MPLX Lp (MPLX) | The Buildout — AI Infrastructure

——Mkt cap — · 52-wk —–— · YTD — · delayed
Updated Aug 12, 2026Q1 FY2026 reviewed
MPLX operates natural gas and NGL midstream infrastructure that supports power generation tied to data-center demand.
Q2 adj. EBITDA +5%
Adjusted EBITDA $1,775 million, versus $1,690 million in Q2 2025.
90% nat gas capex
Over 90% of organic growth capital is directed to natural gas and NGL projects.
Distribution +12.5%
Management guides 12.5% distribution growth in 2026 and 2027.
MPC 48% of revenue
Marathon Petroleum was 48% of 2025 total revenue and 88% of crude segment revenue.
The Buildout Takeaway
The story is a back-half-weighted natural gas and NGL ramp: projects are moving from construction to operations, and management says 2027 growth is already in hand. The main open question is whether the 2H 2026 startups hit their dates — and whether unquantified data-center demand becomes contractual.
Analyst coverage
28 analysts·20 Buy8 Hold0 Sell
Coverage is thin — only 2 price estimates, so no target is shown
Management guidance
Mid-single-digit adjusted EBITDA growth in 2026 · 12.5% distribution growth in 2026 and 2027 · 1.3x distribution coverage target · 2026 capex raised to $2.9 billion
Important: The Buildout is a data analytics platform. Content is generated by algorithms and AI agents using public filings, earnings transcripts, and market data. This is not personalized investment advice.
Our View

The Verdict

MPLX builds and operates the physical midstream systems — gathering lines, processing plants, long-haul pipelines, NGL fractionation, and export infrastructure — that move hydrocarbons from wellhead to demand centers. Its role in the AI buildout is indirect: data-center electricity demand pulls natural gas through the same pipes and plants that serve LNG and power generation. A computed criticality assessment adds that if MPLX disappeared, the AI buildout would not slow.

Market Cap—
Revenue (TTM)$12.4B
Revenue Growth+10.5%
EBITDA Margin (TTM)55.2%
Net Debt$24.6B
Earnings Beats3 of 7
P/E (TTM)—
EV/EBITDA (TTM)—

What We Like

  • Q2 2026 adjusted EBITDA rose 5% year over year to $1,775 million, more than overcoming the late-2025 Rockies divestiture.
  • Over 90% of organic growth capital is directed at natural gas and NGL infrastructure.
  • Management says 2027 growth is "in hand" from existing projects and M&A is not required to meet coverage.
  • BANGL NGL pipeline volumes exceeded 200,000 bpd in Q2, already two-thirds of the 300,000 bpd expansion before its Q4 2026 online date.
  • Distribution growth of 12.5% is guided for 2026 and 2027 with target coverage of 1.3x.

What We’re Watching

  • Back-half 2026 ramp: management expects Q3 stronger than Q2 and Q4 stronger than Q3; slippage in Harmon Creek III, Titan, BANGL, or Blackcomb would hit the trajectory.
  • MPC concentration: 48% of 2025 revenue and 88% of crude segment revenue; MPC turnarounds already reduced Q1 and Q2 crude throughput.
  • NGL price sensitivity: every $0.05 move is about $20 million annual EBITDA, with 20% of exposure unhedged.
  • No disclosed data-center contract: AI exposure remains indirect and unquantified.
Bottom Line

The thesis is intact and strengthening on project delivery, but still conditional on back-half execution. Management has moved from "projects are on track" to specific completion milestones, and the 2027 growth position is unusually direct. The open question is whether the 2H 2026 project wave converts to EBITDA on schedule and whether data-center demand becomes a contractual, rather than thematic, driver.

Next upThe next catalyst is the Q3 2026 report, when management expects EBITDA stronger than Q2 and Q4 stronger than Q3; it tests whether the back-half ramp from Harmon Creek III, Titan, BANGL, and Blackcomb is converting to EBITDA.
Last Quarter — Q1 FY2026

Earnings

In the latest audited quarter, revenue was $2,863 million with gross margin of 41.0% and EBITDA of $1,382 million, a 48.3% EBITDA margin. Net income was $912 million, and free cash flow was $772 million.

MetricQ1 FY2026Q4 FY2025Q1 FY2025YoY
Revenue$2.9B$3.1B$2.9B−0.8%
Gross margin41.0%47.3%44.1%-310bps
EBITDA$1.4B$1.7B$1.7B−18.3%
EPS$0.90$1.17$1.10−18.8%
Distributable cash flow attributable to MPLX$1,408 millionn/a$1,486 million-5%
2026 is a year of execution with multiple investments expected to transition from construction to operations and EBITDA generation.— Maryann Mannen, President and CEO, May 5, 2026

Management tone: Management shifted from high-level project tracking to naming specific completion evidence: Secretariat I in service, Harmon Creek III beginning operations, Blackcomb commissioning, and BANGL volumes above 200,000 bpd. The tone is execution-focused, with direct answers on capex, buybacks, NGL sensitivity, and the MPC relationship.

Management Guidance

Management guided to mid-single-digit adjusted EBITDA growth in 2026, with growth exceeding 2025 and weighted toward the back half. It reaffirmed 12.5% distribution growth for 2026 and 2027 and a 1.3x distribution coverage target for 2026, 2027, and beyond. The 2026 capital spending outlook was raised by $500 million to $2.9 billion, described as a pull-forward of Gulf Coast fractionation spend rather than a budget overrun. Management also said Q3 should be stronger than Q2 and Q4 stronger than Q3.

Business Trajectory

Trajectory

Recent audited revenue is decelerating: revenue fell 14.4% quarter over quarter in Q4 2025 to $3,097 million, then another 7.6% in Q1 2026 to $2,863 million. Gross and EBITDA margins compressed, and trailing four-quarter average revenue growth sits at 10.6%. Management's Q2 2026 call framed the answer as a back-half-weighted EBITDA inflection, with adjusted EBITDA up 5% year over year and Q3/Q4 expected to strengthen sequentially.

Revenue & Margin Trajectory
RevenueGross margin$0$2.0B$756M$807M$692M$856M$889M$933M$1.0B$1.3B$1.5B$1.6B$1.6B$2.1B$2.1B$2.2B$2.2B$2.1B$2.0B$2.1B$2.1B$2.2B$2.3B$2.4B$2.6B$2.5B$2.8B$2.7B$2.5B$2.5B$2.5B$2.7B$2.7B$2.6B$2.7B$2.8B$2.8B$2.9B$2.8B$3.6B$3.1B$2.9B35%41%Q2'16Q3Q4Q1'17Q2Q3Q4Q1'18Q2Q3Q4Q1'19Q2Q3Q4Q1'20Q2Q3Q4Q1'21Q2Q3Q4Q1'22Q2Q3Q4Q1'23Q2Q3Q4Q1'24Q2Q3Q4Q1'25Q2Q3Q4Q1'26
RevenueGross margin$0$2.0B$756M$807M$692M$856M$889M$933M$1.0B$1.3B$1.5B$1.6B$1.6B$2.1B$2.1B$2.2B$2.2B$2.1B$2.0B$2.1B$2.1B$2.2B$2.3B$2.4B$2.6B$2.5B$2.8B$2.7B$2.5B$2.5B$2.5B$2.7B$2.7B$2.6B$2.7B$2.8B$2.8B$2.9B$2.8B$3.6B$3.1B$2.9B35%41%Q2'16Q3Q4Q1'17Q2Q3Q4Q1'18Q2Q3Q4Q1'19Q2Q3Q4Q1'20Q2Q3Q4Q1'21Q2Q3Q4Q1'22Q2Q3Q4Q1'23Q2Q3Q4Q1'24Q2Q3Q4Q1'25Q2Q3Q4Q1'26
Gross margin as reported.
Share Price — 12 Months
$20$40$60$052-wk high $61Aug '25NovFeb '26MayAug '26
52-week range $48–$61.
Share Price — 12 Months
$20$40$60$052-wk high $61Aug '25NovFeb '26MayAug '26
52-week range $48–$61.
The Numbers

The Model

The model projects FY+1 revenue of $12,900 million and EBITDA of $7,456 million, a 57.8% EBITDA margin. FY+2 revenue is projected at $13,950 million with EBITDA of $8,398 million, a 60.2% margin. Near-term revenue is anchored by the back-half 2026 project starts; FY+2 is driven by the full-year contribution from ramping natural gas, NGL, and long-haul pipeline projects.

Revenue & EBITDA Projections
REVENUE$12.4B$12.9B$13.9BFY25FY+1 (E)FY+2 (E)EBITDA & MARGIN$7.1B$7.5B$8.4B60.2%FY25FY+1 (E)FY+2 (E)
REVENUE$12.4B$12.9B$13.9BFY25FY+1 (E)FY+2 (E)EBITDA & MARGIN$7.1B$7.5B$8.4B60.2%FY25FY+1 (E)FY+2 (E)
Solid bars are reported actuals; outlined bars are model projections — not company guidance.
MetricFY2025Next FY (E)Following FY (E)
Revenue$12.4B$12.9B$13.9B
YoY Growth—+4.1%+8.1%
EBITDA$7.1B$7.5B$8.4B
EBITDA Margin57.6%57.8%60.2%

Projections are the median of 5 independent model runs. The model’s revenue sits 1.9% above analyst consensus.

Management guided to mid-single-digit adjusted EBITDA growth in 2026, with growth exceeding 2025 and weighted toward the back half. It reaffirmed 12.5% distribution growth for 2026 and 2027 and a 1.3x distribution coverage target for 2026, 2027, and beyond. The 2026 capital spending outlook was raised by $500 million to $2.9 billion, described as a pull-forward of Gulf Coast fractionation spend rather than a budget overrun. Management also said Q3 should be stronger than Q2 and Q4 stronger than Q3.

What Could Go Right — and Wrong

What good looks like
  • All 2H 2026 project starts — Harmon Creek III, Titan expansion, BANGL expansion, and Blackcomb — commission and ramp on schedule, delivering stronger Q3 and Q4 EBITDA.
  • Permian gas production continues growing from nearly 25 Bcf/d toward the 35 Bcf/d forecast for 2030, pulling more volume through MPLX systems.
  • BANGL expansion reaches 300,000 bpd by Q4 2026, and volumes keep rising as Secretariat I fills the Delaware processing system.
  • A data-center or power contract materializes, converting MPLX's AI/gas linkage from thematic to contractual.
  • Management participates in a new Permian egress project, extending the growth runway beyond the current slate.
What could go wrong
  • MPC reduces volumes or changes the relationship; MPC is 48% of 2025 revenue and 88% of crude segment revenue.
  • NGL prices weaken beyond the hedge; every $0.05 move is about $20 million annual EBITDA.
  • Back-half project ramp slips, delaying the expected Q3/Q4 EBITDA sequence and weakening 2027 growth.
  • Capex escalates beyond the $2.9 billion pull-forward frame, pressuring coverage and leverage.
  • Data-center gas demand fails to become contractual, leaving AI exposure permanently unquantified.
What’s Next

Looking Ahead

The next 12 months are defined by project conversions: Harmon Creek III began operations in August 2026, Titan treating capacity is directed to exceed 400 MMcf/d by Q4 2026, BANGL expands to 300,000 bpd, and Blackcomb is expected to enter full commercial service in Q4 2026. Management expects Q3 EBITDA stronger than Q2 and Q4 stronger than Q3, and says 2027 growth is already in hand from the existing project set.

Catalysts
  • Q3 2026Harmon Creek III ramp — Marcellus processing capacity reaches 8.1 Bcf/d; operations began August 2026.
  • Q3 2026Titan third AGI well — Third acid gas injection well completed as sour-gas treating expansion progresses.
  • Q4 2026Titan treating capacity >400 MMcf/d — Sour gas treating expansion expected to exceed 400 MMcf/d by end of Q4.
  • Q4 2026BANGL expansion to 300 kbpd — NGL pipeline capacity expected online; Q2 volumes already above 200 kbpd.
  • Q4 2026Blackcomb full service — Full commercial service expected after July 2026 commissioning; contracted revenue starts.
Numbers

Financials

Annual Summary

MetricFY2024FY2025TTMYoY
Revenue$10.9B$12.4B$12.4B+13.6%
Gross Margin44.2%49.0%49.0%+480bps
EBITDA$6.6B$7.1B$43.8B+8.6%
EBITDA Margin60.3%57.6%55.2%265bps
Net Income$4.3B$4.9B$4.7B+13.8%
Free Cash Flow$4.9B$5.2B$29.9B—
Net Cash————

Key Ratios (Trailing)

Valuation
  • P/E TTM—
  • EV/EBITDA TTM—
  • EV/Revenue TTM—
  • Price/FCF TTM—
Profitability
  • Gross Margin (TTM)49.0%
  • EBITDA Margin (TTM)55.2%
  • Net Margin (TTM)38.0%
  • ROIC11.1%
  • FCF Conversion73.0%
  • SBC / Revenue0.0%
Reference

The Company

MPLX is a diversified, large-cap master limited partnership formed in 2012 by Marathon Petroleum Corporation. It owns and operates midstream energy infrastructure and logistics assets and provides fuels distribution services. MPC owns the general partner and approximately 64% of limited partner interests as of March 31, 2026. The company reports two segments: Crude Oil and Products Logistics, and Natural Gas and NGL Services.

Operations run from the Permian, Marcellus, Utica, and Gulf Coast, with design throughput capacity of 6,520 MMcf/d in Marcellus gas processing, 2,745 MMcf/d in the Southwest, and 413 mbpd of Marcellus fractionation. Management describes the strategy as "wellhead to water" and says over 90% of organic growth capital is directed at natural gas and NGL opportunities.

Business Segments

Crude Oil and Products Logistics
One of two reportable segments
Gathering, transportation, storage, and distribution of crude oil, refined products, other hydrocarbon-based products, and renewables.
Growth driver: Higher rates plus butane blending added over $20 million in Q2 2026.
Natural Gas and NGL Services
One of two reportable segments
Wellhead-to-market services including gathering, treating, processing, and transportation of natural gas and NGLs.
Growth driver: Over 90% of organic growth capital directed to this segment

Competitive Landscape

The 10-K frames competition through broad categories — independent terminal and pipeline companies, integrated petroleum companies, refining and marketing companies, and other midstream providers — rather than a single named rival. It describes natural gas and NGL competition from integrated oil companies, independent E&Ps, interstate and intrastate pipelines, and marine and land-based transporters.

  • Enterprise
    Named in generated Wiring competitor map; not discussed in provided MPLX filings.
  • Energy Transfer
    Named in generated Wiring competitor map; not discussed in provided MPLX filings.
  • Kinder Morgan
    Named in generated Wiring competitor map; not discussed in provided MPLX filings.
  • ONEOK
    Named in generated Wiring competitor map; not discussed in provided MPLX filings.
  • Targa
    Named in generated Wiring competitor map; not discussed in provided MPLX filings.
10-K discloses only competitor categories, not individual companies; individual names are from the generated Wiring map and are not confirmed by company filings.

Supply Chain

MPLX sits between producers and demand centers, moving crude, refined products, natural gas, and NGLs through owned pipelines, processing, fractionation, and export assets. Neighbor transcripts confirm the NextDecade LNG relationship, while supplier relationships are not documented.

Analysis updated Aug 12, 2026, reviewing Q1 FY2026. Prices delayed. Built with The Buildout’s published methodology. Not investment advice. No positions held. © The Buildout 2026.

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