Statement of Changes in Beneficial Ownership (4)

FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^* Monarch Alternative Capital LP	2. Issuer Name and Ticker or Trading Symbol ARCH COAL INC [ ARCH ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __ X __ 10% Owner _____ Officer (give title below) __ X __ Other (specify below) See Remarks
(Last) (First) (Middle) 535 MADISON AVENUE, 26TH FLOOR,	3. Date of Earliest Transaction (MM/DD/YYYY) 12/8/2017
(Street) NEW YORK, NY 10022 (City) (State) (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock, par value $0.01 per share ("Common Stock")	12/8/2017		D ⁽¹⁾		120908	D	$83.03	0	I	See Footnotes ⁽²⁾ ⁽³⁾
Common Stock	12/8/2017		D ⁽¹⁾		75818	D	$83.03	639003	I	See Footnotes ⁽²⁾ ⁽⁴⁾
Common Stock	12/8/2017		D ⁽¹⁾		56864	D	$83.03	429104	I	See Footnotes ⁽²⁾ ⁽⁵⁾
Common Stock	12/8/2017		D ⁽¹⁾		246410	D	$83.03	990625	I	See Footnotes ⁽²⁾ ⁽⁶⁾
Common Stock	12/12/2017		S		88948	D	$85.26	550055	I	See Footnotes ⁽²⁾ ⁽⁴⁾
Common Stock	12/12/2017		S		39378	D	$85.26	389726	I	See Footnotes ⁽²⁾ ⁽⁵⁾
Common Stock	12/12/2017		S		371674	D	$85.26	618951	I	See Footnotes ⁽²⁾ ⁽⁶⁾

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)			11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:
(1)	See Exhibit 99.1
(2)	See Exhibit 99.1
(3)	See Exhibit 99.1
(4)	See Exhibit 99.1
(5)	See Exhibit 99.1
(6)	See Exhibit 99.1

Remarks:
Solely for purposes of Section 16 of the Exchange Act, each of Monarch Alternative Capital LP, and by virtue of their control of Monarch Alternative Capital LP, MDRA GP LP and Monarch GP LLC, are directors-by-deputization by virtue of Monarch Alternative Capital LP's designation of Patrick Bartels, a managing principal of Monarch Alternative Capital LP, to ARCH's board of directors.

Exhibit List:
Exhibit 99.1 - Explanation of Responses
Exhibit 99.2 - Joint Filers' Information and Signatures

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Monarch Alternative Capital LP 535 MADISON AVENUE, 26TH FLOOR NEW YORK, NY 10022		X		See Remarks
MDRA GP LP C/O MONARCH ALTERNATIVE CAPITAL LP 535 MADISON AVENUE, 26TH FLOOR NEW YORK, NY 10022		X		See Remarks
Monarch GP LLC C/O MONARCH ALTERNATIVE CAPITAL LP 535 MADISON AVENUE, 26TH FLOOR NEW YORK, NY 10022		X		See Remarks

Signatures
MONARCH ALTERNATIVE CAPITAL LP, By: /s/ Michael A. Weinstock, Chief Executive Officer		12/12/2017
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
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