Oil Drops $11 from July Peak but Inventory Buffer Nears Its Limits
Brent has retreated from July's spike, but the 8.7 million barrel daily global draw rate, the fastest on record, is depleting the cushion.
ICE Brent crude front-month traded at $87.00 a barrel on Thursday (2026-08-13), down more than $10 from the $98 it hit on July 23 (2026-07-23), when escalating attacks on tankers in the Strait of Hormuz briefly drove the benchmark to a six-week high. The retreat is attributable to the global inventory buffer, not to any improvement in supply.7
Goldman Sachs commodity analysts said in a note published the week of May 18 (2026-05-18) that global draws from inventories had been running at 8.7 million barrels daily, the highest rate ever recorded. Goldman added that stocks were "unlikely to hit minimum operational levels this summer," but flagged that "the speed of depletion and supply losses in some regions and products is concerning," describing inventories as nearing their limits.3
The numbers behind that concern are substantial. Kpler reported that the cumulative loss of oil supply in the Middle East since February 28 had reached 782 million barrels by May 8 (2026-05-08) and was on track to surpass 1 billion barrels by month's end. Saudi Arabia was losing more than 3 million barrels daily, Iraq was producing 2.88 million barrels daily below pre-conflict levels, Iran's output was down 1.69 million barrels daily, and Kuwait had suffered a decline of 1.75 million barrels daily.1
The IEA's published forecast put the full-year global supply decline at 3.9 million barrels daily. Its own estimate of the actual loss running through the disruption stood at 10.5 million barrels daily — close to three times the official projection. Demand was expected to fall by only 420,000 barrels daily. That arithmetic leaves a deficit bridged exclusively by drawing down stored crude.1
Observable global oil stocks fell 246 million barrels in the first two months of the conflict, with 129 million barrels drawn in March and another 117 million in April, equivalent to about 3.9 million barrels daily, according to OGJ data. Excluding barrels stranded in Gulf storage or blocked in transit, the accessible buffer is thinner still.5
Crude and product reserves fell a further 52 million barrels over four consecutive weeks through mid-May (2026-05-19), Fortune reported. Frederic Lasserre, head of analysis at Gunvor Group, warned at an industry conference in late April that if the Hormuz closure dragged on another month, oil markets would exhaust their stockpiles and hit what he called "tank bottoms."2
Asia has emerged as the most exposed region. OilPrice.com reported in late May (2026-05-27) that Asian inventories were the first approaching "minimum operational levels," with Europe close behind. Those minimums are not zero: they represent the volumes refiners and grid operators need to maintain throughput continuity. Once stocks fall to that floor, further draws force production cuts or rationing rather than simply higher prices.3
The conflict has deepened since those inventory warnings were issued. The United States launched airstrikes on Iran on July 7 (2026-07-07) after a series of Iranian attacks on vessels attempting to transit the strait, and separately suspended a Treasury Department license authorizing Iranian oil sales for sixty days, the Atlantic Council reported. Tanker transit through the Strait of Hormuz remained severely constrained after the strike.6
Brent crude surged past $98 a barrel on July 23 (2026-07-23), a gain of more than 4% in a single session, with NYMEX WTI front-month trading close to $89.50 a barrel the same day. Indian state oil companies bore the immediate cost, with Indian Oil Corporation down 2%, HPCL off 2.5%, and BPCL down nearly 1% that session.7
Norman Liebke, FX and commodity analyst at Commerzbank, offered a qualification: inventories are lasting longer than many initially expected, even as they continue declining. That argument has held through the summer and gives traders cover to sell rallies. But Goldman's note, while ruling out a near-term minimum-stocks event, did not put a date on when that threshold might be reached. Whether Asian inventories hold into the fourth quarter, and whether fresh Hormuz incidents can push Brent back toward July's $98 before then, are the signals the market has not yet had to test.4,3