Marathon Petroleum (MPC) Change in Inventory (2010 - 2026)

Marathon Petroleum has disclosed Change in Inventory across 17 years of filings, most recently posting $635.0 million for Q1 2026.

• Change in Inventory for Q1 2026 came in at $635.0 million, down 30.98% year-over-year; the trailing twelve-month figure through Mar 2026 was $311.0 million (down 57.28% YoY), and the FY2025 annual result was $596.0 million, up 120.74% from the prior year.
• Change in Inventory came in at $635.0 million for Q1 2026 at Marathon Petroleum, up from $311.0 million in the prior quarter.
• In the past five years, Change in Inventory ranged from a high of $1.6 billion in Q2 2022 to a low of -$1.2 billion in Q3 2022.
• The 5-year median for Change in Inventory is $107.0 million (2024), against an average of $163.4 million.
• Across the five-year window, Change in Inventory soared 248.77% in 2022 and slumped 2110.53% in 2025, its largest moves.
• Marathon Petroleum's Change in Inventory stood at -$1.0 billion in 2022, then increased by 18.25% to -$824.0 million in 2023, then jumped by 61.41% to -$318.0 million in 2024, then jumped by 197.8% to $311.0 million in 2025, then surged by 104.18% to $635.0 million in 2026.
• The last three Change in Inventory figures came in at $635.0 million (Q1 2026), $311.0 million (Q4 2025), and -$253.0 million (Q3 2025), per Business Quant data.