Marathon Petroleum Q1 2026 Financial Results Highlights and Insights

Main highlights of Marathon Petroleum’s Q1 2026 financial results

1) Strong reported operating performance (refining execution and safety)

• Refineries ran at 89% utilization while maintaining nearly 100% capture during the quarter. ¹
• Management also highlighted the strongest first quarter on process safety and the lowest level of unplanned downtime in the decade, despite completing ~40% of full-year planned maintenance activity. ¹

2) Earnings and cash generation results

• Adjusted EPS was $1.65 and adjusted EBITDA was $2.8 billion. ²
• Cash flow from operations, excluding working capital changes, was $1.7 billion. ³²
• Working capital was a $573 million use of cash during the quarter, described as primarily driven by inventory build from lower throughput partially offset by higher crude pricing. ³

3) Shareholder returns and balance-sheet cash position

• MPC returned over $1 billion to shareholders during Q1 and that included $750 million of share repurchases. ³²
• In addition, the company announced an incremental $5 billion share repurchase authorization. ⁴⁵
• MPC ended the quarter with ~$2.2 billion of consolidated cash, including $645 million at MPC and over $1.5 billion at MPLX. ³

4) Segment performance: Refining & Marketing strength; Midstream pressures from derivatives and prior items

• Consolidated adjusted EBITDA increased year-over-year by nearly $800 million, primarily driven by the Refining & Marketing segment. ²
• Refining & Marketing (R&M) delivered ~$1.4 billion of adjusted EBITDA. ²
• Within R&M, Gulf Coast incremental adjusted EBITDA rose by $596 million, driven by increased Gulf Coast margins tied to strong domestic and international demand. ²
• R&M refining turnaround costs totaled $530 million in Q1, and MPC completed ~40% of its full-year activity safely. ²
• Midstream adjusted EBITDA decreased $122 million versus Q1 2025, primarily driven by derivative losses, absence of a nonrecurring benefit that existed in Q1 2025, and divestiture of non-core gathering/processing assets. ³

5) Refining operating economics and product mix management

• First-quarter capture was 99% and management credited commercial execution and integrated logistics for adjusting geographies, optimizing feedstocks, and placing products into higher-value markets. ⁶
• The quarter also benefited from favorable distillate margins. ⁶
• Management emphasized maximizing diesel and jet production to match demand, and noted that jet production capabilities expand further with the Robinson Jet flexibility investment expected to come online in Q3. ⁶

6) Derivatives and volatility impacts (a key swing factor in reported results/cash)

• Management quantified ~$500 million of unrealized derivative losses in Q1, while noting additional related impacts including ~$63 million in midstream and ~$340 million impact on margin calls to working capital (overall cash use described in the same discussion). ⁷
• They also characterized their derivative program as consistent with prior quarters, and framed the quarter’s challenge as extreme commodity volatility, with the expectation that much of the physical/coverage effects would unwind over time. ⁸
• In the discussion of Q2, management stated the company expected a capture exceeding 100% absent the timing impact of derivatives, and that these effects were expected to unwind into Q2 as physical associated positions come through. ⁹

7) Capital investment and growth execution underway (plus MPLX relationship benefits)

• MPC reported investing nearly $330 million in Refining & Marketing in Q1, focused on increasing jet optionality and deploying capital into “advantage assets.” ¹
• Management noted major jet-related progress:
  • More than 30,000 bpd of incremental jet production capacity was brought online at the Garyville refinery in March. ¹⁰
  • El Paso yield improvement was expected to enhance production of specialty gasolines in Q2. ¹⁰
  • Robinson Jet flexibility was expected to come online in Q3, enabling ~10,000 bpd of incremental jet fuel production. ¹⁰
• On the midstream/growth side (MPLX), management described long-term demand opportunities tied to an agreement with E1, securing long-term delivered demand for up to 40% of the volumes MPC will purchase from MPLX’s Gulf Coast fractionation facilities. ¹⁰
• MPC also disclosed that MPLX’s broader buildout for 2026 involves investing over $2.4 billion, with projects expected to transition from construction to cash generation in the second half of 2026. ¹⁰

8) Operating conditions and market context

• Late in the quarter, management said geopolitical events tightened global markets, disrupted trade flows, and drove global cracks higher, and they estimated ~6 million bpd (close to 6% of global refined products capacity) had come offline during the Middle East conflict (noting variability in estimates and the uncertainty around timelines for return of supply). ¹
• MPC stated it is largely insulated from global crude supply disruptions because its crude sourcing is mainly from the United States and Canada. ¹
• They further indicated that domestic demand remained strong, with exports providing incremental upside. ¹

9) Outlook framing for near term (Q2 operating readiness)

• Management guided that for Q2 Refining & Marketing, it planned ~94% utilization, anchored by the strong first-quarter turnaround performance and pre-executing ~40% of planned turnarounds to prepare for strong demand. ⁹
• They also emphasized continuing to manage costs and execute safely/reliably while staying responsive to market conditions. ¹¹⁹

Bottom line

Q1 2026 for Marathon Petroleum featured strong operational execution (89% utilization, near-100% capture, and exceptional safety/unplanned downtime), solid financial outcomes (adjusted EPS $1.65; adjusted EBITDA $2.8B; $1.7B operating cash flow excluding working capital changes), and heavy shareholder returns (>$1B in Q1 plus a $5B incremental buyback authorization), while results also reflected notable derivative-driven volatility (including ~$500M unrealized derivative losses and cash-use impacts via margin calls) and midstream headwinds partially offsetting gains elsewhere. ³¹⁴²⁷⁹