls
	 	 	92	 
	SECTION 12.02. Notices
	 	 	92	 
	SECTION 12.03. Communication by Holders with Other Holders
	 	 	93	 
	SECTION 12.04. Certificate and Opinion as to Conditions Precedent
	 	 	93	 
	SECTION 12.05. Statements Required in Certificate or Opinion
	 	 	94	 
	SECTION 12.06. Rules by Trustee, Paying Agent and Registrar
	 	 	94	 
	SECTION 12.07. Legal Holidays
	 	 	94	 
	SECTION 12.08. Governing Law
	 	 	94	 
	SECTION 12.09. No Recourse Against Others
	 	 	95	 
	SECTION 12.10. Successors
	 	 	95	 
	SECTION 12.11. Multiple Originals
	 	 	95	 
	SECTION 12.12. Table of Contents, Cross-Reference Sheet and Headings
	 	 	95	 
	SECTION 12.13. Severability
	 	 	95	 

Exhibits

	 	 	 	 	 

	Exhibit A

	 	—
	 	Form of Note

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     FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”) dated as of August 9, 2010
among Arch Coal, Inc., a Delaware corporation (“Arch Coal” or the “Company”) and
Allegheny Land Company, a Delaware corporation, Arch Coal Sales Company, Inc., a Delaware
corporation, Arch Coal Terminal, Inc., a Delaware corporation, Arch Development, LLC, a Delaware
limited liability company, Arch Energy Resources, LLC, a limited liability company organized under
the laws of Delaware, Arch Reclamation Services, Inc., a Delaware corporation, Ark Land Company, a
Delaware corporation, Ark Land KH, Inc., a Delaware corporation, Ark Land LT, Inc., a Delaware
corporation, Ark Land WR, Inc., a Delaware corporation, Ashland Terminal, Inc., a Delaware
corporation, Catenary Coal Holdings, Inc., a Delaware corporation, Coal-Mac, Inc., a Kentucky
corporation, Cumberland River Coal Company, a Delaware corporation, Lone Mountain Processing, Inc.,
a Delaware corporation, Mingo Logan Coal Company, a Delaware corporation, Mountain Gem Land, Inc.,
a West Virginia corporation, Mountain Mining, Inc., a Delaware corporation, Mountaineer Land
Company, a Delaware corporation, Otter Creek Coal, LLC, a Delaware limited liability company,
Prairie Holdings, Inc., a Delaware corporation, Western Energy Resources, Inc., a Delaware
corporation (collectively the “Guarantors”) and U.S. Bank National Association, a New York
banking corporation (the “Trustee”).

RECITALS OF ARCH COAL AND THE GUARANTORS

     WHEREAS, the Company and the Trustee executed and delivered an Indenture, dated as of August
9, 2010 (the “Base Indenture,” and together with this Supplemental Indenture, the
“Indenture”), to provide for the issuance by the Company from time to time of Securities to
be issued in one or mores series as provided in the Indenture;

     WHEREAS, Section 901 of the Base Indenture provides, among other things, that the Company and
the Trustee may enter into indentures supplemental to the Base Indenture, without the consent of
any Holders of Securities, to establish the form of any Security, as permitted by Section 201 of
the Base Indenture, and to provide for the issuance of the Notes (as defined below), as permitted
by Section 301 of the Base Indenture, and to set forth the terms thereof;

     WHEREAS, the Company desires to execute this Supplemental Indenture pursuant to Section 201 of
the Base Indenture to establish the form, and pursuant to Section 301 of the Base Indenture to
provide for the issuance, of a series of its senior notes designated as its (i) 7 1/4% Senior Notes
due 2020 issued on the date hereof (the “Original Notes”), in an initial aggregate
principal amount of $500,000,000, and (ii) any additional notes of such series (“Additional
Notes” and together with the Original Notes, the “Notes”) that may be issued on any
other Issue Date (as defined herein). The Notes are a series of Securities as referred to in
Section 301 of the Base Indenture;

     WHEREAS, the Company has delivered to the Trustee an Opinion of Counsel and an Officers’
Certificate pursuant to Sections 102 and 903 of the Base Indenture to the effect that the execution
and delivery of the Supplemental Indenture is authorized or permitted under the Base Indenture and
that all conditions precedent provided for in the Base Indenture to the execution and delivery of
this Supplemental Indenture to be complied with by the Company have been complied with;

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     WHEREAS, the Company has requested that the Trustee execute and deliver this Supplemental
Indenture and each Guarantor has duly authorized the execution and delivery of this Supplemental
Indenture to provide for the issuance of its Guarantee;

     WHEREAS, all necessary acts and things have been done to make (i) the Notes, when duly issued
and executed by Arch Coal and authenticated and delivered hereunder, the legal, valid and binding
obligations of Arch Coal, (ii) the Guarantees, when executed by each Guarantor and delivered
hereunder, the legal, valid and binding obligations of each Guarantor and (iii) this Supplemental
Indenture a legal, valid and binding agreement of each of Arch Coal and the Guarantor in accordance
with the terms of this Supplemental Indenture;

     WHEREAS, each of Arch Coal and the Guarantors has received good and valuable consideration for
the execution and delivery of this Supplemental Indenture and the Guarantees, as the case may be,
and each of Arch Coal Each Guarantor will derive substantial direct and indirect benefits from the
issuance of the Notes.

     NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH:

     For and in consideration of the premises and the purchase of the Notes by the Holders thereof,
it is mutually covenanted and agreed, for the equal and proportionate benefit of all Holders, as
follows:

ARTICLE ONE

DEFINITIONS AND INCORPORATION BY REFERENCE

          SECTION 1.01. Definitions. For the benefit of the Holders of the Notes, Section 101
of the Base Indenture shall be amended by adding the following definitions:

      “Additional Assets” means:

     (a) any Property (other than cash, Cash Equivalent and securities) to be owned by Arch
Coal or any of its Restricted Subsidiaries and used in a Permitted Business; or

     (b) Capital Stock of a Person that becomes a Restricted Subsidiary as a result of the
acquisition of such Capital Stock by Arch Coal or another Restricted Subsidiary from any
Person other than Arch Coal or an Affiliate of Arch Coal; provided, however, that, in the case
of this clause (b), such Restricted Subsidiary is primarily engaged in a Permitted Business.

      “Affiliate” of any specified Person means:

     (a) any other Person directly or indirectly controlling or controlled by or under direct
or indirect common control with such specified Person; or

     (b) any other Person who is a director or officer of:

     (1) such specified Person;

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     (2) any Subsidiary of such specified Person; or

     (3) any Person described in clause (a) above.

For the purposes of this definition, “control,” when used with respect to any Person, means the
power to direct the management and policies of such Person, directly or indirectly, whether through
the ownership of voting securities, by contract or otherwise; and the terms “controlling” and
“controlled” have meanings correlative to the foregoing. For purposes of Section 4.09 and 4.10 of
this Supplemental Indenture and the definition of “Additional Assets” only, “Affiliate” shall also
mean any beneficial owner of shares representing 5% or more of the total voting power of the Voting
Stock (on a fully diluted basis) of Arch Coal or of rights or warrants to purchase such Voting
Stock (whether or not currently exercisable) and any Person who would be an Affiliate of any such
beneficial owner pursuant to the first sentence hereof.

      “Applicable Premium” means with respect to any Note on any redemption date, the greater of:

     (1) 1.0% of the principal amount of such Note on such redemption date; and

     (2) the excess, if any, of (i) the present value at such redemption date of (A)
the redemption price of such Note at October 1, 2015 (each such redemption price being
set forth in the applicable table appearing in Section 3.01 of this Supplemental
Indenture), plus (B) all required interest payments due on such Note through October
1, 2015 (excluding accrued but unpaid interest to the redemption date), computed using
a discount rate equal to the Treasury Rate as of such redemption date plus 50 basis
points; over (ii) the principal amount of such Note.

      “Arch Coal” has the meaning ascribed thereto in the preamble.

      “Arch Coal Notes” means all existing and future unsubordinated demand promissory notes issued
by Arch Coal to Arch Western as consideration for loans and advances made by Arch Western to Arch
Coal or any of its Affiliates (other than Arch Western or a Restricted Subsidiary of Arch Western)
required to be issued and pledged for the benefit of the holders of the Arch Western Notes and any
Permitted Refinancing Debt Incurred in respect thereof.

      “Arch Coal Senior Notes” means the $600.0 million aggregate principal amount of 8 3/4% Senior
Notes due 2016 issued on July 31, 2009 by Arch Coal pursuant to the Arch Coal Senior Notes
Indenture, and any 8 3/4% Senior Notes due 2016 registered under the Securities Act that may be
issued in exchange therefor.

      “Arch Coal Senior Notes Indenture” means the Indenture dated as of July 31, 2009 by and among
Arch Coal, the subsidiary guarantors named therein and U.S. Bank National Association, as trustee,
pursuant to which the Arch Coal Senior Notes were issued, as amended or supplemented to the Issue
Date.

      “Arch Western” means Arch Western Resources, LLC and any successor thereto.

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      “Arch Western Notes” means the 63/4% Senior Notes due 2013 issued by Arch Western Finance, LLC
issued pursuant to Arch Western Notes Indenture originally issued in the principal aggregate amount
of $950.0 million, until such notes are repaid or otherwise repurchased by Arch Coal or its
Restricted Subsidiaries.

      “Arch Western Notes Indenture” means the Indenture dated as of June 25, 2003 by and among Arch
Western Finance, LLC, Arch Coal, Inc., Arch Western Resources, LLC, Arch of Wyoming, LLC, Mountain
Coal Company L.L.C., Thunder Basin Coal Company L.L.C., and The Bank of New York, as trustee,
pursuant to which the Arch Western Notes were issued, as amended or supplemented to the Issue Date.

      “Asset Sale” means any sale, lease, transfer, issuance or other disposition (or series of
related sales, leases, transfers, issuances or dispositions) by Arch Coal or any of its Restricted
Subsidiaries, including any disposition by means of a merger, consolidation or similar transaction
(each referred to for the purposes of this definition as a “disposition”), of

     (a) any shares of Capital Stock of a Restricted Subsidiary (other than directors’
qualifying shares); or

     (b) any other Property of Arch Coal or any of its Restricted Subsidiaries outside of the
ordinary course of business of Arch Coal or such Restricted Subsidiary,

     other than, in the case of clause (a) or (b) above,

     (1) any disposition by a Restricted Subsidiary to Arch Coal or by Arch Coal or
its Restricted Subsidiary to a Restricted Subsidiary;

     (2) any disposition that constitutes a Permitted Investment or Restricted Payment
permitted by the covenant described under Section 4.08 of this Supplemental Indenture;

     (3) any disposition effected in compliance with the first paragraph of the
covenant described under Section 5.01 of this Supplemental Indenture; and

     (4) any disposition in a single transaction or a series of related transactions
of assets for aggregate consideration of less than $50.0 million;

     (5) a disposition of Cash Equivalents;

     (6) a disposition of accounts receivable in connection with the compromise,
settlement or collection thereof in the ordinary course of business or in bankruptcy
or similar proceedings;

     (7) a disposition of any property or equipment that has become damaged, worn out
or obsolete;

     (8) any disposition of accounts receivable and related assets or an interest
therein pursuant to a Receivables Facility;

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     (9) the creation or perfection of a Lien not prohibited by the Indenture (but not
the sale or other disposition of any asset subject to such Lien);

     (10) the surrender or waiver of contract rights or the settlement, release or
surrender of contract, tort or other claims of any kind; and

     (11) the sale or other disposition (whether or not in the ordinary course of
business) of coal properties, provided at the time of such sale or other disposition
such properties do not have associated with them any proved reserves.

      “Attributable Debt” in respect of a Sale and Leaseback Transaction means, at any date of
determination,

     (a) if such Sale and Leaseback Transaction is a Capital Lease Obligation, the amount of
Debt represented thereby according to the definition of “Capital Lease Obligations;” and

     (b) in all other instances, the greater of:

     (1) the Fair Market Value of the Property subject to such Sale and Leaseback
Transaction; and

     (2) the present value (discounted at the interest rate borne by the Notes,
compounded annually) of the total obligations of the lessee for rental payments during
the remaining term of the lease included in such Sale and Leaseback Transaction
(including any period for which such lease has been extended).

      “Average Life” means, as of any date of determination, with respect to any Debt or Preferred
Stock, the quotient obtained by dividing:

     (a) the sum of the product of the numbers of years (rounded to the nearest one-twelfth of
one year) from the date of determination to the dates of each successive scheduled principal
payment of such Debt or redemption or similar payment with respect to such Preferred Stock
multiplied by the amount of such payment by

     (b) the sum of all such payments.

      “Bankruptcy Law” means any law relating to bankruptcy, insolvency, receivership, winding-up,
liquidation, reorganization or relief of debtors or any amendment to, succession to or change in
any such law, including, without limitation, the bankruptcy law of Arch Coal’s jurisdiction and
title 11, United States Bankruptcy Code of 1978, as amended.

      “Board of Directors” means the board of directors of Arch Coal.

      “Business Day” means any day (other than a Saturday or Sunday) which is not a day on which
banking institutions in New York, New York are authorized or obligated by law to close for
business.

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      “Capital Lease Obligations” means any obligation under a lease that is required to be
capitalized for financial reporting purposes in accordance with GAAP; and the amount of Debt
represented by such obligation shall be the capitalized amount of such obligations determined in
accordance with GAAP; and the Stated Maturity thereof shall be the date of the last payment of rent
or any other amount due under such lease prior to the first date upon which such lease may be
terminated by the lessee without payment of a penalty. For purposes of Section 4.07 of this
Supplemental Indenture, a Capital Lease Obligation shall be deemed secured by a Lien on the
Property being leased.

      “Capital Stock” means, with respect to any Person, any shares or other equivalents (however
designated) of any class of corporate stock or partnership or limited liability company interests
or any other participations, rights, warrants, options or other interests in the nature of an
equity interest in such Person, including Preferred Stock, but excluding any debt security
convertible or exchangeable into such equity interest.

      “Capital Stock Sale Proceeds” means the aggregate proceeds, including cash and the Fair Market
Value of Property other than cash, received by Arch Coal from the issuance or sale (other than to a
Subsidiary of Arch Coal or an employee stock ownership plan or trust established by Arch Coal or
any such Subsidiary for the benefit of their employees) by Arch Coal of its Capital Stock (other
than Disqualified Stock) or from a contribution to its common equity capital, in each case after
the Issue Date, and net of attorneys’ fees, accountants’ fees, underwriters’ or placement agents’
fees, discounts or commissions and brokerage, consultant and other fees actually incurred in
connection with such issuance or sale or contribution, as the case may be, and net of taxes paid or
payable as a result thereof.

      “Cash Equivalents” means any of the following:

     (a) Investments in U.S. Government Obligations maturing within 365 days of the date of
acquisition thereof;

     (b) Investments in time deposit accounts, certificates of deposit and money market
deposits maturing within 90 days of the date of acquisition thereof issued by a bank or trust
company organized under the laws of the United States of America or any state thereof having
capital, surplus and undivided profits aggregating in excess of $500 million and whose
long-term debt is rated “A-3” or “A-” or higher according to Moody’s or S&P (or such similar
equivalent rating by at least one “nationally recognized statistical rating organization” (as
defined in Rule 436 under the Securities Act));

     (c) repurchase obligations with a term of not more than 30 days for underlying securities
of the types described in clause (a) entered into with:

     (1) a bank meeting the qualifications described in clause (b) above or

     (2) any primary government securities dealer reporting to the Market Reports
Division of the Federal Reserve Bank of New York;

     (d) Investments in commercial paper, maturing not more than 90 days after the date of
acquisition, issued by a corporation (other than an Affiliate of Arch Coal) organized and

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in existence under the laws of the United States of America with a rating at the time as
of which any Investment therein is made of “P-1” (or higher) according to Moody’s or “A-1” (or
higher) according to S&P (or such similar equivalent rating by at least one “nationally
recognized statistical rating organization” (as defined in Rule 436 under the Securities
Act));

     (e) direct obligations (or certificates representing an ownership interest in such
obligations) of any state of the United States of America (including any agency or
instrumentality thereof) for the payment of which the full faith and credit of such state is
pledged and which are not callable or redeemable at the issuer’s option; provided that:

     (1) the long-term debt of such state is rated “A-3” or “A-” or higher according
to Moody’s or S&P (or such similar equivalent rating by at least one “nationally
recognized statistical rating organization” (as defined in Rule 436 under the
Securities Act)), and

     (2) such obligations mature within 180 days of the date of acquisition thereof;
and

     (f) money market funds at least 95% of the assets of which constitute Cash Equivalents of
the kinds described in clauses (a) through (e) of this definition.

      “Change of Control” means the occurrence of any of the following events:

     (a) any “person” or “group” (as such terms are used in Sections 13(d) and 14(d) of the
Exchange Act or any successor provisions to either of the foregoing), including any group
acting for the purpose of acquiring, holding, voting or disposing of securities within the
meaning of Rule 13d-5(b)(1) under the Exchange Act, becomes the “beneficial owner” (as defined
in Rule 13d-3 under the Exchange Act, except that a person will be deemed to have “beneficial
ownership” of all shares that any such person has the right to acquire, whether such right is
exercisable immediately or only after the passage of time), directly or indirectly, of 50% or
more of the total voting power of the Voting Stock of Arch Coal (for purposes of this clause
(a), such person or group shall be deemed to beneficially own any Voting Stock of a
corporation held by any other corporation (the “parent corporation”) so long as such
person or group beneficially owns, directly or indirectly, in the aggregate at least a
majority of the total voting power of the Voting Stock of such parent corporation); or

     (b) the sale, transfer, assignment, lease, conveyance or other disposition, directly or
indirectly, of all or substantially all the Property of Arch Coal and its Restricted
Subsidiaries, considered as a whole (other than a disposition of such Property as an entirety
or virtually as an entirety to a Wholly Owned Restricted Subsidiary of Arch Coal), shall have
occurred; or

     (c) during any period of two consecutive years, individuals who at the beginning of such
period constituted the Board of Directors (together with any new directors whose election or
appointment by such Board or whose nomination for election by the shareholders of Arch Coal,
was approved by a vote of not less than three-fourths of the

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directors then still in office who were either directors at the beginning of such period
or whose election or nomination for election was previously so approved) cease for any reason
to constitute at least a majority of the Board of Directors then in office; or

          (d) the adoption of any plan of liquidation or dissolution of Arch Coal.

      “Code” means the Internal Revenue Code of 1986, as amended.

      “Commission” means the U.S. Securities and Exchange Commission.

      “Commodity Price Protection Agreement” means, in respect of a Person, any forward contract,
commodity swap agreement, commodity option agreement or other similar agreement or arrangement.

      “Consolidated Current Liabilities” means, as of any date of determination, the aggregate
amount of liabilities of Arch Coal and its consolidated Restricted Subsidiaries which may properly
be classified as current liabilities (including taxes accrued as estimated), after eliminating:

     (a) all intercompany items between Arch Coal and any Restricted Subsidiary or between
Restricted Subsidiaries; and

     (b) all current maturities of long-term Debt.

      “Consolidated Interest Coverage Ratio” of a Person means, as of any date of determination, the
ratio of:

     (a) the aggregate amount of EBITDA of such Person for the most recent four consecutive
fiscal quarters for which internal financial statements are available to

     (b) Consolidated Interest Expense of such Person for such four fiscal quarters;

     provided, however, that:

               (1) if

	 	(A)	 	since the beginning of such period such Person
or any Restricted Subsidiary of such Person has Incurred any Debt that
remains outstanding or Repaid any Debt or
	 
	 	(B)	 	the transaction giving rise to the need to
calculate the Consolidated Interest Coverage Ratio is an Incurrence or
Repayment of Debt,

Consolidated Interest Expense for such period shall be calculated after giving effect on a
pro forma basis to such Incurrence or Repayment as if such Debt was Incurred or Repaid on
the first day of such period, provided that, in the event of any such Repayment of Debt,
EBITDA for such period shall be calculated as if such Person or such Restricted

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Subsidiary of such Person had not earned any interest income actually earned during such
period in respect of the funds used to Repay such Debt, and

               (2) if

	 	(A)	 	since the beginning of such period such Person
or any Restricted Subsidiary of such Person shall have made any Asset
Sale or an Investment (by merger or otherwise) in any Restricted
Subsidiary of such Person (or any Person which becomes a Restricted
Subsidiary of such Person) or an acquisition of Property which
constitutes all or substantially all of an operating unit of a
business;
	 
	 	(B)	 	the transaction giving rise to the need to
calculate the Consolidated Interest Coverage Ratio is such an Asset
Sale, Investment or acquisition; or
	 
	 	(C)	 	since the beginning of such period any other
Person (that subsequently became a Restricted Subsidiary of such Person
or was merged with or into such Person or any Restricted Subsidiary of
such Person since the beginning of such period) shall have made such an
Asset Sale, Investment or acquisition,

then EBITDA for such period shall be calculated after giving pro forma effect to such
Asset Sale, Investment or acquisition as if such Asset Sale, Investment or acquisition had
occurred on the first day of such period.

     If any Debt bears a floating rate of interest and is being given pro forma effect, the
interest expense on such Debt shall be calculated as if the base interest rate in effect for such
floating rate of interest on the date of determination had been the applicable base interest rate
for the entire period (taking into account any Interest Rate Agreement applicable to such Debt if
such Interest Rate Agreement has a remaining term in excess of 12 months). In the event the
Capital Stock of any Restricted Subsidiary of such Person is sold during the period, such Person
shall be deemed, for purposes of clause (1) above, to have Repaid during such period the Debt of
such Restricted Subsidiary to the extent such Person and its continuing Restricted Subsidiaries are
no longer liable for such Debt after such sale.

      “Consolidated Interest Expense” of a Person means, for any period, the total interest expense
of such Person and its consolidated Restricted Subsidiaries, plus, to the extent not included in
such total interest expense, and to the extent Incurred by such Person or its Restricted
Subsidiaries,

     (a) interest expense attributable to Capital Lease Obligations;

     (b) amortization of debt discount and debt issuance cost, including commitment fees;

     (c) capitalized interest;

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     (d) non-cash interest expense;

     (e) commissions, discounts and other fees and charges owed with respect to letters of
credit and banker’s acceptance financing;

     (f) net costs associated with Interest Rate Agreements (including amortization of fees);

     (g) Disqualified Stock Dividends;

     (h) Preferred Stock Dividends;

     (i) interest Incurred in connection with Investments in discontinued operations;

     (j) interest accruing on any Debt of any other Person to the extent such Debt is
Guaranteed by such Person or any of its Restricted Subsidiaries; and

     (k) the cash contributions to any employee stock ownership plan or similar trust to the
extent such contributions are used by such plan or trust to pay interest or fees to any Person
(other than such Person) in connection with Debt Incurred by such plan or trust.

      “Consolidated Net Income” of a Person means, for any period, the net income (loss) of such
Person and its consolidated Restricted Subsidiaries; provided, however, that there shall not be
included in such Consolidated Net Income:

     (a) any net income (loss) of any other Person (other than such Person) if such other
Person is not a Restricted Subsidiary, except that:

     (1) subject to the exclusion contained in clause (c) below, equity of such Person
and its consolidated Restricted Subsidiaries in the net income of any such other
Person for such period shall be included in such Consolidated Net Income up to the
aggregate amount of cash distributed by such other Person during such period to such
Person or its Restricted Subsidiary as a dividend or other distribution (subject, in
the case of a dividend or other distribution to a Restricted Subsidiary, to the
limitations contained in clause (b) below); and

     (2) the equity of such Person and its consolidated Restricted Subsidiaries in a
net loss of any other Person for such period shall be included in determining such
Consolidated Net Income to the extent such Person or any Restricted Subsidiary of such
Person has actually contributed, lent or transferred cash to such other Person;

     (b) any net income (loss) of any Restricted Subsidiary if such Restricted Subsidiary is
subject to restrictions, directly or indirectly, on the payment of dividends or the making of
distributions, directly or indirectly, to such Person, except that:

     (1) subject to the exclusion contained in clause (c) below, the equity of such
Person and its consolidated Restricted Subsidiaries in the net income of any such

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Restricted Subsidiary for such period shall be included in such Consolidated Net
Income up to the aggregate amount of cash that is or could be dividend or distributed
or otherwise paid (including through making loans and repaying Debt) by such
Restricted Subsidiary during such period to such Person or another Restricted
Subsidiary as a dividend or other distribution (subject, in the case of a dividend or
other distribution to another Restricted Subsidiary, to the limitation contained in
this clause); and

     (2) the equity of such Person and its consolidated Restricted Subsidiaries in a
net loss of any such Restricted Subsidiary for such period shall be included in
determining such Consolidated Net Income;

     (c) any gain or loss realized upon the sale or other disposition of any Property of such
Person or any of its consolidated Subsidiaries (including pursuant to any Sale and Leaseback
Transaction) that is not sold or otherwise disposed of in the ordinary course of business;

     (d)any extraordinary gain or loss;

     (e) the cumulative effect of a change in accounting principles; and

     (f) any non-cash compensation expense realized for grants of performance shares, stock
options or other rights to officers, directors and employees of such Person or any Restricted
Subsidiary, provided that such shares, options or other rights can be redeemed at the option
of the holder only for Capital Stock of such Person (other than Disqualified Stock).

Notwithstanding the foregoing, for purposes of the covenant described under Section 4.08 of this
Supplemental Indenture only, there shall be excluded from Consolidated Net Income any dividends,
repayments of loans or advances or other transfers of Property from Unrestricted Subsidiaries to
such Person or a Restricted Subsidiary to the extent such dividends, repayments or transfers
increase the amount of Restricted Payments permitted under such covenant pursuant to clause (c)(4)
thereof.

      “Consolidated Net Tangible Assets” means, as of any date of determination, the sum of the
amounts that would appear on a consolidated balance sheet of Arch Coal and its consolidated
Restricted Subsidiaries, less any amounts attributable to non-Wholly Owned Restricted Subsidiaries
that are not consolidated with Arch Coal and plus the portion of the consolidated net tangible
assets of a non-Wholly Owned Restricted Subsidiary that is not consolidated with Arch Coal equal to
the percentage of its outstanding Capital Stock owned by Arch Coal and its Restricted Subsidiaries,
as of the end of the most recent fiscal quarter for which internal financial statements are
available as the total assets (determined on a pro forma basis to give effect to any acquisition or
disposition of assets made after such balance sheet date and on or prior to such date of
determination), and less accumulated depreciation and amortization, allowances for doubtful
receivables, other applicable reserves and other properly deductible items) of Arch Coal and its
Restricted Subsidiaries, after giving effect to purchase accounting and after deducting

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therefrom Consolidated Current Liabilities and, to the extent otherwise included, the amounts
of (without duplication):

     (a) the excess of cost over fair market value of assets or businesses acquired;

     (b) any revaluation or other write-up in book value of assets subsequent to the last day
of the fiscal quarter of Arch Coal immediately preceding the Issue Date as a result of a
change in the method of valuation in accordance with GAAP; and

     (c) unamortized debt discount and expenses and other unamortized deferred charges,
goodwill, patents, trademarks, service marks, trade names, copyrights, licenses, organization
or developmental expenses and other intangible items.

      “Credit Agreement” means that certain Revolving Credit Agreement, dated as of December 22,
2004, by and among Arch Coal, PNC Bank, National Association, as Administrative Agent and the other
lenders named therein providing for up to $860.0 million of revolving credit borrowings, including
any related notes, Guarantees, collateral documents, instruments and agreements executed in
connection therewith, and in each case as amended, restated, modified, renewed, refunded, replaced
or refinanced from time to time, regardless of whether such amendment, restatement, modification,
renewal, refunding, replacement or refinancing is with the same financial institutions or
otherwise.

      “Credit Facilities” means, one or more debt facilities (including, without limitation, the
Credit Agreement), commercial paper facilities or indentures, in each case with banks or other
institutional lenders or a trustee, providing for revolving credit loans, term loans, receivables
financing (including through the sale of receivables to such lenders or to special purpose entities
formed to borrow from such lenders against such receivables), letters of credit or issuances of
notes, in each case, as amended, restated, modified, renewed, refunded, replaced or refinanced in
whole or in part from time to time.

      “Currency Exchange Protection Agreement” means, in respect of a Person, any foreign exchange
contract, currency swap agreement, currency option or other similar agreement or arrangement.

      “Custodian” means any receiver, trustee, assignee, liquidator, custodian, administrator or
similar official under any Bankruptcy Law.

      “Debt” means, with respect to any Person on any date of determination (without duplication):

     (a) the principal of and premium (if any) in respect of:

     (1) debt of such Person for money borrowed, and

     (2) debt evidenced by notes, debentures, bonds or other similar instruments for
the payment of which such Person is responsible or liable;

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     (b) all Capital Lease Obligations of such Person and all Attributable Debt in respect of
Sale and Leaseback Transactions entered into by such Person;

     (c) all obligations of such Person representing the deferred purchase price of Property,
all conditional sale obligations of such Person and all obligations of such Person under any
title retention agreement (but excluding in-kind obligations of such Person relating to net
coal balancing positions or bookouts and trade accounts payable, in either case arising in the
ordinary course of business);

     (d) all obligations of such Person for the reimbursement of any obligor on any letter of
credit, banker’s acceptance or similar credit transaction (other than obligations with respect
to letters of credit securing obligations (other than obligations described in (a) through (c)
above) entered into in the ordinary course of business of such Person to the extent such
letters of credit are not drawn upon or, if and to the extent drawn upon, such drawing is
reimbursed no later than the third business day following receipt by such Person of a demand
for reimbursement following payment on the letter of credit);

     (e) the amount of all obligations of such Person with respect to the Repayment of any
Disqualified Stock or, with respect to any Subsidiary of such Person, any Preferred Stock (but
excluding, in each case, any accrued dividends);

     (f) all obligations of the type referred to in clauses (a) through (e) above of other
Persons and all dividends of other Persons for the payment of which, in either case, such
Person is responsible or liable, directly or indirectly, as obligor, guarantor or otherwise,
including by means of any Guarantee;

     (g) all obligations of the type referred to in clauses (a) through (f) above of other
Persons secured by any Lien on any Property of such Person (whether or not such obligation is
assumed by such Person), the amount of such obligation being deemed to be the lesser of the
Fair Market Value of such Property and the amount of the obligation so secured; and

     (h) to the extent not otherwise included in this definition, Hedging Obligations of such
Person.

The amount of Debt of any Person at any date shall be the outstanding balance, or the accreted
value of such Debt in the case of Debt issued with original issue discount, at such date of all
unconditional obligations as described above and the maximum liability, upon the occurrence of the
contingency giving rise to the obligation, of any contingent obligations at such date. The amount
of Debt represented by a Hedging Obligation shall be equal to:

     (1) zero if such Hedging Obligation has been Incurred pursuant to clause (f), (g)
or (h) of the second paragraph of the covenant described under Section 4.06 of this
Supplemental Indenture; or

     (2) the notional amount of such Hedging Obligation if not Incurred pursuant to
such clauses.

13

 

      “Default” means any event which is, or after notice or passage of time or both would be, an
Event of Default.

      “Depositary” means DTC until a successor Depositary, if any, shall have become such pursuant
to this Supplemental Indenture, and thereafter Depositary shall mean or include each Person who is
then a Depositary hereunder.

      “Disqualified Stock” means any Capital Stock of a Person or any of its Restricted Subsidiaries
that by its terms (or by the terms of any security into which it is convertible or for which it is
exchangeable, in either case at the option of the holder thereof) or otherwise:

     (a) matures or is mandatorily redeemable pursuant to a sinking fund obligation or
otherwise;

     (b) is or may become redeemable or repurchaseable at the option of the holder thereof,
in whole or in part; or

     (c) is convertible or exchangeable at the option of the holder thereof for Debt or
Disqualified Stock,

on or prior to, in the case of clause (a), (b) or (c), the first anniversary of the Stated Maturity
of the Notes. Notwithstanding the preceding sentence, any Capital Stock that would constitute
Disqualified Stock solely because the holders thereof have the right to require Arch Coal to
repurchase such Capital Stock upon the occurrence of a change of control or an asset sale will not
constitute Disqualified Stock if (i) the “asset sale” or “change of control” provisions applicable
to such Capital Stock are no more favorable to the holders of such Capital Stock than the
provisions contained in the covenant described in Section 4.09 of this Supplemental Indenture and
the covenant described in Section 4.11 of this Supplemental Indenture and (ii) such Capital Stock
specifically provides that such Person will not repurchase or redeem any such stock pursuant to
such provision prior to Arch Coal’s repurchase of such Notes as are required to be repurchased
pursuant to the covenant described in Section 4.09 of this Supplemental Indenture and the covenant
described in Section 4.11 of this Supplemental Indenture.

      “Disqualified Stock Dividends” of a Person means all dividends (other than dividends paid in
Capital Stock (except Disqualified Stock) of Arch Coal) with respect to Disqualified Stock of such
Person held by Persons other than a Wholly Owned Restricted Subsidiary of such Person. The amount
of any such dividend shall be equal to the quotient of such dividend divided by the difference
between one and the maximum statutory federal income tax rate (expressed as a decimal number
between 1 and 0) then applicable to such Person.

      “Domestic Subsidiary” means any Restricted Subsidiary of Arch Coal other than a Foreign
Subsidiary.

      “DTC” means The Depository Trust Company.

      “EBITDA” of a Person means, for any period, an amount equal to, for such Person and its
consolidated Restricted Subsidiaries:

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     (a) the sum of Consolidated Net Income for such period, plus the following to the
extent reducing Consolidated Net Income for such period:

     (1) the provision for taxes based on income or profits or utilized in computing
net loss;

     (2) Consolidated Interest Expense;

     (3) depreciation and depletion;

     (4) amortization of intangibles;

     (5) any other non-cash items (other than any such non-cash item to the extent
that it represents an accrual of, or reserve for, cash expenditures in any future
period);

     (6) accruals of Postretirement Medical Liabilities, as defined by GAAP, net of
cash payments for such Postretirement Medical Liabilities;

     (7) accretion of asset retirement obligations in accordance with SFAS No. 143,
Accounting for Asset Retirement Obligations, and any similar accounting in prior
periods, net of cash payments for such asset retirement obligations;

     (8) the amount of any unusual or non-recurring losses or charges (or minus any
unusual or non-recurring gains), including without limitation, restructuring charges
such as retention, severance, systems establishment costs or excess pension, OPEB,
black lung settlement, curtailment or other excess charges and fees, expenses or
charges related to any offering of Capital Stock or Debt of such Person permitted to
be Incurred;

     (9) any net loss (or minus any net gain) attributable to the early extinguishment
of Debt, including, without limitation, any premiums or similar charges related to any
Debt Refinancing; and

     (10) to the extent not included in (1) through (9) above, the portion of any of
the items described in (1) through (9) above of a non-Wholly Owned Restricted
Subsidiary that is not consolidated with such Person equal to the percentage of the
outstanding common Capital Stock of the non-Wholly Owned Restricted Subsidiary owned
by such Person and its Restricted Subsidiaries, minus

     (b) all non-cash items increasing Consolidated Net Income for such period (other than
any such non-cash item to the extent that it will result in the receipt of cash payments in
any future period).

Notwithstanding the foregoing clause (a), the provision for taxes and the depreciation,
amortization and non-cash items of a Restricted Subsidiary shall be added to Consolidated Net
Income to compute EBITDA only to the extent (and in the same proportion) that the net income of
such Restricted Subsidiary was included in calculating Consolidated Net Income and only if a

15

 

corresponding amount would be permitted at the date of determination to be dividended or
distributed or otherwise paid (including through making loans and repaying debt) to such Person by
such Restricted Subsidiary without prior approval (that has not been obtained), pursuant to the
terms of its charter and all agreements, instruments, judgments, decrees, orders, statutes, rules
and governmental regulations applicable to such Restricted Subsidiary or its shareholders or
members.

     “Event of Default” has the meaning set forth under Section 6.01 of this Supplemental
Indenture.

     “Exchange Act” means the Securities Exchange Act of 1934, as amended.

     “Fair Market Value” means, with respect to any Property, the price that could be negotiated in
an arm’s-length free market transaction, for cash, between a willing seller and a willing buyer,
neither of whom is under undue pressure or compulsion to complete the transaction. Fair Market
Value shall be determined, except as otherwise provided,

     (a) if such Property has a Fair Market Value equal to or less than $5.0 million, by any
Officer; or

     (b) if such Property has a Fair Market Value in excess of $5.0 million, by at least a
majority of the disinterested members of the Board of Directors and evidenced by a Board
Resolution, dated within 30 days of the relevant transaction, delivered to the Trustee.

     “Foreign Subsidiary” means any Subsidiary of Arch Coal that is not organized under the laws of
the United States of America or any state thereof or the District of Columbia.

     “GAAP” means United States generally accepted accounting principles as in effect on the Issue
Date, including those set forth in:

     (a) the opinions and pronouncements of the Accounting Principles Board of the American
Institute of Certified Public Accountants and the Public Company Accounting Oversight Board;

     (b) the statements and pronouncements of the Financial Accounting Standards Board;

     (c) such other statements by such other entity as approved by a significant segment of
the accounting profession; and

     (d) the rules and regulations of the Commission governing the inclusion of financial
statements (including pro forma financial statements) in periodic reports required to be filed
pursuant to Section 13 of the Exchange Act, including opinions and pronouncements in staff
accounting bulletins and similar written statements from the accounting staff of the
Commission.

provided that GAAP shall not give effect to FASB No. APB 14-1

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     “Guarantee” means any obligation, contingent or otherwise, of any Person directly or
indirectly guaranteeing any Debt of any other Person and any obligation, direct or indirect,
contingent or otherwise, of such Person:

     (a) to purchase or pay (or advance or supply funds for the purchase or payment of) such
Debt of such other Person (whether arising by virtue of partnership arrangements, or by
agreements to keep-well, to purchase assets, goods, securities or services, to take-or-pay or
to maintain financial statement conditions or otherwise); or

     (b) entered into for the purpose of assuring in any other manner the obligee against
loss in respect thereof (in whole or in part);

provided, however, that the term “Guarantee” shall not include:

     (1) endorsements for collection or deposit in the ordinary course of business; or

     (2) a contractual commitment by one Person to invest in another Person for so
long as such Investment is reasonably expected to constitute a Permitted Investment
under clause (a), (b) or (c) of the definition of “Permitted Investment.”

The term “Guarantee” used as a verb has a corresponding meaning.

     “Guarantor” means any Subsidiary of Arch Coal that has issued a Guarantee in favor of the
Notes.

     “Hedging Obligation” of any Person means any obligation of such Person pursuant to any
Interest Rate Agreement, Currency Exchange Protection Agreement, Commodity Price Protection
Agreement or any other similar agreement or arrangement.

     “Incur” means, with respect to any Debt or other obligation of any Person, to create, issue,
incur (by merger, conversion, exchange or otherwise), extend, assume, Guarantee or become liable in
respect of such Debt or other obligation or the recording, as required pursuant to GAAP or
otherwise, of any such Debt or obligation on the balance sheet of such Person (and “Incurrence” and
“Incurred” shall have meanings correlative to the foregoing); provided, however, that any Debt or
other obligations of a Person existing at the time such Person becomes a Subsidiary (whether by
merger, consolidation, acquisition or otherwise) shall be deemed to be Incurred by such Subsidiary
at the time it becomes a Subsidiary; and provided further, however, that solely for purposes of
determining compliance with Section 4.06 of this Supplemental Indenture, amortization of debt
discount shall not be deemed to be the Incurrence of Debt, provided that in the case of Debt sold
at a discount, the amount of such Debt Incurred shall at all times be the aggregate principal
amount at Stated Maturity.

     “Indenture Obligations” means the obligations of Arch Coal and any other obligor under this
Supplemental Indenture or under the Notes, including any Guarantor, to pay principal of, premium,
if any, and interest when due and payable, and all other amounts due or to become due under or in
connection with this Supplemental Indenture, the Notes and the performance of all

17

 

other obligations to the Trustee and the Holders under this Supplemental Indenture and the
Notes, according to the respective terms thereof.

     “Independent Financial Advisor” means an accounting, appraisal, engineering or banking firm of
national standing, provided that such firm or appraiser is not an Affiliate of Arch Coal.

     “Interest Payment Date” means April 1 and October 1 of each year to Stated Maturity.

     “Interest Rate Agreement” means, for any Person, any interest rate swap agreement, interest
rate cap agreement, interest rate collar agreement or other similar agreement.

     “Investment” by any Person means any direct or indirect loan, advance or other extension of
credit or capital contribution (by means of transfers of cash or other Property to others or
payments for Property or services for the account or use of others, or otherwise) to, or Incurrence
of a Guarantee of any obligation of, or purchase or acquisition of Capital Stock, bonds, notes,
debentures or other securities or evidence of Debt issued by, any other Person. For purposes of
the covenants described under Section 4.08 and 4.15 of this Supplemental Indenture and the
definition of “Restricted Payment,” the term “Investment” shall include the portion (proportionate
to Arch Coal’s or a Restricted Subsidiary’s equity interest in such Subsidiary) of the Fair Market
Value of the net assets of any Subsidiary of Arch Coal at the time that such Subsidiary is
designated an Unrestricted Subsidiary; provided, however, that upon a redesignation of such
Subsidiary as a Restricted Subsidiary, Arch Coal shall be deemed to continue to have a permanent
“Investment” in an Unrestricted Subsidiary of an amount (if positive) equal to:

     (a) Arch Coal’s “Investment” in such Subsidiary at the time of such redesignation, less

     (b) the portion (proportionate to Arch Coal’s or a Restricted Subsidiary’s equity
interest in such Subsidiary) of the Fair Market Value of the net assets of such Subsidiary at
the time of such redesignation.

In determining the amount of any Investment made by transfer of any Property other than cash, such
Property shall be valued at its Fair Market Value at the time of such Investment.

     “Investment Grade Rating” means a rating equal to or higher than Baa3 (or the equivalent) by
Moody’s and BBB- (or the equivalent) by S&P.

     “Issue Date” means the date on which the Notes are initially issued.

     “Issuer Order” means a written order signed in the name of Arch Coal by any Person authorized
by a resolution of the directors, Officers or shareholders of Arch Coal or such other similar
governing body or Person of Arch Coal.

     “Lien” means, with respect to any Property of any Person, any mortgage or deed of trust,
pledge, hypothecation, assignment, deposit arrangement, security interest, lien, charge, easement
(other than any easement not materially impairing usefulness or marketability), encumbrance,
preference, priority or other security agreement or preferential arrangement of any kind or nature

18

 

whatsoever on or with respect to such Property (including any Capital Lease Obligation,
conditional sale or other title retention agreement having substantially the same economic effect
as any of the foregoing or any Sale and Leaseback Transaction).

     “LLC Agreement” means the Limited Liability Company Agreement of Arch Western Resources, LLC,
dated as of June 1, 1998 between Arch Western Acquisition Corporation and Delta Housing, Inc.

     “Maturity” means, with respect to any indebtedness, the date on which any principal of such
indebtedness becomes due and payable as therein or herein provided, whether at the Stated Maturity
with respect to such principal or by declaration of acceleration, call for redemption or purchase
or otherwise.

     “Moody’s” means Moody’s Investors Service, Inc. or any successor to the rating agency business
thereof.

     “Net Available Cash” from any Asset Sale means cash payments received therefrom (including any
cash payments received by way of deferred payment of principal pursuant to a note or installment
receivable or otherwise, but only as and when received, but excluding any other consideration
received in the form of assumption by the acquiring Person of Debt or other obligations relating to
the Property that is the subject of such Asset Sale or received in any other non-cash form), in
each case net of:

     (a) all legal, title and recording tax expenses, commissions and other fees and
expenses incurred, and all Federal, state, provincial, foreign and local taxes required to be
accrued as a liability under GAAP, as a consequence of such Asset Sale;

     (b) all payments made on or in respect of any Debt that is secured by any Property
subject to such Asset Sale, in accordance with the terms of any Lien upon such Property, or
which must by its terms, or in order to obtain a necessary consent to such Asset Sale, or by
applicable law, be repaid out of the proceeds from such Asset Sale;

     (c) all distributions and other payments required to be made to minority interest
Holders in Subsidiaries or joint ventures as a result of such Asset Sale; and

     (d) the deduction of appropriate amounts provided by the seller as a reserve, in
accordance with GAAP, against any liabilities associated with the Property disposed of in such
Asset Sale and retained by Arch Coal or any Restricted Subsidiary after such Asset Sale.

     “Note Guarantees” means a Guarantee by a Guarantor of all of Arch Coal’s obligations with
respect to the Notes.

     “Officer” means the Chief Executive Officer, the President, the Chief Financial Officer or any
Senior Vice President of Arch Coal.

     “Officers’ Certificate” means a certificate signed by two Officers, at least one of whom shall
be the principal executive officer or principal financial officer, and delivered to the Trustee.

19

 

     “Opinion of Counsel” means a written opinion from legal counsel who is acceptable to the
Trustee. The counsel may be an employee of or counsel to Arch Coal or the Trustee.

     “Permitted Business” means the business conducted by Arch Coal on the Issue Date, any business
that is related, ancillary or complementary to the businesses of Arch Coal and its Restricted
Subsidiaries on the Issue Date and any business of a nature that is or shall have become (i)
related to the extraction, processing, storage, distribution or use of fuels or minerals,
including, without limitation, coal gasification, coal liquefaction, natural gas, liquefied natural
gas, coalbed or coal mine methane gas and bitumen from tar sands, as well as the production of
electricity or other sources of power, such as coal- or natural gas-fueled power generation
facilities, wind, solar or hydroelectric power generation facilities or similar activities or (ii)
customary in the coal production industry.

     “Permitted Investment” means any Investment by Arch Coal or any Restricted Subsidiary in:

     (a) Arch Coal or any Restricted Subsidiary;

     (b) any Person that will, upon the making of such Investment, become a Restricted
Subsidiary;

     (c) any Person if as a result of such Investment such Person is merged or consolidated
with or into, or transfers or conveys all or substantially all its Property to, Arch Coal or
its Restricted Subsidiary, provided that such Person’s primary business is a Permitted
Business;

     (d) Cash Equivalents;

     (e) receivables owing to Arch Coal or its Restricted Subsidiary, if created or acquired
in the ordinary course of business and payable or dischargeable in accordance with customary
trade terms; provided, however, that such trade terms may include such concessionary trade
terms as Arch Coal or such Restricted Subsidiary deems reasonable under the circumstances;

     (f) payroll, travel and similar advances to cover matters that are expected at the time
of such advances ultimately to be treated as expenses for accounting purposes and that are
made in the ordinary course of business;

     (g) loans and advances to employees made in the ordinary course of business permitted
by law of Arch Coal or such Restricted Subsidiary, as the case may be; provided that such
loans and advances do not exceed $5.0 million in the aggregate at any one time outstanding;

          (h) stock, obligations or other securities received in settlement of debts created in
the ordinary course of business and owing to Arch Coal or a Restricted Subsidiary or in
satisfaction of judgments;

20

 

          (i) any Person to the extent such Investment represents the non-cash portion of the
consideration received in connection with an Asset Sale consummated in compliance with the
covenant described under Section 4.09 of this Supplemental Indenture, or any non-cash
consideration received in connection with a disposition of Property excluded from the
definition of Asset Sale;

     (j) Investments in an aggregate amount, together with all other Investments made
pursuant to this clause (j), not to exceed 10.0% of Consolidated Net Tangible Assets (with the
Fair Market Value being measured at the time made and without giving effect to subsequent
changes in value and net of, with respect to the Investment in any particular Person made
pursuant to this clause, the cash return thereon received after the Issue Date as a result of
any sale for cash, repayment, return, redemption, liquidating distribution or other cash
realization (not included in Consolidated Net Income) not to exceed the amount of such
Investments in such Person made after the Issue Date in reliance on this clause);

     (k) other Investments made for Fair Market Value that do not exceed $100.0 million in
the aggregate outstanding at any one time (with the Fair Market Value being measured at the
time made and without giving effect to subsequent changes in value);

          (l) Hedging Obligations that constitute Permitted Debt;

          (m) Investments in connection with a Receivables Facility and

          (n) Investments in Permitted Joint Ventures in an aggregate amount, together with all
other Investments made pursuant to this clause (n), not to exceed 5.0% of Consolidated Net
Tangible Assets (with the Fair Market Value being measured at the time made and without giving
effect to subsequent changes in value and net of, with respect to the Investment in any
particular Person made pursuant to this clause, the cash return thereon received after the
Issue Date as a result of any sale for cash, repayment, return, redemption, liquidating
distribution or other cash realization (not included in Consolidated Net Income) not to exceed
the amount of such Investments in such Person made after the Issue Date in reliance on this
clause).

     “Permitted Joint Ventures” means any agreement, contract or other arrangement between Arch
Coal or any Restricted Subsidiary and any Person engaged principally in a Permitted Business that
permits one party to share risks or costs, comply with regulatory requirements or satisfy other
business objectives customarily achieved through the conduct of such Permitted Business jointly
with third parties.

     “Permitted Liens” means:

     (a) Liens to secure Debt under Credit Facilities (including Guarantees thereof) in an
aggregate amount at any one time outstanding not to exceed the amount of Debt permitted to be
Incurred under clause (a) of the second paragraph of the covenant described in Section 4.06 of
this Supplemental Indenture;

     (b) Liens to secure Debt permitted to be Incurred under clause (d) of the second
paragraph of the covenant described in Section 4.06 of this Supplemental Indenture

21

 

and other purchase money Liens to finance Property of Arch Coal or any of its Restricted
Subsidiaries; provided that any such Lien may not extend to any Property of Arch Coal or any
Restricted Subsidiary, other than the Property acquired, constructed or leased and any
improvements or accessions to such Property (including, in the case of the acquisition of
Capital Stock of a Person that becomes a Restricted Subsidiary, Liens on the Property of the
Person whose Capital Stock was acquired);

     (c) Liens for taxes, assessments or governmental charges or levies on the Property of
Arch Coal or any Restricted Subsidiary if the same shall not at the time be delinquent or
thereafter can be paid without penalty, or are being contested in good faith and by
appropriate proceedings promptly instituted and diligently concluded, provided that any
reserve or other appropriate provision that shall be required in conformity with GAAP shall
have been made therefor;

     (d) Liens imposed by law, such as carriers’, warehousemen’s and mechanics’ Liens and
other similar Liens, on the Property of Arch Coal or any Restricted Subsidiary arising in the
ordinary course of business and securing payment of obligations that are not more than 60 days
past due or are being contested in good faith and by appropriate proceedings;

     (e) Liens on the Property of Arch Coal or any Restricted Subsidiary Incurred in the
ordinary course of business to secure performance of obligations with respect to statutory or
regulatory requirements, performance or return-of-money bonds, surety bonds or other
obligations of a like nature and Incurred in a manner consistent with industry practice, in
each case which are not Incurred in connection with the borrowing of money, the obtaining of
advances or credit or the payment of the deferred purchase price of Property and which do not
in the aggregate impair in any material respect the use of Property in the operation of the
business of Arch Coal and the Restricted Subsidiaries taken as a whole;

     (f) Liens on Property at the time Arch Coal or any Restricted Subsidiary acquired such
Property, including any acquisition by means of a merger or consolidation with or into Arch
Coal or any Restricted Subsidiary; provided, however, that any such Lien may not extend to any
other Property of Arch Coal or any Restricted Subsidiary; provided further, however, that such
Liens shall not have been Incurred in anticipation of or in connection with the transaction or
series of transactions pursuant to which such Property was acquired by Arch Coal or any
Restricted Subsidiary;

     (g) Liens on the Property of a Person at the time such Person becomes a Restricted
Subsidiary; provided, however, that any such Lien may not extend to any other Property of Arch
Coal or any other Restricted Subsidiary that is not a direct Subsidiary of such Person;
provided further, however, that any such Lien was not Incurred in anticipation of or in
connection with the transaction or series of transactions pursuant to which such Person became
a Restricted Subsidiary;

     (h) pledges or deposits by Arch Coal or any Restricted Subsidiary under workers’
compensation laws, unemployment insurance laws or similar legislation, or

22

 

good faith deposits in connection with bids, tenders, contracts (other than for the
payment of Debt) or leases to which Arch Coal or any Restricted Subsidiary is party, or
deposits to secure public or statutory obligations of Arch Coal, or deposits for the payment
of rent, in each case Incurred in the ordinary course of business;

     (i) utility easements, building restrictions and such other encumbrances or charges
against real Property as are of a nature generally existing with respect to properties of a
similar character;

     (j) Liens existing on the Issue Date not otherwise described in clauses (a) through
(i) above or (k) through (t) below;

     (k) Liens on the Property of Arch Coal or any Restricted Subsidiary to secure any
Refinancing, in whole or in part, of any Debt secured by Liens referred to in clause (b), (f),
(g) or (j) above; provided, however, that any such Lien shall be limited to all or part of the
same Property that secured the original Lien (together with improvements and accessions to
such Property), and the aggregate principal amount of Debt that is secured by such Lien shall
not be increased to an amount greater than the sum of:

     (1) the outstanding principal amount, or, if greater, the committed amount, of
the Debt secured by Liens described under clause (b), (f), (g) or (j) above, as the
case may be, at the time the original Lien became a Permitted Lien under the
Indenture, and

     (2) an amount necessary to pay any fees and expenses, including premiums and
defeasance costs, incurred by Arch Coal or such Restricted Subsidiary in connection
with such Refinancing;

     (l) Liens on the Arch Coal Notes to secure the Arch Western Notes and any Permitted
Refinancing Debt Incurred in respect thereof;

     (m) Liens on Property used to defease or to satisfy and discharge Debt; provided that
(a) the Incurrence of such Debt was not prohibited by the Indenture and (b) such defeasance or
satisfaction and discharge is not prohibited by the Indenture;

     (n) Liens in favor of Arch Coal or any Restricted Subsidiary;

     (o) judgment Liens not giving rise to an Event of Default, that are being contested in
good faith by appropriate legal proceedings and for which adequate reserves have been made;

     (p) Liens on accounts receivable and related assets in connection with a Receivables
Facility;

          (q) rights of banks to set off deposits against debts owed to said bank;

23

 

          (r) contract mining agreements and leases or subleases granted to others that do not
materially interfere with the ordinary conduct of business of Arch Coal or any of its
Restricted Subsidiaries;

     (s) Liens on Capital Stock of an Unrestricted Subsidiary that secure Debt or other
obligations of such Unrestricted Subsidiary; and

     (t) Liens not otherwise permitted by clauses (a) through (s) above encumbering
Property having an aggregate Fair Market Value not in excess of 10.0% of Consolidated Net
Tangible Assets.

     “Permitted Refinancing Debt” means any Debt that Refinances any other Debt, including any
successive Refinancings, so long as:

     (a) such Debt is in an aggregate principal amount (or if Incurred with original issue
discount, an aggregate issue price) not in excess of the sum of:

     (1) the aggregate principal amount (or if Incurred with original issue discount,
the aggregate accreted value) then outstanding of the Debt being Refinanced; and

     (2) an amount necessary to pay any fees and expenses, including premiums and
defeasance costs, related to such Refinancing;

     (b) the Average Life of such Debt is equal to or greater than the Average Life of the
Debt being Refinanced; and

     (c) the new Debt shall not be senior in right of payment to the Debt that is being
Refinanced;

provided, however, that Permitted Refinancing Debt shall not include:

     (x) Debt of a Subsidiary of Arch Coal that is not a Guarantor that Refinances
Debt of Arch Coal or a Guarantor, or

     (y) Debt of Arch Coal or a Restricted Subsidiary that Refinances Debt of an
Unrestricted Subsidiary.

     “Person” means any individual, corporation, company (including any limited liability company),
association, partnership, joint venture, trust, unincorporated organization, government or any
agency or political subdivision thereof or any other entity.

     “Preferred Stock” means any Capital Stock of a Person, however designated, which entitles the
holder thereof to a preference with respect to the payment of dividends, or as to the distribution
of assets upon any voluntary or involuntary liquidation or dissolution of such Person, over shares
of any other class of Capital Stock issued by such Person.

24

 

     “Preferred Stock Dividends” of a Person means all dividends with respect to Preferred Stock of
Restricted Subsidiaries of such Person (other than dividends paid in Capital Stock (except
Disqualified Stock) of Arch Coal) held by Persons other than such Person or a Wholly Owned
Restricted Subsidiary of such Person. The amount of any such dividend shall be equal to the
quotient of such dividend divided by the difference between one and the maximum statutory federal
income rate (expressed as a decimal number between 1 and 0) then applicable to the issuer of such
Preferred Stock.

     “pro forma” means, with respect to any calculation made or required to be made pursuant to the
terms hereof, a calculation performed in accordance with Article 11 of Regulation S-X promulgated
under the Securities Act, as interpreted in good faith by the Board of Directors after consultation
with the independent certified public accountants of Arch Coal, or otherwise a calculation made in
good faith by the Board of Directors after consultation with the independent certified public
accountants of Arch Coal, as the case may be.

     “Property” means, with respect to any Person, any interest of such Person in any kind of
property or asset, whether real, personal or mixed, or tangible or intangible, including Capital
Stock in, and other securities of, any other Person. For purposes of any calculation required
pursuant to this Supplemental Indenture, the value of any Property shall be its Fair Market Value.

     “Public Equity Offering” means an underwritten public offering of common Capital Stock (other
than Disqualified Stock) of Arch Coal pursuant to an effective registration statement under the
Securities Act.

     “Purchase Money Debt” means Debt:

     (a) consisting of the deferred purchase price of Property, conditional sale
obligations, obligations under any title retention agreement, other purchase money obligations
and obligations in respect of industrial revenue bonds, in each case where the maturity of
such Debt does not exceed the anticipated useful life of the Property being financed; and

     (b) Incurred to finance the acquisition, construction or lease by Arch Coal or a
Restricted Subsidiary of such Property, including additions and improvements thereto;

provided, however, that such Debt is Incurred within 180 days after the acquisition, construction
or lease of such Property by Arch Coal or such Restricted Subsidiary.

     “Rating Agencies” means Moody’s and S&P.

     “Receivables Facility” means one or more receivables financing facilities or arrangements, as
amended or modified from time to time, pursuant to which Arch Coal or any Subsidiary sells
(including a sale in exchange for a promissory note or Capital Stock of a Receivables Subsidiary)
its accounts receivable to a Receivables Subsidiary or a Receivables Subsidiary sells accounts
receivables to any other Person; provided such transaction is on market terms at the time Arch Coal
or such Subsidiary enters into such transaction.

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     “Receivables Subsidiary” means a Subsidiary of Arch Coal which engages in no activities other
than those reasonably related to or in connection with the entering into of receivables
securitization transactions and which is designated by the Board of Directors (as provided below)
as a Receivables Subsidiary and

     (1) no portion of the Debt or any other obligations (contingent or otherwise) of
which:

	 	(A)	 	is guaranteed by Arch Coal or any Restricted
Subsidiary (excluding Guarantees (other than the principal of, and
interest on, Debt) pursuant to Standard Securitization Undertakings);
	 
	 	(B)	 	is recourse to or obligates Arch Coal or any
Restricted Subsidiary in any way other than pursuant to Standard
Securitization Undertakings; or
	 
	 	(C)	 	subjects any Property of Arch Coal or any
Restricted Subsidiary, directly or indirectly, contingently or
otherwise, to the satisfaction thereof, other than pursuant to Standard
Securitization Undertakings;

     (2) with which neither Arch Coal nor any Restricted Subsidiary has any material
contract, agreement, arrangement or understanding other than on terms no less
favorable to Arch Coal or such Restricted Subsidiary than those that might be obtained
at the time from Persons that are not Affiliates of Arch Coal, other than fees payable
in the ordinary course of business in connection with servicing accounts receivable of
such entity; and

     (3) to which neither Arch Coal nor any Restricted Subsidiary has any obligation
to maintain or preserve such entity’s financial condition or cause such entity to
achieve certain levels of operating results other than pursuant to Standard
Securitization Undertakings.

Any designation of a Subsidiary as a Receivable Subsidiary shall be evidenced to the Trustee by
filing with the Trustee a certified copy of the resolution of the Board of Directors giving effect
to the designation and an Officers’ Certificate certifying that the designation complied with the
preceding conditions and was permitted by this Supplemental Indenture.

     “Record Date” for the interest payable on any Interest Payment Date means March 15 or
September 15 (whether or not a Business Day), as the case may be, next preceding such Interest
Payment Date.

     “Redemption Date,” when used with respect to any Note to be redeemed, in whole or in part,
means the date fixed for such redemption by or pursuant to this Supplemental Indenture.

     “Redemption Price,” when used with respect to any Note to be redeemed, in whole or in part,
means the price at which it is to be redeemed pursuant to this Supplemental Indenture.

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     “Refinance” means, in respect of any Debt, to refinance, extend, renew, refund or Repay, or to
issue other Debt, in exchange or replacement for, such Debt. “Refinanced” and “Refinancing” shall
have correlative meanings.

     “Repay” means, in respect of any Debt, to repay, prepay, repurchase, redeem, legally defease
or otherwise retire such Debt. “Repayment” and “Repaid” shall have correlative meanings. For
purposes of the covenant described under Section 4.09 of this Supplemental Indenture and the
definition of “Consolidated Interest Coverage Ratio,” Debt shall be considered to have been Repaid
only to the extent the related loan commitment, if any, shall have been permanently reduced in
connection therewith.

     “Restricted Payment” means:

     (a) any dividend or distribution (whether made in cash, securities or other Property)
declared or paid, on or with respect to any shares of Capital Stock of Arch Coal or any
Restricted Subsidiary (including any payment in connection with any merger or consolidation
with or into Arch Coal or any Restricted Subsidiary), except for any dividend or distribution
that is (i) made solely to Arch Coal or a Restricted Subsidiary (and, if such Restricted
Subsidiary is not a Wholly Owned Restricted Subsidiary, to the other shareholders or members
of such Restricted Subsidiary on a pro rata basis or on a basis that results in the receipt by
Arch Coal or a Restricted Subsidiary of dividends or distributions equal to or greater in
value than it would receive on a pro rata basis); or (ii) payable solely in shares of Capital
Stock (other than Disqualified Stock) of Arch Coal;

     (b) the purchase, repurchase, redemption, acquisition or retirement for value of any
Capital Stock of Arch Coal (other than from Arch Coal or a Restricted Subsidiary);

     (c) the purchase, repurchase, redemption, acquisition or retirement for value, prior
to the date for any scheduled maturity, sinking fund or amortization or other installment
payment, of any Subordinated Obligation (other than (i) Debt permitted under clause (g) of the
second paragraph of the covenant described in Section 4.06 of this Supplemental Indenture or
(ii) the purchase, repurchase or other acquisition of any Subordinated Obligation purchased in
anticipation of satisfying a scheduled maturity, sinking fund or amortization or other
installment obligation, in each case due within one year of the date of acquisition);

     (d) any Investment (other than Permitted Investments) in any Person; or

     (e) the issuance, sale or other disposition of Capital Stock of any Restricted
Subsidiary to a Person other than Arch Coal or another Restricted Subsidiary if the result
thereof is that such Restricted Subsidiary shall cease to be a Restricted Subsidiary, in which
event the amount of such “Restricted Payment” shall be the Fair Market Value of the remaining
interest, if any, in such former Restricted Subsidiary held by Arch Coal and the other
Restricted Subsidiaries.

     “Restricted Subsidiary” means any Subsidiary of Arch Coal other than an Unrestricted
Subsidiary.

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     “S&P” means Standard & Poor’s Ratings Services or any successor to the rating agency business
thereof.

     “Sale and Leaseback Transaction” means any direct or indirect arrangement relating to Property
now owned or hereafter acquired whereby Arch Coal or a Restricted Subsidiary transfers such
Property to another Person and Arch Coal or a Restricted Subsidiary leases it from such Person.

     “Securities Act” means the Securities Act of 1933, as amended.

     “Significant Subsidiary” means any Subsidiary that would be a “significant subsidiary” of Arch
Coal within the meaning of Rule 1-02 under Regulation S-X promulgated by the Commission.

     “Standard Securitization Undertakings” means representations, warranties, covenants and
indemnities entered into by Arch Coal or any Restricted Subsidiary that are reasonably customary in
receivables financing facilities, including, without limitation, servicing of the obligations
thereunder.

     “Stated Maturity” means, with respect to any security, the date specified in such security as
the fixed date on which the payment of principal of such security is due and payable, including
pursuant to any mandatory redemption provision (but excluding any provision providing for the
repurchase of such security at the option of the holder thereof upon the happening of any
contingency beyond the control of the issuer unless such contingency has occurred).

     “Subordinated Obligation” means any Debt of Arch Coal or a Guarantor (whether outstanding on
the Issue Date or thereafter Incurred) that is subordinate or junior in right of payment to the
Notes or the Note Guarantees pursuant to a written agreement to that effect.

     “Subsidiary” means, in respect of any Person, any corporation, company (including any limited
liability company), association, partnership, joint venture or other business entity of which at
least a majority of the total voting power of the Voting Stock is at the time owned or controlled,
directly or indirectly, by:

          (a) such Person;

          (b) such Person and one or more Subsidiaries of such Person; or

          (c) one or more Subsidiaries of such Person.

     “Surviving Person” means the surviving Person formed by a merger, consolidation or
amalgamation and, for purposes of the covenant described under Section 5.01 of this Supplemental
Indenture, a Person to whom all or substantially all of the Property of Arch Coal or a Guarantor is
sold, transferred, assigned, leased, conveyed or otherwise disposed.

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     “Tax Amount” means the portion of the Hypothetical Income Tax Amount (as defined in the LLC
Agreement as in effect on the Issue Date) allocated to the members of Arch Western, other than Arch
Coal or any of its Affiliates.

     “Tax Distribution” means a distribution in respect of taxes pursuant to clause (e) of the
second paragraph of Section 4.08 of this Supplemental Indenture.

     “TIA” means the United States Trust Indenture Act of 1939 as in effect on the date hereof;
provided, however, that in the event the Trust Indenture Act of 1939 is amended after such date,
“TIA” means, to the extent required by any such amendment, the Trust Indenture Act of 1939, as so
amended.

     “Treasury Rate” means, as of any redemption date, the yield to maturity as of such redemption
date of United States Treasury securities with a constant maturity (as compiled and published in
the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available
at least two business days prior to the redemption date (or, if such Statistical Release is no
longer published, any publicly available source of similar market data)) most nearly equal to the
period from the redemption date to October 1, 2015; provided, however, that if the period from the
redemption date to October 1, 2015 is less than one year, the weekly average yield on actually
traded United States Treasury securities adjusted to a constant maturity of one year will be used.

     “Trustee” means the party named as such in this Supplemental Indenture until a successor
replaces it in accordance with the provisions of this Supplemental Indenture and, thereafter, means
the successor.

     “Trust Officer” means, when used with respect to the Trustee, any vice president, assistant
vice president, assistant treasurer or trust officer within the Corporate Trust Department of the
Trustee (or any successor unit, department or division of the Trustee) located at the Corporate
Trust Office of the Trustee who has direct responsibility for the administration of this
Supplemental Indenture and, for the purposes of Sections 7.01(c)(2) and the second sentence of
Section 6.01(b) of this Supplemental Indenture, shall also include any other officer of the Trustee
to whom any corporate trust matter is referred because of his or her knowledge of and familiarity
with the particular subject.

     “Underwriters” means Banc of America Securities LLC, Citigroup Global Markets Inc., Morgan
Stanley & Co. Incorporated, J.P. Morgan Securities Inc., PNC Capital Markets LLC, BMO Capital
Markets Corp., Credit Agricole Securities (USA) Inc., RBS Securities Inc., U.S. Bancorp
Investments, Inc., Barclays Capital Inc., FBR Capital Markets & Co., Raymond James & Associates,
Inc., Simmons & Company International, Stifel, Nicolaus & Company, Incorporated, UBS Securities
LLC, Mitsubishi UFJ Securities (USA), Inc., Morgan Keegan & Company, Inc., Natixis Bleichroeder LLC
and Santander Investment Securities Inc.

     “Unrestricted Subsidiary” means:

     (a) any Subsidiary of Arch Coal that is designated after the Issue Date as an
Unrestricted Subsidiary as permitted or required pursuant to the covenant described

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under Section 4.15 of this Supplemental Indenture and is not thereafter redesignated as a
Restricted Subsidiary as permitted pursuant thereto;

     (b) Jacobs Ranch Holdings I LLC, a Delaware limited liability company, Jacobs Ranch
Holdings II LLC, a Delaware limited liability company, and Jacobs Ranch Coal LLC, a Delaware
limited liability company; and

     (c) any Subsidiary of an Unrestricted Subsidiary.

After the termination of the covenants upon the Notes obtaining Investment Grade Ratings, pursuant
to Section 4.21 of this Supplemental Indenture, all Unrestricted Subsidiaries shall be Restricted
Subsidiaries.

     “U.S. Government Obligations” means direct obligations (or certificates representing an
ownership interest in such obligations) of the United States of America (including any agency or
instrumentality thereof) for the payment of which the full faith and credit of the United States of
America is pledged and which are not callable or redeemable at the issuer’s option.

     “Voting Stock” of any Person means all classes of Capital Stock or other interests (including
partnership interests) of such Person then outstanding and normally entitled (without regard to the
occurrence of any contingency) to vote in the election of directors, managers or trustees thereof.

     “Wholly Owned Restricted Subsidiary” of a Person means, at any time, a Restricted Subsidiary
all the Voting Stock of which (except directors’ qualifying shares) is at such time owned, directly
or indirectly, by such Person and its other Wholly Owned Subsidiaries.

     SECTION 1.02. Other Definitions.

	 	 	 
	Term	 	Defined in Section 
[To be updated]
	“Additional Notes”
	 	Recitals
	“Affiliate Transaction”
	 	4.10
	“Allocable Excess Proceeds”
	 	4.09
	“Base Indenture”
	 	Recitals
	“Change of Control Offer”
	 	4.11
	“Change of Control Purchase Price”
	 	4.11
	“Defaulted Interest”
	 	2.12
	“Event of Default”
	 	6.01
	“Excess Proceeds”
	 	4.09(b)
	“Global Notes”
	 	2.01(c)
	“Indenture”
	 	Recitals
	“incorporated provision”
	 	12.01
	“Notice of Default”
	 	6.01(a)(4)
	“Obligations”
	 	10.01(a)
	“Original Notes”
	 	Recitals
	“Notes”
	 	Recitals
	“Participants”
	 	2.01(d)
	 
	 	 

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	Term	 	Defined in Section 
[To be updated]
	“Paying Agent”
	 	2.03
	“Permitted Debt”
	 	4.06
	“Prepayment Offer
	 	4.09
	“Registrar”
	 	2.03
	“Security Register”
	 	2.03
	“Transfer Agent”
	 	2.03

     SECTION 1.03. Incorporation by Reference of Trust Indenture Act. Whenever this
Supplemental Indenture refers to a provision of the TIA, the provision is incorporated by reference
in and made a part of this Supplemental Indenture. The following TIA terms have the following
meanings as used in this Supplemental Indenture:

     “Commission” means the SEC.

     “indenture securities” means the Notes.

     “indenture securities holder” means a Holder.

     “indenture to be qualified” means this Supplemental Indenture.

     “indenture trustee” or “institutional trustee” means the Trustee.

     “obligor” on the “indenture securities” means Arch Coal and the Guarantors.

     All other TIA terms used in this Supplemental Indenture that are defined by the TIA, defined
by TIA reference to another statute or defined by the Commission rule under the TIA have the
meanings assigned to them by such definitions. All other capitalized terms used herein and not
otherwise defined will have the meanings provided in the Base Indenture.

          SECTION 1.04. Rules of Construction. (a) Unless the context otherwise requires:

     (i) a term has the meaning assigned to it;

     (ii) an accounting term not otherwise defined has the meaning assigned to it
in accordance with GAAP;

     (iii) “or” is not exclusive;

     (iv) “including” or “include” means including or include without
limitation;

     (v) words in the singular include the plural and words in the
plural include the singular;

     (vi) the words “herein,” “hereof” and “hereunder” and other words of similar
import refer to this Supplemental Indenture as a whole and not to any particular
Article, Section, clause or other subdivision

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     (vii) unless otherwise specified herein, all accounting terms used
herein shall be interpreted, all accounting determinations hereunder shall be
made, and all financial statements required to be delivered hereunder shall be
prepared in accordance with GAAP as in effect from time to time, applied on a
basis consistent with the most recent audited consolidated financial statements of
the Company;

     (viii) “$,” “U.S. Dollars” and “United States Dollars” each refer to United
States dollars, or such other money of the United States that at the time of
payment is legal tender for payment of public and private debts; and

     (ix) all references to a “Section” refer to a section of this Supplemental
Indenture.

          SECTION 1.05. Relationship with Base Indenture. Notwithstanding any other provision
of this Supplemental Indenture, all provisions of this Supplemental Indenture are expressly and
solely for the benefit of the Holders of the Notes and any such provisions shall not be deemed to
apply to any other securities issued under the Base Indenture and shall not be deemed to amend,
modify or supplement the Base Indenture for any purpose other than with respect to the Notes. The
terms and provisions contained in the Base Indenture will constitute, and are hereby expressly
made, a part of this Supplemental Indenture and the Company, the Guarantors and the Trustee, by
their execution and delivery of this Supplemental Indenture, expressly agree to such terms and
provisions and to be bound thereby. However, to the extent any provision of the Base Indenture
conflicts with the express provisions of this Supplemental Indenture, the provisions of this
Supplemental Indenture will govern and be controlling. Unless otherwise expressly specified,
references in this Supplemental Indenture to specific Article numbers or Section numbers refer to
Articles and Sections contained in this Supplemental Indenture as they amend or supplement the Base
Indenture, and not the Base Indenture or any other document. All Original Notes and Additional
Notes, if any, will each be treated as a single class for all purposes of this Supplemental
Indenture, including waivers, amendments, redemptions and offers to purchase.

ARTICLE TWO

THE NOTES

          SECTION 2.01. The Notes. (a) The Trustee shall initially authenticate Notes for
original issue on the Issue Date in an aggregate principal amount of $500,000,000 upon a written
order of Arch Coal in the form of an Officers’ Certificate of the Company (other than as provided
in Section 2.07). The Company may, as long as permitted under this Supplemental Indenture, issue
and the Trustee shall authenticate Additional Notes after the Issue Date in unlimited amount for
original issue upon a written order of the Company in the form of an Officers’ Certificate in
aggregate principal amount as specified in such order. Each such written order shall specify the
amount of Notes to be authenticated and the date on which such Notes are to be authenticated.

     The terms and provisions contained in the Notes will constitute, and are hereby expressly
made, a part of the Indenture and the Company, the Guarantors and the Trustee, by their

32

 

execution and delivery of this Supplemental Indenture, expressly agree to such terms and
provisions and to be bound thereby. However, to the extent any provision of any Note conflicts
with the express provisions of the Base Indenture, the provisions of the Note will govern and be
controlling, and to the extent any provision of the Note conflicts with the express provisions of
this Supplemental Indenture, the provisions of this Supplemental Indenture will govern and be
controlling.

     (b) Form and Dating. The Notes and the Trustee’s certificate of authentication
shall be substantially in the form of Exhibit A hereto with such appropriate insertions,
omissions, substitutions and other variations as are required or permitted by this
Supplemental Indenture. The Notes may have notations, legends or endorsements required by
law, the rules of any securities exchange or usage. Arch Coal shall approve the form of the
Notes. Each Note shall be dated the date of its authentication. The terms and provisions
contained in the form of the Notes shall constitute and are hereby expressly made a part of
this Supplemental Indenture. The Notes shall be issued only in registered form without
coupons and only in minimum denominations of $2,000 in principal amount and any integral
multiples of $1,000 in excess thereof.

     (c) Global Notes. Notes offered and sold as provided in the Underwriting
Agreement shall be issued initially in the form of one or more Global Notes substantially in
the form of Exhibit A hereto, with such applicable legends as are provided in Exhibit A hereto
(the “Global Notes”), which shall be deposited on behalf of the purchasers of the
Notes represented thereby with the Depositary, and registered in the name of the Depositary or
its nominee, as the case may be, duly executed by Arch Coal and authenticated by the Trustee
(or its agent in accordance with Section 2.02) as hereinafter provided. The aggregate
principal amount of the Global Note may from time to time be increased or decreased by
adjustments made by the Registrar on Schedule A to the Global Note and recorded in the
Security Register, as hereinafter provided.

     (d) Book-Entry Provisions. This Section 2.01(d) shall apply to the Global Note
deposited with or on behalf of the Depositary.

     Members of, or participants and account holders in, DTC (“Participants”) shall have no rights
under this Supplemental Indenture with respect to any Global Note held on their behalf by the
Depositary, or by the Trustee or any custodian of the Depositary or under such Global Note, and the
Depositary or its nominee may be treated by Arch Coal, a Guarantor, the Trustee and any agent of
Arch Coal, a Guarantor or the Trustee as the sole owner of such Global Note for all purposes
whatsoever. Notwithstanding the foregoing, nothing herein shall prevent Arch Coal, a Guarantor,
the Trustee or any agent of Arch Coal, a Guarantor or the Trustee from giving effect to any written
certification, proxy or other authorization furnished by the Depositary or impair, as between the
Depositary and their Participants, the operation of customary practices of such persons governing
the exercise of the rights of a Holder of a beneficial interest in any Global Note.

     Subject to the provisions of Section 2.10(b), the registered Holder of a Global Note may grant
proxies and otherwise authorize any Person, including Participants and Persons that may

33

 

hold interests through Participants, to take any action that a Holder is entitled to take
under this Supplemental Indenture or the Notes.

     Except as provided in Section 2.10, owners of a beneficial interest in Global Notes will not
be entitled to receive physical delivery of certificated Notes.

          SECTION 2.02. Execution and Authentication. An authorized officer shall sign the
Notes for Arch Coal by manual or facsimile signature.

     If an authorized officer whose signature is on a Note no longer holds that office at the time
the Trustee authenticates the Note, the Note shall be valid nevertheless.

     A Note shall not be valid or obligatory for any purpose until an authorized signatory of the
Trustee manually signs the certificate of authentication on the Note. The signature shall be
conclusive evidence that the Note has been authenticated under this Supplemental Indenture.

     Pursuant to an Issuer Order, Arch Coal shall execute and the Trustee shall authenticate (a)
Original Notes for original issue up to an aggregate principal amount of $500,000,000, and (b)
Additional Notes subject to compliance at the time of issuance of such Additional Notes with the
provisions of this Supplemental Indenture in an unlimited amount.

     The Trustee may appoint an authenticating agent reasonably acceptable to Arch Coal to
authenticate the Notes. Unless limited by the terms of such appointment, any such authenticating
agent may authenticate Notes whenever the Trustee may do so. Each reference in this Supplemental
Indenture to authentication by the Trustee includes authentication by any such agent. An
authenticating agent has the same rights as any Registrar, co-Registrar Transfer Agent or Paying
Agent to deal with Arch Coal or an Affiliate of Arch Coal.

     The Trustee shall have the right to decline to authenticate and deliver any Notes under this
Section 2.02 if the Trustee, being advised by counsel, determines that such action may not lawfully
be taken or if the Trustee in good faith shall determine that such action would expose the Trustee
to personal liability to existing Holders.

          SECTION 2.03. Registrar, Transfer Agent and Paying Agent. Arch Coal shall maintain an
office or agency for the registration of the Notes and of their transfer or exchange (the
“Registrar”), an office or agency where Notes may be transferred or exchanged (the
“Transfer Agent”), an office or agency where the Notes may be presented for payment (the
“Paying Agent”) and an office or agency where notices or demands to or upon Arch Coal in
respect of the Notes may be served. Arch Coal may appoint one or more Transfer Agents, one or more
co-Registrars and one or more additional Paying Agents.

     Arch Coal or any its Affiliates may act as Transfer Agent, Registrar, co-Registrar, Paying
Agent and agent for service of notices and demands in connection with the Notes; provided, however,
that neither Arch Coal nor any of its Affiliates shall act as Paying Agent for the purposes of
Articles Three and Eight and Sections 4.09 and 4.11.

     Arch Coal hereby initially appoints the Trustee, at the address set forth in Section 12.02(a)
as Registrar and as Transfer Agent and Paying Agent.

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     Subject to any applicable laws and regulations, Arch Coal shall cause the Registrar to keep a
register (the “Security Register”) at its corporate trust office in which, subject to such
reasonable regulations it may prescribe, Arch Coal shall provide for the registration of ownership,
exchange, and transfer of the Notes. Such registration in the Security Register shall be
conclusive evidence of the ownership of Notes. Included in the books and records for the Notes
shall be notations as to whether such Notes have been paid, exchanged or transferred, canceled,
lost, stolen, mutilated or destroyed and whether such Notes have been replaced. In the case of the
replacement of any of the Notes, the Registrar shall keep a record of the Note so replaced and the
Note issued in replacement thereof. In the case of the cancellation of any of the Notes, the
Registrar shall keep a record of the Note so canceled and the date on which such Note was canceled.

          SECTION 2.04. Paying Agent to Hold Money in Trust. Not later than 10:00 am (Central
time) on each due date of the principal, premium, if any, and interest on any Notes, Arch Coal
shall deposit with the Paying Agent money in immediately available funds sufficient to pay such
principal, premium, if any, and interest so becoming due on the due date for payment under the
Notes. Arch Coal shall require each Paying Agent other than the Trustee to agree in writing that
such Paying Agent shall hold in trust for the benefit of the Holders or the Trustee all money held
by the Paying Agent for the payment of principal of, premium, if any, and interest on the Notes
(whether such money has been paid to it by Arch Coal or any other obligor on the Notes), and such
Paying Agent shall promptly notify the Trustee of any default by Arch Coal (or any other obligor on
the Notes) in making any such payment. Arch Coal at any time may require a Paying Agent to pay all
money held by it to the Trustee and account for any funds disbursed, and the Trustee may at any
time during the continuance of any payment default, upon written request to a Paying Agent, require
such Paying Agent to pay all money held by it to the Trustee and to account for any funds
disbursed. Upon doing so, the Paying Agent shall have no further liability for the money so paid
over to the Trustee. If Arch Coal or any Affiliate of Arch Coal acts as Paying Agent, it will, on
or before each due date of any principal, premium, if any, or interest on the Notes, segregate and
hold in a separate trust fund for the benefit of the Holders a sum of money sufficient to pay such
principal, premium, if any, or interest so becoming due until such sum of money shall be paid to
such Holders or otherwise disposed of as provided in this Supplemental Indenture, and will promptly
notify the Trustee of its action or failure to act.

          SECTION 2.05. Holder Lists. The Registrar shall preserve in as current a form as is
reasonably practicable the most recent list available to it of the names and addresses of Holders
and shall otherwise comply with TIA Section 312(a). If the Trustee is not the Registrar, Arch Coal
shall furnish to the Trustee, in writing no later than the Record Date for each Interest Payment
Date and at such other times as the Trustee may request in writing, a list in such form and as of
such Record Date as the Trustee may reasonably require of the names and addresses of Holders,
including the aggregate principal amount of Notes held by each Holder.

          SECTION 2.06. Transfer and Exchange. (a) Where Notes are presented to the
Registrar or a co-Registrar with a request to register a transfer or to exchange them for an equal
principal amount of Notes of other denominations, the Registrar shall register the transfer or make
the exchange in accordance with the requirements of this Section 2.06. To permit registrations of
transfers and exchanges, Arch Coal shall execute and the Trustee shall authenticate and deliver, in
the name of the designated transferee or transferees, one or more new

35

 

Notes, of any authorized denominations and of a like aggregate principal amount, at the
Registrar’s request. No service charge shall be made for any registration of transfer or exchange
of Notes (except as otherwise expressly permitted herein), but Arch Coal may require payment of a
sum sufficient to cover any agency fee or similar charge payable in connection with any such
registration of transfer or exchange of Notes (other than any agency fee or similar charge payable
upon exchanges pursuant to Sections 2.10, 3.08 or 9.05) or in accordance with a Prepayment Offer
pursuant to Section 4.09 or Change of Control Offer pursuant to Section 4.11, not involving a
transfer.

     Upon presentation for exchange or transfer of any Note as permitted by the terms of this
Supplemental Indenture and by any legend appearing on such Note, such Note shall be exchanged or
transferred upon the Security Register and one or more new Notes shall be authenticated and issued
in the name of the Holder (in the case of exchanges only) or the transferee, as the case may be.
No exchange or transfer of a Note shall be effective under this Supplemental Indenture unless and
until such Note has been registered in the name of such Person in the Security Register.
Furthermore, the exchange or transfer of any Note shall not be effective under this Supplemental
Indenture unless the request for such exchange or transfer is made by the Holder or by a duly
authorized attorney-in-fact at the office of the Registrar.

     Every Note presented or surrendered for registration of transfer or for exchange shall (if so
required by Arch Coal or the Registrar) be duly endorsed, or be accompanied by a written instrument
or transfer, in form satisfactory to Arch Coal and the Registrar, duly executed by the Holder
thereof or his attorney duly authorized in writing.

     All Notes issued upon any registration of transfer or exchange of Notes shall be the valid
obligations of Arch Coal evidencing the same indebtedness, and entitled to the same benefits under
this Supplemental Indenture, as the Notes surrendered upon such registration of transfer or
exchange.

     Arch Coal shall not be required (i) to issue, register the transfer of, or exchange any Note
during a period beginning at the opening of 15 Business Days before the day of the mailing of a
notice of redemption of Notes selected for redemption under Section 3.02 and ending at the close of
business on the day of such mailing, or (ii) to register the transfer of or exchange any Note so
selected for redemption in whole or in part, except the unredeemed portion of any Note being
redeemed in part.

          SECTION 2.07. Replacement Notes. If a mutilated certificated Note is surrendered to
the Registrar or if the Holder claims that the Note has been lost, destroyed or wrongfully taken,
Arch Coal shall issue and the Trustee shall authenticate a replacement Note in such form as the
Note mutilated, lost, destroyed or wrongfully taken if the Holder satisfies any other reasonable
requirements of the Trustee or Arch Coal. If required by the Trustee or Arch Coal, such Holder
shall furnish an indemnity or indemnity bond sufficient in the judgment of Arch Coal and the
Trustee to protect Arch Coal, the Trustee, the Paying Agent, the Transfer Agent, the Registrar and
any co-Registrar, and any authenticating agent from any loss that any of them may suffer if a Note
is replaced. Arch Coal and the Trustee may charge the Holder for their expenses in replacing a
Note.

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     Every replacement Note shall be an additional obligation of Arch Coal.

          SECTION 2.08. Outstanding Notes. Notes outstanding at any time are all Notes
authenticated by the Trustee except for those cancelled by it, those delivered to it for
cancellation and those described in this Section 2.08 as not outstanding. A Note does not cease to
be outstanding because Arch Coal or an Affiliate of Arch Coal holds the Note.

     If a Note is replaced pursuant to Section 2.07, it ceases to be outstanding unless the Trustee
and Arch Coal receive proof satisfactory to them that the Note which has been replaced is held by a
bona fide purchaser.

     If the Paying Agent segregates and holds in trust, in accordance with this Supplemental
Indenture, on a Redemption Date or maturity date money sufficient to pay all principal, premium, if
any, interest payable on that date with respect to the Notes (or portions thereof) to be redeemed
or maturing, as the case may be, and the Paying Agent is not prohibited from paying such money to
the Holders on that date pursuant to the terms of this Supplemental Indenture, then on and after
that date such Notes (or portions thereof) cease to be outstanding and interest on them ceases to
accrue.

          SECTION 2.09. Notes Held by Arch Coal. In determining whether the Holders of the
required principal amount of Notes have concurred in any direction or consent or any amendment,
modification or other change to this Supplemental Indenture, Notes owned by Arch Coal or by an
Affiliate of Arch Coal shall be disregarded and treated as if they were not outstanding, except
that for the purposes of determining whether the Trustee shall be protected in relying on any such
direction, waiver or consent or any amendment, modification or other change to this Supplemental
Indenture, only Notes which a Trust Officer of the Trustee actually knows are so owned shall be so
disregarded. Notes so owned which have been pledged in good faith shall not be disregarded if the
pledgee establishes to the satisfaction of the Trustee the pledgee’s right so to act with respect
to the Notes and that the pledgee is not Arch Coal or an Affiliate of Arch Coal.

          SECTION 2.10. Certificated Notes. (a) A Global Note deposited with the Depositary
or other custodian for the Depositary pursuant to Section 2.01 shall be transferred to the
beneficial owners thereof in the form of certificated Notes only if such transfer complies with
Section 2.06 and (i) the Depositary notifies Arch Coal that it is unwilling or unable to continue
as the Depositary for such Global Note, or if at any time the Depositary ceases to be a “clearing
agency” registered under the Exchange Act and a successor depositary is not appointed by Arch Coal
within 90 days of such notice or becoming aware of that DTC is no longer so registered or willing
or able to act as a depositary, or (ii) Arch Coal, at its option, executes and delivers to the
Trustee a notice that such Global Note be so transferable, registrable and exchangeable, or (iii)
an Event of Default, or an event which after notice or lapse of time or both would be an Event of
Default, has occurred and is continuing with respect to the Notes or (iv) the issuance of such
certificated Notes is necessary in order for a Holder or beneficial owner to present its Note or
Notes to a Paying Agent in order to avoid any tax that is imposed on or with respect to a payment
made to such Holder or beneficial owner. Notice of any such transfer shall be given by Arch Coal
in accordance with the provisions of Section 12.02(a).

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     Upon the occurrence of any of the preceding events in (i) or (ii) above, Arch Coal will notify
the Trustee in writing that, upon surrender by the Participants of their interest in such Global
Notes, definitive Securities will be issued to each Person that such Participants and the
Depositary identify as being the beneficial owner of the related Securities. Global Notes also may
be exchanged or replaced, in whole or in part, as provided in Section 305 of the Base Indenture and
Sections 2.06 and 2.07 hereof. Except as otherwise provided above in this Section 2.10, every Note
authenticated and delivered in exchange for, or in lieu of, a Global Note or any portion thereof,
pursuant to this Section 2.10, Sections 2.06 or 2.07 hereof or Section 305 of the Base Indenture,
shall be authenticated and delivered in the form of, and shall be, a Global Note. A Global Note
may not be exchanged for another Security other than as provided in this Section 2.10.

     (b) Any Global Note that is transferable to the beneficial owners thereof in the form of
certificated Notes pursuant to this Section 2.10 shall be surrendered by the Depositary to the
Transfer Agent, to be so transferred, in whole or from time to time in part, without charge,
and the Trustee shall authenticate and deliver, upon such transfer of each portion of such
Global Note, an equal aggregate principal amount at maturity of Notes of authorized
denominations in the form of certificated Notes. Any portion of a Global Note transferred or
exchanged pursuant to this Section 2.10 shall be executed, authenticated and delivered only in
registered form in denominations of $2,000 and any integral multiples of $1,000 in excess
thereof and registered in such names as the Depositary shall direct. Subject to the
foregoing, a Global Note is not exchangeable except for a Global Note of like denomination to
be registered in the name of the Depositary or its nominee. In the event that a Global Note
becomes exchangeable for certificated Notes, payment of principal, premium, if any, and
interest on the certificated Notes will be payable, and the transfer of the certificated Notes
will be registrable, at the office or agency of Arch Coal maintained for such purposes in
accordance with Section 2.03.

     (c) In the event of the occurrence of any of the events specified in Section 2.10, Arch
Coal will promptly make available to the Trustee a reasonable supply of certificated Notes in
definitive, fully registered form without interest coupons.

          SECTION 2.11. Cancellation. Arch Coal at any time may deliver Notes to the Trustee
for cancellation. The Registrar and the Paying Agent shall forward to the Trustee any Notes
surrendered to them for registration of transfer, exchange or payment. The Trustee, in accordance
with its customary procedures, and no one else shall cancel (subject to the record retention
requirements of the Exchange Act and the Trustee’s retention policy) all Notes surrendered for
registration of transfer, exchange, payment or cancellation and dispose of such cancelled Notes in
its customary manner. Except as otherwise provided in this Supplemental Indenture Arch Coal may
not issue new Notes to replace Notes it has redeemed, paid or delivered to the Trustee for
cancellation.

          SECTION 2.12. Defaulted Interest. Any interest on any Note that is payable, but is
not punctually paid or duly provided for, on the dates and in the manner provided in the Notes and
this Supplemental Indenture (all such interest herein called “Defaulted Interest”) shall
forthwith cease to be payable to the Holder on the relevant Record Date by virtue of having

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been such Holder, and such Defaulted Interest may be paid by Arch Coal, at its election in
each case, as provided in clause (a) or (b) below:

     (a) Arch Coal may elect to make payment of any Defaulted Interest to the Persons in whose
names the Notes are registered at the close of business on a special Record Date for the
payment of such Defaulted Interest, which shall be fixed in the following manner. Arch Coal
shall notify the Trustee in writing of the amount of Defaulted Interest proposed to be paid on
each Note and the date of the proposed payment, and at the same time Arch Coal may deposit
with the Trustee an amount of money equal to the aggregate amount proposed to be paid in
respect of such Defaulted Interest; or shall make arrangements satisfactory to the Trustee for
such deposit prior to the date of the proposed payment, such money when deposited to be held
in trust for the benefit of the Persons entitled to such Defaulted Interest as in this clause
provided. In addition, Arch Coal shall fix a special Record Date for the payment of such
Defaulted Interest, such date to be not more than 15 days and not less than 10 days prior to
the proposed payment date and not less than 15 days after the receipt by the Trustee of the
notice of the proposed payment date. Arch Coal shall promptly but, in any event, not less
than 15 days prior to the special Record Date, notify the Trustee of such special Record Date
and, in the name and at the expense of Arch Coal, the Trustee shall cause notice of the
proposed payment date of such Defaulted Interest and the special Record Date therefor to be
mailed first-class, postage prepaid to each Holder as such Holder’s address appears in the
Security Register, not less than 10 days prior to such special Record Date. Notice of the
proposed payment date of such Defaulted Interest and the special Record Date therefor having
been so mailed, such Defaulted Interest shall be paid to the Persons in whose names the Notes
are registered at the close of business on such special Record Date and shall no longer be
payable pursuant to clause (b) below.

     (b) Arch Coal may make payment of any Defaulted Interest on the Notes in any other lawful
manner not inconsistent with the requirements of any securities exchange on which the Notes
may be listed, and upon such notice as may be required by such exchange, if, after notice
given by Arch Coal to the Trustee of the proposed payment date pursuant to this clause, such
manner of payment shall be deemed reasonably practicable.

     Subject to the foregoing provisions of this Section 2.12, each Note delivered under this
Supplemental Indenture upon registration of transfer of or in exchange for or in lieu of any other
Note shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by
such other Note.

          SECTION 2.13. Computation of Interest. Interest on the Notes shall be computed on the
basis of a 360-day year comprised of twelve 30-day months.

          SECTION 2.14. CUSIP, ISIN and Common Code Numbers. Arch Coal in issuing the Notes may
use CUSIP, ISIN and Common Code numbers (if then generally in use), and, if so, the Trustee shall
use CUSIP, ISIN and Common Code numbers, as appropriate, in notices of redemption as a convenience
to Holders; provided, however, that any such notice may state that no representation is made as to
the correctness of such numbers or codes either as printed on the Notes or as contained in any
notice of a redemption and that reliance may be placed only on the other identification numbers
printed on the Notes, and any such redemption

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shall not be affected by any defect in or omission of such numbers. Arch Coal will promptly
notify the Trustee of any change in the CUSIP, ISIN or Common Code numbers.

          SECTION 2.15. Issuance of Additional Notes. Arch Coal may, subject to Section 4.06 of
this Supplemental Indenture, issue Additional Notes under this Supplemental Indenture in accordance
with the procedures of Section 2.02. The Original Notes issued on the date of this Supplemental
Indenture and any Additional Notes subsequently issued shall be treated as a single class for all
purposes under this Supplemental Indenture.

ARTICLE THREE

REDEMPTION; OFFERS TO PURCHASE

          SECTION 3.01. Optional Redemption. Except as set forth in the next two paragraphs,
the Notes will not be redeemable at the option of Arch Coal prior to October 1, 2015. Starting on
that date, Arch Coal may redeem all or any portion of the Notes, at once or over time, after giving
the required notice under this Supplemental Indenture. The Notes may be redeemed at the redemption
prices set forth below, plus accrued and unpaid interest to the redemption date (subject to the
right of Holders of record on the relevant Record Date to receive interest, if any, due on the
relevant interest payment date). The following prices are for Notes redeemed during the 12-month
period commencing on October 1 of the years set forth below, and are expressed as percentages of
principal amount:

	 	 	 	 	 
	 	 	Redemption
	Year	 	Price
	2015
	 	 	103.625	%
	2016
	 	 	102.417	%
	2017
	 	 	101.208	%
	2018 and thereafter
	 	 	100.000	%

     In addition, at any time and from time to time, prior to October 1, 2013, on one or more
occasions, Arch Coal may redeem an aggregate principal amount of Notes not to exceed 35% of the
original aggregate principal amount of the Notes (calculated giving effect to any issuance of
Additional Notes) with the proceeds of one or more Public Equity Offerings, at a redemption price
equal to 107.250% of the principal amount thereof, plus accrued and unpaid interest to the
redemption date (subject to the right of Holders of record on the relevant Record Date to receive
interest due on the relevant interest payment date); provided, however, that after giving effect to
any such redemption, at least 65% of the original aggregate principal amount of the Notes
(calculated giving effect to any issuance of Additional Notes) remains outstanding immediately
after the occurrence of such redemption (excluding Notes held by Arch Coal or any of its
Subsidiaries). Any such redemption shall be made within 90 days after the date of the closing of
such Public Equity Offering upon not less than 30 nor more than 60 days’ prior notice.

     At any time prior to October 1, 2015, Arch Coal may, at its option, on one or more occasions
redeem all or a part of the Notes, upon not less than 30 nor more than 60 days’ prior notice, at a
redemption price equal to 100% of the principal amount of the Notes redeemed plus the Applicable
Premium as of the date of redemption, and, without duplication, accrued and

40

 

unpaid interest, if any, to the redemption date (subject to the rights of Holders of record on
the relevant record date to receive interest due on the relevant interest payment date).

     Any redemption pursuant to this Section 3.01 shall be made pursuant to the provisions of this
Article Three.

     The Company is not required to make mandatory redemption or sinking fund payments with respect
to the Notes.

          SECTION 3.02. Notices to Trustee. If Arch Coal elects to redeem Notes pursuant to
Section 3.01, it shall notify the Trustee in writing of the Redemption Date, the principal amount
of Notes to be redeemed and the paragraph of the Notes pursuant to which the redemption will occur.

     Arch Coal shall give each notice to the Trustee provided for in this Section 3.02 in writing
at least 45 days before the date notice is mailed to the Holders pursuant to Section 3.04 unless
the Trustee consents to a shorter period. Such notice shall be accompanied by an Officers’
Certificate from Arch Coal to the effect that such redemption will comply with the conditions
herein. If fewer than all the Notes are to be redeemed, the Record Date relating to such
redemption shall be selected by Arch Coal and given to the Trustee, which Record Date shall be not
less than 15 days after the date of notice to the Trustee.

     Except as otherwise provided herein, no notice or communication to the Trustee shall be deemed
effectively given unless it is actually received by a Trust Officer at its Corporate Trust Office.

          SECTION 3.03. Selection of Notes to be Redeemed. If less than all of the Notes are to
be redeemed, the Trustee shall select the Notes to be redeemed in compliance with the requirements,
as certified to it by Arch Coal, of the principal national securities exchange or automated
quotation system, if any, on which the Notes are listed or, if the Notes are not listed on a
national securities exchange or automated quotation system, by lot or by such other method as the
Trustee in its sole discretion shall deem fair and appropriate; provided, however, that no such
partial redemption shall reduce the portion of the principal amount of a Note not redeemed to less
than $2,000.

     The Trustee shall make the selection from the Notes outstanding and not previously called for
redemption. The Trustee may select for redemption portions equal to $2,000 in principal amount or
any integral multiple of $1,000. Provisions of this Supplemental Indenture that apply to Notes
called for redemption also apply to portions of Notes called for redemption. The Trustee shall
notify Arch Coal and the Registrar promptly in writing of the Notes or portions of Notes to be
called for redemption.

          SECTION 3.04. Notice of Redemption. (a) At least 30 days but not more than 60 days
before a date for redemption of Notes, Arch Coal shall deliver a notice of redemption to each
Holder to be redeemed and shall comply with the provisions of Section 12.02(b).

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     (b) The notice shall identify the Notes to be redeemed (including CUSIP, ISIN and Common
Code numbers) and shall state:

     (i) the Redemption Date;

     (ii) the Redemption Price and the amount of accrued interest, if any to be
paid;

     (iii) the name and address of the Paying Agent;

     (iv) that Notes called for redemption must be surrendered to the Paying Agent
to collect the Redemption Price plus accrued interest, if any;

     (v) that, if any Note is being redeemed in part, the portion of the principal
amount (equal to $1,000 in principal amount or any integral multiple thereof) of
such Note to be redeemed and that, on and after the Redemption Date, upon
surrender of such Note, a new Note or Notes in principal amount equal to the
unredeemed portion thereof will be reissued;

     (vi) that, if any Note contains a CUSIP, ISIN or Common Code number, no
representation is being made as to the correctness of such CUSIP, ISIN or Common
Code number either as printed on the Notes or as contained in the notice of
redemption and that reliance may be placed only on the other identification
numbers printed on the Notes;

     (vii) that, unless Arch Coal defaults in making such redemption payment,
interest on the Notes (or portion thereof) called for redemption shall cease to
accrue on and after the Redemption Date; and

     (viii) the paragraph of the Notes pursuant to which the Notes called for
redemption are being redeemed.

     At Arch Coal’s written request, the Trustee may give a notice of redemption in Arch Coal’s
name and at Arch Coal’s expense. In such event, Arch Coal shall provide the Trustee with the
notice and the other information required by this Section 3.04.

          SECTION 3.05. Effect of Notice of Redemption. Once a notice of redemption is mailed,
Notes called for redemption become due and payable on the Redemption Date and at the Redemption
Price stated in the notice. Upon surrender of any Notes to the Paying Agent, such Notes shall be
paid at the Redemption Price stated in the notice, plus accrued interest, if any, to the Redemption
Date. In any event, failure to give such notice, or any defect therein, shall not effect the
validity of the proceedings for the redemption of Notes held by Holders to whom such notice was
properly given.

     Notice of redemption shall be deemed to be given when mailed, whether or not the Holder
receives the notice. In any event, failure to give such notice, or any defect therein, shall not
affect the validity of the proceedings for the redemption of Notes held by Holders to whom such
notice was properly given.

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          SECTION 3.06. Deposit of Redemption Price. On or prior to any Redemption Date, Arch
Coal shall deposit or cause to be deposited with the Paying Agent a sum in same day funds
sufficient to pay the Redemption Price of and accrued interest on all Notes to be redeemed on that
date other than Notes or portions of Notes called for redemption that have previously been
delivered by Arch Coal to the Trustee for cancellation. The Paying Agent shall return to Arch Coal
any money so deposited that is not required for that purpose.

          SECTION 3.07. Payment of Notes Called for Redemption. If notice of redemption has
been given in the manner provided above, the Notes or portion of Notes specified in such notice to
be redeemed shall become due and payable on the Redemption Date at the Redemption Price stated
therein, together with accrued interest to such Redemption Date, and on and after such date (unless
Arch Coal shall default in the payment of such Notes at the Redemption Price and accrued interest
to the Redemption Date, in which case the principal, until paid, shall bear interest from the
Redemption Date at the rate prescribed in the Notes), such Notes shall cease to accrue interest.
Upon surrender of any Note for redemption in accordance with a notice of redemption, such Note
shall be paid and redeemed by Arch Coal at the Redemption Price, together with accrued interest, if
any, to the Redemption Date; provided, however, that installments of interest whose Stated Maturity
is on or prior to the Redemption Date shall be payable to the Holders registered as such at the
close of business on the relevant Record Date.

          SECTION 3.08. Notes Redeemed in Part. (a) Upon surrender of a Global Note that is
redeemed in part, the Paying Agent shall forward such Global Note to the Trustee who shall make a
notation on the Security Register to reduce the principal amount of such Global Note to an amount
equal to the unredeemed portion of the Global Note surrendered; provided, however, that each such
Global Note shall be in a principal amount at final Stated Maturity of $1,000 or an integral
multiple thereof.

     (b) Upon surrender and cancellation of a certificated Note that is redeemed in part, Arch
Coal shall execute and the Trustee shall authenticate for the Holder (at Arch Coal’s expense)
a new Note equal in principal amount to the unredeemed portion of the Note surrendered and
canceled; provided, however, that each such certificated Note shall be in a principal amount
at final Stated Maturity of $1,000 or an integral multiple thereof.

ARTICLE FOUR

COVENANTS

          SECTION 4.01. Payment of Notes. Each of Arch Coal and the Guarantors covenants and
agrees for the benefit of the Holders that it shall duly and punctually pay the principal of,
premium, if any, and interest on the Notes on the dates and in the manner provided in the Notes and
in this Supplemental Indenture. Principal, premium, if any, and interest shall be considered paid
on the date due if on such date the Trustee or the Paying Agent (other than Arch Coal or any of its
Affiliates) holds, in accordance with this Supplemental Indenture, money sufficient to pay all
principal, premium, if any, and interest then due. If Arch Coal or any of its Affiliates acts as
Paying Agent, principal, premium, if any, and interest shall be considered paid on the due date if
the entity acting as Paying Agent complies with Section 2.04.

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     Each of Arch Coal or the Guarantors shall pay interest on overdue principal at the rate
specified therefor in the Notes. Arch Coal or the Guarantors shall pay interest on overdue
installments of interest at the same rate to the extent lawful.

          SECTION 4.02. Corporate Existence. Subject to Article Five, Arch Coal and each
Restricted Subsidiary shall do or cause to be done all things necessary to preserve and keep in
full force and effect their corporate, partnership, limited liability company or other existence
and the rights (charter and statutory), licenses and franchises of Arch Coal and each Restricted
Subsidiary; provided, however, that Arch Coal shall not be required to preserve any such right,
licence or franchise if the Board of Directors of Arch Coal shall determine that the preservation
thereof is no longer desirable in the conduct of the business of Arch Coal and the Restricted
Subsidiaries as a whole and that the loss thereof is not disadvantageous in any material respect to
the Holders.

          SECTION 4.03. Maintenance of Properties. Arch Coal shall cause all properties owned
by it or any of its Subsidiaries or used or held for use in the conduct of its business or the
business of Arch Coal or any of its Subsidiaries to be maintained and kept in good condition,
repair and working order and supplied with all necessary equipment and shall cause to be made all
necessary repairs, renewals, replacements, betterments and improvements thereof, all as, in the
judgment of Arch Coal, may be necessary so that the business carried on in connection therewith may
be properly and advantageously conducted at all times; provided, however, that nothing in this
Section 4.03 shall prevent Arch Coal from discontinuing the maintenance of any such properties if
such discontinuance is, in the judgment of Arch Coal, desirable in the conduct of the business of
Arch Coal and its Subsidiaries as a whole and not disadvantageous in any material respect to the
Holders.

          SECTION 4.04. Insurance. Arch Coal shall maintain, and shall cause its Subsidiaries
to maintain, insurance with carriers believed by Arch Coal to be responsible, against such risks
and in such amounts, and with such deductibles, retentions, self-insured amounts and coinsurance
provisions, as Arch Coal believes are customarily carried by businesses similarly situated and
owning like properties, including as appropriate general liability, property and casualty loss and
interruption of business insurance.

          SECTION 4.05. Statement as to Compliance. (a) Arch Coal shall deliver to the
Trustee, within 90 days after the end of each fiscal year, an Officers’ Certificate stating that in
the course of the performance by the signer of its duties as an officer of Arch Coal he would
normally have knowledge of any Default and whether or not the signer knows of any Default that
occurred during such period and if any specifying such Default, its status and what action Arch
Coal is taking or proposed to take with respect thereto. For purposes of this Section 4.05(a),
such compliance shall be determined without regard to any period of grace or requirement of notice
under this Supplemental Indenture.

          Arch Coal shall comply with TIA Section 314(a)(4). Arch Coal’s delivery to the Trustee of the
reports, information and documents required by said Section 314(a)(4) is for informational purposes
only and the Trustee’s receipt of such shall not constitute constructive notice of any information
contained therein or determinable from information contained therein,

44

 

including Arch Coal’s compliance with any of its covenants hereunder (as to which the Trustee is
entitled to rely exclusively on Officers’ Certificates).

     (b) When any Default has occurred and is continuing under this Supplemental Indenture, or
if the trustee of, or the holder of, any other evidence of Debt of Arch Coal or any Subsidiary
outstanding in a principal amount of $75,000,000 or more gives any notice stating that it is a
Notice of Default or takes any other action to accelerate such Debt or enforce any Note
therefor, Arch Coal shall deliver to the Trustee within five Business Days by registered or
certified mail or facsimile transmission an Officers’ Certificate specifying such event,
notice or other action, its status and what action Arch Coal is taking or proposes to take
with respect thereto.

          SECTION 4.06. Limitation on Debt. Arch Coal shall not, and shall not permit any
Restricted Subsidiary to, Incur, directly or indirectly, any Debt unless, after giving effect to
the application of the proceeds thereof, no Default or Event of Default would occur as a
consequence of such Incurrence or be continuing following such Incurrence and either:

     (1) such Debt is Debt of Arch Coal or a Guarantor, and, after giving effect to
the Incurrence of such Debt and the application of the proceeds thereof, Consolidated
Interest Coverage Ratio of Arch Coal would be at least 2.0 to 1.0, or

     (2) such Debt is Permitted Debt.

     The term “Permitted Debt” is defined to include the following:

     (a) Debt under Credit Facilities (including, without limitation, the Incurrence of
Guarantees thereof) in an aggregate amount at any one time outstanding pursuant to this clause
(a) not to exceed the greater of (i) $860.0 million, less the aggregate amount of all Net
Available Cash from Asset Sales applied by Arch Coal or any Restricted Subsidiary to Repay any
such Debt pursuant to Section 4.09 of the Indenture and (ii) 30% of Consolidated Net Tangible
Assets;

     (b) Debt of Arch Coal and any Restricted Subsidiary evidenced by the Notes issued on the
Issue Date and the Note Guarantees thereof;

     (c) Debt of Arch Western evidenced by the Arch Western Notes and the Guarantees thereof
by Arch Western and its Subsidiaries;

     (d) Debt of Arch Coal or a Restricted Subsidiary in respect of Capital Lease Obligations
and Purchase Money Debt; provided that the aggregate principal amount of all Debt Incurred and
then outstanding pursuant to this clause (d) (together with all Permitted Refinancing Debt
Incurred and then outstanding in respect of Debt previously Incurred pursuant to this clause
(d)) does not exceed, at any one time outstanding, 7% of Consolidated Net Tangible Assets;

     (e) Debt of Arch Coal owing to and held by any Restricted Subsidiary and Debt of a
Restricted Subsidiary owing to and held by Arch Coal or any Restricted Subsidiary; provided,
however, that any subsequent issue or transfer of Capital Stock that results in any

45

 

such Restricted Subsidiary ceasing to be a Restricted Subsidiary or any subsequent
transfer of any such Debt (except the Arch Coal Notes, to Arch Coal or a Restricted Subsidiary
or any pledge of such Debt constituting a Permitted Lien) shall be deemed, in each case, to
constitute the Incurrence of such Debt by the issuer thereof;

     (f) Debt under Interest Rate Agreements entered into by Arch Coal or a Restricted
Subsidiary in the ordinary course of business;

     (g) Debt under Currency Exchange Protection Agreements entered into by Arch Coal or a
Restricted Subsidiary in the ordinary course of business;

     (h) Debt under Commodity Price Protection Agreements entered into by Arch Coal or a
Restricted Subsidiary in the ordinary course of business;

     (i) Debt in connection with one or more standby letters of credit, performance bonds, bid
bonds, appeal bonds, bankers acceptances, insurance obligations, surety bonds, completion
guarantees or other similar bonds and obligations, including self-bonding arrangements, issued
by Arch Coal or a Restricted Subsidiary in the ordinary course of business or pursuant to
self-insurance obligations and not in connection with the borrowing of money or the obtaining
of advances;

     (j) Debt of Arch Coal or any Restricted Subsidiary under one or more unsecured commercial
paper facilities in an aggregate amount pursuant to this clause (j) (including all Permitted
Refinancing Debt Incurred and then outstanding in respect of Debt previously Incurred pursuant
to this clause (j)) not to exceed $100.0 million at any one time outstanding;

     (k) Debt of Arch Coal or a Restricted Subsidiary outstanding on the Issue Date not
otherwise described in clauses (a) through (j) above or (l) through (s) below, including the
Arch Coal Senior Notes and the related Guarantees thereof;

     (l) other Debt of Arch Coal or any Restricted Subsidiary in an aggregate principal amount
outstanding at any one time not to exceed the greater of (1) $250.0 million and (2) 5% of
Consolidated Net Tangible Assets;

     (m) Permitted Refinancing Debt Incurred in respect of Debt Incurred pursuant to clause
(1) of the first paragraph of this covenant and clauses (b), (c), (d), (j), (k), and this
clause (m);

     (n) Debt consisting of installment payment obligations owed to any governmental agency in
connection with the acquisition of coal leases or oil, gas or other real property interests in
the ordinary course of business;

     (o) Debt Incurred by Arch Coal or any of its Restricted Subsidiaries arising from
agreements providing for indemnification, adjustment of purchase price or similar obligations,
or guarantees or letters of credit, surety bonds or performance bonds securing any obligations
of Arch Coal or any of its Restricted Subsidiaries pursuant to such agreements, in any case
Incurred in connection with the disposition of any business, assets

46

 

or Capital Stock of a Restricted Subsidiary (other than Guarantees of Debt Incurred by
any Person acquiring all or any portion of such business, assets or Capital Stock of a
Restricted Subsidiary for the purpose of financing such acquisition), so long as the amount
does not exceed the gross proceeds actually received by Arch Coal or any Restricted Subsidiary
thereof in connection with such disposition;

     (p) Debt Incurred by Arch Coal or any of its Restricted Subsidiaries arising from the
honoring by a bank or other financial institution of a check, draft or similar instrument
drawn against insufficient funds in the ordinary course of business, provided, however, that
such Debt is extinguished within five business days of its Incurrence;

     (q) Debt Incurred by Arch Coal to the extent that the net proceeds thereof are promptly
deposited to defease or to satisfy and discharge the Notes;

     (r) Debt of a Receivables Subsidiary in respect of a Receivables Facility, which is
non-recourse to Arch Coal or any other Restricted Subsidiary in any way other than Standard
Securitization Undertakings;

     (s) Debt of Persons that are acquired by Arch Coal or any of its Restricted Subsidiaries
or merged into a Restricted Subsidiary in accordance with the terms of the Indenture;
provided, however, that such Debt is not Incurred in contemplation of such acquisition or
merger or to provide all or a portion of the funds or credit support required to consummate
such acquisition or merger; provided further, that, after giving effect to such acquisition
and the Incurrence of such Debt, Arch Coal would be permitted to Incur at least $1.00 of
additional Debt pursuant to clause (1) of the first paragraph of this Section 4.06.

     Notwithstanding anything to the contrary contained in this Section 4.06, accrual of interest,
accretion or amortization of original issue discount and the payment of interest or dividends in
the form of additional Debt, will be deemed not to be an Incurrence of Debt for purposes of this
covenant.

     For purposes of determining compliance with this Section 4.06 in the event that an item of
Debt meets the criteria of more than one of the categories of Permitted Debt described in clauses
(a) through (s) above or is entitled to be incurred pursuant to clause (1) of the first paragraph
of this Section 4.06, Arch Coal shall, in its sole discretion classify, and may later reclassify,
such item of Debt in any manner that complies with this Section 4.06. Notwithstanding the
foregoing, Debt under the Credit Agreement outstanding on the Issue Date will be deemed to have
been Incurred on such date in reliance on the exception provided by clause (a) of the definition of
Permitted Debt and Debt under Arch Western’s existing commercial paper facility outstanding on the
Closing Date will be deemed to have been Incurred on such date in reliance on the exception
provided by clause (j) of the definition of Permitted Debt.

          SECTION 4.07. Limitation on Liens. 

     Arch Coal shall not, and shall not permit any Restricted Subsidiary to, directly or
indirectly, Incur or suffer to exist, any Lien (other than Permitted Liens) upon any of its
Property (including Capital Stock of a Restricted Subsidiary), whether owned at the Issue Date or

47

 

thereafter acquired, or any interest therein or any income or profits therefrom, unless it has
made or will make effective provision whereby the Notes or any Note Guarantee will be secured by
such Lien equally and ratably with all other Debt of Arch Coal or any Restricted Subsidiary secured
by such Lien for so long as such other Debt is secured by such Lien; provided, however, that if
such Debt is expressly subordinated to the Notes or any Note Guarantee, the Lien securing such Debt
will be subordinated and junior to the Lien securing the Notes or such Note Guarantee, as the case
may be, with the same relative priority as such Debt has with respect to the Notes or such Note
Guarantee.

          SECTION 4.08. Limitation on Restricted Payments. Arch Coal shall not make, and shall
not permit any Restricted Subsidiary to make, directly or indirectly, any Restricted Payment if at
the time of, and after giving effect to, such proposed Restricted Payment,

     (a) a Default or Event of Default shall have occurred and be continuing;

     (b) Arch Coal could not Incur at least $1.00 of additional Debt pursuant to clause (1) of
the first paragraph of Section 4.06 of this Supplemental Indenture; or

     (c) the aggregate amount of such Restricted Payment and all other Restricted Payments
declared or made since the Issue Date (the amount of any Restricted Payment, if made other
than in cash, to be based upon Fair Market Value at the time of such Restricted Payment) would
exceed an amount equal to the sum of:

     (1) 50% of the aggregate amount of Consolidated Net Income of Arch Coal accrued
during the period (treated as one accounting period) from the beginning of the fiscal
quarter during which the Issue Date occurs to the end of the most recent fiscal
quarter for which internal financial statements are available at the time of such
Restricted Payment (or if the aggregate amount of Consolidated Net Income of Arch Coal
for such period shall be a deficit, minus 100% of such deficit), plus

     (2) 100% of the Capital Stock Sale Proceeds, plus

     (3) the sum of:

	 	(A)	 	the aggregate net cash proceeds received by
Arch Coal or any Restricted Subsidiary from the issuance or sale after
the Issue Date of convertible or exchangeable Debt that has been
converted into or exchanged for Capital Stock (other than Disqualified
Stock) of Arch Coal, and
	 
	 	(B)	 	the aggregate net cash proceeds received by
Arch Coal from the issuance and sale after the Issue Date of Debt of
Arch Coal or any Restricted Subsidiary that has been converted or
exchanged for Capital Stock (other than Disqualified Stock) of Arch
Coal,

     excluding, in the case of clause (A) or (B):

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     (x) any such Debt issued or sold to Arch Coal or a Subsidiary of Arch
Coal or an employee stock ownership plan or trust established by Arch Coal or any
such Subsidiary for the benefit of their employees, and

     (y) the aggregate amount of any cash or other Property distributed by Arch Coal
or any Restricted Subsidiary upon any such conversion or exchange,

     plus

     (4) an amount equal to the sum of:

	 	(A)	 	the net reduction in Investments in any Person
other than Arch Coal or a Restricted Subsidiary resulting from
dividends, repayments of loans or advances or other transfers of
Property, in each case to Arch Coal or any Restricted Subsidiary from
such Person, and
	 
	 	(B)	 	the portion (proportionate to Arch Coal’s
equity interest in such Unrestricted Subsidiary) of the Fair Market
Value of the net assets of an Unrestricted Subsidiary of Arch Coal at
the time such Unrestricted Subsidiary is designated a Restricted
Subsidiary;

provided, however, that the foregoing sum shall not exceed, in the case of any Person, the
amount of Investments previously made (and treated as a Restricted Payment) by Arch Coal or
any Restricted Subsidiary in such Person.

Notwithstanding the foregoing limitation, Arch Coal may:

     (a) pay dividends on its Capital Stock within 60 days of the declaration thereof if, on
the declaration date, such dividends could have been paid in compliance with the Indenture;
provided, however, that such dividend shall be included in the calculation of the amount of
Restricted Payments;

     (b) make Restricted Payments in exchange for, or out of the proceeds of the substantially
concurrent sale of, Capital Stock of Arch Coal (other than Disqualified Stock and other than
Capital Stock issued or sold to a Subsidiary of Arch Coal or an employee stock ownership plan
or trust established by Arch Coal or any such Subsidiary for the benefit of their employees);
provided, however; that

     (1) such purchase, repurchase, redemption, legal defeasance, acquisition or
retirement shall be excluded in the calculation of the amount of Restricted Payments
and

     (2) the Capital Stock Sale Proceeds from such exchange or sale shall be excluded
from the calculation pursuant to clause (c) above;

     (c) purchase, repurchase, redeem, legally defease, acquire or retire for value any
Subordinated Obligations in exchange for, or out of the proceeds of the substantially

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concurrent sale of, Permitted Refinancing Debt; provided, however, that such purchase,
repurchase, redemption, legal defeasance, acquisition or retirement shall be excluded in the
calculation of the amount of Restricted Payments;

     (d) repurchase shares of, or options to purchase shares of, common stock of Arch Coal or
any of its Subsidiaries from current or former Officers, directors or employees of Arch Coal
or any of its Subsidiaries (or permitted transferees of such current or former Officers,
directors or employees), pursuant to the terms of agreements (including employment agreements)
or plans (or amendments thereto) approved by the Board of Directors under which such
individuals purchase or sell, or are granted the option to purchase or sell, shares of such
common stock; provided, however, that: (1) the aggregate amount of such repurchases shall not
exceed $5.0 million in any calendar year (with unused amounts in any calendar year being
carried over to succeeding years subject to a maximum of $10.0 million in any calendar year)
and (2) at the time of such repurchase, no other Default or Event of Default shall have
occurred and be continuing (or result therefrom); provided further, however, that such
repurchases shall be included in the calculation of the amount of Restricted Payments;

     (e) so long as no Default or Event of Default has occurred and is continuing and Arch
Western is a limited liability company, make distributions to the ARCO Member (as defined in
the LLC Agreement), with respect to any period after June 30, 2010, not to exceed the Tax
Amount allocated to such member under the LLC Agreement for such period; provided, however,
that such distributions shall be excluded in the calculation of the amount of Restricted
Payments;

     (f) so long as no Default or Event of Default has occurred and is continuing, make
distributions of the Preferred Return (as defined in the LLC Agreement) to the ARCO Member (as
defined in the LLC Agreement) pursuant to the LLC Agreement in effect on the Issue Date;
provided, however, that such distribution pursuant to this clause (f) shall not exceed
$100,000 per year and shall be excluded in the calculation of the amount of Restricted
Payments;

     (g) pay cash in lieu of fractional Capital Stock pursuant to the exchange or conversion
of any exchangeable or convertible securities; provided, however, that such payment shall not
be for the purpose of evading the limitation of this covenant (as determined by the Board of
Director in good faith); provided further, however, that such payments will be included in the
calculation of the amount of Restricted Payments;

     (h) repurchase of Capital Stock deemed to occur upon the exercise of options, warrants or
other securities convertible into or exchangeable for Capital Stock of Arch Coal to the extent
that such Capital Stock represents all or a portion of the exercise price thereof; provided,
however, that such repurchase will be excluded in the calculation of the amount of Restricted
Payments;

     (i) declare and pay dividends to holders of any class or series of Disqualified Stock of
Arch Coal or any Restricted Subsidiary, or Preferred Stock of a Restricted Subsidiary, in each
case issued in accordance with the covenant described in Section 4.06 of this

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Supplemental Indenture; provided, however, that 50% of such dividends shall be included
in the calculation of the amount of Restricted Payments;

     (j) declare and pay dividends on Arch Coal’s common stock not to exceed an annual rate of
$0.40 per share (such amount to be appropriately adjusted to reflect any stock split, reverse
stock split, stock dividend or similar transaction occurring after the Issue Date so that the
aggregate amount of dividends permitted after such transaction is the same as the amount
permitted immediately prior to such transaction); provided however, that that such dividends
shall be excluded in the calculation of the amount of Restricted Payments; and

     (k) so long as no Default or Event of Default has occurred and is continuing, other
Restricted Payments in an aggregate amount not to exceed $50.0 million; provided, however,
that such Restricted Payments shall be excluded in the calculation of the amount of Restricted
Payments.

     For purposes of determining compliance with this Section 4.08, if a Restricted Payment meets
the criteria of more than one of the types of Restricted Payments described in clauses (a) through
(k) above, Arch Coal may, in its sole discretion, classify such Restricted Payment in any manner
that complies with this covenant.

          SECTION 4.09. Limitation on Asset Sales. Arch Coal shall not, and shall not permit
any Restricted Subsidiary to, directly or indirectly, consummate any Asset Sale unless:

     (a) Arch Coal or such Restricted Subsidiary receives consideration at the time of such
Asset Sale at least equal to the Fair Market Value of the Property subject to such Asset Sale;

     (b) at least 75% of the consideration paid to Arch Coal or such Restricted Subsidiary in
connection with such Asset Sale is in the form of cash, Cash Equivalents or Additional Assets
or a combination thereof. For purposes of this provision, each of the following will be
deemed to be cash:

     (1) any liabilities of Arch Coal or any Restricted Subsidiary (other than
contingent liabilities, liabilities that are by their terms subordinated to the Notes
or the Note Guarantees or liabilities to the extent owed to Arch Coal or any
Subsidiary of Arch Coal) that are assumed by the transferee of any Property or Capital
Stock, as applicable, to the extent that Arch Coal and the Restricted Subsidiaries are
no longer obligated with respect to such liabilities; and

     (2) any securities, notes or other obligations received by Arch Coal or any such
Restricted Subsidiary from such transferee that are converted by Arch Coal or such
Restricted Subsidiary into cash within 180 days of receipt (to the extent of the cash
received in that conversion).

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     The Net Available Cash (or any portion thereof) from Asset Sales may be applied by Arch Coal
or a Restricted Subsidiary to the extent Arch Coal or such Restricted Subsidiary elects (or is
required by the terms of any Debt) to:

     (a) repay any secured Debt of the Company or a Restricted Subsidiary (other than
Subordinated Obligations), any Debt of a Restricted Subsidiary that is not a Guarantor (other
than Debt owed to Arch Coal or another Restricted Subsidiary) or any Debt under the Credit
Agreement; or

     (b) make a capital expenditure or reinvest in Additional Assets (including by means of an
Investment in Additional Assets by a Restricted Subsidiary with Net Available Cash received by
Arch Coal or another Restricted Subsidiary).

     Any Net Available Cash from an Asset Sale (other than an Asset Sale consisting of all of the
Capital Stock of Canyon Fuel Company, LLC or Mountain Coal Company, L.L.C.) not applied in
accordance with the preceding paragraph within 365 days from the date of the receipt of such Net
Available Cash (provided that such 365 day period shall be extended with respect to Net Available
Cash received by Arch Western or its Restricted Subsidiaries until the consummation of any asset
sale prepayment offer required to be made pursuant to the Arch Western Notes Indenture or any
agreement governing Permitted Refinancing Debt in respect thereof) or that is not segregated from
the general funds of Arch Coal for investment in identified Additional Assets in respect of a
project that shall have been commenced, and for which binding contractual commitments have been
entered into, prior to the end of such 365-day period and that shall not have been completed or
abandoned shall constitute “Excess Proceeds;” provided, however, that the amount of any Net
Available Cash that ceases to be so segregated as contemplated above and any Net Available Cash
that is segregated in respect of a project that is abandoned or completed shall also constitute
“Excess Proceeds” at the time any such Net Available Cash ceases to be so segregated or at the time
the relevant project is so abandoned or completed, as applicable; provided further, however, that
the amount of any Net Available Cash that continues to be segregated for investment and that is not
actually reinvested within twenty-four months from the date of the receipt of such Net Available
Cash shall also constitute “Excess Proceeds.” Any Net Available Cash from an Asset Sale consisting
of all of the Capital Stock of Canyon Fuel Company, LLC or Mountain Coal Company, L.L.C. not
applied in accordance with the preceding paragraph within 365 days from the date of the receipt of
such Net Available Cash shall be segregated from the general funds of Arch Coal and invested in
cash or Cash Equivalents pending application in accordance with the preceding paragraph. Subject
to the foregoing, Arch Coal or such Restricted Subsidiary may apply the Net Available Cash to
temporarily reduce Debt outstanding under a revolving credit facility or otherwise invest such Net
Available Cash in any manner not prohibited by the Indenture pending the final application of the
Net Available Cash pursuant to this covenant.

     When the aggregate amount of Excess Proceeds (including income earned on such Excess Proceeds)
exceeds $50.0 million (or earlier at Arch Coal’s option, in which case Excess Proceeds shall be
deemed to include any Net Available Cash Arch Coal elects to include in such repurchase offer),
Arch Coal will be required to make an offer to repurchase (the “Prepayment Offer”) the
Notes, which offer shall be in the amount of the Allocable Excess Proceeds (rounded to the nearest
$1,000), on a pro rata basis according to principal amount, at a purchase price

52

 

equal to 100% of the principal amount thereof, plus accrued and unpaid interest to the
repurchase date (subject to the right of Holders of record on the relevant Record Date to receive
interest due on the relevant interest payment date), in accordance with the procedures (including
prorating in the event of oversubscription) set forth in the Indenture. To the extent that any
portion of the amount of Net Available Cash remains after compliance with the preceding sentence
and provided that all Holders of Notes have been given the opportunity to tender their Notes for
repurchase in accordance with the Indenture, Arch Coal or such Restricted Subsidiary may use such
remaining amount for any purpose permitted by the Indenture, and the amount of Excess Proceeds will
be reset to zero.

     The term “Allocable Excess Proceeds” shall mean the product of:

     (a) the Excess Proceeds and

     (b) a fraction,

     (1) the numerator of which is the aggregate principal amount of the Notes
outstanding on the date of the Prepayment Offer, and

     (2) the denominator of which is the sum of the aggregate principal amount of the
Notes outstanding on the date of the Prepayment Offer and the aggregate principal
amount of other Debt of Arch Coal outstanding on the date of the Prepayment Offer that
is pari passu in right of payment with the Notes and subject to terms and conditions
in respect of Asset Sales similar in all material respects to this covenant and
requiring Arch Coal to make an offer to repurchase such Debt at substantially the same
time as the Prepayment Offer.

     Within five business days after Arch Coal is obligated to make a Prepayment Offer as described
in the preceding paragraph, Arch Coal shall send a written notice, by first-class mail, to the
Holders of Notes, accompanied by such information regarding Arch Coal and its Subsidiaries as Arch
Coal in good faith believes will enable such Holders to make an informed decision with respect to
such Prepayment Offer. Such notice shall state, among other things, the purchase price and the
repurchase date, which shall be, subject to any contrary requirements of applicable law, a business
day no earlier than 30 days nor later than 60 days from the date such notice is mailed.

     Arch Coal will comply, to the extent applicable, with the requirements of Section 14(e) of the
Exchange Act and any other securities laws or regulations in connection with the repurchase of
Notes pursuant to this covenant. To the extent that the provisions of any securities laws or
regulations conflict with provisions of this covenant, Arch Coal will comply with the applicable
securities laws and regulations and will not be deemed to have breached its obligations under this
covenant by virtue thereof.

          SECTION 4.10. Limitation on Transactions with Affiliates. Arch Coal shall not, and
shall not permit any Restricted Subsidiary to, directly or indirectly, enter into or suffer to
exist any transaction or series of transactions (including the purchase, sale, transfer,
assignment, lease, conveyance or exchange of any Property or the rendering of any service) with, or
for the benefit of, any Affiliate of Arch Coal (an “Affiliate Transaction”), unless:

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     (a) the terms of such Affiliate Transaction are not materially less favorable to Arch
Coal or such Restricted Subsidiary, as the case may be, than those that could be obtained in a
comparable arm’s-length transaction with a Person that is not an Affiliate of Arch Coal;

     (b) if such Affiliate Transaction involves aggregate payments or value in excess of $25.0
million, the Board of Directors (including at least a majority of the disinterested members of
the Board of Directors) approves such Affiliate Transaction and, in its good faith judgment,
believes that such Affiliate Transaction complies with clauses (a) of this paragraph as
evidenced by a Board Resolution promptly delivered to the Trustee; provided, however, if there
are no disinterested members of the Board of Directors, Arch Coal shall receive a written
opinion from an Independent Financial Advisor described in clause (c) below; and

     (c) if such Affiliate Transaction involves aggregate payments or value in excess of
$100.0 million, Arch Coal obtains a written opinion from an Independent Financial Advisor to
the effect that the consideration to be paid or received in connection with such Affiliate
Transaction is fair, from a financial point of view, to Arch Coal or such Restricted
Subsidiary or that such Affiliate Transaction is not materially less favorable to Arch Coal or
such Restricted Subsidiary, as the case may be, than those that could be obtained in a
comparable arm’s length transaction with a Person that is not an Affiliate of Arch Coal.

     Notwithstanding the foregoing limitation, Arch Coal or any Restricted Subsidiary may enter
into or suffer to exist the following:

     (a) any transaction or series of transactions between Arch Coal and one or more
Restricted Subsidiaries, or among Restricted Subsidiaries;

     (b) any Restricted Payment permitted to be made pursuant to the first paragraph of the
covenant described under Section 4.08 of this Supplemental Indenture or Permitted Investments
(other than pursuant to clause (b), (c), (j) or (k) of such definition);

     (c) the payment of compensation (including amounts paid pursuant to employment and
related agreements and employee benefit plans) for the personal services of officers,
directors and employees of Arch Coal or any of its Restricted Subsidiaries;

     (d) loans and advances to employees made in the ordinary course of business permitted by
law and consistent with the past practices of Arch Coal or such Restricted Subsidiary;

     (e) indemnities of Officers, directors and employees of the Company or any Restricted
Subsidiary consistent with applicable charter, bylaw or statutory provisions;

     (f) agreements in effect on the Issue Date and any modifications, extensions or renewals
thereto that are not materially less favorable to Arch Coal or any Restricted Subsidiary than
such agreements as in effect on the Issue Date;

     (g) pledges of Capital Stock of Unrestricted Subsidiaries for the benefit of lenders to
such Unrestricted Subsidiaries; and

54

 

     (h) any transaction with a Receivables Subsidiary as part of a Receivables Facility and
otherwise in compliance with the Indenture that are fair to Arch Coal or its Restricted
Subsidiaries or not less favorable to Arch Coal or its Restricted Subsidiaries than those that
might be obtained at the time with Persons that are not Affiliates of Arch Coal (as determined
in good faith by the Board of Directors).

          SECTION 4.11. Change of Control. Upon the occurrence of a Change of Control, each
holder of Notes shall have the right to require Arch Coal to repurchase all or any part of such
holder’s Notes pursuant to the offer described below (the “Change of Control Offer”) at a
purchase price (the “Change of Control Purchase Price”) equal to 101% of the principal
amount thereof, plus accrued and unpaid interest to the repurchase date (subject to the right of
Holders of record on the relevant Record Date to receive interest due on the relevant interest
payment date). If the repurchase date is after a Record Date and on or before the relevant
interest payment date, the accrued and unpaid interest, if any, will be paid to the person or
entity in whose name the Note is registered at the close of business on that Record Date, and no
additional interest will be payable to Holders whose Notes shall be subject to repurchase.

     Within 30 days following any Change of Control, Arch Coal shall:

     (a) cause a notice of the Change of Control Offer to be sent at least once to the Dow
Jones News Service or similar business news service in the United States; and

     (b) send, by first-class mail, with a copy to the Trustee, to each Holder of Notes, at
such Holder’s address appearing in the Security Register, a notice stating:

     (1) that a Change of Control has occurred and a Change of Control Offer is being
made pursuant to this Section 4.11 of the Indenture and that all Notes timely tendered
will be accepted for payment;

     (2) the Change of Control Purchase Price and the repurchase date, which shall be,
subject to any contrary requirements of applicable law, a business day no earlier than
30 days nor later than 60 days from the date such notice is mailed;

     (3) the circumstances and relevant facts regarding the Change of Control
(including information with respect to pro forma historical income, cash flow and
capitalization after giving effect to the Change of Control); and

     (4) the procedures that Holders of Notes must follow in order to tender their
Notes (or portions thereof) for payment, and the procedures that Holders of Notes must
follow in order to withdraw an election to tender Notes (or portions thereof) for
payment.

     Arch Coal will not be required to make a Change of Control Offer following a Change of Control
if a third party makes the Change of Control Offer in the manner, at the times and otherwise in
compliance with the requirements set forth in this Supplemental Indenture applicable to a Change of
Control Offer made by Arch Coal and purchases all Notes validly tendered and not withdrawn under
such Change of Control Offer.

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     Arch Coal will comply, to the extent applicable, with the requirements of Section 14(e) of the
Exchange Act and any other securities laws or regulations in connection with the repurchase of
Notes pursuant to a Change of Control Offer. To the extent that the provisions of any securities
laws or regulations conflict with the provisions of this covenant, Arch Coal will comply with the
applicable securities laws and regulations and will not be deemed to have breached its obligations
under this covenant by virtue of such compliance.

          SECTION 4.12. Limitation on Sale and Leaseback Transactions. Arch Coal shall not, and
shall not permit any of its Restricted Subsidiaries to, enter into any Sale and Leaseback
Transaction with respect to any Property unless:

     (a) Arch Coal or such Restricted Subsidiary would be entitled to:

     (i) Incur Debt in an amount equal to the Attributable Debt with respect to
such Sale and Leaseback Transaction pursuant to Section 4.06 of this Supplemental
Indenture, and

     (ii) create a Lien on such Property securing such Attributable Debt without
also securing the Notes or the applicable Note Guarantee pursuant to Section 4.07
of this Supplemental Indenture, and

     (b) such Sale and Leaseback Transaction is effected in compliance with Section 4.09 of
this Supplemental Indenture.

          SECTION 4.13. Guarantees by Restricted Subsidiaries. If Arch Coal acquires or creates
another Domestic Subsidiary after the Issue Date, then that newly acquired or created Subsidiary
will become a Guarantor and execute a supplemental indenture within 10 days of the date on which it
was created or acquired or became a Subsidiary; provided, however, that all Subsidiaries that have
been properly designated as Unrestricted Subsidiaries in accordance with this Supplemental
Indenture for so long as they continue to constitute Unrestricted Subsidiaries will not have to
become a Guarantor pursuant to this Section 4.13. In addition, Arch Coal shall not permit any
Restricted Subsidiary that is not a Guarantor, directly or indirectly, to Guarantee or secure the
payment of any other Debt of Arch Coal or any other Guarantor unless such Restricted Subsidiary
simultaneously executes and delivers a supplemental indenture to the Indenture providing for a Note
Guarantee of the payment of the Notes by such Restricted Subsidiary; provided that this paragraph
shall not be applicable to:

     (i) any Guarantee of any Restricted Subsidiary that existed at the time such
Person became a Restricted Subsidiary and was not incurred in connection with, or
in contemplation of, such Person becoming a Restricted Subsidiary;

     (ii) any Guarantee arising under or in connection with performance bonds,
indemnity bonds, surety bonds or letters of credit or bankers’ acceptances or coal
sales contracts; or

     (iii) Permitted Liens.

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     If the Guaranteed Debt is a Subordinated Obligation, the Guarantee of such Guaranteed Debt
must be subordinated in right of payment to the Note Guarantee to at least the extent that the
Guaranteed Debt is subordinated to the Notes or the applicable Note Guarantee.

          SECTION 4.14. Limitation on Restrictions on Distributions from Restricted
Subsidiaries. Arch Coal shall not, and shall not permit any Restricted Subsidiary to, directly
or indirectly, create or otherwise cause or suffer to exist any consensual restriction on the right
of any Restricted Subsidiary to:

     (a) pay dividends, in cash or otherwise, or make any other distributions on or in respect
of its Capital Stock, or pay any Debt or other obligation owed, to Arch Coal or any other
Restricted Subsidiary;

     (b) make any loans or advances to Arch Coal or any other Restricted Subsidiary; or

     (c) transfer any of its Property to Arch Coal or any other Restricted Subsidiary.

     (d) The foregoing limitations will not apply:

     (1) with respect to clauses (a), (b) and (c), to restrictions:

	 	(A)	 	in effect on the Issue Date (including, without
limitation, restrictions pursuant to the Arch Western Notes and the
Arch Western Notes Indenture, the Arch Coal Senior Notes and the Arch
Coal Senior Notes Indenture, the LLC Agreement, the Credit Agreement,
the Notes and the Indenture);
	 
	 	(B)	 	relating to Debt of a Restricted Subsidiary of
Arch Coal and existing at the time it became a Restricted Subsidiary if
such restriction was not created in connection with or in anticipation
of the transaction or series of transactions pursuant to which such
Restricted Subsidiary became a Restricted Subsidiary or was acquired by
Arch Coal;
	 
	 	(C)	 	that result from any amendment, restatement,
renewal, replacement or refinancing of an agreement referred to in
clause (1)(A) or (B) above or in clause (2)(A) or (B) below, provided
such restrictions are not materially more restrictive, taken as a
whole, than those under the agreement evidencing the Debt so
Refinanced;
	 
	 	(D)	 	existing under, or by reason of or with respect
to applicable law, rule, regulation or order of any governmental
authority;
	 
	 	(E)	 	on cash or other deposits or net worth imposed
by customers or required by insurance surety or bonding companies, in
each case, under contracts entered into in the ordinary course of
business;

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	 	(F)	 	relating to Debt of a Receivables Subsidiary or
other contractual requirements of a Receivables Subsidiary in
connection with a Receivables Facility; provided that such restrictions
only apply to such Receivables Subsidiary or the receivables which are
subject to the Receivables Facility;
	 
	 	(G)	 	with respect to any Person or the Property of a
Person acquired by Arch Coal or any of its Restricted Subsidiaries
existing at the time of such acquisition and not incurred in connection
with or in anticipation of such acquisition, which restriction is not
applicable to any Person or the Property of any Person, other than the
Person, or the Property of the Person, so acquired and any amendments,
modifications, restatements, renewals, extensions, supplements,
refundings, replacements or refinancings thereof, provided that the
restrictions in any such amendments, modifications, restatements,
renewals, extensions, supplements, refundings, replacements or
refinancings are not materially more restrictive, taken as a whole,
than those in effect on the date of the acquisition;
	 
	 	(H)	 	contained in customary provisions in asset sale
agreements limiting the transfer of such Property or distributions or
loans from the Property to be sold pending the closing of such sale;
	 
	 	(I)	 	contained in customary provisions in
partnership agreements, limited liability company organizational
governance documents, joint venture agreements and other similar
agreements that restrict the transfer of ownership interest in, or
assets of, such partnership, limited liability company, joint venture
or similar Person; and
	 
	 	(J)	 	contained in agreements or instruments
governing the Debt of a Restricted Subsidiary; provided that such
restrictions contained in any agreement or instrument will not
materially affect Arch Coal’s ability to make anticipated principal or
interest payments on the Notes (as determined in good faith by the
Board of Directors or the senior management of Arch Coal); and

     (2) with respect to clause (c) only, to restrictions:

	 	(A)	 	relating to Debt that is permitted to be
Incurred and secured without also securing the Notes pursuant to
Section 4.06 and 4.07 of this Supplemental Indenture that limit the
right of the debtor to dispose of the Property securing such Debt;
	 
	 	(B)	 	resulting from customary provisions restricting
subletting, assignment or transfer of any property or asset that is
subject to a lease, license, sub-license or similar contract or
customary

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	 	 	 	provisions in other agreements that restrict assignment or transfer
of such agreements or rights thereunder; or
	 
	 	(C)	 	customary restrictions contained in asset sale
agreements limiting the transfer of such Property pending the closing
of such sale.

          SECTION 4.15. Designation of Restricted and Unrestricted Subsidiaries. The Board of
Directors may designate any Restricted Subsidiary to be an Unrestricted Subsidiary if that
designation (which would constitute an Investment in such Subsidiary) would not result in a breach
of Section 4.08 of this Supplemental Indenture or otherwise cause a Default. If a Restricted
Subsidiary is designated as an Unrestricted Subsidiary, the aggregate Fair Market Value of all
outstanding Investments owned by Arch Coal and its Restricted Subsidiaries in the Subsidiary
properly designated will be deemed to be an Investment made as of the time of the designation as
set forth under the definition of “Investment” and will reduce the amount available for Restricted
Payments under the first paragraph of Section 4.08 of this Supplemental Indenture or Permitted
Investments, as determined by Arch Coal. That designation will only be permitted if the Investment
would be permitted at that time and if the Restricted Subsidiary otherwise meets the definition of
an Unrestricted Subsidiary.

     The Board of Directors may also designate any Subsidiary of Arch Coal to be an Unrestricted
Subsidiary if:

     (a) the Subsidiary to be so designated does not own any Capital Stock or Debt of, or own
or hold any Lien on any Property of, Arch Coal or any other Restricted Subsidiary and is not
required to be a Guarantor pursuant to the Indenture; and

     (b) either:

     (1) the Subsidiary to be so designated has total assets of $1,000,000 or less; or

     (2) such designation is effective immediately upon such entity becoming a
Subsidiary of Arch Coal.

     Unless so designated as an Unrestricted Subsidiary, any Person that becomes a Subsidiary of
Arch Coal will be classified as a Restricted Subsidiary; provided, however, that such Subsidiary
shall not be designated a Restricted Subsidiary and shall be automatically classified as an
Unrestricted Subsidiary if either of the requirements set forth in clauses (x) and (y) of the
second immediately following paragraph will not be satisfied after giving pro forma effect to such
classification or if such Person is a Subsidiary of an Unrestricted Subsidiary.

     In addition, neither Arch Coal nor any of its Restricted Subsidiaries shall at any time be
directly or indirectly liable for any Debt that provides that the holder thereof may (with the
passage of time or notice or both) declare a default thereon or cause the payment thereof to be
accelerated or payable prior to its Stated Maturity upon the occurrence of a default with respect
to any Debt, Lien or other obligation of any Unrestricted Subsidiary (including any right to take
enforcement action against such Unrestricted Subsidiary) except for a pledge of the Capital Stock
of any Unrestricted Subsidiary for the benefit of such holders.

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     The Board of Directors may designate any Unrestricted Subsidiary to be a Restricted Subsidiary
if, immediately after giving pro forma effect to such designation,

(x) Arch Coal could Incur at least $1.00 of additional Debt pursuant to clause (1)
of the first paragraph of Section 4.06 of this Supplemental Indenture and

(y) no Default or Event of Default shall have occurred and be continuing or would
result therefrom.

     Any such designation or redesignation by the Board of Directors will be evidenced by filing
with the Trustee a Board Resolution giving effect to such designation or redesignation and an
Officers’ Certificate that:

     (a) certifies that such designation or redesignation complies with the foregoing
provisions; and

     (b) gives the effective date of such designation or redesignation,

such filing with the Trustee to occur within 45 days after the end of the fiscal quarter of Arch
Coal in which such designation or redesignation is made (or, in the case of a designation or
redesignation made during the last fiscal quarter of Arch Coal’s fiscal year, within 90 days after
the end of such fiscal year).

          SECTION 4.16. Payment of Taxes and Other Claims. Arch Coal will pay or discharge and
shall cause each of the Subsidiaries to pay or discharge, or cause to be paid or discharged, before
the same shall become delinquent (a) all material taxes, assessments and governmental charges
levied or imposed upon (i) Arch Coal or any such Subsidiary, (ii) the income or profits of any such
Subsidiary which is a corporation or (iii) the property of Arch Coal or any such Subsidiary and (b)
all material lawful claims for labor, materials and supplies that, if unpaid, might by law become a
Lien upon the property of Arch Coal or any such Subsidiary; provided, however, that Arch Coal shall
not be required to pay or discharge, or cause to be paid or discharged, any such tax, assessment,
charge or claim the amount, applicability or validity of which is being contested in good faith by
appropriate proceedings and for which adequate reserves have been established.

          SECTION 4.17. Reports to Holders. Notwithstanding that Arch Coal may not be subject
to the reporting requirements of Section 13 or 15(d) of the Exchange Act, Arch Coal shall file with
the Commission and provide the Trustee and Holders of Notes with such annual reports and such
information, documents and other reports as are specified in Sections 13 and 15(d) of the Exchange
Act and applicable to a U.S. corporation subject to such Sections, such information, documents and
reports to be so filed with the Commission and provided at the times specified for the filing of
such information, documents and reports under such Sections; provided, however, that Arch Coal
shall not be so obligated to file such information, documents and reports with the Commission if
the Commission does not permit such filings; provided further, however, that Arch Coal will be
required to provide to the Trustee and the Holders of Notes any such information, documents or
reports that are not are so filed.

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          SECTION 4.18. Legal Existence. Subject to Article Five, Arch Coal shall do or cause
to be done all things necessary to preserve and keep in full force and effect its corporate
existence, and the corporate, partnership or other existence of each Restricted Subsidiary, in
accordance with the respective organizational documents (as the same may be amended from time to
time) of each Restricted Subsidiary and the material rights (charter and statutory) and franchises
of Arch Coal and the Restricted Subsidiaries; provided that Arch Western shall not be required to
preserve any such right, franchise, or the corporate, partnership or other existence of any of its
Restricted Subsidiaries if the preservation thereof is no longer desirable in the conduct of the
business of Arch Coal and its Restricted Subsidiaries taken as a whole and that the loss thereof is
not adverse in any material respect to the Holders.

          SECTION 4.19. Waiver of Stay, Extension or Usury Laws. Arch Coal and each of the
Guarantors covenants (to the extent that it may lawfully do so) that it shall not at any time
insist upon, or plead (as a defense or otherwise) or in any manner whatsoever claim or take the
benefit or advantage of, any stay or extension law or any usury law or other law which would
prohibit or forgive any of Arch Coal and the Guarantors from paying all or any portion of the
principal of, premium, if any, and/or interest on the Notes or the Note Guarantees as contemplated
herein, wherever enacted, now or at any time hereafter in force, or which may affect the covenants
or the performance of this Supplemental Indenture; and (to the extent that they may lawfully do so)
each of Arch Coal and the Guarantors hereby expressly waives all benefit or advantage of any such
law, and covenants that it will not hinder, delay or impede the execution of any power herein
granted to the Trustee, but will suffer and permit the execution of every such power as though no
such law had been enacted.

          SECTION 4.20. Further Instruments and Acts. Upon request of the Trustee (but without
imposing any duty or obligation of any kind on the Trustee to make any such request), Arch Coal and
the Guarantors shall execute and deliver such further instruments and do such further acts as may
be reasonably necessary or proper to carry out more effectively the purpose of this Supplemental
Indenture.

          SECTION 4.21. Covenant Termination. Upon the first date that (a) the Notes have
Investment Grade Ratings from both Ratings Agencies and (b) no Default has occurred and is
continuing hereunder, Arch Coal and its Restricted Subsidiaries will not be subject to the
provisions of this Supplemental Indenture described under Sections 4.06, 4.08, 4.09, 4.10, clause
(a) and (b) of Section 4.12, 4.14, 4.15 and clause (a)(2) of Section 5.01 hereof.

ARTICLE FIVE

CONSOLIDATION, MERGER OR SALE OF ASSETS

          SECTION 5.01. Consolidation, Merger or Sale of Assets. (a) Arch Coal shall not:

     (1) merge, consolidate or amalgamate with or into any Person (other than a merger
of a Wholly Owned Restricted Subsidiary of Arch Coal into Arch Coal); or

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     (2) in a single transaction or through a series of transactions, sell, assign,
convey, transfer, lease or otherwise dispose of all or substantially all of its
properties and assets to any Person or Persons, if such transaction or series of
transactions, in the aggregate, would result in the sale, assignment, conveyance,
transfer, lease or other disposition of all or substantially all of the Property of
Arch Coal to any other Person or Persons.

     (b) Section (a) above shall not apply to Arch Coal if:

     (1) at the time and immediately after giving effect to any such consolidation,
merger, transaction or series of transactions, either Arch Coal shall be the Surviving
Person or the Person (if other than Arch Coal) formed by such consolidation or into
which Arch Coal is merged or the Person that acquires by sale, assignment, conveyance,
transfer, lease or other disposition all or substantially all of Arch Coal’s Property:

	 	(A)	 	shall be a corporation, partnership or limited
liability company or a corporation duly organized and validly existing
under the laws of the United States of America, any state thereof or
the District of Columbia; provided that at any time the Surviving
Person is a partnership or a limited liability company, there shall be
a co-issuer of the Notes that is a corporation that also satisfies the
requirements of this covenant; and
	 
	 	(B)	 	expressly assumes (if other than Arch Coal), by
a supplemental indenture in form satisfactory to the Trustee, Arch
Coal’s obligations under the Notes, this Supplemental Indenture, and
the Notes and this Supplemental Indenture remain in full force and
effect as so supplemented;

     (2) in the case of a sale, transfer, assignment, lease, conveyance or other
disposition of all or substantially all the Property, such Property shall have been
transferred as an entirety or virtually as an entirety to one Person;

     (3) immediately after giving effect to such transaction or series of transactions
on a pro forma basis (and treating, for purposes of this clause (b)(3) and clause
(b)(4) below any Debt that becomes, or is anticipated to become, an obligation of the
Surviving Person or any Restricted Subsidiary as a result of such transaction or
series of transactions as having been Incurred by the Surviving Person or such
Restricted Subsidiary at the time of such transaction or series of transactions), no
Default or Event of Default shall have occurred and be continuing;

     (4) immediately after giving effect to any such consolidation, merger,
transaction or series of transactions on a pro forma basis (on the assumption that the
transaction or series of transactions occurred on the first day of the four-quarter
period immediately prior to the consummation of such transaction or series of
transactions with the appropriate adjustments with respect to the transaction or

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series of transactions being included in such pro forma calculation), the
Surviving Person could incur at least $1.00 of additional Debt (other than Permitted
Debt) in accordance with Section 4.06 hereto;

     (5) at the time of any such consolidation, merger, transaction or series of
transactions, Arch Coal or the Surviving Person shall have delivered to the Trustee,
in form and substance satisfactory to the Trustee, an Officers’ Certificate (attaching
the authentic computations to demonstrate compliance with clause (b)(4) above) and an
Opinion of Counsel, each stating that such consolidation, merger, sale, assignment,
conveyance, transfer, lease or other disposition, and if a supplemental indenture is
required in connection with such transaction, such supplemental indenture, comply with
the requirements of this Supplemental Indenture and that all conditions precedent
therein relating to such transaction have been complied with and that this
Supplemental Indenture and the Guarantees constitute legal, valid and binding
obligations of the continuing person, enforceable in accordance with their terms; and

     (6) Arch Coal shall have delivered to the Trustee an Opinion of Counsel to the
effect that the Holders will not recognize income, gain or loss for Federal income tax
purposes as a result of such transaction and will be subject to Federal income tax on
the same amounts, in the same manner and at the same times as would have been the case
if such consolidation, merger, transaction or series of transactions had not occurred.

     (c) Arch Coal shall not permit any Guarantor to consolidate with or merge with or into
any Person or sell, assign, transfer, convey or otherwise dispose of, all or substantially all
of its assets, in one or more related transactions, to any Person unless Arch Coal has
delivered to the Trustee an Officers’ Certificate and Opinion of Counsel stating that such
consolidation, merger, transaction or series of transactions complies with the following
conditions and each of the following conditions is satisfied:

     (1) the other Person is Arch Coal or any Wholly Owned Restricted Subsidiary that
is a Guarantor or becomes a Guarantor concurrently with the transaction; or

     (2) (A) either (x) the Guarantor shall be the Surviving Person or (y) the entity
formed by such consolidation or into which the Guarantor is merged, expressly assumes,
by a Guarantee or a supplemental indenture in form satisfactory to the Trustee,
executed and delivered to the Trustee by such surviving Person the due and punctual
performance and observance of all the obligations of such Guarantor under the Note
Guarantee; and

	 	(B)	 	the Surviving Person, if other than the
Guarantor, is a corporation or limited liability company organized
under the laws of the United States, any state thereof or the District
of Columbia and immediately after giving effect to the transaction and
any related

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	 	 	 	Incurrence of Debt of, no Default or Event of Default shall have
occurred and be continuing; or

     (3) the transaction constitutes a sale or other disposition (including by way of
consolidation or merger) of the Guarantor or the sale or disposition of all or
substantially all the assets of the Guarantor (in each case other than to another
Guarantor) and at the time of such transaction after giving pro forma effect thereto,
the provisions of clause (b)(4) of this covenant would be satisfied, the transaction
is otherwise permitted by this Supplemental Indenture and the Guarantor is released
from its Guarantee at the time of such transaction in accordance with this
Supplemental Indenture.

          SECTION 5.02. Successor Substituted. Upon any consolidation or merger, or any sale,
conveyance, transfer, lease or other disposition of all or substantially all of the property and
assets of Arch Coal in accordance with Section 5.01 of this Supplemental Indenture, any Surviving
Person formed by such consolidation or into which Arch Coal is merged or to which such sale,
conveyance, transfer, lease or other disposition is made shall succeed to, and be substituted for,
and may exercise every right and power of, Arch Coal under this Supplemental Indenture (or of the
Guarantor under the Note Guarantee, as the case may be) with the same effect as if such Surviving
Person had been named as Arch Coal (or such Guarantor) herein; provided, however, that Arch Coal
shall not be released from its obligation or covenants under this Supplemental Indenture in the
case of a sale, transfer, assignment, conveyance or other disposition (unless such sale, transfer,
assignment, conveyance or other disposition is of all the assets of Arch Coal as an or virtually as
an entirety) or a lease.

ARTICLE SIX

DEFAULTS AND REMEDIES

          SECTION 6.01. Events of Default. (a) “Event of Default”, wherever used
herein, means any one of the following events (whatever the reason for such Event of Default and
whether it shall be voluntary or involuntary or be effected by operation of law or pursuant to any
judgment, decree or order of any court or any order, rule or regulation of any administrative or
governmental body):

     (i) the failure to make the payment of any interest on the Notes when the
same becomes due and payable, and such default shall continue for a period of 30
days; or

     (ii) the failure to make the payment of principal of, or premium, if any, on
any of the Notes when the same becomes due and payable at its Stated Maturity,
upon acceleration, redemption, optional redemption, required repurchase or
otherwise; or

     (iii) a default in the performance, or breach, of any covenant or agreement
of Arch Coal or any Guarantor under Sections 4.09, 4.11 and 5.01; or

     (iv) a default in the performance, or breach, of any covenant or agreement of
Arch Coal or any Guarantor under this Supplemental Indenture or

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the Guarantees (other than a default in the performance, or breach, of a
covenant or agreement which is specifically dealt with elsewhere in this Section
6.01) and such default or breach shall continue for a period of 60 days after
written notice (the “Notice of Default”) has been given, by registered or
certified mail, (x) to Arch Coal by the Trustee or (y) to Arch Coal and the
Trustee by the Holders of at least 25% in aggregate principal amount of the
outstanding Notes; Arch Coal shall deliver to the Trustee, within 30 days after
the occurrence thereof, written notice in the form of an Officers’ Certificate of
any event that with the giving of notice or the lapse of time or both would become
an Event of Default, its status and what action is being taken or proposed to be
taken with respect thereto; or

     (v) a default under any Debt by Arch Coal or any Restricted Subsidiary that
results in acceleration of the maturity of such Debt, or failure to pay any such
Debt at maturity, in an aggregate amount greater than $75.0 million or its foreign
currency equivalent at the time; or

     (vi) any judgment or judgments for the payment of money in an aggregate
amount in excess of $75.0 million (or its foreign currency equivalent at the time)
that shall be rendered against Arch Coal or any Restricted Subsidiary and that
shall not be waived, satisfied or discharged for any period of 30 consecutive days
during which a stay of enforcement shall not be in effect; or

     (vii) the entry by a court of competent jurisdiction of (A) a decree or order
for relief in respect of Arch Coal, any Guarantor or any other Significant
Subsidiary in an involuntary case or proceeding under any applicable Bankruptcy
Law or (B) a decree or order adjudging Arch Coal, any Guarantor or any other
Significant Subsidiary bankrupt or insolvent, or seeking reorganization,
arrangement, adjustment or composition of or in respect of Arch Coal, any
Guarantor or any other Significant Subsidiary under any applicable law, or
appointing a custodian, receiver, liquidator, assignee, trustee, sequestrator (or
other similar official) of Arch Coal, any Guarantor or any other Significant
Subsidiary or of any substantial part of their respective properties or ordering
the winding up or liquidation of their affairs, and any such decree, order or
appointment pursuant to any Bankruptcy Law for relief shall continue to be in
effect, or any such other decree, appointment or order shall be unstayed and in
effect, for a period of 60 consecutive days; or

     (viii) (A) Arch Coal, any Guarantor or any other Significant Subsidiary (x)
commences a voluntary case or proceeding under any applicable Bankruptcy Law or
any other case or proceeding to be adjudicated bankrupt or insolvent or (y)
consents to the filing of a petition, application, answer or consent seeking
reorganization or relief under any applicable Bankruptcy Law, (B) Arch Coal, any
Guarantor or any other Significant Subsidiary consents to the entry of a decree or
order for relief in respect of Arch Coal, any Guarantor or any other Significant
Subsidiary in an involuntary case or proceeding under any applicable Bankruptcy
Law or to the commencement of any bankruptcy or

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insolvency case or proceeding against it or, (C) Arch Coal, any Guarantor or
any other Significant Subsidiary (x) consents to the appointment of, or taking
possession by, a custodian, receiver, liquidator, administrator, supervisor,
assignee, trustee, sequestrator or similar official of Arch Coal, any Guarantor or
any other Significant Subsidiary or of any substantial part of their respective
properties, (y) makes an assignment for the benefit of creditors or (z) admits in
writing its inability to pay its debts generally as they become due; or

     (ix) any Note Guarantee shall be held in any judicial proceeding to be
unenforceable or invalid or shall cease for any reason to be in full force and
effect or any Guarantor, or any Person acting on behalf of any Guarantor, shall
deny or disaffirm its obligations under any Note Guarantee; or

     (b) If a Default or an Event of Default occurs and is continuing and is known to a Trust
Officer of the Trustee, the Trustee shall mail to each Holder notice of the Default or Event
of Default within five business days after its occurrence. Except in the case of a Default or
an Event of Default in payment of principal of, premium, if any, on the Notes or interest, if
any, on any Note, the Trustee may withhold the notice to the Holders if and so long as a
committee of its Trust Officers in good faith determines that withholding the notice is in the
interests of the Holders. Arch Coal shall also notify the Trustee within five Business Days
of the occurrence of any Event of Default.

          SECTION 6.02. Acceleration. (a) If an Event of Default with respect to the Notes
(other than an Event of Default specified in Section 6.01(vii) or (viii) above) occurs and is
continuing, then and in every such case the Trustee or the Holders of not less than 25% in
aggregate principal amount of the Notes then outstanding by written notice to Arch Coal (and to the
Trustee if such notice is given by the Holders) may and the Trustee, upon the written request of
such Holders shall, declare the principal amount of all of the outstanding Notes immediately due
and payable, and upon any such declaration such principal amount in respect of the Notes shall
become immediately due and payable.

     (b) If an Event of Default specified in Section 6.01(vii) or (viii) above
occurs and is continuing, then the principal amount of all of the outstanding Notes shall ipso
facto become and be immediately due and payable without any declaration or other act on the
part of the Trustee or any Holder.

     (c) At any time after a declaration of acceleration under this Supplemental Indenture,
but before a judgment or decree for payment of the money due has been obtained by the Trustee,
the Holders of a majority in aggregate principal amount of the outstanding Notes, by written
notice to Arch Coal and the Trustee, may waive all past Defaults and rescind and annul such
declaration of acceleration and its consequences if:

     (1) Arch Coal or the Guarantors have paid or deposited with the Trustee a sum
sufficient to pay:

	 	(A)	 	all overdue interest, if any, on all Notes then
outstanding;

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	 	(B)	 	all unpaid principal of and premium, if any, on
any outstanding Notes that has become due otherwise than by such
declaration of acceleration and interest thereon at the rate borne by
the Notes;
	 
	 	(C)	 	to the extent that payment of such interest is
lawful, interest upon overdue interest, if any, at the rate borne by
the Notes; and
	 
	 	(D)	 	all sums paid or advanced by the Trustee under
this Supplemental Indenture and the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel;

     (2) the rescission would not conflict with any judgment or decree of a court of
competent jurisdiction; and

     (3) all Events of Default, other than the non-payment of amounts of principal of,
premium, if any, and interest, if any, on the Notes that has become due solely by such
declaration of acceleration, have been cured or waived as provided in Section 6.04.

     No such rescission shall affect any subsequent default or impair any right consequent thereon.

     (d) Notwithstanding Section 6.02(c) above, in the event of a declaration of acceleration
in respect of the Notes because of an Event of Default specified in Section 6.01(a)(v) shall
have occurred and be continuing, such declaration of acceleration shall be automatically
annulled if the Indebtedness that is the subject of such Event of Default has been discharged
or the Holders thereof have rescinded their declaration of acceleration in respect of such
Indebtedness, and written notice of such discharge or rescission, as the case may be, shall
have been given to the Trustee by Arch Coal and countersigned by the Holders of such
Indebtedness or a trustee, fiduciary or agent for such Holders, within 30 days after such
declaration of acceleration in respect of the Notes, and no other Event of Default has
occurred during such 30-day period which has not been cured or waived during such period.

     (e) Subject to the Article Seven this Supplemental Indenture relating to the duties of
the Trustee, in case an Event of Default shall occur and be continuing, the Trustee will be
under no obligation to exercise any of its rights or powers under this Supplemental Indenture
at the request or direction of any of the Holders, unless such Holders shall have offered to
the Trustee reasonable indemnity. Subject to such provisions for the indemnification of the
Trustee, the Holders of at least a majority in aggregate principal amount of the Notes then
outstanding will have the right to direct the time, method and place of conducting any
proceeding for any remedy available to the Trustee or exercising any trust or power conferred
on the Trustee with respect to the Notes.

          No holder of Notes will have any right to institute any proceeding with respect to this
Supplemental Indenture, or for the appointment of a receiver or trustee, or for any remedy
thereunder, unless:

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     (1) such holder has previously given to the Trustee written notice of a
continuing Event of Default;

     (2) the registered Holders of at least 25% in aggregate principal amount of the
Notes then outstanding have made a written request and offered reasonable indemnity to
the Trustee to institute such proceeding as Trustee; and

     (3) the Trustee shall not have received from the registered Holders of at least a
majority in aggregate principal amount of the Notes then outstanding a direction
inconsistent with such request and shall have failed to institute such proceeding
within 60 days.

However, such limitations do not apply to a suit instituted by a holder of any Note for enforcement
of payment of the principal of, and premium, if any, or interest on, such Note on or after the
respective due dates expressed in such Note.

          SECTION 6.03. Other Remedies. If an Event of Default occurs and is continuing, the
Trustee may in its discretion proceed to protect and enforce its rights and the rights of the
Holders by such appropriate judicial proceedings as the Trustee shall deem most effectual to
protect and enforce any such rights, whether for the specific enforcement of any covenant or
agreement in this Supplemental Indenture or in aid of the exercise of any power granted herein, or
to enforce any other proper remedy.

     All rights of action and claims under this Supplemental Indenture or the Notes may be
prosecuted and enforced by the Trustee without the possession of any of the Notes or the production
thereof in any proceeding relating thereto, and any such proceeding instituted by the Trustee shall
be brought in its own name and as trustee of an express trust, and any recovery of judgment shall,
after provision for the payment of the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders in
respect of which such judgment has been recovered.

          SECTION 6.04. Waiver of Past Defaults. The Holders of not less than a majority in
principal amount of the outstanding Notes may on behalf of the Holders of all the Notes waive any
past Default hereunder and its consequences, except a Default:

     (a) in respect of the payment of the principal of (or premium, if any), or interest on,
any Note, or

     (b) in respect of a covenant or provision hereof which under Article Nine cannot be
modified or amended without the consent of the Holder of each outstanding Note affected.

     Upon any such waiver, such Default shall cease to exist, and any Event of Default arising
therefrom shall be deemed to have been cured, for every purpose of this Supplemental Indenture; but
no such waiver shall extend to any subsequent or other Default or Event of Default or impair any
right consequent thereon.

          SECTION 6.05. Control by Majority. The Holders of not less than a majority in
aggregate principal amount of the Notes may direct the time, method and place of

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conducting any proceeding for any remedy available to the Trustee or of exercising any trust
or power conferred on the Trustee under this Supplemental Indenture; provided that:

     (a) the Trustee may refuse to follow any direction that conflicts with law, this
Supplemental Indenture or that the Trustee determines in good faith may be unduly prejudicial
to the rights of Holders not joining in the giving of such direction;

     (b) the Trustee may refuse to follow any direction that the Trustee determines is unduly
prejudicial to the rights of other Holders or would involve the Trustee in personal liability;
and

     (c) the Trustee may take any other action deemed proper by the Trustee that is not
inconsistent with such direction.

     Prior to taking or not taking any action hereunder, the Trustee shall be entitled to
indemnification satisfactory to it in its sole discretion against all losses and expenses caused by
taking or not taking such action.

          SECTION 6.06. Limitation on Suits. A Holder may not pursue any remedy with respect to
this Supplemental Indenture or the Notes unless:

     (a) the Holder has previously given the Trustee written notice of a continuing Event of
Default;

     (b) the Holders of at least 25% in aggregate principal amount of outstanding Notes shall
have made a written request to the Trustee to pursue such remedy;

     (c) such Holder or Holders offer the Trustee indemnity reasonably satisfactory to the
Trustee against any costs, liability or expense;

     (d) the Trustee does not comply with the request within 60 days after receipt of the
request and the offer of indemnity; and

     (e) during such 60-day period, the Holders of a majority in aggregate principal amount of
the outstanding Notes do not give the Trustee a direction that is inconsistent with the
request.

     The limitations in the foregoing provisions of this Section 6.06, however, do not apply to a
suit instituted by a Holder for the enforcement of the payment of the principal of, premium, if
any, or interest, if any, on such Note on or after the respective due dates expressed in such Note.

     A Holder may not use this Supplemental Indenture to prejudice the rights of any other Holder
or to obtain a preference or priority over another Holder.

          SECTION 6.07. Unconditional Right of Holders to Receive Payment. Notwithstanding any
other provision of this Supplemental Indenture, the right of any Holder to receive payment of
principal of, premium, if any, and interest, if any, on the Notes held by such Holder, on or after
the respective due dates expressed in the Notes, or to bring suit for the

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enforcement of any such payment on or after such respective dates, shall not be impaired or
affected without the consent of such Holder.

          SECTION 6.08. Collection Suit by Trustee. Arch Coal covenants that if default is made
in the payment of:

     (a) any installment of interest on any Note when such interest becomes due and payable
and such default continues for a period of 30 days, or

     (b) the principal of (or premium, if any, on) any Note at the Maturity thereof,

Arch Coal shall, upon demand of the Trustee, pay to the Trustee for the benefit of the Holders of
such Notes, the whole amount then due and payable on such Notes for principal (and premium, if
any), and interest, and interest on any overdue principal (and premium, if any) and, to the extent
that payment of such interest shall be legally enforceable, upon any overdue installment of
interest, at the rate borne by the Notes, and, in addition thereto, such further amount as shall be
sufficient to cover the amounts provided for in Section 7.07 and such further amount as shall be
sufficient to cover the costs and expenses of collection, including the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel.

     (c) If Arch Coal fails to pay such amounts forthwith upon such demand, the Trustee, in
its own name as trustee of an express trust, may institute a judicial proceeding for the
collection of the sums so due and unpaid, may prosecute such proceeding to judgment or final
decree and may enforce the same against Arch Coal or any other obligor upon the Notes and
collect the moneys adjudged or decreed to be payable in the manner provided by law out of the
property of Arch Coal or any other obligor upon the Notes, wherever situated.

          SECTION 6.09. Trustee May File Proofs of Claim. The Trustee may file such proofs of
claim and other papers or documents as may be necessary or advisable in order to have the claims of
the Trustee (including any claim for the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under
Section 7.07) and the Holders allowed in any judicial proceedings relative to Arch Coal or any
Guarantor, their creditors or their property and, unless prohibited by law or applicable
regulations, may vote on behalf of the Holders at their direction in any election of a trustee in
bankruptcy or other Person performing similar functions, and any Custodian in any such judicial
proceeding is hereby authorized by each Holder to make payments to the Trustee and, in the event
that the Trustee shall consent to the making of such payments directly to the Holders, to pay to
the Trustee any amount due it for the reasonable compensation, expenses, disbursements and advances
of the Trustee, its agents and its counsel, and any other amounts due the Trustee under Section
7.07.

     Nothing herein contained shall be deemed to empower the Trustee to authorize or consent to, or
accept or adopt on behalf of any Holder, any plan of reorganization, arrangement, adjustment or
composition affecting the Notes or the rights of any Holder thereof, or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding.

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          SECTION 6.10. Application of Money Collected. If the Trustee collects any money or
other property (or the same is distributed) pursuant to this Article Six, it shall pay out the
money or property in the following order:

FIRST: to the Trustee (including any predecessor Trustee) for amounts due under Section 7.07;

SECOND: to Holders for amounts due and unpaid on the Notes for principal of, premium, if any, and
interest, if any, ratably, without preference or priority of any kind, according to the amounts due
and payable on the Notes for principal, premium, if any, and interest, if any, respectively; and

THIRD: to Arch Coal, any Guarantor or any other obligors of the Notes, as their interests may
appear, or as a court of competent jurisdiction may direct.

     The Trustee may fix a Record Date and payment date for any payment to Holders pursuant to this
Section 6.10. At least 15 days before such Record Date, Arch Coal shall mail to each Holder and
the Trustee a notice that states the Record Date, the payment date and amount to be paid.

          SECTION 6.11. Undertaking for Costs. A court may in its discretion require, in any
suit for the enforcement of any right or remedy under this Supplemental Indenture or in any suit
against the Trustee for any action taken or omitted by it as Trustee, the filing by any party
litigant in the suit of an undertaking to pay the costs of such suit, and such court may in its
discretion assess reasonable costs, including reasonable attorneys’ fees, against any party
litigant in such suit, having due regard to the merits and good faith of the claims or defenses
made by the party litigant. This Section 6.11 does not apply to a suit by the Trustee, a suit by
Holders of more than 10% in aggregate principal amount of the outstanding Notes or to any suit by
any Holder pursuant to Section 6.07.

          SECTION 6.12. Restoration of Rights and Remedies. If the Trustee or any Holder has
instituted any proceeding to enforce any right or remedy under this Supplemental Indenture and such
proceeding has been discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then and in every such case, subject to any determination in such
proceeding, Arch Coal, any Guarantor, the Trustee and the Holders shall be restored severally and
respectively to their former positions hereunder and thereafter all rights and remedies of the
Trustee and the Holders shall continue as though no such proceeding had been instituted.

          SECTION 6.13. Rights and Remedies Cumulative. Except as otherwise provided with
respect to the replacement or payment of mutilated, destroyed, lost or stolen Notes in Section
2.07, no right or remedy herein conferred upon or reserved to the Trustee or to the Holders is
intended to be exclusive of any other right or remedy, and every right and remedy shall, to the
extent permitted by law, be cumulative and in addition to every other right and remedy given
hereunder or now or hereafter existing at law or in equity or otherwise. The assertion of any
right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment
of any other appropriate right or remedy.

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          SECTION 6.14. Delay or Omission Not Waiver. No delay or omission of the Trustee or of
any Holder of any Note to exercise any right or remedy accruing upon any Event of Default shall
impair any such right or remedy or constitute a waiver of any such Event of Default or an
acquiescence therein. Every right and remedy given by this Article Six or by law to the Trustee or
to the Holders may be exercised from time to time, and as often as may be deemed expedient, by the
Trustee or by the Holders, as the case may be.

          SECTION 6.15. Record Date. Arch Coal may set a Record Date for purposes of
determining the identity of Holders entitled to vote or to consent to any action by vote or consent
authorized or permitted by Sections 6.04, 6.05 and 11.04. Unless this Supplemental Indenture
provides otherwise, such Record Date shall be the later of 30 days prior to the first solicitation
of such consent or the date of the most recent list of Holders furnished to the Trustee pursuant to
Section 2.05 prior to such solicitation.

          SECTION 6.16. Waiver of Stay or Extension Laws. Arch Coal covenants (to the extent
that it may lawfully do so) that it shall not at any time insist upon, or plead, or in any manner
whatsoever claim or take the benefit or advantage of, any stay or extension law wherever enacted,
now or at any time hereafter in force, which may affect the covenants or the performance of this
Supplemental Indenture; and Arch Coal (to the extent that it may lawfully do so) hereby expressly
waives all benefit or advantage of any such law and covenants that it shall not hinder, delay or
impede the execution of any power herein granted to the Trustee, but shall suffer and permit the
execution of every such power as though no such law had been enacted.

ARTICLE SEVEN

TRUSTEE

          SECTION 7.01. Duties of Trustee. (a) If an Event of Default has occurred and is
continuing of which a Trust Officer of the Trustee has actual knowledge, the Trustee shall exercise
such of the rights and powers vested in it by this Supplemental Indenture, and use the same degree
of care and skill in their exercise as a prudent person would exercise or use under the
circumstances in the conduct of such person’s own affairs;

     (b) except during the continuance of an Event of Default of which a Trust Officer of the
Trustee has actual knowledge: (i) the Trustee undertakes to perform such duties and only such
duties as are specifically set forth in this Supplemental Indenture and no others and no
implied covenants or obligations shall be read into this Supplemental Indenture against the
Trustee; and (ii) in the absence of bad faith on its part, the Trustee may conclusively rely,
as to the truth of the statements and the correctness of the opinions expressed therein, upon
certificates or opinions furnished to the Trustee and conforming to the requirements of this
Supplemental Indenture. In the case of any such certificates or opinions which by any
provisions hereof are specifically required to be furnished to the Trustee, the Trustee shall
examine same to determine whether they conform to the requirements of this Supplemental
Indenture (but need not confirm or investigate the accuracy of mathematical calculations or
other facts stated therein);

     (c) the Trustee shall not be relieved from liability for its own negligent action, its
own negligent failure to act or its own willful misconduct, except that:

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     (1) this paragraph does not limit the effect of paragraph (b) of this Section
7.01;

     (2) the Trustee shall not be liable for any error of judgment made in good faith
by a Trust Officer unless it is proved that the Trustee was negligent in ascertaining
the pertinent facts; and

     (3) the Trustee shall not be liable with respect to any action it takes or omits
to take in good faith in accordance with a direction received by it pursuant to
Section 6.05;

     (d) the Trustee shall not be liable for interest on any money received by it except as
the Trustee may agree in writing with Arch Coal or any Guarantor. Money held in trust by the
Trustee need not be segregated from other funds except to the extent required by law;

     (e) no provision of this Supplemental Indenture shall require the Trustee to expend or
risk its own funds or otherwise incur financial liability in the performance of any of its
duties hereunder or in the exercise of any of its rights or powers, if it shall have
reasonable grounds to believe that repayment of such funds or adequate indemnity against such
risk or liability is not reasonably assured to it; and

     (f) whether or not therein expressly so provided, every provision of this Supplemental
Indenture relating to the conduct or affecting the liability of or affording protection to the
Trustee shall be subject to the provisions of this Section 7.01 and to the provisions of the
TIA.

          SECTION 7.02. Certain Rights of Trustee. (a) Subject to Section 7.01:

     (1) the Trustee may rely, and shall be protected in acting or refraining from
acting, upon any resolution, certificate, statement, instrument, opinion, report,
notice, request, direction, consent, order, bond, debenture, note, other evidence of
indebtedness or other paper or document believed by it to be genuine and to have been
signed or presented by the proper person;

     (2) before the Trustee acts or refrains from acting, it may require an Officers’
Certificate or an Opinion of Counsel, which shall conform to Section 12.05. The
Trustee shall not be liable for any action it takes or omits to take in good faith in
reliance on such certificate or opinion;

     (3) the Trustee may act through its attorneys and agents and shall not be
responsible for the misconduct or negligence of any attorney or agent appointed with
due care by it hereunder;

     (4) the Trustee shall be under no obligation to exercise any of the rights or
powers vested in it by this Supplemental Indenture at the request or direction of any
of the Holders, unless such Holders shall have offered to the Trustee reasonable
security or indemnity against the costs, expenses and liabilities that might be
incurred by it in compliance with such request or direction;

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     (5) the Trustee shall not be liable for any action it takes or omits to take in
good faith that it believes to be authorized or within its rights or powers, provided
that the Trustee’s conduct does not constitute negligence or bad faith;

     (6) whenever in the administration of this Supplemental Indenture the Trustee
shall deem it desirable that a matter be proved or established prior to taking,
suffering or omitting any action hereunder, the Trustee (unless other evidence be
herein specifically prescribed) may, in the absence of bad faith on its part, rely
upon an Officers’ Certificate;

     (7) the Trustee shall not be bound to make any investigation into the facts or
matters stated in any resolution, certificate, statement, instrument, opinion, report,
notice, request, direction, consent, order, bond, debenture, note, other evidence of
indebtedness or other paper or document, but the Trustee, in its discretion, may make
such further inquiry or investigation into such facts or matters as it may see fit,
and, if the Trustee shall determine to make such further inquiry or investigation, it
shall be entitled to examine the books, records and premises of Arch Coal personally
or by agent or attorney;

     (8) the rights, privileges, protections, immunities and benefits given to the
Trustee, including, without limitation, its right to be indemnified, are extended to,
and shall be enforceable by, the Trustee in each of its capacities hereunder, and each
agent, custodian and other Person employed to act hereunder; and the permissive right
of the Trustee to take any action under this Supplemental Indenture or under any other
agreement in connection herewith shall not be construed as a duty;

     (9) each Guarantor shall pay on demand to the Trustee any and all costs, fees and
expenses (including without limitation, reasonable legal fees of counsel) incurred by
the Trustee in enforcing any rights under any Guarantee;

     (10) the Trustee shall not be deemed to have notice of any Default or Event of
Default unless a Trust Officer of the Trustee has actual knowledge thereof or unless
written notice of any event which is in fact such a default is received by the Trustee
at the Corporate Trust Office of the Trustee, and such notice references the Notes and
this Supplemental Indenture;

     (11) the permissive right of the Trustee to take any action under this
Supplemental Indenture or under any other agreement in connection herewith shall not
be construed as a duty;

     (12) unless otherwise specifically provided in this Supplemental Indenture, any
demand, request, direction or notice from Arch Coal shall be sufficient if signed by
an Officer of Arch Coal; and

     (13) the trustee may consult with counsel and the advice of such counsel or any
Opinion of Counsel shall be full and complete authorization and

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protection from liability in respect of any action taken, suffered or omitted by
it hereunder in good faith and in reliance thereon.

     (b) The Trustee may request that Arch Coal deliver an Officers’ Certificate setting forth
the names of the individuals and/or titles of officers authorized at such time to take
specified actions pursuant to this Supplemental Indenture, which Officers’ Certificate may be
signed by any person authorized to sign an Officers’ Certificate, including any person
specified as so authorized in any such certificate previously delivered and not superseded.

          SECTION 7.03. Individual Rights of Trustee. The Trustee, any Paying Agent, any
Registrar or any other agent of Arch Coal or of the Trustee, in its individual or any other
capacity, may become the owner or pledgee of Notes and, subject to TIA Sections 310(b) and 311, may
otherwise deal with Arch Coal with the same rights it would have if it were not Trustee, Paying
Agent, Registrar or such other agent.

          SECTION 7.04. Trustee’s Disclaimer. The recitals contained herein and in the Notes,
except for the Trustees certificates of authentication, shall be taken as the statements of Arch
Coal, 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 of the Notes,
except that the Trustee represents that it is duly authorized to execute and deliver this
Supplemental Indenture, authenticate the Notes and perform its obligations hereunder and agrees
that the statements made by it in a Statement of Eligibility on Form T-1 supplied to Arch Coal will
be true and accurate, subject to the qualifications set forth therein. The Trustee shall not be
accountable for the use or application by Arch Coal of Notes or the proceeds thereof. It shall not
be responsible for the use or application of any money received by any Paying Agent other than the
Trustee, and it shall not be responsible for any statement or recital herein or any statement in
the Notes or any other document in connection with the issuance or sale of the Notes or pursuant to
this Supplemental Indenture other than its certificate of authentication.

          SECTION 7.05. Notice of Defaults. If any Default or any Event of Default occurs and
is continuing and if such Default or Event of Default is known to the Trustee, the Trustee shall
mail to each Holder in the manner and to the extent provided in TIA Section 313(c) notice of the
Default or Event of Default within 45 days after it occurs, unless such Default or Event of Default
has been cured; provided, however, that, except in the case of a default in the payment of the
principal of, premium, if any, or interest on any Note, the Trustee shall be protected in
withholding such notice if and so long as a committee of its Trust Officers in good faith determine
that the withholding of such notice is in the interest of the Holders.

     The Trustee shall not be deemed to have knowledge of a Default unless a Trust Officer has
actual knowledge of such Default or written notice of such Default has been received by the Trustee
at the Corporate Trust Office, and such notice references the Notes and this Supplemental
Indenture.

          SECTION 7.06. Reports by Trustee to Holders. Within 60 days after January 1 of each
year commencing with the first January 1 after the Issue Date, the Trustee shall transmit to the
Holders, in the manner and to the extent provided in TIA Section 313(c), a brief

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report dated as of such date that complies with TIA Section 313(a). The Trustee also shall
comply with TIA Section 313(b) and (c).

     Arch Coal shall promptly notify the Trustee whenever the Notes become listed on any securities
exchange and of any delisting thereof and the Trustee shall comply with TIA Section 313(d).

          SECTION 7.07. Compensation and Indemnity. Arch Coal, failing which each Guarantor,
shall pay to the Trustee such compensation as shall be agreed in writing for its services
hereunder. The Trustee’s compensation shall not be limited by any law on compensation of a trustee
of an express trust. Arch Coal, failing which each Guarantor, shall reimburse the Trustee upon
request for all reasonable out-of-pocket expenses incurred or made by it, including costs of
collection, in addition to the compensation for its services. Such expenses shall include the
reasonable compensation and out-of-pocket expenses of the Trustee’s agents and counsel.

     Arch Coal, failing which each Guarantor, shall indemnify the Trustee (in any of its capacities
in connection with any of the transactions contemplated hereby, including, without limitation,
under this Supplemental Indenture) and its officers, directors, employees and agents for, and hold
it and them harmless from and against any and all loss, liability or expense (including attorneys’
fees and expenses) incurred by it or any of them without willful misconduct or negligence on its
part arising out of or in connection with the administration of this trust and the performance of
its duties hereunder (including the costs and expenses of enforcing this Supplemental Indenture
including this Section 7.07 and of defending itself against any claim, whether asserted by Arch
Coal, the Guarantors, any Holder or any other Person). The Trustee shall notify Arch Coal promptly
of any claim for which it may seek indemnity. Failure by the Trustee to so notify Arch Coal shall
not relieve Arch Coal or the Guarantors of their obligations hereunder. Arch Coal shall defend the
claim and the Trustee shall cooperate in such defense. The Trustee may have separate counsel and
Arch Coal shall pay the fees and expenses of such counsel. Arch Coal need not pay for any
settlement made without its consent, which consent may not be unreasonably withheld. Arch Coal
shall not reimburse any expense or indemnify against any loss, liability or expense incurred by the
Trustee through the Trustee’s own willful misconduct or negligence.

     To secure Arch Coal’s and each of the Guarantor’s payment obligations in this Section 7.07,
the Trustee shall have a Lien prior to the Notes upon the Collateral and on all money or property
held or collected by the Trustee, hereunder, in its capacity as Trustee, except money or property
held in trust to pay principal of, premium, if any, and interest on particular Notes.

     When the Trustee incurs expenses after the occurrence of a Default specified in Section
6.01(a)(vii) or (viii) with respect to Arch Coal, the Guarantors, or any Restricted Subsidiary, the
expenses are intended to constitute expenses of administration under Bankruptcy Law.

     Arch Coal’s and each of the Guarantor’s obligations under this Section 7.07, including the
Lien and claim of the Trustee, and any claim arising hereunder shall survive the resignation or
removal of any Trustee, the satisfaction and discharge of Arch Coal’s or Guarantor’s obligations
pursuant to Article Eight and any rejection or termination under any Bankruptcy

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Law, and the termination of this Supplemental Indenture for any reason, and shall apply with
equal force and effect to the Trustee in each of its capacities hereunder and each agent, custodian
and other Person employed to act hereunder.

     “Trustee” for purposes of this Section 7.07 shall include any predecessor Trustee; provided,
however, that the negligence or willful misconduct of any Trustee hereunder shall not affect the
rights of any other Trustee hereunder.

          SECTION 7.08. Replacement of Trustee. A resignation or removal of the Trustee and
appointment of a successor Trustee shall become effective only upon the successor Trustee’s
acceptance of appointment as provided in this Section 7.08.

     The Trustee may resign at any time by so notifying Arch Coal. The Holders of a majority in
outstanding principal amount of the outstanding Notes may remove the Trustee by so notifying the
Trustee and Arch Coal. Arch Coal shall remove the Trustee if:

          (a) the Trustee fails to comply with Section 7.10;

          (b) the Trustee is adjudged bankrupt or insolvent;

          (c) a receiver or other public officer takes charge of the Trustee or its property; or

          (d) the Trustee otherwise becomes incapable of acting.

     If the Trustee resigns or is removed, or if a vacancy exists in the office of Trustee for any
reason, Arch Coal shall promptly appoint a successor Trustee. Within one year after the successor
Trustee takes office, the Holders of a majority in principal amount of the outstanding Notes may
appoint a successor Trustee to replace the successor Trustee appointed by Arch Coal. If the
successor Trustee does not deliver its written acceptance required by the next succeeding paragraph
of this Section 7.08 within 30 days after the retiring Trustee resigns or is removed, the retiring
Trustee, Arch Coal or the Holders of a majority in principal amount of the outstanding Notes may,
at the expense of Arch Coal, petition any court of competent jurisdiction for the appointment of a
successor Trustee.

     A successor Trustee shall deliver a written acceptance of its appointment to the retiring
Trustee and to Arch Coal. Thereupon the resignation or removal of the retiring Trustee shall
become effective, and the successor Trustee shall have all the rights, powers and duties of the
Trustee under this Supplemental Indenture. The successor Trustee shall mail a notice of its
succession to Holders. The retiring Trustee shall promptly transfer all property held by it as
Trustee to the successor Trustee.

     If a successor Trustee does not take office within 60 days after the retiring Trustee resigns
or is removed, the retiring Trustee, Arch Coal or the Holders of at least 25% in outstanding
principal amount of the Notes may, at Arch Coal’s expense, petition any court of competent
jurisdiction for the appointment of a successor Trustee at the expense of Arch Coal.

     If the Trustee fails to comply with Section 7.10, any Holder may petition any court of
competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee.

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     The retiring Trustee shall promptly transfer all property held by it as Trustee to the
successor Trustee, provided that all sums owing to the retiring Trustee hereunder have been paid
and subject to the lien provided for in Section 7.07. Notwithstanding the replacement of the
Trustee pursuant to this Section 7.08, Arch Coal’s and the Guarantors’ obligations under Section
7.07 shall continue for the benefit of the retiring Trustee.

          SECTION 7.09. Successor Trustee by Merger. Any corporation into which the Trustee may
be merged or converted or with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which the Trustee shall be a party, or any corporation
succeeding to all or substantially all of the corporate trust business of the Trustee, shall be the
successor of the Trustee hereunder, provided such corporation shall be otherwise qualified and
eligible under this Article Seven, without the execution or filing of any paper or any further act
on the part of any of the parties hereto. In case any Notes shall have been authenticated, but not
delivered, by the Trustee then in office, any successor by merger, conversion or consolidation to
such authenticating Trustee may adopt such authentication and deliver the Notes so authenticated
with the same effect as if such successor Trustee had itself authenticated such Notes. In case at
that time any of the Notes shall not have been authenticated, any successor Trustee may
authenticate such Notes either in the name of any predecessor hereunder or in the name of the
successor Trustee. In all such cases such certificates shall have the full force and effect which
this Supplemental Indenture provides for the certificate of authentication of the Trustee shall
have; provided, however, that the right to adopt the certificate of authentication of any
predecessor Trustee or to authenticate Notes in the name of any predecessor Trustee shall apply
only to its successor or successors by merger, conversion or consolidation.

          SECTION 7.10. Eligibility: Disqualification. The Trustee shall at all times satisfy
the requirements of TIA Section 310(a)(1) and (5). The Trustee shall have a combined capital and
surplus of at least $50,000,000 as set forth in its most recent published annual report of
condition. No obligor upon the Notes or Person directly controlling, controlled by, or under
common control with such obligor shall serve as trustee upon the Notes. The Trustee shall comply
with TIA Section 310(b); provided, however, that there shall be excluded from the operation of TIA
Section 310(b)(1) any indenture or indentures under which other securities or certificates of
interest or participation in other notes of Arch Coal are outstanding if the requirements for such
exclusion set forth in TIA Section 310(b)(1) are met.

     For purposes of Section 310(b)(1) of the TIA and to the extent permitted thereby, the Trustee,
in its capacity as trustee in respect of the Securities of any series, shall not be deemed to have
a conflict of interest arising from its capacity as trustee in respect of the Securities of any
other series.

     Nothing herein shall prevent the Trustee from filing with the Commission the application
referred to in the second to last paragraph of Section 310(b) of the TIA.

     If the Trustee has or shall acquire a conflicting interest within the meaning of the TIA, the
Trustee shall either eliminate such interest or resign, to the extent and in the manner provided
by, and subject to the provisions of, the Trust Indenture Act and this Supplemental Indenture.

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          SECTION 7.11. Preferential Collection of Claims Against Arch Coal. The Trustee shall
comply with TIA Section 311(a), excluding any creditor relationship listed in TIA Section 311(b).
A Trustee who has resigned or been removed shall be subject to TIA Section 311(a) to the extent
indicated therein.

          SECTION 7.12. Appointment of Co-Trustee. (a) It is the purpose of this Supplemental
Indenture that there shall be no violation of any law of any jurisdiction denying or restricting
the right of banking corporations or associations to transact business as trustee in such
jurisdiction. It is recognized that in case of litigation under this Supplemental Indenture, and
in particular in case of the enforcement thereof on default, or in the case the Trustee deems that
by reason of any present or future law of any jurisdiction it may not exercise any of the powers,
rights or remedies herein granted to the Trustee or hold title to the properties, in trust, as
herein granted or take any action which may be desirable or necessary in connection therewith, it
may be necessary that the Trustee appoint an individual or institution as a separate or co-trustee.
The following provisions of this Section 7.12 are adopted to these ends.

     (b) In the event that the Trustee appoints an additional individual or institution as a
separate or co-trustee, each and every remedy, power, right, claim, demand, cause of action,
immunity, estate, title, interest and Lien expressed or intended by this Supplemental
Indenture to be exercised by or vested in or conveyed to the Trustee with respect thereto
shall be exercisable by and vest in such separate or co-trustee but only to the extent
necessary to enable such separate or co-trustee to exercise such powers, rights and remedies,
and only to the extent that the Trustee by the laws of any jurisdiction is incapable of
exercising such powers, rights and remedies, and every covenant and obligation necessary to
the exercise thereof by such separate or co-trustee shall run to and be enforceable by either
of them.

     (c) Should any instrument in writing from Arch Coal be required by the separate or
co-trustee so appointed by the Trustee for more fully and certainly vesting in and confirming
to him or it such properties, rights, powers, trusts, duties and obligations, any and all such
instruments in writing shall, on request, be executed, acknowledged and delivered by Arch
Coal; provided, however, that if an Event of Default shall have occurred and be continuing, if
Arch Coal does not execute any such instrument within 15 days after request therefor, the
Trustees shall be empowered as an attorney-in-fact for Arch Coal to execute any such
instrument in Arch Coal’s name and stead. In case any separate or co-trustee or a successor
to either shall die, become incapable or acting, resign or be removed, all the estates,
properties, rights, powers, trusts, duties and obligations of such separate or co-trustee, so
far as permitted by law, shall vest in and be exercised by the Trustee until the appointment
of a new trustee or successor to such separate or co-trustee.

     (d) Each separate trustee and co-trustee shall, to the extent permitted by law, be
appointed and act subject to the following provisions and conditions:

     (1) all rights and powers, conferred or imposed upon the Trustee shall be
conferred or imposed upon and may be exercised or performed by such separate trustee
or co-trustee; and

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     (2) no trustee hereunder shall be personally liable by reason of any act or
omission of any other trustee hereunder.

     (e) Any notice, request or other writing given to the Trustee shall be deemed to have
been given to each of the then separate trustees and co-trustees, as effectively as if given
to each of them. Every instrument appointing any separate trustee or co-trustee shall refer
to this Supplemental Indenture and the conditions of this Article Seven.

     (f) Any separate trustee or co-trustee may at any time appoint the Trustee as its agent
or attorney-in-fact with full power and authority, to the extent not prohibited by law, to do
any lawful act under or in respect of this Supplemental Indenture on its behalf and in its
name. If any separate trustee or co-trustee shall die, become incapable of acting, resign or
be removed, all of its estates, properties, rights, remedies and trusts shall vest in and be
exercised by the Trustee, to the extent permitted by law, without the appointment of a new or
successors trustee.

ARTICLE EIGHT

DEFEASANCE; SATISFACTION AND DISCHARGE

          SECTION 8.01. Arch Coal’s Option to Effect Defeasance or Covenant Defeasance. Arch
Coal may, at its option by a resolution of the Boards of Directors, at any time, with respect to
the Notes, elect to have either Section 8.02 or 8.03 be applied to outstanding Notes upon
compliance with the conditions set forth below this Article Eight.

          SECTION 8.02. Defeasance and Discharge. Upon Arch Coal’s exercise
under Section 8.01 of the option applicable to this Section 8.02, Arch Coal shall be
deemed to have been discharged from its obligations with respect to the Notes on the
date the conditions set forth in Section 8.04 are satisfied (hereinafter, “legal
defeasance”). For this purpose, such legal defeasance means that Arch Coal shall
be deemed to have paid and discharged the entire indebtedness represented by the Notes
and to have satisfied all its other obligations under the Notes and this Supplemental
Indenture (and the Trustee, at the expense of Arch Coal, shall execute proper
instruments acknowledging the same), except for the following which shall survive
until otherwise terminated or discharged hereunder: (a) the rights of Holders of Notes
to receive, solely from the trust fund described in Section 8.08 and as more fully set
forth in such Section, payments in respect of the principal of (and premium, if any,
on) and interest on such Notes when such payments are due, (b) the provisions set
forth in Section 8.06 below and (c) the rights, powers, trusts, duties and immunities
of the Trustee hereunder. Subject to compliance with this Article Eight, Arch Coal
may exercise its option under this Section 8.02 notwithstanding the prior exercise of
its option under Section 8.03 below with respect to the Notes. If Arch Coal exercises
its legal defeasance option, payment of the Notes may not be accelerated because of an
Event of Default

          SECTION 8.03. Covenant Defeasance. Upon Arch Coal’s exercise under Section
8.01 of the option applicable to this Section 8.03, Arch Coal shall be released from its
obligations under any covenant contained in Sections 4.04 through 4.15, 4.17
(other than

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the covenants to comply with TIA Section 314(a) to the extent that such
obligations thereunder cannot be terminated), 5.01(b)(4) and 6.01(a)(iv), (v), (vi) and (vii)
(only with respect to Significant Subsidiaries) with respect to the Notes on and after the
date the conditions set forth below are satisfied (hereinafter, “covenant
defeasance”). For this purpose, such covenant defeasance means that, Arch Coal may omit
to comply with and shall have no liability in respect of any term, condition or limitation set
forth in any such covenant, whether directly or indirectly, by reason of any reference
elsewhere herein to any such covenant or by reason of any reference in any such covenant to
any other provision herein or in any other document and such omission to comply shall not
constitute a Default or an Event of Default, but except as specified above, the remainder of
this Supplemental Indenture and such Notes shall be unaffected thereby.

          SECTION 8.04. Conditions to Defeasance. The legal defeasance option or the covenant
defeasance option may be exercised only if:

     (a) Arch Coal irrevocably deposits in trust with the Trustee money or U.S. Government
Obligations for the payment of principal of, premium, if any, and interest on the Notes to
maturity or redemption, as the case may be;

     (b) Arch Coal delivers to the Trustee a certificate from a nationally recognized firm of
independent certified public accountants expressing their opinion that the payments of
principal, premium, if any, and interest when due and without reinvestment on the deposited
U.S. Government Obligations plus any deposited money without investment will provide cash at
such times and in such amounts as will be sufficient to pay principal, premium, if any, and
interest when due on all the Notes to be defeased to maturity or redemption, as the case may
be;

     (c) 123 days pass after the deposit is made, and during the 123-day period, no Default
described in Section 6.01(a)(vii) and (viii) occurs with respect to Arch Coal or any other
Person making such deposit which is continuing at the end of the period;

     (d) no Default or Event of Default has occurred and is continuing on the date of such
deposit and after giving effect thereto;

     (e) such deposit does not constitute a default under any other agreement or instrument
binding on Arch Coal or any of its Restricted Subsidiaries;

     (f) Arch Coal delivers to the Trustee an Opinion of Counsel to the effect that the trust
resulting from the deposit does not constitute, or is qualified as, a regulated investment
company under the Investment Company Act of 1940;

     (g) in the case of the legal defeasance option, Arch Coal delivers to the Trustee an
Opinion of Counsel stating that:

     (1) Arch Coal has received from the Internal Revenue Service a ruling, or

     (2) since the date of this Supplemental Indenture there has been a change in the
applicable Federal income tax law, to the effect that, and based thereon such

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Opinion of Counsel shall confirm that, the Holders of the Notes will not
recognize income, gain or loss for Federal income tax purposes as a result of such
defeasance and will be subject to Federal income tax on the same amounts, in the same
manner and at the same time as would have been the case if such defeasance has not
occurred;

     (h) in the case of the covenant defeasance option, Arch Coal delivers to the Trustee an
Opinion of Counsel to the effect that the Holders of the Notes will not recognize income, gain
or loss for Federal income tax purposes as a result of such covenant defeasance and will be
subject to Federal income tax on the same amounts, in the same manner and at the same times as
would have been the case if such covenant defeasance had not occurred; and

     (i) Arch Coal delivers to the Trustee an Officers’ Certificate and an Opinion of Counsel,
each stating that all conditions precedent to the defeasance and discharge of the Notes have
been complied with as required by this Article Eight.

          SECTION 8.05. Satisfaction and Discharge of Indenture. The Indenture will be
discharged and will cease to be of further effect as to all Notes issued thereunder, when

               (1) either:

	 	(A)	 	all Notes that have been authenticated (except
lost, stolen or destroyed Notes that have been replaced or paid and
Notes for whose payment money has theretofore been deposited in trust
and thereafter repaid to Arch Coal) have been delivered to the Trustee
for cancellation; or
	 
	 	(B)	 	all Notes that have not been delivered to the
Trustee for cancellation are to be called for redemption within one
year and an irrevocable notice of redemption with respect thereto has
been deposited with the Trustee or will become due and payable within
one year and Arch Coal or a Guarantor has irrevocably deposited or
caused to be deposited with the Trustee as trust funds in trust solely
for the benefit of the Holders, cash in U.S. dollars, U.S. Government
Obligations, or a combination thereof, in such amounts as will be
sufficient without consideration of any reinvestment of interest, to
pay and discharge the entire indebtedness on the Notes not delivered to
the Trustee for cancellation for principal, premium, if any, and
accrued interest to the date of maturity or redemption;

     (2) no Default or Event of Default will have occurred and be continuing on the
date of such deposit or will occur as a result of such deposit and such deposit will
not result in a breach or violation of, or constitute a default under, any other
instrument to which Arch Coal or any Guarantor is a party or by which Arch Coal or any
Guarantor is bound;

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     (3) Arch Coal or any Guarantor has paid or caused to be paid all sums payable by
it under the Indenture; and

     (4) Arch Coal has delivered irrevocable instructions to the Trustee under the
Indenture to apply the deposited money toward the payment of the Notes at maturity or
the redemption date, as the case may be.

In addition, Arch Coal must deliver an Officers’ Certificate and an Opinion of Counsel to the
Trustee stating that all conditions precedent to satisfaction and discharge have been satisfied.

          SECTION 8.06. Survival of Certain Obligations. Notwithstanding Sections 8.01 and
8.05, any obligations of Arch Coal and the Guarantors in Sections 2.02 through 2.14, 6.07, 7.07,
7.08, and 8.07 through 8.09 shall survive until the Notes have been paid in full. Thereafter, any
obligations of Arch Coal and the Guarantors in Sections 7.07, 8.07 and 8.08 shall survive such
satisfaction and discharge. Nothing contained in this Article Eight shall abrogate any of the
obligations or duties of the Trustee under this Supplemental Indenture.

          SECTION 8.07. Acknowledgment of Discharge by Trustee. Subject to Section 8.09, after
the conditions of Section 8.01 or 8.04 have been satisfied, the Trustee upon written request shall
acknowledge in writing the discharge of all of Arch Coal’s obligations under this Supplemental
Indenture except for those surviving obligations specified in this Article Eight.

          SECTION 8.08. Application of Trust Money. Subject to Section 8.09, the Trustee shall
hold in trust cash in U.S. Dollars or U.S. Government Obligations deposited with it pursuant to
this Article Eight. It shall apply the deposited cash or U.S. Dollars or U.S. Government
Obligations through the Paying Agent and in accordance with this Supplemental Indenture to the
payment of principal of, premium, if any, interest, on the Notes; but such money need not be
segregated from other funds except to the extent required by law.

          SECTION 8.09. Repayment to Arch Coal. Subject to Sections 7.07, and 8.01 through
8.06, the Trustee and the Paying Agent shall promptly pay to Arch Coal upon request set forth in an
Officers’ Certificate any excess money held by them at any time and thereupon shall be relieved
from all liability with respect to such money. The Trustee and the Paying Agent shall pay to Arch
Coal upon request any money held by them for the payment of principal, premium, if any, that
remains unclaimed for two years; provided that the Trustee or Paying Agent before being required to
make any payment may cause to be published (a) in The Wall Street Journal or another leading
newspaper in New York, New York, (b) through the newswire service of Bloomberg or, if Bloomberg
does not then operate, any similar agency or mail to each Holder entitled to such money at such
Holder’s address (as set forth in the Security Register) notice that such money remains unclaimed
and that after a date specified therein (which shall be at least 30 days from the date of such
publication or mailing) any unclaimed balance of such money then remaining will be repaid to Arch
Coal. After payment to Arch Coal, Holders entitled to such money must look to Arch Coal for
payment as general creditors unless an applicable law designates another Person, and all liability
of the Trustee and such Paying Agent with respect to such money shall cease.

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          SECTION 8.10. Indemnity for Government Securities. Arch Coal shall pay and shall
indemnify the Trustee against any tax, fee or other charge imposed on or assessed against deposited
U.S. Government Obligations or the principal, premium, if any, interest, if any, received on such
U.S. Government Obligations.

          SECTION 8.11. Reinstatement. If the Trustee or Paying Agent is unable to apply cash
in U.S. Dollars or U.S. Government Obligations in accordance with this Article Eight by reason of
any legal proceeding or by reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, Arch Coal’s and the Guarantors’
obligations under this Supplemental Indenture and the Notes shall be revived and reinstated as
though no deposit had occurred pursuant to this Article Eight until such time as the Trustee or any
such Paying Agent is permitted to apply all such U.S. Government Obligations in accordance with
this Article Eight; provided, however, that, if Arch Coal has made any payment of principal of,
premium, if any, and interest, if any, on any Notes because of the reinstatement of its
obligations, Arch Coal shall be subrogated to the rights of the Holders of such Notes to receive
such payment from the cash in U.S. Dollars or U.S. Government Obligations held by the Trustee or
Paying Agent.

ARTICLE NINE

AMENDMENTS AND WAIVERS

          SECTION 9.01. Without Consent of Holders. Arch Coal, when authorized by a resolution
of the Board of Directors (as evidenced by the delivery of such resolution to the Trustee), any
Guarantor and the Trustee may modify, amend or supplement this Supplemental Indenture, any
Guarantee or the Notes without notice to or consent of any Holder to:

     (a) cure any ambiguity, omission, defect or inconsistency in any manner that is not
adverse in any material respect to any Holder of the Notes;

     (b) provide for the assumption by a Surviving Person of the obligations of Arch Coal
under this Supplemental Indenture;

     (c) provide for uncertificated Notes in addition to or in place of certificated Notes
(provided that the uncertificated Notes are issued in registered form for purposes of Section
163(f) of the Code, or in a manner such that the uncertificated Notes are described in Section
163 (f) (2) (B) of the Code);

     (d) add Note Guarantees with respect to the Notes or confirm and evidence the release,
termination or discharge of any security or Note Guarantee when such release, termination or
discharge is permitted by this Supplemental Indenture;

     (e) secure the Notes, add to the covenants of Arch Coal and the Restricted Subsidiaries
for the benefit of the Holders of the Notes or surrender any right or power conferred upon
Arch Coal;

     (f) make any change that does not adversely affect the rights of any Holder of the Notes;

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     (g) comply with any requirement of the Commission in connection with the qualification of
this Supplemental Indenture under the Trust Indenture Act; or

     (h) provide for the issuance of Additional Notes in accordance with this Supplemental
Indenture.

          SECTION 9.02. With Consent of Holders. (a) Notwithstanding Article 9 of the Base
Indenture and except as provided in Section 9.02(b) below and Section 6.04 and without prejudice to
Section 9.01, Arch Coal and the Trustee may:

     (i) amend this Supplemental Indenture, the Notes, or the Note Guarantees; or

     (ii) waive compliance by Arch Coal with any provision of this Supplemental
Indenture or the Notes;

with the written consent of the Holders of at least a majority in aggregate principal amount of the
Notes then outstanding including consents obtained in connection with a tender offer or in exchange
for the Notes.

     (b) Without the consent of each Holder affected thereby, no amendment, modification,
supplement or waiver, including a waiver pursuant to Section 6.04 and an amendment,
modification or supplement pursuant to Section 9.01, may:

     (i) reduce the amount of Notes whose Holders must consent to an amendment or
waiver;

     (ii) reduce the rate of, or extend the time for payment of, interest on any
Note;

     (iii) reduce the principal of, or extend the Stated Maturity of, any Note;

     (iv) make any Note payable in money other than that stated in the Note;

     (v) impair the right of any Holder of the Notes to receive payment of
principal of, premium, if any, and interest, on, such Holder’s Notes on or after
the due dates therefor or to institute suit for the enforcement of any payment on
or with respect to such Holder’s Notes;

     (vi) reduce the premium payable upon the redemption of any Note or change the
time at which any Note may be redeemed, pursuant to Section 3.01 of this
Supplemental Indenture;

     (vii) reduce the premium payable upon a Change of Control or, at any time
after a Change of Control has occurred, change the time at which the

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Change of Control Offer relating thereto must be made or at which the Notes
must be repurchased pursuant to such Change of Control Offer;

     (viii) at any time after Arch Coal is obligated to make a Prepayment Offer
with the Excess Proceeds from Asset Sales, change the time at which such
Prepayment Offer must be made or at which the Notes must be repurchased pursuant
thereto;

     (ix) modify or change any provision of this Supplemental Indenture affecting
the ranking of the Notes or the Note Guarantees in a manner adverse to the Trustee
or the Holders of the Notes; or

     (x) release any Guarantor from any of its obligations under its Note
Guarantee or this Supplemental Indenture other than in accordance with the
provisions of this Supplemental Indenture, or amend or modify any provision
relating to such release.

     The consent of the Holders of the Notes is not necessary to approve the particular form of any
proposed amendment. It is sufficient if such consent approves the substance of the proposed
amendment. After an amendment becomes effective, Arch Coal shall mail to each registered Holder of
the Notes at such Holder’s address appearing in the Security Register a notice briefly describing
such amendment. However, the failure to give such notice to all Holders of the Notes, or any
defect therein, will not impair or affect the validity of the amendment.

     (c) Other than as expressly provided in Section 9.02 above, the Base Indenture may only
be amended, supplemented or otherwise modified as and to the extent provided in the Base
Indenture.

          SECTION 9.03. Compliance with Trust Indenture Act. Every amendment, modification or
supplement to this Supplemental Indenture or the Notes shall be set forth in a supplemental
indenture that complies with the TIA as then in effect.

          SECTION 9.04. Effect of Supplemental Indentures. Upon the execution of any
supplemental indenture under this Article Nine, this Supplemental Indenture shall be modified in
accordance therewith, and such supplemental indenture shall form a part of this Supplemental
Indenture for all purposes; and every Holder theretofore or thereafter authenticated and delivered
hereunder shall be bound thereby.

          SECTION 9.05. Notation on or Exchange of Notes. If an amendment, modification or
supplement changes the terms of a Note, Arch Coal or Trustee may require the Holder to deliver it
to the Trustee. The Trustee may place an appropriate notation on the Note and on any Note
subsequently authenticated regarding the changed terms and return it to the Holder. Alternatively,
if Arch Coal so determines, Arch Coal in exchange for the Note shall issue and the Trustee shall
authenticate a new Note that reflects the changed terms. Failure to make the appropriate notation
or to issue a new Note shall not affect the validity of such amendment, modification or supplement.

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          SECTION 9.06. Payment for Consent. Arch Coal will not, and will not permit any of its
Subsidiaries to, directly or indirectly, pay or cause to be paid any consideration, whether by way
of interest, fee or otherwise, to any Holder of any Notes for or as an inducement to any consent,
waiver or amendment of any of the terms or provisions of the Indenture or the Notes unless such
consideration is offered to be paid or is paid to all Holders of the Notes that consent, waive or
agree to amend in the time frame set forth in the solicitation documents relating to such consent,
waiver or agreement.

          SECTION 9.07. Notice of Amendment or Waiver. Promptly after the execution by Arch
Coal and the Trustee of any supplemental indenture or waiver pursuant to the provisions of Section
9.02, Arch Coal shall give notice thereof to the Holders of each outstanding Note affected, in the
manner provided for in Section 12.02(b), setting forth in general terms the substance of such
supplemental indenture or waiver.

          SECTION 9.08. Trustee to Sign Supplemental Indentures. In executing any supplemental
indenture, the Trustee shall be entitled to receive indemnity reasonably satisfactory to it and to
receive and shall be fully protected in relying upon, in addition to the documents required by
Section 12.04, an Officers’ Certificate and an Opinion of Counsel stating that such supplemental
indenture is authorized or permitted by this Supplemental Indenture and that all conditions
precedent to the execution, delivery and performance of such supplemental indenture have been
satisfied.

     The Trustee shall sign all supplemental indentures that comply with the requirements of this
Supplemental Indenture, except that the Trustee may, but need not, sign any supplemental indenture
that adversely affects its rights.

ARTICLE TEN

GUARANTEE

          SECTION 10.01. Note Guarantee. (a) Each Guarantor hereby fully and unconditionally
guarantees, on an unsecured, senior, joint and several basis with each other Note Guarantee, to
each Holder and to the Trustee and its successors and assigns on behalf of each Holder, the full
payment of principal of, premium, if any, interest, if any, and all other monetary obligations of
Arch Coal under this Supplemental Indenture and the Notes (including obligations to the Trustee)
with respect to each Note authenticated and delivered by the Trustee or its agent pursuant to and
in accordance with this Supplemental Indenture, in accordance with the terms of this Supplemental
Indenture (all the foregoing being hereinafter collectively called the “Obligations”). Each
Guarantor further agrees that the Obligations may be extended or renewed, in whole or in part,
without notice or further assent from such Guarantor and that such Guarantor will remain bound
under this Article Ten notwithstanding any extension or renewal of any Obligation. All payments
under such Guarantee will be made in U.S. Dollars.

     (b) Each Guarantor hereby agrees that its obligations hereunder shall be as if they were
the principal debtor and not merely surety, unaffected by, and irrespective of, any validity,
irregularity or unenforceability of any Note or this Supplemental Indenture, any failure to
enforce the provisions of any Note or this Supplemental Indenture, any waiver, modification or
indulgence granted to Arch Coal with respect thereto by the Holders or the

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Trustee, or any other circumstance which may otherwise constitute a legal or equitable
discharge of a surety or guarantor (except payment in full); provided, however, that,
notwithstanding the foregoing, no such waiver, modification, indulgence or circumstance shall
without the written consent of the Guarantor increase the principal amount of a Note or the
interest rate thereon or change the currency of payment with respect to any Note, or alter the
Stated Maturity thereof. Each Guarantor hereby waives diligence, presentment, demand of
payment, filing of claims with a court in the event of merger or bankruptcy of Arch Coal, any
right to require that the Trustee pursue or exhaust its legal or equitable remedies against
Arch Coal prior to exercising its rights under the Guarantee (including, for the avoidance of
doubt, any right which the Guarantor may have to require the seizure and sale of the assets of
Arch Coal to satisfy the outstanding principal of, interest on or any other amount payable
under each Note prior to recourse against the Guarantor or its assets), protest or notice with
respect to any Note or the Debt evidenced thereby and all demands whatsoever, and covenants
that the Guarantee will not be discharged with respect to any Note except by payment in full
of the principal thereof and interest thereon or as otherwise provided in this Supplemental
Indenture, including Section 10.03. If at any time any payment of principal of, premium, if
any, and interest, if any, on such Note is rescinded or must be otherwise restored or returned
upon the insolvency, bankruptcy or reorganization of Arch Coal, the Guarantor’s obligations
hereunder with respect to such payment shall be reinstated as of the date of such rescission,
restoration or returns as though such payment had become due but had not been made at such
times.

     (c) The Guarantor also agrees to pay any and all costs and expenses (including reasonable
attorneys’ fees) incurred by the Trustee or any Holder in enforcing any rights under this
Section 10.01.

          SECTION 10.02. Subrogation. (a) The Guarantor shall be subrogated to all rights of
the Holders against Arch Coal in respect of any amounts paid to such Holders by the Guarantor
pursuant to the provisions of its Guarantee.

     (b) The Guarantor agrees that it shall not be entitled to any right of subrogation in
relation to the Holders in respect of any Obligations guaranteed hereby until payment in full
of all Obligations. The Guarantor further agrees that, as between themselves, on the one
hand, and the Holders and the Trustee, on the other hand, (x) the maturity of the Obligations
guaranteed hereby may be accelerated as provided in Section 6.02 for the purposes of their
Guarantee herein, notwithstanding any stay, injunction or other prohibition preventing such
acceleration in respect of the Obligations guaranteed hereby, and (y) in the event of any
declaration of acceleration of such obligations as provided in Section 6.02, such Obligations
(whether or not due and payable) shall forthwith become due and payable by the Guarantor for
the purposes of this Section 10.02 subject to Section 10.01(b) above.

     SECTION 10.03. Release of Guarantors. The Guarantee of any Guarantor will be
automatically and unconditionally released and discharged upon any of the following:

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     (a) in the event of a sale or other disposition, by way of merger, consolidation or
otherwise, of the Capital Stock of any Guarantor, after which the applicable Guarantor is no
longer a Restricted Subsidiary, such Guarantor will be released and relieved of any
obligations under its Guarantee; provided that the Net Available Cash from such sale or other
disposition is applied in accordance with the applicable provisions of Section 4.09 of this
Supplemental Indenture;

     (b) upon the release or discharge of the Guarantee of the Credit Agreement or the
Guarantee of a Guarantor that resulted in the creation of the Note Guarantee of such
Guarantor, except a discharge or release by or as a result of payment under such other
Guarantee pursuant to Section 4.13, such Guarantor will be released and relieved of any
obligations under its Note Guarantee;

     (c) upon the designation of any Guarantor as an Unrestricted Subsidiary in accordance
with the terms of this Supplemental Indenture, such Guarantor will be released and relieved of
any obligations under its Note Guarantee; and

     (d) and in each such case, prior to release and discharge or such Note Guarantee, Arch
Coal will have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel,
each stating that all conditions precedent herein provided for relating to such transactions
have been complied with and that such release is authorized and permitted hereunder.

     The Trustee shall execute any documents reasonably requested by either Arch Coal or a
Guarantor in order to evidence the release of such Guarantor from its obligations under its
Guarantee endorsed on the Notes and under this Article Ten.

          SECTION 10.04. Additional Guarantors. Arch Coal covenants and agrees that it shall
cause any Person which becomes obligated to Guarantee the Notes, pursuant to the terms of Section
4.13, to execute a supplemental indenture and any other documentation requested by the Trustee
satisfactory in form and substance to the Trustee in accordance with Section 4.13 pursuant to which
such Restricted Subsidiary shall Guarantee the obligations of Arch Coal under the Notes and this
Supplemental Indenture in accordance with this Article Ten with the same effect and to the same
extent as if such Person had been named herein as a Guarantor.

          SECTION 10.05. Limitation of Guarantee. The Guarantee is limited in an amount not to
exceed the maximum amount that can be guaranteed by the Guarantor without rendering such Guarantee,
as it relates to the Guarantor, voidable under applicable law relating to fraudulent conveyance or
fraudulent transfer of similar laws affecting the rights of the creditors generally.

          SECTION 10.06. Notation Not Required. Neither Arch Coal nor the Guarantor shall be
required to make a notation on the Notes to reflect any Guarantee or any release, termination or
discharge thereof.

          SECTION 10.07. Successors and Assigns. This Article Ten shall be binding upon the
Guarantor and each of their successors and assigns and shall inure to the benefit of the

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successors and assigns of the Trustee and the Holders and, in the event of any transfer or
assignment of rights by any Holder or the Trustee, the rights and privileges conferred upon that
party in this Supplemental Indenture and in the Notes shall automatically extend to and be vested
in such transferee or assigns, all subject to the terms and conditions of this Supplemental
Indenture.

          SECTION 10.08. No Waiver. Neither a failure nor a delay on the part of either the
Trustee or the Holders in exercising any right, power or privilege under this Article Ten shall
operate as a waiver thereof, nor shall a single or partial exercise thereof preclude any other or
further exercise of any right, power or privilege. The rights, remedies and benefits of the
Trustee and the Holders herein expressly specified are cumulative and are not exclusive of any
other rights, remedies or benefits which either may have under this Article Ten at law, in equity,
by statute or otherwise.

          SECTION 10.09. Modification. No modification, amendment or waiver of any provision of
this Article Ten, nor the consent to any departure by the Guarantor therefrom, shall in any event
be effective unless the same shall be in writing and signed by the Trustee, and then such waiver or
consent shall be effective only in the specific instance and for the purpose for which given. No
notice to or demand on the Guarantor in any case shall entitle the Guarantor to any other or
further notice or demand in the same, similar or other circumstance.

ARTICLE ELEVEN

HOLDERS’ MEETINGS

          SECTION 11.01. Purposes of Meetings. A meeting of the Holders may be called at any
time pursuant to this Article Twelve for any of the following purposes:

     (a) to give any notice to Arch Coal or any Guarantor or to the Trustee, or to give any
directions to the Trustee, or to consent to the waiving of any Default hereunder and its
consequences, or to take any other action authorized to be taken by Holders pursuant to
Article Nine;

     (b) to remove the Trustee and appoint a successor trustee pursuant to Article Seven; or

     (c) to consent to the execution of an indenture supplement pursuant to Section 9.02.

          SECTION 11.02. Place of Meetings. Meetings of Holders may be held at such place or
places as the Trustee or, in case of its failure to act, Arch Coal, any Guarantor or the Holders
calling the meeting, shall from time to time determine.

          SECTION 11.03. Call and Notice of Meetings. (a) The Trustee may at any time (upon
not less than 21 days’ notice) call a meeting of Holders to be held at such time and at such place
in St. Louis, Missouri or in such other city as determined by the Trustee pursuant to Section
11.02. Notice of every meeting of Holders, setting forth the time and the place of such meeting
and in general terms the action proposed to be taken at such meeting, shall be mailed to each
Holder and published in the manner contemplated by Section 12.02(b).

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     (b) In case at any time Arch Coal, pursuant to a resolution of the Board of Directors, or
the Holders of at least 10% in aggregate principal amount at maturity of the Notes then
outstanding, shall have requested the Trustee to call a meeting of the Holders, by written
request setting forth in reasonable detail the action proposed to be taken at the meeting, and
the Trustee shall not have made the first giving of the notice of such meeting within 20 days
after receipt of such request, then Arch Coal or the Holders of Notes in the amount above
specified may determine the time (not less than 21 days after notice is given) and the place
in St. Louis, Missouri or in such other city as determined by Arch Coal or the Holders
pursuant to Section 11.02 for such meeting and may call such meeting to take any action
authorized in Section 11.01 by giving notice thereof as provided in Section 11.01(a).

          SECTION 11.04. Voting at Meetings. To be entitled to vote at any meeting of Holders,
a Person shall be (i) a Holder at the relevant Record Date set in accordance with Section 6.15 or
(ii) a Person appointed by an instrument in writing as proxy for a Holder or Holders by such Holder
or Holders. The only Persons who shall be entitled to be present or to speak at any meeting of
Holders shall be the Person so entitled to vote at such meeting and their counsel and any
representatives of the Trustee and its counsel and any representatives of Arch Coal and any
Guarantor and their counsel.

          SECTION 11.05. Voting Rights, Conduct and Adjournment. (a) Notwithstanding any other
provisions of this Supplemental Indenture, the Trustee may make such reasonable regulations as it
may deem advisable for any meeting of Holders in regard to proof of the holding of Notes and of the
appointment of proxies and in regard to the appointment and duties of inspectors of votes, the
submission and examination of proxies, certificates and other evidence of the right to vote, and
such other matters concerning the conduct of the meeting as it shall deem appropriate. Except as
otherwise permitted or required by any such regulations, the holding of Notes shall be proved in
the manner specified in Section 2.03 and the appointment of any proxy shall be proved in such
manner as is deemed appropriate by the Trustee or by having the signature of the Person executing
the proxy witnessed or guaranteed by any bank, banker or trust company customarily authorized to
certify to the holding of a Note such as a Global Note.

     (b) At any meeting of Holders, the presence of Persons holding or representing Notes in
an aggregate principal amount at Stated Maturity sufficient under the appropriate provision of
this Supplemental Indenture to take action upon the business for the transaction of which such
meeting was called shall constitute a quorum. Subject to any required aggregate principal
amount at Stated Maturity of Notes required for the taking of any action pursuant to Article
Nine, in no event shall less than a majority of the votes given by Persons holding or
representing Notes at any meeting of Holders be sufficient to approve an action. Any meeting
of Holders duly called pursuant to Section 11.03 may be adjourned from time to time by vote of
the Holders (or proxies for the Holders) of a majority of the Notes represented at the meeting
and entitled to vote, whether or not a quorum shall be present; and the meeting may be held as
so adjourned without further notice. No action at a meeting of Holders shall be effective
unless approved by Persons holding or representing Notes in the aggregate principal amount at
Stated Maturity required by the provision of this Supplemental Indenture pursuant to which
such action is being taken.

91

 

     (c) At any meeting of Holders, each Holder or proxy shall be entitled to one vote for
each $1,000 aggregate principal amount at Stated Maturity of outstanding Notes held or
represented.

          SECTION 11.06. Revocation of Consent by Holders at Meetings. At any time prior to
(but not after) the evidencing to the Trustee of the taking of any action at a meeting of Holders
by the Holders of the percentage in aggregate principal amount at maturity of the Notes specified
in this Supplemental Indenture in connection with such action, any Holder of a Note the serial
number of which is included in the Notes the Holders of which have consented to such action may, by
filing written notice with the Trustee at its principal Corporate Trust Office and upon proof of
holding as provided herein, revoke such consent so far as concerns such Note. Except as aforesaid,
any such consent given by the Holder of any Note shall be conclusive and binding upon such Holder
and upon all future Holders and owners of such Note and of any Note issued in exchange therefor, in
lieu thereof or upon transfer thereof, irrespective of whether or not any notation in regard
thereto is made upon such Note. Any action taken by the Holders of the percentage in aggregate
principal amount at maturity of the Notes specified in this Supplemental Indenture in connection
with such action shall be conclusively binding upon Arch Coal, the Guarantors, the Trustee and the
Holders. This Section 11.06 shall not apply to revocations of consents to amendments, supplements
or waivers, which shall be governed by the provisions of Section 9.04.

ARTICLE TWELVE

MISCELLANEOUS

          SECTION 12.01. Trust Indenture Act Controls. If and to the extent that any provision
of this Supplemental Indenture limits, qualifies or conflicts with the duties imposed by, or with
another provision (an “incorporated provision”) included in this Supplemental Indenture by
operation of, Sections 310 to 318, inclusive, of the TIA incorporated hereto in accordance with
Section 1.03 hereto, such imposed duties or incorporated provision shall control.

          SECTION 12.02. Notices. (a) Any notice or communication shall be in writing and
delivered in person or mailed by first class mail or sent by facsimile transmission addressed as
follows:

if to Arch Coal, Inc. or any Guarantor:

Arch Coal, Inc.

One CityPlace Drive

Suite 300

St. Louis, Missouri 63141

Telephone: 1-800-238-7398

Facsimile: 314-994-2734

Attention: General Counsel

With copies to:

K&L Gates LLP

92

 

Henry W. Oliver Building

535 Smithfield Street 15222

Pittsburgh, PA

Attention: Ronald West

if to the Trustee:

U.S. Bank National Association

One U.S. Bank Plaza

Mail Code SL-MO-T6CT

St. Louis, Missouri 63101

Telephone: 314-418-3943

Facsimile: 314-418-1225

Attention: Corporate Trust Department

     Arch Coal, the Guarantors or the Trustee by notice to the other may designate additional or
different addresses for subsequent notices or communications. All communications delivered to the
Trustee shall be deemed effective when received.

     (b) Notices to the Holders regarding the Notes shall be mailed to each Holder by
first-class mail at such Holder’s respective address as it appears on the registration books
of the Registrar.

     Notices given by first-class mail shall be deemed received five calendar days after mailing.
Failure to mail a notice or communication to a Holder or any defect in it shall not affect its
sufficiency with respect to other Holders. If a notice or communication is mailed in the manner
provided above, it is duly given and shall be deemed received, whether or not the addressee
actually receives it.

     (c) Where this Supplemental Indenture provides for notice in any manner, such notice may
be waived in writing by the Person entitled to receive such notice, either before or after the
event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders
shall be filed with the Trustee, but such filing shall not be a condition precedent to the
validity of any action taken in reliance upon such waiver.

          SECTION 12.03. Communication by Holders with Other Holders. Holders may communicate
pursuant to TIA Section 312(b) with other Holders with respect to their rights under this
Supplemental Indenture or the Notes. Arch Coal, any Guarantor, the Trustee, the Registrar and
anyone else shall have the protection of TIA Section 312(c).

          SECTION 12.04. Certificate and Opinion as to Conditions Precedent. Upon any request
or application by Arch Coal or any Guarantor to the Trustee to take or refrain from taking any
action under this Supplemental Indenture (except in connection with the original issuance of the
Notes on the date hereof), Arch Coal or any Guarantor, as the case may be, shall furnish upon
request to the Trustee:

93

 

     (a) an Officers’ Certificate in form reasonably satisfactory to the Trustee stating that,
in the opinion of the signer, all conditions precedent, if any, provided for in this
Supplemental Indenture relating to the proposed action have been complied with; and

     (b) an Opinion of Counsel in form reasonably satisfactory to the Trustee stating that, in
the opinion of such counsel, all such conditions precedent have been complied with.

     Any Officers’ Certificate may be based, insofar as it relates to legal matters, upon an
Opinion of Counsel, unless the officer signing such certificate knows, or in the exercise of
reasonable care should know, that such Opinion of Counsel with respect to the matters upon which
such Officers’ Certificate is based are erroneous. Any Opinion of Counsel may be based and may
state that it is so based, insofar as it relates to factual matters, upon an Officers’ Certificate
stating that the information with respect to such factual matters is in the possession of Arch
Coal, unless the counsel signing such Opinion of Counsel knows, or in the exercise of reasonable
care should know, that the Officers’ Certificate with respect to the matters upon which such
Opinion of Counsel is based are erroneous.

          SECTION 12.05. Statements Required in Certificate or Opinion. Every certificate or
opinion with respect to compliance with a condition or covenant provided for in this Supplemental
Indenture shall include:

     (a) a statement that each individual signing such certificate or opinion has read such
covenant or condition and the definitions herein relating thereto;

     (b) a brief statement as to the nature and scope of the examination or investigation upon
which the statements or opinions contained in such certificate or opinion are based;

     (c) a statement that, in the opinion of each such individual, he has made such
examination or investigation as is necessary to enable him to express an informed opinion as
to whether or not such covenant or condition has been complied with; and

     (d) a statement as to whether, in the opinion of each such individual, such condition or
covenant has been complied with.

          SECTION 12.06. Rules by Trustee, Paying Agent and Registrar. The Trustee may make
reasonable rules for action by or at a meeting of Holders. The Registrar and the Paying Agent may
make reasonable rules for their functions.

          SECTION 12.07. Legal Holidays. If an Interest Payment Date or other payment date is
not a Business Day, payment shall be made on the next succeeding day that is a Business Day, and no
interest shall accrue for the intervening period. If a Record Date is not a Business Day, the
Record Date shall not be affected.

          SECTION 12.08. Governing Law. THIS SUPPLEMENTAL INDENTURE AND THE NOTES SHALL BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

94

 

          SECTION 12.09. No Recourse Against Others. A director, officer, employee or
shareholder, as such, of Arch Coal or any Guarantor shall not have any liability for any
obligations of Arch Coal or any Guarantor under the Notes, this Supplemental Indenture or any
Guarantee or for any claim based on, in respect of or by reason of such obligations or their
creation. By accepting a Note, each Holder shall waive and release all such liability. The waiver
and release shall be part of the consideration for the issue of the Notes.

          SECTION 12.10. Successors. All agreements of Arch Coal and any Guarantor in this
Supplemental Indenture and the Notes shall bind their respective successors. All agreements of the
Trustee in this Supplemental Indenture shall bind its successors.

          SECTION 12.11. Multiple Originals. The parties may sign any number of copies of this
Supplemental Indenture. Each signed copy shall be an original, but all of them together represent
the same agreement. One signed copy is enough to prove this Supplemental Indenture.

          SECTION 12.12. Table of Contents, Cross-Reference Sheet and Headings. The table of
contents, cross-reference sheet and headings of the Articles and Sections of this Supplemental
Indenture have been inserted for convenience of reference only, are not intended to be considered a
part hereof and shall not modify or restrict any of the terms or provisions hereof.

          SECTION 12.13. Severability. In case any provision in this Supplemental Indenture or
in the Notes shall be invalid, illegal or unenforceable, the validity, legality and enforceability
of the remaining provisions shall not in any way be affected or impaired thereby.

     This Supplemental Indenture may be signed in any number of counterparts each of which so
executed shall be deemed to be an original, but all such counterparts shall together constitute but
one and the same Indenture.

[SIGNATURE PAGES FOLLOW]

95

 

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

	 	 	 	 	 
	 	Arch Coal, Inc.

as Issuer

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Senior Vice President and Chief Financial
Officer 	 
	 
	 	

Allegheny Land Company

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	

Arch Coal Sales Company, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Arch Coal Terminal, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Arch Development, LLC

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 

Signature Page to Indenture

 

 

	 	 	 	 	 
	 	Arch Energy Resources, LLC

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Arch Reclamation Services, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	

Ark Land Company

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	

Arch Land KH, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Arch Land LT, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 

Signature Page to First Supplemental Indenture

 

 

	 	 	 	 	 
	 	Ark Land WR, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Ashland Terminal, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Catenary Coal Holdings, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Coal-Mac, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Cumberland River Coal Company

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 

Signature Page to First Supplemental Indenture

 

 

	 	 	 	 	 
	 	Lone Mountain Processing, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Mingo Logan Coal Company

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Mountain Gem Land, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Mountain Mining, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	

Mountaineer Land Company

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 

Signature Page to First Supplemental Indenture

 

 

	 	 	 	 	 
	 	Otter Creek Coal, LLC

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	

Prairie Holdings, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	Western Energy Resources, Inc.

As Guarantor

 	 
	 	By:  	/s/ John T. Drexler
 	 
	 	 	Name:  	John T. Drexler 	 
	 	 	Title:  	Vice President 	 
	 
	 	U.S. Bank National Association,

as Trustee

 	 
	 	By:  	/s/ Peter C. Qui Belle
 	 
	 	 	Name:  	Peter C. Qui Belle 	 
	 	 	Title:  	Assistant Vice President 	 
	 

Signature Page to First Supplemental Indenture

 

 

EXHIBIT A

[FORM OF FACE OF NOTE]

     THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO
AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY MAY NOT BE
TRANSFERRED TO, OR REGISTERED OR EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED IN THE
NAME OF, ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED
CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

     UNLESS THIS GLOBAL NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY, A NEW YORK CORPORATION (“DTC”), TO ARCH COAL OR ITS AGENT FOR REGISTRATION OF TRANSFER,
EXCHANGE, OR PAYMENT, AND ANY GLOBAL NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
OTHER NOMINEE AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL IN AS
MUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     THIS GLOBAL NOTE AND ANY RELATED DOCUMENTATION MAY BE AMENDED OR SUPPLEMENTED FROM TIME TO
TIME TO MODIFY THE RESTRICTIONS ON AND PROCEDURES FOR OR RESALES AND OTHER TRANSFERS OF THIS GLOBAL
NOTE TO REFLECT ANY CHANGE IN APPLICABLE LAW OR REGULATION (OR THE INTERPRETATION THEREOF) OR IN
PRACTICES RELATING TO THE RESALE OR TRANSFER OF RESTRICTED SECURITIES GENERALLY. THE HOLDER OF
THIS GLOBAL NOTE SHALL BE DEEMED, BY THE ACCEPTANCE HEREOF, TO HAVE AGREED TO ANY SUCH AMENDMENT OR
SUPPLEMENT.

A-1

 

CUSIP Number [                   ]/ISIN Number [             ]

No.                     

7.250% SENIOR NOTE DUE 2020

     Arch Coal, Inc., Delaware corporation, for value received promises to pay to Cede & Co. or
registered assigns the principal sum of $                    (                   ) on October 1, 2020.

     From August 9, 2010, or from the most recent interest payment date to which interest has been
paid or provided for, cash interest on this Note will accrue at 7.250%, payable semiannually on
April 1 and October 1 of each year, beginning on April 1, 2011, to the Person in whose name this
Note (or any predecessor Note) is registered at the close of business on the preceding March 15 or
September 15, as the case may be.

     THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW
YORK.

     Unless the certificate of authentication hereon has been executed by the Trustee referred to
on the reverse hereof by manual signature of an authorized signatory, this Note shall not be
entitled to any benefit under the Indenture or be valid or obligatory for any purpose.

     Reference is hereby made to the further provisions of this Note set forth on the reverse
hereof and to the provisions of the Indenture, which provisions shall for all purposes have the
same effect as if set forth at this place.

A-2

 

     IN WITNESS WHEREOF, Arch Coal, Inc. has caused this Note to be signed manually or by facsimile
by its duly authorized signatory.

Dated: August 9, 2010

	 	 	 	 	 
	 	Arch Coal, Inc.

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

U.S. BANK NATIONAL ASSOCIATION,

as Trustee, certifies that this is one of the Notes referred to in the Indenture.

	 	 	 	 	 
	 	 	 
	By:  	 	 	 
	 	Authorized Signatory 	 	 
	 	 	 	 

A-3

 

	 	 	 	 	 

[FORM OF REVERSE SIDE OF NOTE]

7.250% Senior Note Due 2020

	1.	 	Interest

     Arch Coal, Inc., Delaware corporation, and its successors and assigns under the Indenture
hereinafter referred to, being herein called the “Arch Coal”, for value received promises
to pay interest on the principal amount of this Note from August 9, 2010 at the rate per annum
shown above. Interest will be computed on the basis of a 360-day year of twelve 30-day months.
Arch Coal will pay interest on overdue principal at the interest rate borne by the Notes compounded
semiannually, and it shall pay interest on overdue installments of interest at the same rate
compounded semiannually to the extent lawful.

	2.	 	Method of Payment

     Arch Coal shall pay interest on this Note (except defaulted interest) to the persons who are
registered Holders of this Note at the close of business on the Record Date for the next Interest
Payment Date even if this Note is cancelled after the Record Date and on or before the Interest
Payment Date. Arch Coal shall pay principal and interest in U.S. Dollars in immediately available
funds that at the time of payment is legal tender for payment of public and private debts;
provided, however, that payment of interest may be made at the option of Arch Coal by check mailed
to the Holder.

     The amount of payments in respect of interest on each Interest Payment Date shall correspond
to the aggregate principal amount of Notes represented by the Global Note, as established by the
Registrar at the close of business on the relevant Record Date. Payments of principal shall be
made upon surrender of the Global Note to the Paying Agent.

	3.	 	Paying Agent and Registrar

     Initially, U.S. Bank National Association or one of its affiliates will act as Paying Agent
and Registrar. Arch Coal or any of its Affiliates incorporated in the United States may act as
Paying Agent, Registrar or co-Registrar, subject to the provisions of the Indenture.

	4.	 	Indenture

     Arch Coal issued the Notes under an indenture dated August 9, 2010 (the “Base
Indenture”), among Arch Coal, and U.S. Bank National Association, as trustee (the
“Trustee”) and a supplemental indenture dated as of August 9, 2010 (the “Supplemental
Indenture,” and together with the Base Indenture, the “Indenture”), among Arch Coal,
the Guarantors and the Trustee. The terms of the Notes include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939 as in effect on
the date of the Indenture and, to the extent required by any amendment after such date, as so
amended (the “Trust Indenture Act”). Terms defined in the Indenture and not defined herein
have the meanings ascribed thereto in the Indenture. The Notes are subject to all such terms, and
Holders are referred to the Indenture and the Trust Indenture Act for a statement of those terms.

A-4

 

     The Notes are unsecured senior guaranteed obligations of Arch Coal and are issued in an
initial aggregate principal amount $500,000,000. The Indenture imposes certain limitations on Arch
Coal, the Guarantors and their affiliates, including, without limitation, limitations on the
incurrence of indebtedness and issuance of stock, the payment of dividends and other payment
restrictions affecting Arch Coal and its subsidiaries, the sale of assets, transactions with and
among affiliates of Arch Coal and the Restricted Subsidiaries, change of control and Liens.

	5.	 	Optional Redemption

Except pursuant to the next paragraphs, the Notes will not be redeemable at the option of Arch Coal
prior to October 1, 2015. Starting on that date, Arch Coal may redeem all or any portion of the
Notes, at once or over time, after giving the required notice under the Supplemental Indenture at
the redemption prices set forth below, plus accrued and unpaid interest to the redemption date
(subject to the right of Holders of record on the relevant Record Date to receive interest, due on
the relevant interest payment date). The following prices are for Notes redeemed during the
12-month period commencing on October 1 of the years set forth below, and are expressed as
percentages of principal amount:

	 	 	 	 	 
	 	 	Redemption	 
	Year	 	Price	 
	2015
	 	 	103.625	%
	2016
	 	 	102.417	%
	2017
	 	 	101.208	%
	2018 and thereafter
	 	 	100.000	%

     In addition, at any time and from time to time, prior to October 1, 2013, on one or more
occasions, Arch Coal may redeem an aggregate principal amount of Notes not to exceed 35% of the
original aggregate principal amount of the Notes (calculated giving effect to any issuance of
Additional Notes) with the proceeds of one or more Public Equity Offerings, at a redemption price
equal to 107.250% of the principal amount thereof, plus accrued and unpaid interest to the
redemption date (subject to the right of Holders of record on the relevant Record Date to receive
interest due on the relevant interest payment date); provided, however, that after giving effect to
any such redemption, at least 65% of the original aggregate principal amount of the Notes
(calculated giving effect to any issuance of Additional Notes) remains outstanding (excluding Notes
held by Arch Coal or any of its Subsidiaries). Any such redemption shall be made within 90 days of
such Public Equity Offering upon not less than 30 nor more than 60 days’ prior notice.

     At any time prior to October 1, 2015, Arch Coal may, at its option, on one or more occasions
redeem all or a part of the Notes, upon not less than 30 nor more than 60 days’ prior written
notice, at a redemption price equal to 100% of the principal amount of the Notes redeemed plus the
Applicable Premium as of the date of redemption, and, without duplication, accrued and unpaid
interest, if any, to the redemption date (subject to the rights of Holders of record on the
relevant record date to receive interest due on the relevant interest payment date).

A-5

 

     Any redemption pursuant to this Section 5 shall be made pursuant to the provisions of this
Article Three.

	6.	 	Notice of Redemption

     Notice of redemption will be mailed first-class postage prepaid at least 30 days but not more
than 60 days before the Redemption Date to the Holder of this Note to be redeemed at the addresses
contained in the Security Register. If this Note is in a denomination larger than $2,000 of
principal amount it may be redeemed in part but only in integral multiples of $1,000. In the event
of a redemption of less than all of the Notes, the Notes for redemption will be chosen by the
Trustee in accordance with the Supplemental Indenture. If this Note is redeemed subsequent to a
Record Date with respect to any Interest Payment Date specified above, then any accrued interest
will be paid to the Holder at the close of business on such Record Date. If money sufficient to pay
the Redemption Price of and accrued interest on all Notes (or portions thereof) to be redeemed on
the Redemption Date is deposited with the applicable Paying Agent on or before the Redemption Date
and certain other conditions are satisfied, interest ceases to accrue on such Notes (or such
portions thereof) called for redemption on or after such date.

	7.	 	Repurchase at the Option of Holders Upon a Change of Control

     Upon the occurrence of a Change of Control, Holders of Notes shall have the right to require
Arch Coal to repurchase all or any part of such Holder’s Notes pursuant to the offer described
below (the “Change of Control Offer”) at a purchase price (the “Change of Control Purchase Price”)
equal to 101% of the principal amount thereof, plus accrued and unpaid interest, to the repurchase
date (subject to the right of Holders of record on the relevant Record Date to receive interest due
on the relevant interest payment date). If the repurchase date is after a Record Date and on or
before the relevant interest payment date, the accrued and unpaid interest, if any, will be paid to
the person or entity in whose name the Note is registered at the close of business on that Record
Date, and no additional interest will be payable to Holders whose Notes shall be subject to
redemption.

     Within 30 days following any Change of Control, Arch Coal shall:

     (a) cause a notice of the Change of Control Offer to be sent at least once to the Dow
Jones News Service or similar business news service in the United States; and

     (b) send, by first-class mail, with a copy to the Trustee, to each Holder of Notes, at
such Holder’s address appearing in the Security Register, a notice stating:

     (1) that a Change of Control has occurred and a Change of Control Offer is being
made pursuant to Section 4.11 of the Supplemental Indenture and that all Notes timely
tendered will be accepted for payment;

     (2) the Change of Control Purchase Price and the repurchase date, which shall be,
subject to any contrary requirements of applicable law, a business day no earlier than
30 days nor later than 60 days from the date such notice is mailed;

A-6

 

     (3) the circumstances and relevant facts regarding the Change of Control
(including information with respect to pro forma historical income, cash flow and
capitalization after giving effect to the Change of Control); and

     (4) the procedures that holders of Notes must follow in order to tender their
Notes (or portions thereof) for payment, and the procedures that holders of Notes must
follow in order to withdraw an election to tender Notes (or portions thereof) for
payment.

     Arch Coal will not be required to make a Change of Control Offer following a Change of Control
if a third party makes the Change of Control Offer in the manner, at the times and otherwise in
compliance with the requirements set forth in the Supplemental Indenture applicable to a Change of
Control Offer made by Arch Coal and purchases all Notes validly tendered and not withdrawn under
such Change of Control Offer.

     Arch Coal shall comply, to the extent applicable, with the requirements of Section 14(e) of
the Exchange Act and any other securities laws or regulations in connection with the repurchase of
Notes pursuant to a Change of Control Offer. To the extent that the provisions of any securities
laws or regulations conflict with the provisions of this covenant, Arch Coal will comply with the
applicable securities laws and regulations and will not be deemed to have breached its obligations
under this covenant by virtue of such compliance.

	8.	 	Denominations

     The Notes are in denominations of $2,000 and integral multiples of $1,000 of principal amount.
The transfer of Notes may be registered, and Notes may be exchanged, as provided in the Indenture.
The Registrar may require a Holder, among other things, to furnish appropriate endorsements and
transfer documents and to pay any taxes and fees required by law or permitted by the Indenture.

	9.	 	Unclaimed Money

     All moneys paid by Arch Coal or the Guarantors to the Trustee or a Paying Agent for the
payment of the principal of, or premium, if any, or interest on, any Notes that remain unclaimed at
the end of three years after such principal, premium or interest has become due and payable may be
repaid to Arch Coal or the Guarantors, subject to applicable law, and the Holder of such Note
thereafter may look only to Arch Coal or the Guarantors for payment thereof.

	10.	 	Discharge and Defeasance

     Subject to certain conditions, Arch Coal at any time may terminate some or all of its
obligations and the obligations of the Guarantors under the Notes, the Guarantees and the Indenture
if Arch Coal irrevocably deposits with the Trustee U.S. Dollars or U.S. Government Obligations for
the payment of principal and interest on the Notes to redemption or maturity, as the case may be.

	11.	 	Amendment, Supplement and Waiver

A-7

 

     Subject to certain exceptions set forth in the Indenture, the Indenture may be amended or
supplemented with the written consent of the Holders of at least a majority in aggregate principal
amount of the relevant Notes then outstanding (including consents obtained in connection with a
tender offer or exchange offer for the Notes) and any existing default or compliance with any
provisions may be waived with the consent of the Holders of at least a majority in aggregate
principal amount of the Notes then outstanding. However, without the consent of the Holder of each
outstanding Note affected thereby, an amendment may not:

	 	(a)	 	reduce the amount of Notes whose Holders must consent to an amendment or
waiver;
	 
	 	(b)	 	reduce the rate of, or extend the time for payment of, interest on any Note;
	 
	 	(c)	 	reduce the principal of, or extend the Stated Maturity of, any Note;
	 
	 	(d)	 	make any Note payable in money other than that stated in the Note;
	 
	 	(e)	 	impair the right of any Holder to receive payment of principal of, premium, if
any, and interest, on, such holder’s Notes on or after the due dates therefor or to
institute suit for the enforcement of any payment on or with respect to such Holder’s
Notes;
	 
	 	(f)	 	reduce the premium payable upon the redemption of any Note or change the time
at which any Note may be redeemed, pursuant to Section 3.01 of the Supplemental
Indenture;
	 
	 	(g)	 	reduce the premium payable upon a Change of Control or, at any time after a
Change of Control has occurred, change the time at which the Change of Control Offer
relating thereto must be made or at which the Notes must be repurchased pursuant to
such Change of Control Offer;
	 
	 	(h)	 	at any time after Arch Coal is obligated to make a Prepayment Offer with the
Excess Proceeds from Asset Sales, change the time at which such Prepayment Offer must
be made or at which the Notes must be repurchased pursuant thereto;
	 
	 	(i)	 	modify or change any provision of the Supplemental Indenture affecting the
ranking of the Notes or the Note Guarantees in a manner adverse to the Trustee or the
Holders; or
	 
	 	(j)	 	release any Guarantor from any of its obligations under its Note Guarantee or
the Indenture other than in accordance with the provisions of the Indenture, or amend
or modify any provision relating to such release.

     The consent of the Holders is not necessary under the Indenture to approve the particular form
of any proposed amendment. It is sufficient if such consent approves the substance of the proposed
amendment.

A-8

 

     Notwithstanding the foregoing, without notice to or the consent of any Holder of the Notes,
Arch Coal, the Guarantors and the Trustee may, among other things, modify, amend or supplement the
Indenture:

     (a) cure any ambiguity, omission, defect or inconsistency in any manner that is not
adverse in any material respect to any holder of the Notes;

     (b) provide for the assumption by a Surviving Person of the obligations of Arch Coal
under the Indenture;

     (c) provide for uncertificated Notes in addition to or in place of certificated Notes
(provided that the uncertificated Notes are issued in registered form for purposes of Section
163(f) of the Code, or in a manner such that the uncertificated Notes are described in Section
163(f)(2)(B) of the Code);

     (d) add Note Guarantees with respect to the Notes or confirm and evidence the release,
termination or discharge of any security or Note Guarantee when such release, termination or
discharge is permitted by the Indenture;

     (e) secure the Notes, add to the covenants of Arch Coal and the Restricted Subsidiaries
for the benefit of the Holders or surrender any right or power conferred upon Arch Coal;

     (f) make any change that does not adversely affect the rights of any holder of the Notes;

     (g) comply with any requirement of the Commission in connection with the qualification of
this Supplemental Indenture under the Trust Indenture Act; or

     (h) provide for the issuance of Additional Notes in accordance with the Supplemental
Indenture.

     After an amendment becomes effective in accordance with the above position, Arch Coal shall
mail to each Holder at such Holder’s address appearing in the Security Register a notice briefly
describing such amendment. However, the failure to give such notice to all Holders, or any defect
therein, will not impair or affect the validity of the amendment.

	12.	 	Defaults and Remedies

     The Notes have the Events of Default as set forth in Section 6.01 of the Supplemental
Indenture. If an Event of Default occurs and is continuing, the Trustee, by notice to Arch Coal, or
the registered Holders of not less than 25% in aggregate principal amount of the Notes then
outstanding by notice to Arch Coal and the Trustee, subject to certain limitations, may declare all
the Notes to be due and payable immediately. Certain events of bankruptcy or insolvency are Events
of Default and shall result in the Notes being due and payable immediately upon the occurrence of
such Events of Default.

A-9

 

     Holders may not enforce the Indenture or the Notes except as provided in the Indenture. The
Trustee may refuse to enforce the Indenture or the Notes unless it receives an indemnity
satisfactory to it. Subject to certain limitations, Holders of a majority in aggregate principal
amount of the Notes may direct the Trustee in its exercise of any trust or power. The Holders of a
majority in aggregate principal amount of the Notes then outstanding by written notice to the
Trustee may rescind any acceleration and its consequence if the rescission would not conflict with
any judgment or decree and if all existing Events of Default have been cured or waived except
nonpayment of principal, premium, if any, or interest that has become due solely because of such
acceleration. The above description of Events of Default and remedies is qualified by reference,
and subject in its entirety, to the more complete description thereof contained in the Indenture.

	13.	 	Trustee Dealings with Arch Coal

     Subject to certain limitations imposed by the Trust Indenture Act, the Trustee under the
Indenture, in its individual or any other capacity, may become the owner or pledgee of Notes and
may otherwise deal with and collect obligations owed to it by Arch Coal, the Guarantor or any of
their Affiliates with the same rights it would have if it were not Trustee. Any Paying Agent,
Registrar, co-Registrar or co-Paying Agent may do the same with like rights.

	14.	 	No Recourse Against Others

     A director, officer, employee, or stockholder, as such, of Arch Coal or the Guarantor shall
not have any liability for any obligations of Arch Coal or the Guarantor under the Notes, the
Guarantees or the Indenture or for any claim based on, in respect of, or by reason of, such
obligations or their creation. By accepting a Note, each Holder shall waive and release all such
liability. The waiver and release are part of the consideration for the issue of the Notes.

	15.	 	Authentication

     This Note shall not be valid until an authorized officer of the Trustee (or an authenticating
agent) manually signs the certificate of authentication on the other side of this Note.

	16.	 	Governing Law

     THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW
YORK.

     Arch Coal or a Guarantor shall furnish to any Holder upon written request and without charge
to the Holder a copy of the Indenture. Requests may be made to:

Arch Coal, Inc.

One CityPlace Drive

Suite 300

St. Louis, Missouri 63141

A-10

 

     ASSIGNMENT FORM

To assign and transfer this Note, fill in the form below:

(I) or (Arch Coal) assign and transfer this Note to

 

(Insert assignee’s social security or tax I.D. no.)

 

(Print or type assignee’s name, address and postal code)

and irrevocably appoint 
                                          agent to transfer this Note on the
books of Arch Coal. The agent may substitute another to act for him.

	 	 	 

	Your Signature:
	 	 
	 

	 	 
	 

	 	(Sign exactly as your name appears on the other side of this Note)

	 	 	 

	Signature Guarantee:
	 	 
	 

	 	 
	 

	 	(Participant in a recognized signature guarantee medallion program)

Date:             
                      
                     
                     
                    

Certifying Signature:    
                     
                     
              
                

A-11

 

OPTION OF HOLDER TO ELECT PURCHASE

     If you want to elect to have this Note or a portion thereof repurchased pursuant to Section
4.09 or 4.11 of the Supplemental Indenture, check the box: o

     If the purchase is in part, indicate the portion (in denominations of $1,000 or any integral
multiple thereof) to be purchased:

Your signature:     
             
               
                

     
             
               
                
             
                      
                

(Sign exactly as your name appears on the other side of this Note)

Date:

Certifying Signature:           
                            
                     
          

SCHEDULE A

SCHEDULE OF PRINCIPAL AMOUNT

     The following decreases/increases in the principal amount of this Security have been made:

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	Principal	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	Amount	 	 	 	 
	Date of	 	Decrease in	 	 	Increase in	 	 	Following such	 	 	Notation Made	 
	Decrease/	 	Principal	 	 	Principal	 	 	Decrease/	 	 	by or on Behalf	 
	Increase	 	Amount	 	 	Amount	 	 	Increase	 	 	of Registrar	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 

A-12

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