Marathon Petroleum Corp
Close on Nov 2, 2026Market cap $120.86BP/E 14.8Yield 0.87%
Marathon Petroleum MPLX storage capacity: Underground caverns by Year
MPLX storage capacity: Underground caverns (mbbls, 10-K)
Marathon Petroleum MPLX storage capacity: Underground caverns: 3,632.00 mbbls in 2025, unchanged from a year earlier. That is the lowest of the 8 years on record here.
Where the 2025 figure comes from
“|| Caverns | 3,632”
Source: Marathon Petroleum Form 10-K (FY2025), filed 2026-02-26 ↗
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | MPLX storage capacity: Underground caverns (mbbls, 10-K) | Year on year | Source |
|---|---|---|---|---|
| 2025 | Dec 31, 2025 | 3,632.00 | 0.0% | Marathon Petroleum Form 10-K (FY2025), filed 2026-02-26 ↗ |
| 2024 | Dec 31, 2024 | 3,632.00 | 0.0% | Marathon Petroleum Form 10-K (FY2024), filed 2025-02-27 ↗ |
| 2023 | Dec 31, 2023 | 3,632.00 | -13.7% | Marathon Petroleum Form 10-K (FY2023), filed 2024-02-28 ↗ |
| 2022 | Dec 31, 2022 | 4,209.00 | -11.6% | Marathon Petroleum Form 10-K (FY2022), filed 2023-02-23 ↗ |
| 2021 | Dec 31, 2021 | 4,764.00 | +8.9% | Marathon Petroleum Form 10-K (FY2021), filed 2022-02-24 ↗ |
| 2020 | Dec 31, 2020 | 4,375.00 | -7.1% | Marathon Petroleum Form 10-K (FY2020), filed 2021-02-26 ↗ |
| 2019 | Dec 31, 2019 | 4,709.00 | +12.8% | Marathon Petroleum Form 10-K (FY2019), filed 2020-02-28 ↗ |
| 2018 | Dec 31, 2018 | 4,175.00 | – | Marathon Petroleum Form 10-K (FY2018), filed 2019-02-28 ↗ |
Cite this data
StockData. (2026). Marathon Petroleum MPLX storage capacity: Underground caverns, annual 2018–2025 [Data set]. Compiled from Marathon Petroleum SEC filings and investor materials. https://stockdatahq.com/stocks/mpc/kpis/sec-mplx-storage-caverns-mbbls
See every metric in the Marathon Petroleum KPI table. Data updated Oct 27, 2026.