MPLX LP - Unit Profit Margin

As of the most recent data (March 2026), MPLX shows a profit margin of 36.39%. That compares with 38.93% in the prior-year period — down 6.5% year over year. That is above the Energy sector average of 11.48%. Scroll down for historical charts and peer comparison views.

Compared with the year-ago period, MPLX's profit margin is now 36.39% (was 38.93%) — a 6.5% year-over-year decrease. Pairing that YoY change with peer averages gives a clearer picture of whether MPLX LP - Unit is outperforming or lagging.

The Energy sector average profit margin is about 11.48%. MPLX LP - Unit is at 36.39%, which is higher that average. That is roughly 217.0% above the sector mean. Use the comparison chart on this page to see how MPLX stacks up against individual peers as well.

That compares with 38.93% in the prior-year period — down 6.5% year over year. Improvement over multiple periods is generally more meaningful than a single strong quarter. Compare MPLX LP - Unit with peers to see if the move is company-specific or sector-wide.

Besides this profit margin page, Stockcircle has MPLX LP - Unit's full stock overview, other financial metrics, insider and congress trade tabs, and tools to follow the stock. Together they help you connect profit margin (currently 36.39%) with ownership activity and broader fundamentals.