Five oil majors report Q3 earnings this week. RBC Capital Markets estimates BP, Chevron, ExxonMobil, Shell and TotalEnergies will post combined third-quarter profit of roughly $53 billion, up from $48 billion in the second quarter and more than double the level of a year earlier. That is an extraordinary number. It is also, for Shell specifically, the wrong place to start.
The right place is a refinery in Rotterdam.
Where Shell’s Money Is Coming From
Shell announced a forecast for third-quarter refining margins reaching a record $42 per barrel, nearly doubling the previous quarter’s $24 per barrel. According to Reuters, that level exceeds the previous record, set in 2022. The mechanism is straightforward: the margin measures the gap between the cost of crude bought by refiners and the value of the products derived from it, notably gasoline, diesel and jet fuel.
Why did that gap blow out? The imbalance does not stem solely from crude supply. Volumes from the Middle East have recently increased, but regional production and exports of refined products remain severely disrupted. Global benchmark Brent crude prices surged after U.S. and Israeli strikes on Iran on February 28, 2026, as the conflict largely halted maritime traffic through the Strait of Hormuz. Crude got expensive, but refined products got scarcer still.
That distinction matters enormously. When oil fields drive a profit surge, cash flow is relatively predictable across price cycles. The $42 refining margin tailwind masks weaker trends elsewhere in Shell’s portfolio, specifically in chemicals, where margins fell from $270 per tonne in Q2 to $208 per tonne in Q3. Upstream production, meanwhile, is expected to be roughly 1.68 to 1.88 million barrels of oil equivalent per day. The company is earning a war premium through its processing infrastructure, not growing its base production.
The Investment Thesis
Shell reports Thursday, October 29. The bull case is simple: record refining margins combining with a strengthened gas production base. The company raised its integrated gas production outlook to 740,000 to 780,000 barrels of oil equivalent per day, including output from Canada’s ARC Resources, whose acquisition was completed on September 2. That acquisition adds a durable production layer beneath the cyclical refining windfall.
On capital returns, the pattern has been consistent. Shell has now announced at least $3 billion in buybacks for 19 consecutive quarters. Reuters reported that HSBC expects Shell to announce a $3.5 billion buyback for the fourth quarter, an acceleration that would signal management’s confidence in sustaining cash generation after the refining spike fades.
Shell, BP and TotalEnergies all expect refining margins to increase three- to fourfold in the third quarter from a year ago. For context on the sector: Reuters predicted Shell could report an 84% increase in earnings from last year, with that figure at 155% for BP, 111% for TotalEnergies, and 101% for Exxon. Chevron is seen booking the biggest annual profit increase, at 158% for the third quarter, based on LSEG data.
The Risks
Refining margins revert. They always do. As refining margins remain a volatile, cyclical variable, Shell’s ability to sustain cash generation when these spreads mean-revert will be the primary indicator of the portfolio strategy’s durability. A ceasefire, or even credible peace talks, could collapse crack spreads inside a single session.
There is also a one-off cash drag. Shell expects about $2.5 billion in cash outflow in Q3 2026 tied to German BEHG emissions certificates, affecting operating cash flow excluding working capital. That is non-recurring, but it will cloud the headline free cash flow number on Thursday.
The surge in cash has not led to a spending spree. Since the Iran war began in late February, the majors have largely reacted cautiously, directing billions toward debt reduction instead of major new investments. LSEG estimates put their combined debt at $150 billion in the third quarter, down from $200 billion in the first quarter. Shell is part of that trend, with net debt falling to $41.8 billion at the end of Q2, compared with $52.6 billion at the end of Q1.
What Investors Should Watch
Three numbers matter most on Thursday. First, whether Shell maintains its 2026 capital spending range of $24 billion to $26 billion or raises it, which would signal a shift away from financial discipline. Second, the size of any new buyback announced alongside results. Third, management’s guidance on Q4 refining margins, which will tell investors how much of the $42 level they are willing to model forward.
The broader week will confirm or complicate the refinery thesis. Exxon signalled higher refining margins in the quarter could boost downstream profit by $4.5 billion versus the previous quarter, and TotalEnergies expects cash flow from its refining and chemicals business to double to around $4 billion from the previous quarter. If those numbers arrive, the war premium in refining is confirmed sector-wide, not a Shell anomaly.
Shell is the right name to study first because it is most exposed to the single variable that is driving this entire earnings cycle. The record margin is real. The question is whether investors are paying for that margin, or for what remains when it normalises.
