APC Midstream Form 4 Western Gas Partners / MARCELLUS MIDSTREAM, L.L.C. ANADARKO ownership change

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

ANADARKO PETROLEUM CORP

(Last) (First) (Middle)

1201 LAKE ROBBINS DRIVE

(Street)

THE WOODLANDS TX 77380

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Western Gas Partners LP [ WES ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

Director	X	10% Owner
Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2016

4. If Amendment, Date of Original Filed (Month/Day/Year)

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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction 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)
			Code	V	Amount	(A) or (D)	Price
Common Units representing limited partner interests								52,143,426(2)(3)	I	See footnotes(1)(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction 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 (Month/Day/Year)		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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class C units representing limited partner interests	$0.00	05/13/2016		J		210,562		(1)	(1)	Common units representing limited partner interests	210,562	$45.42	11,946,009	I	See footnotes(1)(2)

1. Name and Address of Reporting Person^*

ANADARKO PETROLEUM CORP

(Last) (First) (Middle)

1201 LAKE ROBBINS DRIVE

(Street)

THE WOODLANDS TX 77380

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

WESTERN GAS RESOURCES INC

(Last) (First) (Middle)

1201 LAKE ROBBINS DR.

(Street)

THE WOODLANDS TX 77380

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

Western Gas Equity Partners, LP

(Last) (First) (Middle)

1201 LAKE ROBBINS DR.

(Street)

THE WOODLANDS TX 77380

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

Western Gas Equity Holdings, LLC

(Last) (First) (Middle)

1201 LAKE ROBBINS DR.

(Street)

THE WOODLANDS TX 77380

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

ANADARKO MARCELLUS MIDSTREAM, L.L.C.

(Last) (First) (Middle)

1201 LAKE ROBBINS DR.

(Street)

THE WOODLANDS TX 77380

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

APC Midstream Holdings, LLC

(Last) (First) (Middle)

1201 LAKE ROBBINS DR.

(Street)

THE WOODLANDS TX 77380

(City) (State) (Zip)

Explanation of Responses:

1. On November 25, 2014, Western Gas Partners, LP ("WES") issued 10,913,853 Class C units to APC Midstream Holdings, LLC ("AMH") at a price of $68.72 per unit. The Class C units receive distributions in the form of additional Class C units until the end of 2017 (unless earlier converted), and will be disregarded with respect to calculating the WES's cash distributions until they are converted to common units. The above transaction represents the quarterly distribution of Class C Units to AMH for the quarter ended March 31, 2016. The Class C units will convert into common units on a one-for-one basis on December 31, 2017, unless WES elects to convert such units earlier or AMH extends the conversion date.

2. As of May 13, 2016, (i) WGP owns 50,132,046 WES common units and 100% of the membership interests in WES's general partner, Western Gas Holdings, LLC, and AMH owns 1,562,251 WES common units and 11,946,009 Class C units, (ii) Western Gas Resources, Inc. ("WGR") owns (A) all of the membership interests of Western Gas Equity Holdings, LLC ("WGP GP"), the general partner of WGP, (B) 87.3% of the issued and outstanding limited partner interests in WGP, and (Z) 100% of the membership interests in AMH, (iii) WGP GP owns a 0% noneconomic general partner interest in WGP, and (iv) Anadarko Petroleum Corporation ("Anadarko") owns all of the issued and outstanding shares of common stock of WGR. Accordingly, WGP GP, WGR and Anadarko may be deemed to be indirect beneficial owners of any securities held by WGP, and WGR and Anadarko may be deemed to be indirect beneficial owners of any securities held by AMH.

3. As of May 13, 2016, (i) AMM owns 449,129 WES common units, (ii) Kerr-McGee Worldwide Corporation ("KWC") owns 100% of the membership interests in AMM, (iii) Kerr-McGee Corporation ("KMG") owns 100% of KWC, and (iv) Anadarko owns 100% of KMG. Accordingly, KWC, KMG and Anadarko may be deemed to be indirect beneficial owners of any securities held by AMM.

Remarks:

	/s/ Philip H. Peacock, Authorized Signatory of Anadarko Petroleum Corporation	05/13/2016
	/s/ Philip H. Peacock, Authorized Signatory of Western Gas Resources, Inc.	05/13/2016
	/s/ Philip H. Peacock, Vice President, General Counsel and Corporate Secretary of the general partner of Western Gas Equity Partners, LP	05/13/2016
	/s/ Philip H. Peacock, Vice President, General Counsel and Corporate Secretary of Western Gas Equity Holdings, LLC	05/13/2016
	/s/ Philip H. Peacock, Authorized Signatory for Anadarko Marcellus Midstream, L.L.C.	05/13/2016
	/s/ Philip H. Peacock, Authorized Signatory for APC Midstream Holdings, LLC	05/13/2016
	** Signature of Reporting Person	Date
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