Brent Posts 20% July Gain as US Strategic Reserve Falls to Lowest Since 1983
Partial Hormuz relief and OPEC+ supply additions capped crude's rally, but a 98-million-barrel SPR drawdown leaves Washington with limited buffer for a fresh disruption.
ICE Brent crude front-month closed Friday (2026-07-31) at $91.04 a barrel, finishing July up roughly 20% for the month even after briefly slipping to $88.00 on Friday (2026-07-24), when improving crude shipments through the Strait of Hormuz and an OPEC+ decision to add 188,000 barrels per day outweighed geopolitical fears, ibtimes.sg reported. NYMEX WTI crude front-month closed Friday (2026-07-31) at $84.67.7
Both contracts recorded the monthly gain against a backdrop of sustained U.S.-Iran conflict and repeated attacks on regional energy infrastructure. Analysts noted that recovering shipping activity through Hormuz helped offset the pressure that had driven prices above $100 earlier in the conflict, but added that geopolitical events are likely to generate only temporary price corrections unless physical supply flows are severed again directly.7
The strategic reserve Washington would call on in such a scenario is sharply depleted. The U.S. Strategic Petroleum Reserve stood at 414 million barrels at the war's start and had fallen to 316 million barrels by mid-July 2026, its lowest level since 1983, according to Foreign Policy.6
J.P. Morgan estimated that of the 8.4 billion barrels held in global storage when the Strait of Hormuz first closed, only about 800 million barrels were accessible without pushing physical infrastructure, including wells, pipelines, tankers and refineries, beyond operational limits. The broader global cushion was therefore far smaller than headline inventory figures suggested.6
The Hormuz closure at its nadir removed an estimated 13 million barrels per day from global supply, oilprice.com reported. J.P. Morgan analysts described the physical supply shock as "immense" despite what they called "relative calm in broader markets," noting that supply losses linked to the closure "were severe and intensified." Traders throughout the crisis held out hope for a swift resolution, yet the conflict has persisted for more than three months.3,2
U.S. commercial crude inventories dropped 8.3 million barrels in the week to Wednesday (2026-06-17), the Energy Information Administration reported, while the SPR fell an additional 8.9 million barrels over the same period.4
The price history through 2026 captures the conflict's market arc. Brent rose from around $72 in late February to above $118 in March when the Strait effectively closed, according to JPMorgan data reported by AOL. A U.S.-Iran peace deal that began reopening shipping lanes pulled it below $80 by late June. The breakdown of that agreement drove the rally that carried Brent back toward $91 by the end of July.5,6
Before the peace deal took hold, ICE Brent crude front-month had settled at $102.58 on Thursday (2026-05-21), down $2.44 on the day as uncertainty over U.S.-Iran negotiations weighed on sentiment, The Star reported.1
Energy Aspects offered a counterpoint to the more alarming inventory readings in late May. The firm's proprietary trucking indices and high-frequency demand data showed "limited consumer demand response to higher oil prices," analysts said in an analysis circulated to Rigzone, adding that strong backwardation and destocking were amplifying fears of demand destruction beyond what underlying demand trends justified.2
J.P. Morgan drew a parallel with the 1973 oil shock, noting that the modern energy system — including the SPR itself — was built in direct response to that earlier crisis. Asked whether current disruptions might produce a comparable structural shift, analysts said "possibly yes" but argued the direction may differ: where 1973 drove economies toward efficiency, two major wars involving large oil producers in quick succession could this time push priorities toward energy security over efficiency gains.2
OPEC+ approved 188,000 bpd of additional output at its latest meeting, continuing to unwind the voluntary cuts introduced in 2023. The producer alliance's incremental additions have helped cap the crude rally but have not reversed it.7
With the SPR at a 43-year low and U.S.-Iran peace talks having broken down, any renewed disruption to Hormuz traffic would find Washington with far less firepower than it held at the conflict's start. The next EIA inventory release will show whether the drawdown rate accelerated through the final weeks of July.6,7,4