MPLX LP

Red flags

• MPC represented 48% of total 2025 revenue and other income, including 88% of Crude Oil and Products Logistics revenue, creating substantial customer and credit concentration.
• Total debt rose to $26.006 billion from $21.206 billion in 2024; $1.503 billion is scheduled for repayment in 2026 and $2.002 billion in 2027.
• A natural-gas purchase commitment embedded in a keep-whole agreement was a $41 million Level 3 liability, based partly on a 100% probability of renewal and inactive-market NGL pricing assumptions.
• The BANGL acquisition generated a $236 million Level 3 contingent-consideration liability tied to forecast EBITDA growth and throughput volumes, with potential payments capped at $275 million.
• Environmental remediation liabilities increased to $21 million from $15 million, while the company states that the ultimate cost of all remediation and penalties cannot currently be estimated.
• The Tesoro High Plains Pipeline matter involved an original trespass damages assessment of approximately $187 million; MPLX paid approximately $4 million and ceased using the affected pipeline segment, but the related litigation continues.