MPLX has delivered a very strong 5 year share price return, yet the stock still screens as undervalued on several key checks. This raises the question of how much of its growth pipeline is already reflected in today’s US$58.46 price.

• The unit price has gained 220.2% over the past 5 years, which puts longer term holders in a strong position and makes fresh valuation checks especially important.
• RBC’s focus on MPLX’s project ramp up and its stake in new Permian to Gulf Coast pipeline capacity can support expectations for future cash flows. At the same time, the recent US$2b of new debt and ongoing acquisition plans may add financing and execution risk to that outlook.
• MPLX scores highly on Simply Wall St’s checks and is assessed as undervalued in 5 of 6 valuation tests, which suggests the broader indicators lean cheap rather than fully pricing in its past returns.

The issue now is whether MPLX’s current price still leaves enough upside to compensate for the project and balance sheet risks that come with its growth plans.

Is MPLX Still Cheap on Earnings?

The P/E ratio fits MPLX well because earnings are a key driver for investors watching its fee based midstream cash flows. On this metric, MPLX trades on a P/E of 12.5x, which is slightly below the Oil and Gas industry average of 13.0x and sits at a discount to the peer group average of 20.6x. That indicates a modest earnings based discount, even after the strong unit price performance over the past five years.

The tailored fair P/E ratio for MPLX is 22.9x, which reflects what investors might typically pay given its earnings profile, industry, size and risk factors. The current 12.5x multiple is therefore well below this benchmark. Despite the recent news on new Permian to Gulf Coast pipeline capacity and the US$2b debt raise to support acquisitions and projects, the earnings multiple still prices MPLX at a discount to the level suggested by this model.

On a P/E basis, MPLX appears undervalued, with its earnings multiple sitting well below both peers and the modelled fair ratio.

The MPLX Narrative: What Would Justify Today's Price?

Simply Wall St Narratives pick up where MPLX's valuation puzzle leaves off by spelling out which future paths for earnings, growth and margins would need to hold for the current unit price to look high or low. Each narrative links its conclusion to a clear view on how MPLX's growth, profitability and key risks could change over time, giving you a frame of reference you can revisit as new information becomes available.

You can add your voice to the Simply Wall St community by sharing a Narrative on MPLX that lays out a clear, number driven view on whether projects like the new Permian to Gulf Coast pipeline capacity and the recent US$2b debt raise ultimately support today's price.

Set out your case on MPLX's earnings path and risk trade off, then track how that thesis holds up as new project milestones and results arrive.

Do you think there's more to the story for MPLX? Head over to our Community to see what others are saying!

The Bottom Line

MPLX still screens as undervalued on earnings compared with both its industry and tailored fair P/E anchor, even after a strong 5 year run. The key question is whether that discount reflects overlooked cash flow potential or a reasonable cushion for project execution and balance sheet risk tied to new pipelines and recent debt raising. What matters from here is whether MPLX can deliver on its growth plans without eroding returns to unitholders through higher financing costs or delayed project benefits.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.