UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_____________________________________________
FORM 8-K
 _____________________________________________
 Current Report
Pursuant to Section 13 or 15(d) of The
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported) August 28, 2017
_____________________________________________
MPLX LP
(Exact name of registrant as specified in its charter)
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Delaware
 
001-35714
 
27-0005456
(State or other jurisdiction
of incorporation)
 
(Commission File Number)
 
(IRS Employer
Identification No.)
200 E. Hardin Street
Findlay, Ohio
 
45840
(Address of principal executive offices)
 
(Zip Code)
Registrant’s telephone number, including area code:
(419) 421-2414
(Former name or former address, if changed since last report.)
 _____________________________________________
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
 
¨
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
 






Item 5.02
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On August 28, 2017, Paula L. Rosson, Senior Vice President and Chief Accounting Officer of MPLX GP LLC and principal accounting officer of MPLX LP (the “Partnership”) informed the Partnership that she has elected to remain in the Partnership’s Denver, Colorado division office and accept a senior management role with MarkWest Energy Partners, L.P., a wholly-owned subsidiary of the Partnership. Ms. Rosson’s election to remain in Denver is in lieu of relocating to the Partnership’s headquarters in Findlay, Ohio to continue service as the Partnership’s principal accounting officer long term. In the interim, Ms. Rosson will continue to serve as the principal accounting officer of the Partnership until a successor is appointed.










SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
 
 
MPLX LP
 
 
 
 
 
 
 
By:
 
MPLX GP LLC, its General Partner
 
 
 
 
 
 
 
 
Date: August 29, 2017
By:
 
/s/ Molly R. Benson
 
 
 
Name: Molly R. Benson
 
 
 
Title: Vice President, Corporate Secretary and Chief Compliance Officer