The global oil and gas industry is heading into 2027 with its strongest balance sheets in years, paving the way for a 5% rise in investments and a fresh wave of mergers and acquisitions as companies scramble to replenish reserves, Wood Mackenzie strategists said in a note on Thursday.
Surging prices and margins through 2026 have fueled accelerated deleveraging, leaving most major energy firms entering 2027 with gearing ratios below 20%.
Wood Mackenzie said that financial cushion provides critical optionality, but executives face a stark structural challenge.
Excluding Middle Eastern national oil companies, production across Wood Mackenzie's five peer groups is projected to decline by 31%, or 18 million barrels of oil equivalent per day, between 2030 and 2040.
"Balance sheets are in good shape," said Tom Ellacott, senior vice president of Corporate Research at Wood Mackenzie.
However, he noted that output is expected to decline. "But a 31% production decline between 2030 and 2040 means companies will have to manage rising tension between capital discipline and upstream portfolio renewal in 2027. That dilemma is the defining feature of the 2027 planning cycle."
Despite the pressure to spend, capital discipline is projected to hold firm, even with Brent crude trading above Wood Mackenzie's $73-per-barrel base case.
Reinvestment rates are forecast to average 50% of operating cash flow next year, while shareholder distributions will take up 43%, split between 32% in dividends and 11% in buybacks.
The consultancy firm said that the sector requires an average price of $55/bbl to break even after funding investments and dividends.
Companies will nevertheless need to brace for volatility. Under base-case assumptions, Wood Mackenzie said that operating cash flow in 2027 is forecast to remain 14% above 2025 levels.
The consultancy said a rally to $90/bbl would expand cash flows by an additional 18%, or $104 billion, whereas a drop to $50/bbl would wipe out 24%, or $138 billion, of operating cash flow, hitting US majors, large-cap US and global players the hardest with declines of up to 29%.
Upstream oil and gas investments continue to reclaim territory. Wood Mackenzie said that upstream's share of total capital expenditure has climbed eight percentage points since 2021 as spending on power and renewables, which peaked in 2024, continues to decline.
Two-thirds of upstream capital for the tracked peer groups is flowing into the Middle East and the Americas, where tight oil, deepwater projects, and liquefied natural gas serve as primary growth drivers.
Wood Mackenzie said that strategic partnerships between NOCs and international oil companies are picking up as firms navigate shifting geopolitics.
"Capital allocation constraints and the pressure to rebuild upstream portfolios for the next decade are already triggering more NOC-IOC partnerships and strategic ventures," said Neivan Boroujerdi, Head of Corporate NOC Analysis at Wood Mackenzie.
He added that geographic diversification, primarily toward the Americas, will be in focus.
Meanwhile, downstream strategies are mixed. Though refining closures continue in Europe and California, the tightness exposed in global systems during 2026 has forced a more cautious evaluation of exit timelines.
Near-term overcapacity in the petrochemicals sector is separating companies weathering the trough from those abandoning the sector entirely, with feedstock advantage acting as the primary dividing line.