UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 9)*

American Midstream Partners, LP
(Name of issuer)
Common Units Representing Limited Partner Interests
(Title of class of securities)
02752P 100
(CUSIP number)
Christine Miller
Magnolia Infrastructure Partners, LLC
c/o ArcLight Capital Partners
200 Clarendon Street, 55th Floor
Boston, MA 02117
(617) 531-6338
(Name, address and telephone number of person authorized to receive notices and communications)
December 21, 2015
(Date of event which requires filing of this statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D and is filing this Schedule because of Rule 13d-1(e), Rule 13d-1(f) or 13d-1(g), check the following box:   ¨
The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.
The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“ Act ”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act.

 

					
CUSIP NO. 02752P 100	 	SCHEDULE 13D	 		

  1. 	 	Name of Reporting Person; S.S. or IRS Identification
 
Magnolia Infrastructure Partners, LLC	
  2.	 	Check the appropriate box if a member of a group
 
(a)   ¨         (b)   x	
  3.	 	SEC use only
 	
  4.	 	Source of funds
 
WC	
  5.	 	Check box if disclosure of legal proceedings is required pursuant to Item 2(d) or 2(e)
 
¨	
  6.	 	Citizenship or place of organization
 
Delaware	
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
 	  	  7.   	  	Sole voting power
 
0	
	  	  8.	  	Shared voting power
 
12,078,504 (See Note 1)	
	  	  9.	  	Sole dispositive power
 
0	
	  	10.	  	Shared dispositive power
 
12,078,504 (See Note 1)	
11.	 	Aggregate amount beneficially owned by each reporting person
 
12,078,504 (See Note 1)	
12.	 	Check box if the aggregate amount in Row 11 excludes certain shares
 
¨	
13.	 	Percent of class represented by amount in Row 11
 
28.8% (See Note 2)	
14.	 	Type of reporting person
 
OO (Limited Liability Company)	
Note 1: Represents 6,447,957 Series A-1 Convertible Preferred Units (“Series A-1 Units”) held by High Point Infrastructure Partners, LLC (“High Point”), convertible into 7,077,679 Common Units, which are indirectly owned by Magnolia Infrastructure Partners, LLC (“Magnolia”), 2,762,503 Series A-2 Convertible Preferred Units (“Series A-2 Units”) held by Magnolia, convertible into 3,032,295 Common Units, 1,349,609 Series B Convertible Preferred Units (“Series B Units”) held by American Midstream GP, LLC, which is 95% owned by High Point, and 618,921 Common Units held by Magnolia.
Note 2: Based on 41,885,412 common units of the Issuer (“Common Units”) outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015, (b) 7,077,679 Common Units issuable upon the conversion of Series A-1 Units outstanding as of November 13, 2015, (c) 3,032,295 Common Units issuable upon the conversion of Series A-2 Units outstanding as of November 13, 2015 and (d) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.

					
CUSIP NO. 02752P 100	 	SCHEDULE 13D	 		

  1. 	 	Name of Reporting Person; S.S. or IRS Identification
 
High Point Infrastructure Partners, LLC	
  2.	 	Check the appropriate box if a member of a group
 
(a)   ¨         (b)   x	
  3.	 	SEC use only
 	
  4.	 	Source of funds
 
WC	
  5.	 	Check box if disclosure of legal proceedings is required pursuant to Item 2(d) or 2(e)
 
¨	
  6.	 	Citizenship or place of organization
 
Delaware	
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
 	  	  7.   	  	Sole voting power
 
0	
	  	  8.	  	Shared voting power
 
8,427,288 (See Note 1)	
	  	  9.	  	Sole dispositive power
 
0	
	  	10.	  	Shared dispositive power
 
8,427,288 (See Note 1)	
11.	 	Aggregate amount beneficially owned by each reporting person
 
8,427,288 (See Note 1)	
12.	 	Check box if the aggregate amount in Row 11 excludes certain shares
 
¨	
13.	 	Percent of class represented by amount in Row 11
 
21.7% (See Note 2)	
14.	 	Type of reporting person
 
OO (Limited Liability Company)	
Note 1: Represents 6,447,957 Series A-1 Convertible Preferred Units (“Series A-1 Units”) held by High Point Infrastructure Partners, LLC (“High Point”), convertible into 7,077,679 Common Units, which are indirectly owned by Magnolia Infrastructure Partners, LLC (“Magnolia”) and 1,349,609 Series B Convertible Preferred Units (“Series B Units”) held by American Midstream GP, LLC (the “General Partner”), which is 95% owned by High Point.
Note 2: Based on 38,853,117 common units of the Issuer (“Common Units”) outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015, (b) 7,077,679 Common Units issuable upon the conversion of Series A-1 Units outstanding as of November 13, 2015 and (c) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.

					
CUSIP NO. 02752P 100	 	SCHEDULE 13D	 		

  1. 	 	Name of Reporting Person; S.S. or IRS Identification
 
American Midstream GP, LLC	
  2.	 	Check the appropriate box if a member of a group
 
(a)   ¨         (b)   x	
  3.	 	SEC use only
 	
  4.	 	Source of funds
 
OO	
  5.	 	Check box if disclosure of legal proceedings is required pursuant to Item 2(d) or 2(e)
 
¨	
  6.	 	Citizenship or place of organization
 
Delaware	
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
 	  	  7.   	  	Sole voting power
 
0	
	  	  8.	  	Shared voting power
 
1,349,609 (See Note 1)	
	  	  9.	  	Sole dispositive power
 
0	
	  	10.	  	Shared dispositive power
 
1,349,609 (See Note 1)	
11.	 	Aggregate amount beneficially owned by each reporting person
 
1,349,609 (See Note 1)	
12.	 	Check box if the aggregate amount in Row 11 excludes certain shares
 
¨	
13.	 	Percent of class represented by amount in Row 11
 
4.2% (See Note 2)	
14.	 	Type of reporting person
 
OO (Limited Liability Company)	
Note 1: Represents 1,349,609 Series B Convertible Preferred Units (“Series B Units”) held by American Midstream GP, LLC, the Issuer’s general partner (the “General Partner”).
Note 2: Based on 31,775,438 common units of the Issuer (“Common Units”) outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015 and (b) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.

					
CUSIP NO. 02752P 100	 	SCHEDULE 13D	 		

  1. 	 	Name of Reporting Person; S.S. or IRS Identification
 
ArcLight Energy Partners Fund V, L.P.	
  2.	 	Check the appropriate box if a member of a group
 
(a)   ¨         (b)   x	
  3.	 	SEC use only
 	
  4.	 	Source of funds
 
WC	
  5.	 	Check box if disclosure of legal proceedings is required pursuant to Item 2(d) or 2(e)
 
¨	
  6.	 	Citizenship or place of organization
 
Delaware	
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
 	  	  7.   	  	Sole voting power
 
0	
	  	  8.	  	Shared voting power
 
12,078,504 (See Note 1)	
	  	  9.	  	Sole dispositive power
 
0	
	  	10.	  	Shared dispositive power
 
12,078,504 (See Note 1)	
11.	 	Aggregate amount beneficially owned by each reporting person
 
12,078,504 (See Note 1)	
12.	 	Check box if the aggregate amount in Row 11 excludes certain shares
 
¨	
13.	 	Percent of class represented by amount in Row 11
 
28.8% (See Note 2)	
14.	 	Type of reporting person
 
PN	
Note 1: Represents 6,447,957 Series A-1 Convertible Preferred Units (“Series A-1 Units”) held by High Point Infrastructure Partners, LLC (“High Point”), convertible into 7,077,679 Common Units, which are indirectly owned by Magnolia Infrastructure Partners, LLC (“Magnolia”), 2,762,503 Series A-2 Convertible Preferred Units (“Series A-2 Units”) held by Magnolia, convertible into 3,032,295 Common Units, 1,349,609 Series B Convertible Preferred Units (“Series B Units”) held by American Midstream GP, LLC, which is 95% owned by High Point, and 618,921 Common Units held by Magnolia.
Note 2: Based on 41,855,412 common units of the Issuer (“Common Units”) outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015, (b) 7,077,679 Common Units issuable upon the conversion of Series A-1 Units outstanding as of November 13, 2015, (c) 3,032,295 Common Units issuable upon the conversion of Series A-2 Units outstanding as of November 13, 2015 and (d) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.

					
CUSIP NO. 02752P 100	 	SCHEDULE 13D	 		

  1. 	 	Name of Reporting Person; S.S. or IRS Identification
 
ArcLight PEF GP V, LLC	
  2.	 	Check the appropriate box if a member of a group
 
(a)   ¨         (b)   x	
  3.	 	SEC use only
 	
  4.	 	Source of funds
 
WC	
  5.	 	Check box if disclosure of legal proceedings is required pursuant to Item 2(d) or 2(e)
 
¨	
  6.	 	Citizenship or place of organization
 
Delaware	
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
 	  	  7.   	  	Sole voting power
 
0	
	  	  8.	  	Shared voting power
 
12,078,504 (See Note 1)	
	  	  9.	  	Sole dispositive power
 
0	
	  	10.	  	Shared dispositive power
 
12,078,504 (See Note 1)	
11.	 	Aggregate amount beneficially owned by each reporting person
 
12,078,504 (See Note 1)	
12.	 	Check box if the aggregate amount in Row 11 excludes certain shares
 
¨	
13.	 	Percent of class represented by amount in Row 11
 
28.8% (See Note 2)	
14.	 	Type of reporting person
 
OO (Limited Liability Company)	
Note 1: Represents 6,447,957 Series A-1 Convertible Preferred Units (“Series A-1 Units”) held by High Point Infrastructure Partners, LLC (“High Point”), convertible into 7,077,679 Common Units, which are indirectly owned by Magnolia Infrastructure Partners, LLC (“Magnolia”), 2,762,503 Series A-2 Convertible Preferred Units (“Series A-2 Units”) held by Magnolia, convertible into 3,032,295 Common Units, 1,349,609 Series B Convertible Preferred Units (“Series B Units”) held by American Midstream GP, LLC, which is 95% owned by High Point, and 618,921 Common Units held by Magnolia.
Note 2: Based on 41,885,412 common units of the Issuer (“Common Units”) outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015, (b) 7,077,679 Common Units issuable upon the conversion of Series A-1 Units outstanding as of November 13, 2015, (c) 3,032,295 Common Units issuable upon the conversion of Series A-2 Units outstanding as of November 13, 2015 and (d) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.

					
CUSIP NO. 02752P 100	 	SCHEDULE 13D	 		

  1. 	 	Name of Reporting Person; S.S. or IRS Identification
 
ArcLight Capital Holdings, LLC	
  2.	 	Check the appropriate box if a member of a group
 
(a)   ¨         (b)   x	
  3.	 	SEC use only
 	
  4.	 	Source of funds
 
WC	
  5.	 	Check box if disclosure of legal proceedings is required pursuant to Item 2(d) or 2(e)
 
¨	
  6.	 	Citizenship or place of organization
 
Delaware	
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
 	  	  7.   	  	Sole voting power
 
0	
	  	  8.	  	Shared voting power
 
12,078,504 (See Note 1)	
	  	  9.	  	Sole dispositive power
 
0	
	  	10.	  	Shared dispositive power
 
12,078,504 (See Note 1)	
11.	 	Aggregate amount beneficially owned by each reporting person
 
12,078,504 (See Note 1)	
12.	 	Check box if the aggregate amount in Row 11 excludes certain shares
 
¨	
13.	 	Percent of class represented by amount in Row 11
 
28.8% (See Note 2)	
14.	 	Type of reporting person
 
OO (Limited Liability Company)	
Note 1: Represents 6,447,957 Series A-1 Convertible Preferred Units (“Series A-1 Units”) held by High Point Infrastructure Partners, LLC (“High Point”), convertible into 7,077,679 Common Units, which are indirectly owned by Magnolia Infrastructure Partners, LLC (“Magnolia”), 2,762,503 Series A-2 Convertible Preferred Units (“Series A-2 Units”) held by Magnolia, convertible into 3,032,295 Common Units, 1,349,609 Series B Convertible Preferred Units (“Series B Units”) held by American Midstream GP, LLC, which is 95% owned by High Point, and 618,921 Common Units held by Magnolia.
Note 2: Based on 41,885,412 common units of the Issuer (“Common Units”) outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015, (b) 7,077,679 Common Units issuable upon the conversion of Series A-1 Units outstanding as of November 13, 2015, (c) 3,032,295 Common Units issuable upon the conversion of Series A-2 Units outstanding as of November 13, 2015 and (d) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.

					
CUSIP NO. 02752P 100	 	SCHEDULE 13D	 		

  1. 	 	Name of Reporting Person; S.S. or IRS Identification
 
ArcLight Capital Partners, LLC	
  2.	 	Check the appropriate box if a member of a group
 
(a)   ¨         (b)   x	
  3.	 	SEC use only
 	
  4.	 	Source of funds
 
WC	
  5.	 	Check box if disclosure of legal proceedings is required pursuant to Item 2(d) or 2(e)
 
¨	
  6.	 	Citizenship or place of organization
 
Delaware	
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
 	  	  7.   	  	Sole voting power
 
0	
	  	  8.	  	Shared voting power
 
12,078,504 (See Note 1)	
	  	  9.	  	Sole dispositive power
 
0	
	  	10.	  	Shared dispositive power
 
12,078,504 (See Note 1)	
11.	 	Aggregate amount beneficially owned by each reporting person
 
12,078,504 (See Note 1)	
12.	 	Check box if the aggregate amount in Row 11 excludes certain shares
 
¨	
13.	 	Percent of class represented by amount in Row 11
 
28.8% (See Note 2)	
14.	 	Type of reporting person
 
OO (Limited Liability Company)	
Note 1: Represents 6,447,957 Series A-1 Convertible Preferred Units (“Series A-1 Units”) held by High Point Infrastructure Partners, LLC (“High Point”), convertible into 7,077,679 Common Units, which are indirectly owned by Magnolia Infrastructure Partners, LLC (“Magnolia”), 2,762,503 Series A-2 Convertible Preferred Units (“Series A-2 Units”) held by Magnolia, convertible into 3,032,295 Common Units, 1,349,609 Series B Convertible Preferred Units (“Series B Units”) held by American Midstream GP, LLC, which is 95% owned by High Point, and 618,921 Common Units held by Magnolia.
Note 2: Based on 41,885,412 common units of the Issuer (“Common Units”) outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015, (b) 7,077,679 Common Units issuable upon the conversion of Series A-1 Units outstanding as of November 13, 2015, (c) 3,032,295 Common Units issuable upon the conversion of Series A-2 Units outstanding as of November 13, 2015 and (d) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.

					
CUSIP NO. 02752P 100	 	SCHEDULE 13D	 		

  1. 	 	Name of Reporting Person; S.S. or IRS Identification
 
Daniel R. Revers	
  2.	 	Check the appropriate box if a member of a group
 
(a)   ¨         (b)   x	
  3.	 	SEC use only
 	
  4.	 	Source of funds
 
WC	
  5.	 	Check box if disclosure of legal proceedings is required pursuant to Item 2(d) or 2(e)
 
¨	
  6.	 	Citizenship or place of organization
 
United States	
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
 	  	  7.   	  	Sole voting power
 
0	
	  	  8.	  	Shared voting power
 
12,078,504 (See Note 1)	
	  	  9.	  	Sole dispositive power
 
0	
	  	10.	  	Shared dispositive power
 
12,078,504 (See Note 1)	
11.	 	Aggregate amount beneficially owned by each reporting person
 
12,078,504 (See Note 1)	
12.	 	Check box if the aggregate amount in Row 11 excludes certain shares
 
¨	
13.	 	Percent of class represented by amount in Row 11
 
28.8% (See Note 2)	
14.	 	Type of reporting person
 
IN	
Note 1: Represents 6,447,957 Series A-1 Convertible Preferred Units (“Series A-1 Units”) held by High Point Infrastructure Partners, LLC (“High Point”), convertible into 7,077,670 Common Units, which are indirectly owned by Magnolia Infrastructure Partners, LLC (“Magnolia”), 2,762,503 Series A-2 Convertible Preferred Units (“Series A-2 Units”) held by Magnolia, convertible into 3,032,295 Common Units, 1,349,609 Series B Convertible Preferred Units (“Series B Units”) held by American Midstream GP, LLC, which is 95% owned by High Point, and 618,921 Common Units held by Magnolia.
Note 2: Based on 41,885,412 common units of the Issuer (“Common Units”) outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015, (b) 7,077,679 Common Units issuable upon the conversion of Series A-1 Units outstanding as of November 13, 2015, (c) 3,032,295 Common Units issuable upon the conversion of Series A-2 Units outstanding as of November 13, 2015 and (d) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.

This Amendment No. 9 to Schedule 13D amends and supplements the Statement on Schedule 13D filed on May 3, 2013, as amended by Amendment No. 1 filed on November 14, 2014, Amendment No. 2 filed on February 17, 2015, Amendment No. 3 filed on April 3, 2015, Amendment No. 4 filed on May 15, 2015, Amendment No. 5 filed on August 18, 2015, Amendment No. 6 filed on August 19, 2015, Amendment No. 7 filed on September 17, 2015 and Amendment No. 8 filed on November 18, 2015 (as amended, this “Schedule 13D”), filed with respect to the common units representing limited partner interests (“Common Units”) of American Midstream Partners, LP (the “Issuer”).
ITEM 4. Purpose of the Transaction.
Item 4 is hereby supplemented as follows:
On December 21, 2015, ArcLight Capital Partners, LLC (“ArcLight”) issued a press release announcing a unit purchase program in which affiliates of ArcLight may purchase up to $75 million of the Issuer’s Common Units. It is expected that the unit purchases will initially be effected by Busbar II, LLC (“Busbar”), a wholly owned subsidiary of ArcLight Energy Partners Fund V, L.P., and are expected to commence the week of December 21, 2015. Common Units may be purchased under the program in open market transactions, in privately negotiated transactions or otherwise. The amount and timing of any unit purchases by ArcLight’s affiliates, including Busbar, may vary and will be determined based on market conditions, unit price and other factors. The program does not require ArcLight’s affiliates to purchase a specific number of Common Units. There can be no assurance that ArcLight’s affiliates will purchase any units under the program, and the program may be modified or suspended at any time without prior notice. Any units purchased under the program by ArcLight’s affiliates will not impact the total number of units outstanding.
ITEM 5. Interest in Securities of the Issuer.
Item 5(a) and (b) of the Schedule 13D is hereby amended and restated as follows:
(a)-(b) The information contained on the cover pages to this Schedule 13D are incorporated herein by reference. The following disclosure is based on 41,885,412 Common Units outstanding, on an as-converted basis, which equals the sum of (a) 30,425,829, the number of Common Units outstanding as of November 6, 2015, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2015, (b) 7,077,679 Common Units issuable upon the conversion of Series A-1 Units outstanding as of November 13, 2015, (c) 3,032,295 Common Units issuable upon the conversion of Series A-2 Units outstanding as of November 13, 2015 and (d) 1,349,609 Common Units issuable upon the conversion of Series B Units outstanding as of November 13, 2015.
ITEM 7. Material to be Filed as Exhibits.
See the Exhibit Index following the signature pages hereto.

SIGNATURES
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Dated: December 22, 2015

AMERICAN MIDSTREAM GP, LLC	
		
	 	/s/ William B. Mathews	
	 	William B. Mathews, Senior Vice President, General Counsel and Secretary	
	
HIGH POINT INFRASTRUCTURE
PARTNERS, LLC	
		
	 	/s/ Daniel R. Revers	
	 	Daniel R. Revers, President	

MAGNOLIA INFRASTRUCTURE
PARTNERS, LLC	
			
	 		 	/s/ Daniel R. Revers	
	 		 	Daniel R. Revers, President	

	
ARCLIGHT ENERGY PARTNERS FUND V, L.P.	
			
	 	    By:	 	ArcLight PEF GP V, L.P.	
	 		 	its General Partner	
				
	 		 	By:	 	ArcLight Capital Holdings, LLC	
	 		 		 	its Manager	

	 	/s/ Daniel R. Revers	
	 	Daniel R. Revers, Managing Partner	

ARCLIGHT PEF GP V, LLC	
			
	 	    By:	 	ArcLight Capital Holdings, LLC	
	 		 	its Manager	

	 	/s/ Daniel R. Revers	
	 	Daniel R. Revers, Managing Partner	

			
ARCLIGHT CAPITAL HOLDINGS, LLC	
		
	 	/s/ Daniel R. Revers	
	 	Daniel R. Revers, Managing Partner	
	
ARCLIGHT CAPITAL PARTNERS, LLC	
		
	 	/s/ Daniel R. Revers	
	 	Daniel R. Revers, Managing Partner	
		
	 	/s/ Daniel R. Revers	
	 	Daniel R. Revers	

EXHIBIT INDEX

Exhibit
Number	  	Description	
		
1.	  	Press Release issued on December 21, 2015 announcing purchase program	
		
2.	  	Joint Filing Agreement (incorporated by reference to Exhibit 1 of Amendment No. 3 to Schedule 13D filed by the reporting persons on April 2, 2015)	

Exhibit 1

Press Release
ArcLight Capital Partners Announces $75 Million Unit Purchase Program for American Midstream
BOSTON—(December 21, 2015)—Affiliates of ArcLight Capital Partners, LLC (“ArcLight”), which controls the general partner of American Midstream Partners, LP (NYSE: AMID) (the “Partnership”) today announced that ArcLight has approved a unit purchase program (the “Purchase Program”) whereby ArcLight may purchase up to $75 million of common units of the Partnership.
ArcLight’s unit purchases are expected to commence as early as December 22, 2015. ArcLight may purchase units under the Purchase Program in open market transactions, in privately negotiated transactions, or otherwise. The amount and timing of any ArcLight unit purchases may vary and will be determined based on market conditions, unit price and other factors. The Purchase Program does not require ArcLight to purchase a specific number of units. There can be no assurance that ArcLight will purchase any units under the Purchase Program, and the Purchase Program may be modified or suspended at any time without prior notice. ArcLight’s unit purchases, if any, made under the Purchase Program will not impact the total number of units outstanding.
“As the sponsor of the Partnership, we strongly believe the Partnership’s current unit price undervalues the assets of the Partnership. In light of this belief, as well as our confidence in the strength of these assets, the management team, and prospects for the future, ArcLight authorized an additional $75 million investment to be used for ArcLight to acquire common units of the Partnership,” commented Dan Revers, Managing Partner of ArcLight. “We are pleased to broaden our financial commitment to the Partnership through the Purchase Program.”
About ArcLight Capital Partners, LLC
ArcLight is one of the leading private equity firms focused on North American and Western European energy assets. Since its establishment in 2001, ArcLight has invested over $13.9 billion across multiple energy cycles in more than 90 investments. Headquartered in Boston, MA with an additional office in Luxembourg, the firm’s investment team brings extensive energy expertise, industry relationships, and specialized value creation capabilities to its portfolio. More information about ArcLight, as well as a complete list of ArcLight’s portfolio companies, can be found at http://arclightcapital.com .

About American Midstream Partners, LP
Denver-based American Midstream Partners, LP is a growth-oriented limited partnership formed to own, operate, develop and acquire a diversified portfolio of midstream energy assets. The Partnership provides midstream services in Texas, North Dakota, and the Gulf Coast and Southeast regions of the United States. For more information about American Midstream Partners, LP, visit www.AmericanMidstream.com .
Forward-Looking Statements
This press release includes forward-looking statements. These statements relate to, among other things, the Purchase Program and the number of common units that may be purchased pursuant to the Purchase Program. We have used the words “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “should,” “will,” “potential,” “line-of-sight,” and similar terms and phrases to identify forward-looking statements in this press release. Although we believe the assumptions upon which these forward-looking statements are based are reasonable, any of these assumptions could prove to be inaccurate and the forward-looking statements based on these assumptions could be incorrect. The Partnership’s operations and future growth involve risks and uncertainties, many of which are outside the Partnership’s control, and any one of which, or a combination of which, could materially affect the Partnership’s results of operations and whether the forward-looking statements ultimately prove to be correct. Actual results and trends in the future may differ materially from those suggested or implied by the forward-looking statements depending on a variety of factors that are described in greater detail in the Partnership’s filings with the SEC. In addition, the Partnership faces risks associated with construction of growth projects, including cost overruns and delays resulting from numerous factors, as well as risks associated with the integration of acquired businesses, decreased liquidity, increased interest and other expenses, assumption of potential liabilities, diversion of management’s attention, and other risks associated with growth and acquisitions. Please see the Partnership’s Risk Factor disclosures included in its Annual Report on Form 10-K for the year ended December 31, 2014, filed with the SEC on March 10, 2015, and the Quarterly Report on Form 10-Q for the quarter ended September 30, 2015, filed with the SEC on November 9, 2015. All future written and oral forward-looking statements attributable to ArcLight or the Partnership or persons acting on its behalf are expressly qualified in their entirety by the previous statements. The forward-looking statements herein speak as of the date of this press release. Neither ArcLight nor the Partnership undertake any obligation to update any information contained herein or to publicly release the results of any revisions to any forward-looking statements that may be made to reflect events or circumstances that occur, or that we become aware of, after the date of this press release.
Source: ArcLight Capital Partners, LLC