Marathon Petroleum (MPC) Inventory (2010 - 2026)

Marathon Petroleum has disclosed Inventory across 17 years of filings, most recently posting $10.8 billion for Q1 2026.

• Inventory for Q1 2026 came in at $10.8 billion, up 2.63% year-over-year; the trailing twelve-month figure through Mar 2026 was $10.8 billion (up 2.63% YoY), and the FY2025 annual result was $10.1 billion, up 5.86% from the prior year.
• Inventory came in at $10.8 billion for Q1 2026 at Marathon Petroleum, up from $10.1 billion in the prior quarter.
• In the past five years, Inventory ranged from a high of $11.0 billion in Q2 2022 to a low of $8.8 billion in Q4 2022.
• The 5-year median for Inventory is $9.8 billion (2022), against an average of $9.9 billion.
• Across the five-year window, Inventory climbed 24.43% in 2022 and decreased 13.69% in 2023, its largest moves.
• Marathon Petroleum's Inventory stood at $8.8 billion in 2022, then grew by 5.55% to $9.3 billion in 2023, then advanced by 2.69% to $9.6 billion in 2024, then increased by 5.86% to $10.1 billion in 2025, then advanced by 6.27% to $10.8 billion in 2026.
• The last three Inventory figures came in at $10.8 billion (Q1 2026), $10.1 billion (Q4 2025), and $9.8 billion (Q3 2025), per Business Quant data.