MPC · 10-Q · 2026Q3 · Full report

Renewable Fuel Compliance Costs

Marathon Petroleum Corp · 2026-11-03 · Importance 57 · Surprise 64

MPC purchases Renewable Identification Numbers (RINs) to meet part of its Renewable Fuel Standard compliance obligations. RIN expenses included in Refining & Marketing margin totaled $1.93 billion in the first nine months of 2026, compared with $880 million in the same 2025 period, an increase of more than 10%. The increase was mainly due to higher RIN costs and blending requirements, partially offset by lower obligated volumes.

Key facts

• Marathon Petroleum's purchased-RIN expenses included in Refining & Marketing margin were $1.93 billion in the first nine months of 2026, compared with $880 million in the same 2025 period; the increase mainly reflected higher RIN costs and blending requirements, partly offset by lower obligated volumes. source
• Marathon Petroleum's purchased-RIN expenses included in Refining & Marketing margin were $654 million in the third quarter of 2026, compared with $212 million in the third quarter of 2025; the increase mainly reflected higher blending requirements and RIN costs. source