Frequently Asked Questions

Where are MPLX LP’s units traded?
MPLX LP’s (“MPLX”) common units are traded on the New York Stock Exchange under the common unit ticker symbol MPLX.

Does MPLX pay a cash distribution?
Yes, MPLX expects to pay a quarterly distribution.

When are dividends paid?
Quarterly distributions, if any, are expected to be made within 60 days after the end of each calendar quarter to holders of record on or about the first day of each such month.

Who is MPLX’s transfer agent?

P.O. Box 43078
Providence, RI  02940

By overnight delivery: 250 Royall Street - Canton, MA  02021

Internet Inquiries:  InvestorCentre™ website at

Telephone Inquiries:  

Toll Free: 877-373-6374 (U.S., Canada and Puerto Rico);
                  781-575-2879 (other, non-U.S. jurisdictions)
Email:  [email protected]

When is MPLX’s next earnings release date?

For the next scheduled earnings release date, see the Calendar of Events in Investor Services.

When can I expect my Schedule K-1?

MPLX intends to furnish to each unitholder, within 90 days after the close of each calendar year, specific tax information, including a Schedule K-1, which describes such unitholder’s share of MPLX income, gain, loss and deduction for the preceding taxable year.

Where can I find the required disclosure relating to the MPLX notes issued in exchange for Andeavor Logistics notes?

The required disclosure under Treasury Regulations Section 1.1273-2(f)(9)(i) relating to MPLX notes issued in exchange for Andeavor Logistics notes on September 23, 2019 can be found here: Treasury Regulations Section 1.1273