# EDGAR Filing Document

**Accession Number:** 0001552000
**File Stem:** 0001552000-23-000004
**Filing Date:** 2023-1
**Character Count:** 53775
**Document Hash:** 1240f2061f4362fd60b4035df09ed6d6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001552000-23-000004.hdr.sgml**: 20230131

**ACCESSION NUMBER**: 0001552000-23-000004

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20230131

**ITEM INFORMATION**: Results of Operations and Financial Condition

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20230131

**DATE AS OF CHANGE**: 20230131

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MPLX LP
- **CENTRAL INDEX KEY:** 0001552000
- **STANDARD INDUSTRIAL CLASSIFICATION:** PIPE LINES (NO NATURAL GAS) [4610]
- **IRS NUMBER:** 270005456
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35714
- **FILM NUMBER:** 23570189

**BUSINESS ADDRESS:**
- **STREET 1:** 200 E. HARDIN STREET
- **CITY:** FINDLAY
- **STATE:** OH
- **ZIP:** 45840
- **BUSINESS PHONE:** (419) 421-2159

**MAIL ADDRESS:**
- **STREET 1:** 200 E. HARDIN STREET
- **CITY:** FINDLAY
- **STATE:** OH
- **ZIP:** 45840

?xml version="1.0" ? mplx-20230131

**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) January 31, 2023** 

_____________________________________________

**MPLX LP** 

*(Exact name of registrant as specified in its charter)*

_____________________________________________

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-35714** | **27-0005456** |
| *(State or other jurisdiction<br>of incorporation)* | *(Commission File Number)* | *(IRS Employer<br>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** 

_____________________________________________

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))

---

| | | |
|:---|:---|:---|
| Securities registered pursuant to Section 12(b) of the Act: | Securities registered pursuant to Section 12(b) of the Act: | Securities registered pursuant to Section 12(b) of the Act: |
| Title of each class | Trading<br>symbol(s) | Name of each exchange on which registered |
| Common Units Representing Limited Partnership Interests | MPLX | New York Stock Exchange |

---

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.

☐

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| | |
|:---|:---|
| **Item 2.02** | **Results of Operations and Financial Condition** |

---

On January 31, 2023, MPLX LP issued a press release announcing its financial results for the quarter and year ended December 31, 2022. The press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Information in this Item 2.02 and Exhibit 99.1 of Item 9.01 below shall not be deemed "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise incorporated by reference into any filing pursuant to the Securities Act of 1933, as amended, or the Exchange Act except as otherwise expressly stated in such a filing.

---

| | |
|:---|:---|
| **Item 9.01** | **Financial Statements and Exhibits** |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Exhibits.

---

| | |
|:---|:---|
| **Exhibit Number** | **Description** |
| <u>[99.1](mplxq42022earningsrelease.htm)</u> | Press Release issued by MPLX LP on January 31, 2023 |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

---

------

**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: January 31, 2023 | By: | /s/ John J. Quaid |
|  |  | Name: John J. Quaid |
|  |  | Title: Executive Vice President and Chief Financial Officer |

---

## Exhibit 99.1

**Exhibit 99.1**

![mplxearningslogoa06a.jpg](mplxearningslogoa06a.jpg)

**MPLX LP Reports Fourth-Quarter and**

**Full-Year 2022 Financial Results**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**• Fourth-quarter net income attributable to MPLX of $816 million and full-year net income of $3.9 billion**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**• Fourth-quarter adjusted EBITDA attributable to MPLX of $1.5 billion and full-year 2022 adjusted EBITDA of $5.8 billion**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**• Full-year 2022 net cash provided by operating activities of $5.0 billion and over $3.5 billion in capital returned to unitholders**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**• Announced 2023 MPLX capital spending outlook of $950 million**

FINDLAY, Ohio, Jan. 31, 2023 - MPLX LP (NYSE: MPLX) today reported fourth-quarter 2022 net income attributable to MPLX of $816 million, compared with $830 million for the fourth quarter of 2021.

Adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) attributable to MPLX was $1,454 million, compared with $1,445 million for the fourth quarter of 2021. Logistics and Storage (L&S) segment adjusted EBITDA for the fourth quarter of 2022 was $979 million, compared with $934 million for the fourth quarter of 2021. Gathering and Processing (G&P) segment adjusted EBITDA for the fourth quarter of 2022 was $475 million, compared with $511 million for the fourth quarter of 2021.

During the quarter, MPLX generated $1,368 million in net cash provided by operating activities, $1,270 million of distributable cash flow, and adjusted free cash flow after distributions of $294 million. MPLX announced a fourth-quarter 2022 distribution of $0.775 per common unit, resulting in a distribution coverage ratio of 1.6x for the quarter. The leverage ratio was 3.5x at the end of the quarter.

For the full year 2022, MPLX generated $5,019 million in net cash provided by operating activities, $4,981 million of distributable cash flow, and $1,022 million of adjusted free cash flow after distributions.

"In 2022, MPLX increased its distribution by 10%, driven by solid operational performance and the strength and growth of our cash flows," said Michael J. Hennigan, MPLX chairman, president and chief executive officer. "Throughout the year, MPLX returned over $3.5 billion of capital to unitholders, while maintaining a distribution coverage ratio of 1.6x."

------

**Financial Highlights (unaudited)**

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions, except per unit and ratio data)</u>* | **2022** | **2021** | **2022** | **2021** |
| Net income attributable to MPLX LP | $816 | $830 | $3944 | $3077 |
| Adjusted EBITDA attributable to MPLX LP<sup>(a)</sup> | 1454 | 1445 | 5775 | 5560 |
| Net cash provided by operating activities | 1368 | 1240 | 5019 | 4911 |
| Distributable cash flow attributable to MPLX LP<sup>(a)</sup> | 1270 | 1207 | 4981 | 4785 |
| Distribution per common unit<sup>(b)</sup> | $0.775 | $0.705 | $2.960 | $3.360 |
| Distribution coverage ratio<sup>(c)</sup> | 1.6x | 1.6x | 1.6x | 1.4x |
| Consolidated debt to adjusted EBITDA<sup>(d)</sup> | 3.5x | 3.7x | 3.5x | 3.7x |
| Cash paid for common unit repurchases | $176 | $165 | $491 | $630 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;Non-GAAP measures calculated before distributions to preferred unitholders. See reconciliation in the tables that follow.

(b)&nbsp;&nbsp;&nbsp;&nbsp;Distributions declared by the board of directors of MPLX's general partner. The twelve months ended December 31, 2021 include a supplemental distribution of $0.575 per unit (the "Supplemental Distribution Amount") for the third quarter of 2021.

(c)&nbsp;&nbsp;&nbsp;&nbsp;DCF attributable to GP and LP unitholders divided by total GP and LP distributions. The twelve months ended December 31, 2021 include the impact of the Supplemental Distribution Amount.

(d)&nbsp;&nbsp;&nbsp;&nbsp;Calculated using face value total debt and LTM adjusted EBITDA. See reconciliation in the tables that follow.

**Segment Results**

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| | | | | |
|:---|:---|:---|:---|:---|
| *<u>(In millions)</u>* | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| **Segment income from operations (unaudited)** | **2022** | **2021** | **2022** | **2021** |
| &nbsp;&nbsp;&nbsp;Logistics and Storage | $812 | $750 | $3216 | $3012 |
| &nbsp;&nbsp;&nbsp;Gathering and Processing<sup>(a)</sup> | 248 | 306 | 1695 | 980 |
| **Segment adjusted EBITDA attributable to MPLX LP (unaudited)** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Logistics and Storage | $979 | $934 | $3818 | $3681 |
| &nbsp;&nbsp;&nbsp;Gathering and Processing | 475 | 511 | 1957 | 1879 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;The twelve months ended December 31, 2022 include a $509 million non-cash gain on a lease reclassification.

**Logistics & Storage**

L&S segment income from operations for the fourth quarter of 2022 increased by $62 million compared to the same period in 2021, while segment adjusted EBITDA for the fourth quarter of 2022 increased by $45 million compared to the same period in 2021. These increases were primarily driven by higher pipeline tariff rates and contributions from joint ventures, partially offset by higher project related expenses.

Total pipeline throughputs were 5.6 million barrels per day (bpd) in the fourth quarter, flat versus the same quarter of 2021. The average tariff rate was $0.89 per barrel for the quarter, an increase of 2% versus the same quarter of 2021. Terminal throughput was 3.0 million bpd for the quarter, an increase of 4% versus the same quarter of 2021.

------

**Gathering & Processing**

G&P segment income from operations for the fourth quarter of 2022 decreased by $58 million compared to the fourth quarter of 2021. Segment adjusted EBITDA for the fourth quarter of 2022 decreased by $36 million compared to the same period in 2021, as higher volumes were offset largely by lower natural gas liquids prices.

In the fourth quarter of 2022:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Gathered volumes averaged 6.2 billion cubic feet per day (bcf/d), a 14% increase from the fourth quarter of 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Processed volumes averaged 8.6 bcf/d, a 1% increase versus the fourth quarter of 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Fractionated volumes averaged 583 thousand bpd, a 6% increase versus the fourth quarter of 2021.

In the Marcellus:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Gathered volumes averaged 1.4 bcf/d in the fourth quarter, a 1% decrease versus the fourth quarter of 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Processed volumes averaged 5.5 bcf/d in the fourth quarter, a 2% decrease versus the fourth quarter of 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Fractionated volumes averaged 518 thousand bpd in the fourth quarter, a 7% increase versus the fourth quarter of 2021.

**Strategic Update**

MPLX's capital spending outlook for 2023 is $950 million, which includes approximately $800 million of growth capital and $150 million of maintenance capital. The capital spending plan focuses on expansions and de-bottlenecking of MPLX's existing L&S assets, and increasing G&P capacity to meet customer demand.

In the L&S segment, MPLX continues to expand natural gas long-haul and crude gathering pipelines supporting the Permian and Bakken basins. Specifically in the Permian, working with its partners, MPLX is progressing its natural gas strategy with the expansion of the Whistler pipeline from 2.0 bcf/d to 2.5 bcf/d, and the associated ADCC pipeline lateral into the Corpus Christi domestic and export markets.

In the G&P segment, MPLX remains focused on the Permian and Marcellus basins in response to producer demand. In the Permian, the 200 million cubic feet per day (mmcf/d) Torñado ll processing plant was placed into operation in the fourth quarter. MPLX is progressing its sixth 200 mmcf/d processing plant in the basin, Preakness ll, which is expected online in the first half of 2024. In the Marcellus, MPLX is progressing Harmon Creek ll, a 200 mmcf/d processing plant expected online in the first half of 2024.

**Financial Position and Liquidity**

As of December 31, 2022, MPLX had $238 million in cash, $2 billion available on its bank revolving credit facility, and $1.5 billion available through its intercompany loan agreement with Marathon Petroleum Corp. (NYSE: MPC). MPLX's leverage ratio was 3.5x, below its stated target of 4.0x.

------

The partnership repurchased $176 million of common units held by the public in the fourth quarter, and $491 million for the full-year 2022. As of December 31, 2022, MPLX had approximately $846 million remaining available under its unit repurchase authorization.

MPLX is providing a notice of redemption for all of the $600 million outstanding Series B preferred units. The Series B preferred units are expected to be redeemed on February 15, 2023 at $1,000 per unit. The semi-annual distribution on the Series B preferred units will be paid in the usual manner on February 15, 2023 to the holders of record as of the close of business on February 1, 2023. The foregoing is qualified in its entirety by the redemption notice to be distributed to the holders of the Series B preferred units and does not constitute an offer to buy or sell, or the solicitation of an offer to sell or buy, securities in any jurisdiction or a notice of redemption for the Series B preferred units.

**Conference Call**

At 9:30 a.m. ET today, MPLX will hold a conference call and webcast to discuss the reported results and provide an update on operations. Interested parties may listen by visiting MPLX's website at www.mplx.com. A replay of the webcast will be available on MPLX's website for two weeks. Financial information, including this earnings release and other investor-related materials, will also be available online prior to the conference call and webcast at www.mplx.com.

**About MPLX LP**

MPLX is a diversified, large-cap master limited partnership that owns and operates midstream energy infrastructure and logistics assets and provides fuels distribution services. MPLX's assets include a network of crude oil and refined product pipelines; an inland marine business; light-product terminals; storage caverns; refinery tanks, docks, loading racks, and associated piping; and crude and light-product marine terminals. The company also owns crude oil and natural gas gathering systems and pipelines as well as natural gas and NGL processing and fractionation facilities in key U.S. supply basins. More information is available at www.MPLX.com.

**Investor Relations Contact: (419) 421-2071**

Kristina Kazarian, Vice President, Finance and Investor Relations

Brian Worthington, Director

Isaac Feeney, Supervisor

**Media Contact: (419) 421-3312**

Jamal Kheiry, Communications Manager

**Non-GAAP references**

*In addition to our financial information presented in accordance with U.S. generally accepted accounting principles (GAAP), management utilizes additional non-GAAP measures to facilitate comparisons of past performance and future periods. This press release and supporting schedules include the non-GAAP measures adjusted EBITDA; consolidated debt to last twelve months adjusted EBITDA, which we refer to as our leverage ratio; distributable cash flow (DCF); distribution coverage ratio; adjusted free cash flow (Adjusted FCF); and adjusted free cash flow after distributions. The amount of adjusted EBITDA and DCF generated is considered by the board of directors of our general partner in approving the Partnership's cash distribution. Adjusted EBITDA and DCF should not be considered separately from or as a substitute for net income, income from operations, or cash flow as reflected in our financial statements. The GAAP measures most directly comparable to adjusted EBITDA and DCF are net income and net cash provided by operating activities. We define Adjusted EBITDA as net income adjusted for (i) depreciation and amortization; (ii) provision/benefit for income taxes; (iii) interest and other* 

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*financial costs; (iv) impairment expense; (v) income/loss from equity method investments; (vi) distributions and adjustments related to equity method investments; (vii) gain on sales-type leases; (viii) noncontrolling interests and (ix) other adjustments as deemed necessary. In general, we define DCF as adjusted EBITDA adjusted for (i) deferred revenue impacts; (ii) sales-type lease payments, net of income; (iii) net interest and other financial costs; (iv) net maintenance capital expenditures; (v) equity method investment maintenance capital expenditures paid out; and (vi) other adjustments as deemed necessary.*

*The Partnership makes a distinction between realized and unrealized gains and losses on derivatives. During the period when a derivative contract is outstanding, changes in the fair value of the derivative are recorded as an unrealized gain or loss. When a derivative contract matures or is settled, the previously recorded unrealized gain or loss is reversed and the realized gain or loss of the contract is recorded.*

*Adjusted EBITDA is a financial performance measure used by management, industry analysts, investors, lenders, and rating agencies to assess the financial performance and operating results of our ongoing business operations. Additionally, we believe adjusted EBITDA provides useful information to investors for trending, analyzing and benchmarking our operating results from period to period as compared to other companies that may have different financing and capital structures.*

*DCF is a financial performance measure used by management as a key component in the determination of cash distributions paid to unitholders. We believe DCF is an important financial measure for unitholders as an indicator of cash return on investment and to evaluate whether the partnership is generating sufficient cash flow to support quarterly distributions. In addition, DCF is commonly used by the investment community because the market value of publicly traded partnerships is based, in part, on DCF and cash distributions paid to unitholders.*

*Adjusted FCF and adjusted free cash flow after distributions are financial performance measures used by management in the allocation of capital and to assess financial performance. We believe that unitholders may use this metric to analyze our ability to manage leverage and return capital. We define Adjusted FCF as net cash provided by operating activities adjusted for (i) net cash used in investing activities; (ii) cash contributions from MPC; (iii) cash contributions from noncontrolling interests and (iv) cash distributions to noncontrolling interests. We define adjusted free cash flow after distributions as Adjusted FCF less base distributions to common and preferred unitholders.*

*Distribution coverage ratio is a financial performance measure used by management to reflect the relationship between the partnership's financial operating performance and cash distribution capability. We define the distribution coverage ratio as the ratio of DCF attributable to GP and LP unitholders to total GP and LP distributions declared.* 

*Leverage ratio is a liquidity measure used by management, industry analysts, investors, lenders and rating agencies to analyze our ability to incur and service debt and fund capital expenditures.*

**Forward-Looking Statements**

*This press release contains forward-looking statements regarding MPLX LP (MPLX). These forward-looking statements may relate to, among other things, MPLX's expectations, estimates and projections concerning its business and operations, financial priorities, including with respect to positive free cash flow and distribution coverage, strategic plans, capital return plans, capital expenditure plans, operating cost reduction objectives, and environmental, social and governance ("ESG") plans and goals, including those related to greenhouse gas emissions, diversity and inclusion and ESG reporting. Forward-looking and other statements regarding our ESG plans and* 

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*goals are not an indication that these statements are material to investors. In addition, historical, current, and forward-looking ESG-related statements may be based on standards for measuring progress that are still developing, internal controls and processes that continue to evolve, and assumptions that are subject to change in the future. You can identify forward-looking statements by words such as "anticipate," "believe," "commitment," "could," "design," "estimate," "expect," "forecast," "goal," "guidance," "intend," "may," "objective," "opportunity," "outlook," "plan," "policy," "position," "potential," "predict," "priority," "project," "prospective," "pursue," "seek," "should," "strategy," "target," "will," "would" or other similar expressions that convey the uncertainty of future events or outcomes. MPLX cautions that these statements are based on management's current knowledge and expectations and are subject to certain risks and uncertainties, many of which are outside of the control of MPLX, that could cause actual results and events to differ materially from the statements made herein. Factors that could cause MPLX's actual results to differ materially from those implied in the forward-looking statements include but are not limited to: the continuance or escalation of the military conflict between Russia and Ukraine, and related sanctions and market disruptions; general economic, political or regulatory developments, including inflation, rising interest rates and changes in governmental policies relating to refined petroleum products, crude oil, natural gas or NGLs, or taxation; continued or further volatility in and degradation of general economic, market, industry or business conditions; the magnitude, duration and extent of future resurgences of the COVID-19 pandemic and its effects; the adequacy of capital resources and liquidity, including the availability of sufficient free cash flow from operations to pay distributions and to fund future unit repurchases; the ability to access debt markets on commercially reasonable terms or at all; the timing and extent of changes in commodity prices and demand for crude oil, refined products, feedstocks or other hydrocarbon-based products; changes to the expected construction costs and timing of projects and planned investments, the availability of desirable strategic initiatives to optimize portfolio assets and the ability to obtain regulatory and other approvals with respect thereto; our ability to successfully implement our sustainable energy strategy and principles, achieve our ESG goals and targets and realize the expected benefits thereof; accidents or other unscheduled shutdowns affecting our machinery, pipelines, processing, fractionation and treating facilities or equipment, means of transportation, or those of our suppliers or customers; the suspension, reduction or termination of MPC's obligations under MPLX's commercial agreements; other risk factors inherent to MPLX's industry; the impact of adverse market conditions or other similar risks to those identified herein affecting MPC; and the factors set forth under the heading "Risk Factors" in MPLX's and MPC's Annual Reports on Form 10-K for the year ended Dec. 31, 2021, and in other filings with Securities and Exchange Commission (SEC).* 

*Any forward-looking statement speaks only as of the date of the applicable communication and we undertake no obligation to update any forward-looking statement except to the extent required by applicable law.*

*Copies of MPLX's Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and other SEC filings are available on the SEC's website, MPLX's website at http://ir.mplx.com or by contacting MPLX's Investor Relations office. Copies of MPC's Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and other SEC filings are available on the SEC's website, MPC's website at https://www.marathonpetroleum.com/Investors/ or by contacting MPC's Investor Relations office.*

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| | | | | |
|:---|:---|:---|:---|:---|
| **Condensed Results of Operations (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions, except per unit data)</u>* | **2022** | **2021** | **2022** | **2021** |
| **Revenues and other income:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Operating revenue | $1171 | $1302 | $5361 | $4624 |
| &nbsp;&nbsp;&nbsp;Operating revenue - related parties | 1330 | 1292 | 5180 | 4951 |
| &nbsp;&nbsp;&nbsp;Income from equity method investments | 141 | 93 | 476 | 321 |
| &nbsp;&nbsp;&nbsp;Other income<sup>(a)</sup> | 20 | 47 | 596 | 131 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total revenues and other income | 2662 | 2734 | 11613 | 10027 |
| **Costs and expenses:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Operating expenses (including purchased product costs) | 803 | 909 | 3555 | 2905 |
| &nbsp;&nbsp;&nbsp;Operating expenses - related parties | 389 | 340 | 1467 | 1328 |
| &nbsp;&nbsp;&nbsp;Depreciation and amortization | 305 | 316 | 1230 | 1287 |
| &nbsp;&nbsp;&nbsp;Impairment expense |  |  |  | 42 |
| &nbsp;&nbsp;&nbsp;General and administrative expenses | 87 | 86 | 335 | 353 |
| &nbsp;&nbsp;&nbsp;Other taxes | 18 | 27 | 115 | 120 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total costs and expenses | 1602 | 1678 | 6702 | 6035 |
| **Income from operations** | 1060 | 1056 | 4911 | 3992 |
| &nbsp;&nbsp;&nbsp;Interest and other financial costs | 234 | 218 | 925 | 879 |
| **Income before income taxes** | 826 | 838 | 3986 | 3113 |
| &nbsp;&nbsp;&nbsp;Provision for income taxes | 2 |  | 8 | 1 |
| **Net income** | 824 | 838 | 3978 | 3112 |
| &nbsp;&nbsp;&nbsp;Less: Net income attributable to noncontrolling interests | 8 | 8 | 34 | 35 |
| **Net income attributable to MPLX LP** | 816 | 830 | 3944 | 3077 |
| &nbsp;&nbsp;&nbsp;Less: Series A preferred unitholders interest in net income | 23 | 21 | 88 | 100 |
| &nbsp;&nbsp;&nbsp;Less: Series B preferred unitholders interest in net income | 10 | 10 | 41 | 41 |
| **Limited partners' interest in net income attributable to MPLX LP** | $783 | $799 | $3815 | $2936 |
| **Per Unit Data** |  |  |  |  |
| **Net income attributable to MPLX LP per limited partner unit:** |  |  |  |  |
| Common – basic | $0.78 | $0.78 | $3.75 | $2.86 |
| Common – diluted | $0.78 | $0.78 | $3.75 | $2.86 |
| **Weighted average limited partner units outstanding:** |  |  |  |  |
| Common units – basic | 1003 | 1019 | 1010 | 1027 |
| Common units – diluted | 1003 | 1019 | 1010 | 1027 |

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(a)&nbsp;&nbsp;&nbsp;&nbsp;The twelve months ended December 31, 2022 include a $509 million non-cash gain on a lease reclassification.

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| | | | | |
|:---|:---|:---|:---|:---|
| **Select Financial Statistics (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions, except ratio data)</u>* | **2022** | **2021** | **2022** | **2021** |
| **Common unit distributions declared by MPLX LP** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Common units (LP) – public | $274 | $259 | $1063 | $1257 |
| &nbsp;&nbsp;&nbsp;Common units – MPC | 502 | 456 | 1917 | 2175 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total GP and LP distribution declared**<sup>(a)</sup> | 776 | 715 | 2980 | 3432 |
| **Preferred unit distributions**<sup>(b)</sup> |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Series A preferred unit distributions<sup>(a)</sup> | 23 | 21 | 88 | 100 |
| &nbsp;&nbsp;&nbsp;Series B preferred unit distributions | 10 | 10 | 41 | 41 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total preferred unit distributions** | 33 | 31 | 129 | 141 |
| **Other Financial Data** |  |  |  |  |
| Adjusted EBITDA attributable to MPLX LP<sup>(c)</sup> | 1454 | 1445 | 5775 | 5560 |
| DCF attributable to GP and LP unitholders<sup>(c)</sup> | $1237 | $1176 | $4852 | $4644 |
| Distribution coverage ratio<sup>(d)</sup> | 1.6x | 1.6x | 1.6x | 1.4x |
| **Cash Flow Data** |  |  |  |  |
| Net cash flow provided by (used in): |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Operating activities | $1368 | $1240 | $5019 | $4911 |
| &nbsp;&nbsp;&nbsp;Investing activities | (280) | (141) | (956) | (518) |
| &nbsp;&nbsp;&nbsp;Financing activities | $(971) | $(1125) | $(3838) | $(4395) |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;The twelve months ended December 31, 2021 include a supplemental distribution of $0.575 per unit (the "Supplemental Distribution Amount") in addition to the base distribution of $0.705 per unit.&nbsp;&nbsp;&nbsp;&nbsp;

(b)&nbsp;&nbsp;&nbsp;&nbsp;Includes MPLX distributions declared on the Series A and Series B preferred units as well as distributions earned on the Series B preferred, assuming a distribution is declared by the Board of Directors. Series A preferred unitholders receive the greater of $0.528125 per unit or the amount of per unit distributions paid to holders of MPLX LP common units. Series B preferred unitholders are entitled to receive a fixed distribution of $68.75 per unit, per annum, payable semi-annually in arrears on February 15 and August 15 or the first business day thereafter. Cash distributions declared/to be paid to holders of the Series A and Series B preferred units are not available to common unitholders.

(c)&nbsp;&nbsp;&nbsp;&nbsp;Non-GAAP measure. See reconciliation below.

(d)&nbsp;&nbsp;&nbsp;&nbsp;DCF attributable to GP and LP unitholders divided by total GP and LP distribution declared. The twelve months ended December 31, 2021 include the impact of the Supplemental Distribution Amount.

------

---

| | | |
|:---|:---|:---|
| **Financial Data (unaudited)** | | |
| *<u>(In millions, except ratio data)</u>* | **December 31,<br>2022** | **December 31, 2021** |
| Cash and cash equivalents | $238 | $13 |
| Total assets | 35665 | 35507 |
| Total debt<sup>(a)</sup> | 19796 | 20021 |
| Redeemable preferred units | 968 | 965 |
| Total equity | $12546 | $12052 |
| Consolidated debt to adjusted EBITDA<sup>(b)</sup> | 3.5x | 3.7x |
| **Partnership units outstanding:** |  |  |
| &nbsp;&nbsp;&nbsp;MPC-held common units | 647 | 647 |
| &nbsp;&nbsp;&nbsp;Public common units | 354 | 369 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;Includes outstanding intercompany borrowings of $1,450 million as of December 31, 2021. There were no intercompany borrowings outstanding as of December 31, 2022. Presented net of unamortized debt issuance costs, unamortized discount/premium and includes long-term debt due within one year.

(b)&nbsp;&nbsp;&nbsp;&nbsp;Calculated using face value total debt and LTM adjusted EBITDA. Face value total debt was $20,108 million and $20,359 million as of December 31, 2022, and December 31, 2021, respectively.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Operating Statistics (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| **Operating Statistics (unaudited)** | **2022** | **2021** | **% Change** | **2022** | **2021** | **% Change** |
| **Logistics and Storage** |  |  |  |  |  |  |
| <u>Pipeline throughput (mbpd)</u> |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Crude oil pipelines | 3543 | 3322 | 7% | 3549 | 3380 | 5% |
| &nbsp;&nbsp;&nbsp;Product pipelines | 2068 | 2264 | (9)% | 2111 | 2073 | 2% |
| Total pipelines | 5611 | 5586 | 0% | 5660 | 5453 | 4% |
| <u>Average tariff rates ($ per barrel)</u> |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Crude oil pipelines | $0.93 | $0.93 | —% | $0.91 | $0.95 | (4)% |
| &nbsp;&nbsp;&nbsp;Product pipelines | 0.83 | 0.77 | 8% | 0.81 | 0.78 | 4% |
| Total pipelines | $0.89 | $0.87 | 2% | $0.87 | $0.89 | (2)% |
| Terminal throughput (mbpd) | 3018 | 2889 | 4% | 3022 | 2886 | 5% |
| Barges at period-end | 296 | 297 | —% | 296 | 297 | —% |
| Towboats at period-end | 23 | 23 | —% | 23 | 23 | —% |

---

------

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Gathering and Processing Operating Statistics (unaudited) - Consolidated**<sup>(a)</sup> | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| **Gathering and Processing Operating Statistics (unaudited) - Consolidated**<sup>(a)</sup> | **2022** | **2021** | **% Change** | **2022** | **2021** | **% Change** |
| <u>Gathering throughput (MMcf/d)</u> |  |  |  |  |  |  |
| Marcellus Operations | 1359 | 1371 | (1)% | 1321 | 1336 | (1)% |
| Utica Operations<sup>(b)</sup> |  |  | —% |  |  | —% |
| Southwest Operations | 1398 | 1315 | 6% | 1374 | 1346 | 2% |
| Bakken Operations | 167 | 152 | 10% | 152 | 150 | 1% |
| Rockies Operations | 435 | 406 | 7% | 427 | 439 | (3)% |
| &nbsp;&nbsp;&nbsp;Total gathering throughput | 3359 | 3244 | 4% | 3274 | 3271 | —% |
| <u>Natural gas processed (MMcf/d)</u> |  |  |  |  |  |  |
| Marcellus Operations | 4076 | 4098 | (1)% | 4035 | 4150 | (3)% |
| Utica Operations<sup>(b)</sup> |  |  | —% |  |  | —% |
| Southwest Operations | 1456 | 1381 | 5% | 1448 | 1328 | 9% |
| Southern Appalachian Operations | 209 | 235 | (11)% | 217 | 231 | (6)% |
| Bakken Operations | 167 | 152 | 10% | 146 | 149 | (2)% |
| Rockies Operations | 446 | 427 | 4% | 438 | 429 | 2% |
| &nbsp;&nbsp;&nbsp;Total natural gas processed | 6354 | 6293 | 1% | 6284 | 6287 | —% |
| <u>C2 + NGLs fractionated (mbpd)</u> |  |  |  |  |  |  |
| Marcellus Operations | 518 | 485 | 7% | 488 | 484 | 1% |
| Utica Operations<sup>(b)</sup> |  |  | —% |  |  | —% |
| Southwest Operations |  |  | —% |  | 2 | (100)% |
| Southern Appalachian Operations | 11 | 12 | (8)% | 11 | 12 | (8)% |
| Bakken Operations | 22 | 23 | (4)% | 21 | 23 | (9)% |
| Rockies Operations | 3 | 4 | (25)% | 4 | 4 | —% |
| &nbsp;&nbsp;&nbsp;Total C2 + NGLs fractionated | 554 | 524 | 6% | 524 | 525 | —% |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;Includes operating data for entities that have been consolidated into the MPLX financial statements.

(b)&nbsp;&nbsp;&nbsp;&nbsp;The Utica region relates to operations for partnership-operated equity method investments and thus does not have any operating statistics from a consolidated perspective. See table below for details on Utica.

------

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Gathering and Processing Operating Statistics (unaudited) - Operated**<sup>(a)</sup> | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| **Gathering and Processing Operating Statistics (unaudited) - Operated**<sup>(a)</sup> | **2022** | **2021** | **% Change** | **2022** | **2021** | **% Change** |
| <u>Gathering throughput (MMcf/d)</u> |  |  |  |  |  |  |
| Marcellus Operations | 1359 | 1371 | (1)% | 1321 | 1336 | (1)% |
| Utica Operations | 2389 | 1862 | 28% | 2134 | 1690 | 26% |
| Southwest Operations | 1700 | 1513 | 12% | 1629 | 1494 | 9% |
| Bakken Operations | 167 | 152 | 10% | 152 | 150 | 1% |
| Rockies Operations | 564 | 546 | 3% | 558 | 588 | (5)% |
| &nbsp;&nbsp;&nbsp;Total gathering throughput | 6179 | 5444 | 14% | 5794 | 5258 | 10% |
| <u>Natural gas processed (MMcf/d)</u> |  |  |  |  |  |  |
| Marcellus Operations | 5549 | 5637 | (2)% | 5515 | 5639 | (2)% |
| Utica Operations | 514 | 452 | 14% | 495 | 482 | 3% |
| Southwest Operations | 1703 | 1576 | 8% | 1637 | 1471 | 11% |
| Southern Appalachian Operations | 209 | 235 | (11)% | 217 | 231 | (6)% |
| Bakken Operations | 167 | 152 | 10% | 146 | 149 | (2)% |
| Rockies Operations | 446 | 427 | 4% | 438 | 429 | 2% |
| &nbsp;&nbsp;&nbsp;Total natural gas processed | 8588 | 8479 | 1% | 8448 | 8401 | 1% |
| <u>C2 + NGLs fractionated (mbpd)</u> |  |  |  |  |  |  |
| Marcellus Operations | 518 | 485 | 7% | 488 | 484 | 1% |
| Utica Operations | 29 | 25 | 16% | 28 | 26 | 8% |
| Southwest Operations |  |  | —% |  | 2 | (100)% |
| Southern Appalachian Operations | 11 | 12 | (8)% | 11 | 12 | (8)% |
| Bakken Operations | 22 | 23 | (4)% | 21 | 23 | (9)% |
| Rockies Operations | 3 | 4 | (25)% | 4 | 4 | —% |
| &nbsp;&nbsp;&nbsp;Total C2 + NGLs fractionated | 583 | 549 | 6% | 552 | 551 | —% |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;Includes operating data for entities that have been consolidated into the MPLX financial statements as well as operating data for partnership-operated equity method investments.

------

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation of Segment Adjusted EBITDA to Net Income (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions)</u>* | **2022** | **2021** | **2022** | **2021** |
| &nbsp;&nbsp;&nbsp;L&S segment adjusted EBITDA attributable to MPLX LP | $979 | $934 | $3818 | $3681 |
| &nbsp;&nbsp;&nbsp;G&P segment adjusted EBITDA attributable to MPLX LP | 475 | 511 | 1957 | 1879 |
| **Adjusted EBITDA attributable to MPLX LP** | 1454 | 1445 | 5775 | 5560 |
| &nbsp;&nbsp;&nbsp;Depreciation and amortization | (305) | (316) | (1230) | (1287) |
| &nbsp;&nbsp;&nbsp;Gain on sales-type leases |  |  | 509 |  |
| &nbsp;&nbsp;&nbsp;Interest and other financial costs | (234) | (218) | (925) | (879) |
| &nbsp;&nbsp;&nbsp;Impairment expense |  |  |  | (42) |
| &nbsp;&nbsp;&nbsp;Income from equity method investments | 141 | 93 | 476 | 321 |
| &nbsp;&nbsp;&nbsp;Distributions/adjustments related to equity method investments | (202) | (166) | (652) | (537) |
| &nbsp;&nbsp;&nbsp;Adjusted EBITDA attributable to noncontrolling interests | 9 | 10 | 38 | 39 |
| &nbsp;&nbsp;&nbsp;Other<sup>(a)</sup> | (39) | (10) | (13) | (63) |
| **Net income** | $824 | $838 | $3978 | $3112 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;Includes unrealized derivative gain/ (loss), non-cash equity based compensation, provision for income taxes, and other miscellaneous items.

------

---

| | | | | |
|:---|:---|:---|:---|:---|
| **L&S Reconciliation of Segment Income from Operations to Segment Adjusted EBITDA (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions)</u>* | **2022** | **2021** | **2022** | **2021** |
| &nbsp;&nbsp;&nbsp;L&S segment income from operations | $812 | $750 | $3216 | $3012 |
| &nbsp;&nbsp;&nbsp;Depreciation and amortization | 128 | 132 | 515 | 546 |
| &nbsp;&nbsp;&nbsp;Income from equity method investments | (84) | (41) | (267) | (153) |
| &nbsp;&nbsp;&nbsp;Distributions/adjustments related to equity method investments | 117 | 88 | 329 | 262 |
| &nbsp;&nbsp;&nbsp;Other | 6 | 5 | 25 | 14 |
| **L&S segment adjusted EBITDA attributable to MPLX LP** | $979 | $934 | $3818 | $3681 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **G&P Reconciliation of Segment Income from Operations to Segment Adjusted EBITDA (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions)</u>* | **2022** | **2021** | **2022** | **2021** |
| &nbsp;&nbsp;&nbsp;G&P segment income from operations<sup>(a)</sup> | $248 | $306 | $1695 | $980 |
| &nbsp;&nbsp;&nbsp;Depreciation and amortization | 177 | 184 | 715 | 741 |
| &nbsp;&nbsp;&nbsp;Gain on sales-type leases |  |  | (509) |  |
| &nbsp;&nbsp;&nbsp;Impairment expense |  |  |  | 42 |
| &nbsp;&nbsp;&nbsp;Income from equity method investments | (57) | (52) | (209) | (168) |
| &nbsp;&nbsp;&nbsp;Distributions/adjustments related to equity method investments | 85 | 78 | 323 | 275 |
| &nbsp;&nbsp;&nbsp;Adjusted EBITDA attributable to noncontrolling interests | (9) | (10) | (38) | (39) |
| &nbsp;&nbsp;&nbsp;Other | 31 | 5 | (20) | 48 |
| **G&P segment adjusted EBITDA attributable to MPLX LP** | $475 | $511 | $1957 | $1879 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;The twelve months ended December 31, 2022 include a $509 million non-cash gain on a lease reclassification.

------

&nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation of Adjusted EBITDA Attributable to MPLX LP and DCF Attributable to GP and LP Unitholders from Net Income (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions)</u>* | **2022** | **2021** | **2022** | **2021** |
| **Net income**<sup>(a)</sup> | $824 | $838 | $3978 | $3112 |
| &nbsp;&nbsp;&nbsp;Provision for income taxes | 2 |  | 8 | 1 |
| &nbsp;&nbsp;&nbsp;Interest and other financial costs | 234 | 218 | 925 | 879 |
| **Income from operations** | 1060 | 1056 | 4911 | 3992 |
| &nbsp;&nbsp;&nbsp;Depreciation and amortization | 305 | 316 | 1230 | 1287 |
| &nbsp;&nbsp;&nbsp;Impairment expense |  |  |  | 42 |
| &nbsp;&nbsp;&nbsp;Income from equity method investments | (141) | (93) | (476) | (321) |
| &nbsp;&nbsp;&nbsp;Distributions/adjustments related to equity method investments | 202 | 166 | 652 | 537 |
| &nbsp;&nbsp;&nbsp;Gain on sales-type leases |  |  | (509) |  |
| &nbsp;&nbsp;&nbsp;Other | 37 | 10 | 5 | 62 |
| **Adjusted EBITDA** | 1463 | 1455 | 5813 | 5599 |
| &nbsp;&nbsp;&nbsp;Adjusted EBITDA attributable to noncontrolling interests | (9) | (10) | (38) | (39) |
| **Adjusted EBITDA attributable to MPLX LP** | 1454 | 1445 | 5775 | 5560 |
| &nbsp;&nbsp;&nbsp;Deferred revenue impacts | 71 | 12 | 158 | 88 |
| &nbsp;&nbsp;&nbsp;Sales-type lease payments, net of income<sup>(b)</sup> | 5 | 3 | 18 | 71 |
| &nbsp;&nbsp;&nbsp;Net interest and other financial costs<sup>(c)</sup> | (216) | (201) | (851) | (819) |
| &nbsp;&nbsp;&nbsp;Maintenance capital expenditures, net of reimbursements | (51) | (38) | (144) | (88) |
| &nbsp;&nbsp;&nbsp;Equity method investment maintenance capital expenditures paid out | (3) | (3) | (13) | (7) |
| &nbsp;&nbsp;&nbsp;Other | 10 | (11) | 38 | (20) |
| **DCF attributable to MPLX LP** | 1270 | 1207 | 4981 | 4785 |
| &nbsp;&nbsp;&nbsp;Preferred unit distributions<sup>(d)</sup> | (33) | (31) | (129) | (141) |
| **DCF attributable to GP and LP unitholders** | $1237 | $1176 | $4852 | $4644 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;The twelve months ended December 31, 2022 include a $509 million non-cash gain on a lease reclassification.

(b)&nbsp;&nbsp;&nbsp;&nbsp;The twelve months ended December 31, 2021 include a one-time impact from Refining Logistics harmonization project of $54 million.

(c)&nbsp;&nbsp;&nbsp;&nbsp;Excludes gain/loss on extinguishment of debt and amortization of deferred financing costs.

(d)&nbsp;&nbsp;&nbsp;&nbsp;Includes MPLX distributions declared on the Series A preferred units and Series B preferred units, as well as cash distributions earned by the Series B preferred units (as the Series B preferred units are declared and payable semi-annually), assuming a distribution is declared by the Board of Directors. Cash distributions declared/to be paid to holders of the Series A preferred units and Series B preferred units are not available to common unitholders. The distributions to Series A preferred unitholders for the twelve months ended December 31, 2021 include the Supplemental Distribution Amount of $0.575 per unit, or a total of $18 million in addition to the base distributions.

---

| | | |
|:---|:---|:---|
| **Reconciliation of Net Income to Last Twelve Month (LTM) adjusted EBITDA (unaudited)** | **December 31,** | **December 31,** |
| *<u>(In millions)</u>* | **2022** | **2021** |
| **LTM Net income** | $3978 | $3112 |
| &nbsp;&nbsp;&nbsp;LTM Net income to adjusted EBITDA adjustments | 1797 | 2448 |
| **LTM Adjusted EBITDA attributable to MPLX LP** | 5775 | 5560 |
| **Consolidated total debt**<sup>(a)</sup> | $20108 | $20359 |
| **Consolidated total debt to adjusted EBITDA** | 3.5x | 3.7x |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;Consolidated total debt excludes unamortized debt issuance costs and unamortized discount/premium. Consolidated total debt includes long-term debt due within one year and outstanding borrowings under the loan agreement with MPC.

------

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation of Adjusted EBITDA Attributable to MPLX LP and DCF Attributable to GP and LP Unitholders from Net Cash Provided by Operating Activities (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions)</u>* | **2022** | **2021** | **2022** | **2021** |
| **Net cash provided by operating activities** | $1368 | $1240 | $5019 | $4911 |
| &nbsp;&nbsp;&nbsp;Changes in working capital items | (181) | (14) | (121) | (157) |
| &nbsp;&nbsp;&nbsp;All other, net | 17 | (15) | (34) | (26) |
| &nbsp;&nbsp;&nbsp;Loss/ (gain) on extinguishment of debt |  |  | 1 | (10) |
| &nbsp;&nbsp;&nbsp;Net interest and other financial costs<sup>(a)</sup> | 216 | 201 | 851 | 819 |
| &nbsp;&nbsp;&nbsp;Other adjustments related to equity method investments | 29 | 19 | 74 | 29 |
| &nbsp;&nbsp;&nbsp;Other | 14 | 24 | 23 | 33 |
| **Adjusted EBITDA** | 1463 | 1455 | 5813 | 5599 |
| &nbsp;&nbsp;&nbsp;Adjusted EBITDA attributable to noncontrolling interests | (9) | (10) | (38) | (39) |
| **Adjusted EBITDA attributable to MPLX LP** | 1454 | 1445 | 5775 | 5560 |
| &nbsp;&nbsp;&nbsp;Deferred revenue impacts | 71 | 12 | 158 | 88 |
| &nbsp;&nbsp;&nbsp;Sales-type lease payments, net of income<sup>(b)</sup> | 5 | 3 | 18 | 71 |
| &nbsp;&nbsp;&nbsp;Net interest and other financial costs<sup>(a)</sup> | (216) | (201) | (851) | (819) |
| &nbsp;&nbsp;&nbsp;Maintenance capital expenditures, net of reimbursements | (51) | (38) | (144) | (88) |
| &nbsp;&nbsp;&nbsp;Equity method investment maintenance capital expenditures paid out | (3) | (3) | (13) | (7) |
| &nbsp;&nbsp;&nbsp;Other | 10 | (11) | 38 | (20) |
| **DCF attributable to MPLX LP** | 1270 | 1207 | 4981 | 4785 |
| &nbsp;&nbsp;&nbsp;Preferred unit distributions<sup>(c)</sup> | (33) | (31) | (129) | (141) |
| **DCF attributable to GP and LP unitholders** | $1237 | $1176 | $4852 | $4644 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;Excludes gain/loss on extinguishment of debt and amortization of deferred financing costs.

(b)&nbsp;&nbsp;&nbsp;&nbsp;The twelve months ended December 31, 2021 include a one-time impact from Refining Logistics harmonization project of $54 million.

(c)&nbsp;&nbsp;&nbsp;&nbsp;Includes MPLX distributions declared on the Series A preferred units and Series B preferred units, as well as cash distributions earned by the Series B preferred units (as the Series B preferred units are declared and payable semi-annually), assuming a distribution is declared by the Board of Directors. Cash distributions declared/to be paid to holders of the Series A preferred units and Series B preferred units are not available to common unitholders. The distributions to Series A preferred unitholders for the twelve months ended December 31, 2021 include the Supplemental Distribution Amount of $18 million in addition to the base distributions.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation of Net Cash Provided by Operating Activities to Adjusted Free Cash Flow and Adjusted Free Cash Flow after Distributions (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions)</u>* | **2022** | **2021** | **2022** | **2021** |
| **Net cash provided by operating activities**<sup>(a)</sup> | $1368 | $1240 | $5019 | $4911 |
| Adjustments to reconcile net cash provided by operating activities to adjusted free cash flow |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Net cash used in investing activities | (280) | (141) | (956) | (518) |
| &nbsp;&nbsp;&nbsp;Contributions from MPC | 14 | 14 | 44 | 45 |
| &nbsp;&nbsp;&nbsp;Distributions to noncontrolling interests | (9) | (10) | (38) | (39) |
| **Adjusted Free cash flow** | 1093 | 1103 | 4069 | 4399 |
| &nbsp;&nbsp;&nbsp;Base distributions paid to common and preferred unitholders<sup>(b)</sup> | (799) | (742) | (3047) | (2970) |
| **Adjusted Free cash flow after distributions** | $294 | $361 | $1022 | $1429 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;The three and twelve months ended December 31, 2022 include working capital draws of $181 million and $121 million, respectively. The three and twelve months ended December 31, 2021 include working capital draws of $14 million and $157 million, respectively.

(b)&nbsp;&nbsp;&nbsp;&nbsp;The three and twelve months ended December 31, 2021 exclude the Supplemental Distribution Amount of $0.575 per unit, or a total of $603 million, distributed to unitholders in the fourth quarter of 2021.

------

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Capital Expenditures (unaudited)** | **Three Months Ended <br>December 31,** | **Three Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** | **Twelve Months Ended <br>December 31,** |
| *<u>(In millions)</u>* | **2022** | **2021** | **2022** | **2021** |
| **Capital Expenditures:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Growth capital expenditures | $214 | $133 | $665 | $407 |
| &nbsp;&nbsp;&nbsp;Growth capital reimbursements<sup>(a)</sup> | (81) | (13) | (151) | (35) |
| &nbsp;&nbsp;&nbsp;Investments in unconsolidated affiliates | 19 | 35 | 217 | 151 |
| &nbsp;&nbsp;&nbsp;Return of capital |  |  | (11) | (36) |
| &nbsp;&nbsp;&nbsp;Capitalized interest | (2) | (2) | (8) | (13) |
| **Total growth capital expenditures**<sup>(b)</sup> | 150 | 153 | 712 | 474 |
| &nbsp;&nbsp;&nbsp;Maintenance capital expenditures | 65 | 52 | 188 | 133 |
| &nbsp;&nbsp;&nbsp;Maintenance capital reimbursements | (14) | (14) | (44) | (45) |
| &nbsp;&nbsp;&nbsp;Capitalized interest |  |  | (1) | (1) |
| **Total maintenance capital expenditures** | 51 | 38 | 143 | 87 |
| **Total growth and maintenance capital expenditures** | 201 | 191 | 855 | 561 |
| &nbsp;&nbsp;&nbsp;Investments in unconsolidated affiliates<sup>(c)</sup> | (19) | (35) | (217) | (151) |
| &nbsp;&nbsp;&nbsp;Return of capital<sup>(c)</sup> |  |  | 11 | 36 |
| &nbsp;&nbsp;&nbsp;Growth and maintenance capital reimbursements<sup>(a)(d)</sup> | 95 | 27 | 195 | 80 |
| &nbsp;&nbsp;&nbsp;Increase in capital accruals | (8) | (30) | (47) | (11) |
| &nbsp;&nbsp;&nbsp;Capitalized interest | 2 | 2 | 9 | 14 |
| **Additions to property, plant and equipment**<sup>(c)</sup> | $271 | $155 | $806 | $529 |

---

(a)&nbsp;&nbsp;&nbsp;&nbsp;Growth capital reimbursements include reimbursements from customers and our Sponsor. Prior periods have been updated to reflect these reimbursements to conform to the current period presentation.

(b)&nbsp;&nbsp;&nbsp;&nbsp;Total growth capital expenditures exclude $28 million of acquisitions for the twelve months ended December 31, 2022.

(c)&nbsp;&nbsp;&nbsp;&nbsp;Investments in unconsolidated affiliates, return of capital, and additions to property, plant and equipment, net are shown as separate lines within Investing activities in the Consolidated Statements of Cash Flows.

(d)&nbsp;&nbsp;&nbsp;&nbsp;Growth capital reimbursements are included in changes in deferred revenue within the operating activities section in the Consolidated Statements of Cash Flows. Maintenance capital reimbursements are included in the Contributions from MPC line within financing activities in the Consolidated Statements of Cash Flows.

<br>