WTI–Brent spread narrows to $7.30/bbl — the tightest since Aug 2026, directly compressing Gulf Coast–Asia arbitrage. This spread has fallen below the $7.61/bbl breakeven threshold (freight + insurance + customs under JODI-defined GC–Singapore route), confirming arbitrage motivation is materially fading. Supply: US crude imports stand at 6,709 kb/d, while domestic output hits 13,850 kb/d — self-sufficiency at 79.6%. Imports aren’t filling production gaps but servicing rigid refinery throughput of 17,400 kb/d. Import volume remains flat, signaling refineries can’t throttle back — excess feedstock flows into refined product stocks. US refined product inventories sit at 591,678 kb/d (Aug 2026), with fuel oil only 22,389 kb/d (3.8% share), far below diesel (79,896 kb/d) and gasoline (157,374 kb/d). Low fuel oil stocks reflect cracking margins favoring middle distillates — further suppressing heavy crude processing and limiting WTI’s heavy discount recovery. Demand: Domestic refined product drawdown remains weak. Mexico’s gasoline stocks = 8,737 kb/d, diesel = 4,021 kb/d — together 70.4% of its total refined products (18,032 kb/d). Canada’s gasoline = 15,840 kb/d, diesel = 15,465 kb/d — 56.2% of its total (55,448 kb/d). High gasoline/diesel stock ratios signal soft end-user demand and no incentive for refiners to run harder — eroding marginal WTI procurement elasticity. Regional focus: The US Gulf isn’t a bottleneck — it’s an inventory anchor. With US refined product stocks nearing 600 kb/d and structurally unbalanced (gasoline/diesel overweight, fuel oil critically low), any WTI rally triggers immediate refinery load-up, not import cuts or export hikes. For SNSUC transshippers: WTI at $88.61/bbl is the second-lowest in 30 days — out of panic dumping, not yet in restocking rush. USD/CAD flat at 1.4254 locks CAD-denominated cost. Real lock-in window exists — now. Scenarios & risks: Upside trigger = WTI–Brent spread widens beyond $8.00/bbl (requires Brent > $97 or WTI < $89). Downside trigger = US refined product stocks drop >15,000 kb/d MoM (current MoM volatility ±8,200 kb/d). Bias: Bullish. Reverse to neutral if WTI closes below $87.90 for two consecutive days. Actionable: ① Lock WTI physical pricing for Dec delivery today at $88.20–$88.50/bbl; ② Hedge USD/CAD exposure at 1.4250–1.4260 for Dec payments; ③ Pause vessel scheduling until Panama Canal AIS visibility rebounds to ≥12 vessels/day; ④ If JODI reports US refined product stocks < 585,000 kb/d for Sep 2026, reinitiate inquiries immediately.