Analysis-Global oil refiners see short-term boost from higher margins

Refining margins have unexpectedly surged, reaching their highest levels since March 2024 at $8.37 per barrel, driven by refinery closures in the US and Europe and unplanned outages which have tightened fuel supply ahead of peak summer demand; this contrasts with earlier warnings of a bleak year for refiners and falling crude oil prices, however, analysts caution that this strength may be short-lived due to potential impacts from trade wars and increased fuel production.

Analysis

Global refining margins have experienced an unexpected resurgence, with consultancy Wood Mackenzie reporting a May 2025 global composite margin of $8.37 per barrel, the highest since March 2024, offering a temporary reprieve to a sector previously anticipating a challenging year. This uplift, contrasting with falling crude oil prices in May and weaker first-quarter profits reported by majors like TotalEnergies (TTEF) and BP (BP), is attributed by Sparta Commodities to a tight supply-demand balance for refined products. Key drivers include significant refinery capacity reductions from announced closures such as Petroineos’ Grangemouth, Shell’s (SHEL) Wesseling, LyondellBasell’s (LYB) Houston refinery, and upcoming shutdowns for Phillips 66’s (PSX) Los Angeles and Valero’s (VLO) Benicia facilities, compounded by unplanned outages including a 1.5 million barrels per day (bpd) disruption on the Iberian peninsula and issues at Nigeria's Dangote and Mexico's Olmeca refineries. Energy consultancy FGE projects tighter markets for transport fuels in 2025, with gasoline supply declining by 180,000 bpd while demand rises 28,000 bpd. This supply constraint, coupled with a 50 million barrel drawdown in OECD fuel inventories between January and May as noted by JPMorgan, coincides with anticipated peak summer demand. U.S. refining executives from Phillips 66 and Marathon Petroleum (MPC) have expressed optimism regarding near-term demand and tightening inventories. However, this margin strength is widely viewed as transient; Wood Mackenzie analysts describe it as a 'short-term bump,' and the International Energy Agency forecasts global oil demand growth to decelerate to 650,000 bpd for the remainder of 2025 from nearly 1 million bpd in the first quarter, citing trade uncertainties. An unnamed veteran oil trader advised that refiners should be hedging aggressively, suggesting current conditions may represent a cyclical peak for profitability.

Key Decisions for Investors

• Investors should view the current spike in refining margins, driven by significant capacity offline and strong pre-summer demand, as a potentially short-lived window of opportunity, considering analyst expectations of a fade later in 2025.
• Closely track data on refinery restarts, global fuel inventory levels, particularly OECD stock movements as highlighted by JPMorgan, and the impact of trade policies on global oil demand, as these are critical determinants for the sustainability of current high margins.
• While specific refiners like Phillips 66 (PSX) and Marathon Petroleum (MPC) express near-term optimism based on their first-quarter earnings calls, evaluate individual company exposure to both the benefits of current tightness and the risks from anticipated demand slowdowns and structural industry pressures previously impacting companies like TotalEnergies (TTEF) and BP (BP).
• Heed the cautionary advice from market experts suggesting current conditions might be peak profitability for refiners, and consider strategies to manage risk or capitalize on potentially inflated valuations if the positive sentiment is already priced in, especially as global oil demand growth is forecast by the IEA to slow significantly.