US EIA warns oil inventories at multi-decade lows, pressuring Bitcoin miners
In brief
- OECD oil inventories projected to 2.3 billion barrels by December 2026, lowest since 2003
- Iran conflict and Hormuz shipping restrictions remove 11 million barrels per day
- Brent crude expected to average $105/barrel in summer 2026, up from $70–$90 in 2024–early 2025
- Rising energy costs could compress Bitcoin mining margins and force smaller operators offline
The inventory squeeze
OECD oil inventories are projected to plunge below 2.3 billion barrels by December 2026, marking the lowest level since the agency started tracking the metric in 2003. The decline is steep and accelerating. The EIA projects global inventories will contract by 6.3 million barrels per day in Q2 2026 and an even steeper 7.6 million barrels per day in Q3 2026.
Domestically, US commercial crude stocks shed 8 million barrels in the week ending May 29, 2026, bringing the total down to 433.7 million barrels. That figure sits 3% below the five-year average. The tightness reflects a mismatch between supply and demand that shows no immediate sign of easing.
Geopolitical disruption and rising prices
An estimated 11 million barrels per day of production has been knocked offline by escalating conflict involving Iran and persistent shipping restrictions through the Strait of Hormuz. That's a significant loss—roughly 14% of global demand. The EIA indicated that marine traffic through the waterway is unlikely to stabilize before early 2027, a timeframe that extends the supply pinch well into next year.
Roughly 20% of the world's oil passes through that narrow stretch of water on any given day. Disruptions there ripple globally. Brent crude, the global benchmark, is projected to average around $105 per barrel during June and July 2026. For context, Brent spent much of 2024 and early 2025 trading in the $70-$90 range, so the projected move represents a material shift upward.
Pressure on miners
The squeeze hits cryptocurrency mining operations where it matters most: the bottom line. Energy costs are the single largest variable expense for Bitcoin miners and proof-of-work operations. When oil prices surge, electricity costs tend to follow, particularly in regions where natural gas and oil prices are correlated.
Publicly traded Bitcoin miners have already been navigating tight margins after the April 2024 halving cut block rewards in half. A sustained period above $100 Brent could compress mining margins significantly. Smaller operators face the sharpest risk. Smaller miners could be forced to shut down rigs or sell Bitcoin reserves to cover operating expenses.
The inventory crunch is real. Whether it translates into a prolonged energy-cost headwind for miners depends on how quickly geopolitical tensions ease—and the EIA's current outlook suggests that relief won't arrive soon.
