Oil crossed $100 as two chokepoints converged. Friday's retreat kept diplomacy in the model.

Verified damage expanded the disruption set

Brent rose 8.7% and WTI 9.4% as reported pipeline damage, lower Hormuz traffic, and Houthi expansion toward Bab el-Mandeb brought two chokepoints into the same weekly risk calculation.

Damage was observed; the weekly export loss was not

The East–West pipeline was temporarily shut and Reuters reported IEA data showing Saudi August supply down 2.3 million b/d. But neither establishes the incremental 4-to-11 September export loss, which remains unquantified.

Gas split along regional physical constraints

Henry Hub fell 4.8% with U.S. storage 148 Bcf above average and record-output expectations. TTF rose 10.5% and the zero-volume JKM proxy 3.6% as seaborne LNG exposure intensified.

Geopolitics

Two chokepoints entered one risk premium

Reported infrastructure damage on Saudi Arabia's bypass route and Houthi advances at Bab el-Mandeb broadened the set of routes exposed to disruption. Attribution is less certain than the observed damage.

Shipping

Traffic stayed impaired; flow measurement remained partial

Reuters counted seven Thursday Hormuz transits versus about 125 commodity vessels per day before the war. The direction is clear, but visible tracking and the absence of a fresh weekly export estimate limit magnitude claims.

Inventories

U.S. inventories did not explain the oil surge alone

EIA reported crude down only 0.4 million barrels while total commercial petroleum inventories rose 6.3 million. Refinery utilization remained high at 97.8%, but four-week product supplied was 3.7% below a year earlier.

U.S. gas

Storage and production expectations weighed on Henry Hub

EIA reported a 40 Bcf injection to 3,254 Bcf, 148 Bcf above the five-year average. EIA's record-output outlook provides a competing domestic explanation for Henry Hub's 4.8% decline.

LNG competition

Seaborne LNG exposure widened the regional split

TTF rose 10.5% while Henry Hub fell, consistent with Europe's greater exposure to diverted Gulf LNG. The JKM proxy's zero volume sharply limits inference from its close.

Oil priced verified asset damage and a broader probability of loss.

Observed market data: November Brent settled at $104.61/bbl and October WTI at $100.05/bbl on 11 September. Against the cited 4 September closes, endpoint changes were +$8.33 (+8.7%) and +$8.57 (+9.4%), calculated as (11 Sep close − 4 Sep close) ÷ 4 Sep close × 100. Neither comparison crosses a contract roll.

Analytical inference, moderate confidence: verified pipeline damage and the expansion of conflict toward Bab el-Mandeb raised the probability assigned to further supply loss. The Friday decline after a report of possible talks shows an expectations channel. The causal hypothesis is not a claim that supply fell 8.7%–9.4%; the incremental weekly export loss remains unquantified.

Gas split without a Henry Hub or TTF roll in the window.

Observed market data: October Henry Hub fell from $2.975 to $2.831/MMBtu, −$0.144 (−4.8%). EIA reported a 40 Bcf injection for the week ending 4 September, taking working gas to 3,254 Bcf—148 Bcf above the five-year average.

October TTF rose from €71.952 to €79.520/MWh, +€7.568 (+10.5%) in the disclosed secondary close series. ICE's accessible snapshot instead showed €80.155. The JKM proxy rose from $24.025 to $24.885/MMBtu, +$0.860 (+3.6%); its zero volume and unidentified delivery month prevent a robust physical-price conclusion.

The East–West pipeline returns at reduced or uncertain capacity, Hormuz remains impaired, and oil and TTF retain a large but unstable premium.

Independent data confirm sustained crude or LNG export losses across the pipeline, Hormuz, or Bab el-Mandeb, extending the premium.

An implemented agreement, pipeline restart, and several days of higher verified traffic reduce both physical scarcity and expectations premiums.