Sunoco's 2026: Can Physical Volumes and Margins Deliver the Guidance?

Sunoco's record 2025 performance was built on a massive physical volume increase, primarily from its transformative acquisition. The company closed the $9.1 billion Parkland transaction on October 31, adding more than 200 U.S. convenience stores and significantly expanding its fuel distribution footprint. This directly fueled a dramatic jump in volumes, with fuel distribution volumes reaching 3.3 billion gallons in the fourth quarter, up 54% year-over-year. The Parkland contribution was the dominant driver, but the legacy Sunoco business also held its ground, with over 2% volume growth in its core operations.

Financially, this volume surge translated into a powerful earnings report. For the full year, Sunoco delivered adjusted EBITDA of $2.12 billion, up 36%. The fourth quarter alone saw record adjusted EBITDA of $706 million, excluding about $60 million in one-time transaction costs. This performance was a composite of the new Parkland assets and a recovering refining environment. The fuel distribution segment, which includes the added convenience stores, posted $391 million in adjusted EBITDA for the quarter.

The bottom line is that Sunoco's 2025 guidance was not just met-it was exceeded, largely due to the volume injection from Parkland. However, this sets a high bar for 2026. The company's new target range for full-year adjusted EBITDA is $3.1 billion to $3.3 billion. To reach the midpoint of that guidance, Sunoco needs to generate roughly $1.2 billion in additional EBITDA from a baseline that already includes the Parkland volume boost. This implies that the 2026 plan hinges on a major step-up in refining margins and effective synergy capture, rather than another massive volume acquisition. The physical and financial baseline has been reset, but the path forward requires a different kind of growth.

The 2026 Margin Challenge: Guidance vs. Market Forecasts

Sunoco's ambitious 2026 guidance now faces a critical test: can the company's refining margins hold up or improve enough to deliver a 46-56% leap in adjusted EBITDA? The plan assumes total Parkland synergies of approximately $125 million and a multi-year acquisition path, but the core financial lift must come from operations. This is where external forecasts introduce a headwind.

The U.S. Energy Information Administration projects a 6% decline in U.S. gasoline prices for 2026. That forecast directly pressures the crack spreads that measure refinery profitability. If wholesale gasoline prices fall more than crude oil prices, the margin between them compresses. This creates a tension with Sunoco's guidance, which implicitly relies on sustaining or building upon the strong 2025 margin recovery. That recovery was driven by tight global fuel supplies and seasonal demand, as seen in the sharp fourth-quarter rebound for refiners like PBF Energy, where gross margins more than doubled.

The market is signaling a shift. While the EIA expects crack spreads to be "more than they were in the previous two years," that is a relative statement against a low 2024 base, not a guarantee of high absolute levels. The broader trend is toward lower crude oil prices, which are expected to account for a smaller share of the final gasoline retail price. This suggests a more competitive environment for refiners, where the benefit of lower input costs may be offset by weaker output prices.

Sunoco's own operational plan adds another layer of complexity. The company has scheduled a planned 50-day maintenance turnaround at its Burnaby Refinery starting in late January. Such extended outages are necessary for safety and efficiency but temporarily remove refining capacity from the market, which can be a double-edged sword. While it may support margins by reducing supply during the outage, it also means lost production and revenue during that period.

The bottom line is that the guidance requires Sunoco to navigate a period of expected price pressure while managing a major refinery outage. It must capture its promised synergies and grow volumes through bolt-on acquisitions, all while hoping that its refining margins can hold firm or even improve. The 2025 recovery provides a foundation, but the 2026 path looks steeper, with external price forecasts and supply dynamics creating a more challenging backdrop than the one that fueled last year's success.

Operational Catalysts and Key Risks

The path to Sunoco's 2026 guidance is now defined by a handful of specific operational events and a clear, external price risk. The company's own plan outlines two near-term catalysts that will directly impact its physical throughput and costs. First, the planned 50-day maintenance turnaround at Burnaby Refinery beginning at the end of January is a major operational event. While necessary for long-term efficiency, this extended outage will temporarily halt production, affecting 2026 refining volumes and generating costs. Second, the closing of the TanQuid acquisition in the first quarter of 2026 is a critical execution milestone. This bolt-on deal is meant to drive growth capital, but its successful integration will be key to hitting the company's multi-year acquisition target and supporting volume expansion.

The primary risk to the entire plan, however, is external and price-driven. The U.S. Energy Information Administration forecasts a 6% decline in U.S. gasoline prices for 2026. This creates a direct headwind to the refining margin assumptions embedded in the guidance. Even if crack spreads are expected to be "more than they were in the previous two years," the EIA's forecast suggests they will still be lower than in the peak years of 2022 and 2023. This sets up a tension: Sunoco needs its refining operations to generate significantly more profit per barrel to meet its EBITDA target, yet the market is pricing its key output lower.

The successful integration of the Parkland retail footprint is the third, foundational risk. The company's guidance includes total Parkland synergies of approximately $125 million. Achieving this target is non-negotiable for the financial plan. Any delays or cost overruns in realizing these savings would directly pressure the bottom line, making it harder to offset the margin pressure from lower gasoline prices. It also underpins the volume growth story; maintaining and expanding the distribution network is essential to keep physical throughput high.

The bottom line is that Sunoco's 2026 hinges on a delicate balancing act. The company must execute its planned refinery maintenance without excessive cost or disruption, close and integrate acquisitions like TanQuid on schedule, and capture its promised Parkland synergies. All of this must happen while navigating a market where the fundamental price of its product is forecast to fall. The operational catalysts are in the plan, but the key risk is that the market's forecast for lower gasoline prices could undermine the margin engine needed to deliver the guidance.