The Afternoon Brief: Energy crisis spreads as Houthis tighten Red Sea chokepoint

Saturday's energy picture has darkened substantially since Friday's inflation data. The East-West Pipeline shutdown removes 4 to 5 percent of global oil supplies from circulation just as the Houthis' seizure of Mokha and Perim in the Bab el-Mandeb Strait narrows the navigable corridor through which roughly 12 percent of global seaborne trade flows. Saudi Arabia's Energy Ministry confirmed the pipeline struck by drones launched from Iraqi territory and said its teams were assessing safety; the Kingdom stated it would not retaliate immediately but reserves the right to secure its facilities. The timing amplifies the energy shock from Friday's inflation report: with Brent crude having surpassed $105 per barrel and diesel hitting a record $6.05 a gallon on Friday, further supply constraints threaten to sustain the price pressures that surprised markets on the upside.

The inflation surprise itself remains the day's primary driver across three separate economic fronts. Core inflation rose to 2.4% annually in August, up from the prior month, driven by gasoline and fuel surges that accounted for more than one-third of the monthly price increase. Diesel climbed 24.1% in August alone, with fuel for heating and power up 52% year-over-year. That energy shock is now meeting a secondary supply disruption from geopolitics, creating conditions where the six-week threshold analysts cite for cost passthrough to consumers, the point beyond which freight contracts reprice and fuel surcharges take hold, becomes increasingly likely to be tested. Technology and communications prices posted their largest yearly increase on record, with computer software, accessories and related items climbing 25.4% annually. Real average hourly earnings for U.S. workers declined 0.1% from July to August and fell 0.3% year-over-year, meaning wage growth has not kept pace with price increases.

The Federal Reserve's decision on September 16 and 17 now faces a locked-in backdrop. Market odds for a rate hike jumped from under 70% to nearly 90% following Friday's inflation release, with odds for a follow-on hike in October rising to almost 60%. Fed Governor Christopher Waller stated that if inflation comes in hot, he would consider a rate hike, while Fed Chair Kevin Warsh said at Jackson Hole that underlying inflation trends had not "meaningfully improved" over the summer. The policy shift will immediately affect the insurance markets coming into open enrollment. ACA insurers are proposing a 15% average premium increase for 2027 coverage following a 20% increase in 2026, while employers expect to raise per-worker health benefit costs by 8.2%, the largest increase since 2003. Medicare beneficiaries face potential prescription drug premium changes after the Trump administration ended a temporary cost-control program. Open enrollment for 2027 coverage begins in October.

International developments Saturday added further complexity to the geopolitical calculus driving energy prices. BRICS leaders convened in New Delhi with the bloc seeking to reshape global governance and reduce Western financial dominance while managing internal divisions over contested conflicts. In May, BRICS foreign ministers failed to agree on a joint statement over the Iran war, forcing India to issue only a chair's summary instead. Whether the September 12 summit produces a unified joint declaration or repeats that impasse will signal whether the bloc can function as a negotiated coalition or remains a loose forum where competing strategic interests prevent consensus. Israeli military operations continued in southern Lebanon despite the ceasefire framework reached in June, with the military announcing destruction of a large underground Hezbollah complex using over 1,000 tonnes of explosives that registered as a magnitude-4.1 earthquake. Israel occupies roughly 5% of Lebanese territory and continues major military operations against Hezbollah infrastructure even as the framework theoretically limits such operations. Trump, visiting Ireland on September 12, told reporters he would love to see Ireland unified and called it a "fantastic thing," breaking with decades of U.S. neutral stance on Irish reunification enshrined in the Good Friday Agreement.

Other developments Saturday included continued rescue operations at the Philippine ferry MV June Aster, where rescuers boarded the charred vessel more than 40 hours after the fire began; five people are confirmed dead, 43 have been rescued, and 84 remain missing. French authorities continued investigating whether a rail fragment found on tracks caused a train derailment in Normandy that injured 44 people on Friday evening. The CDC's largest-ever cyclosporiasis outbreak was declared officially over after sickening 12,883 people across 21 states and killing two people, though five cyclosporiasis outbreaks remain under FDA investigation. The CIA released 71 declassified presidential daily briefs on the 25th anniversary of 9/11, documenting intelligence on bin Laden and al-Qaeda from February 1998 through September 12, 2001, with a September 1998 briefing stating bin Laden's "preferred option is to strike the US on its own soil in Washington" and noting al-Qaeda "may fly an explosive-packed airplane into a US city." The nation commemorated the 25th anniversary of the attacks with ceremonies that exposed fractures in American life, with officials noting that the unity felt on September 12, 2001, has splintered into deep political and cultural polarization.