Weekly statistics released by the Petroleum Association of Japan (PAJ) on 11 November show commercial crude stocks at 10.083 million kL in the week ended 7 November, down 285,761 kL from 10.369 million kL the previous week — a draw of roughly 2.8%. It is the second one-way swing above 250,000 kL since late October: stocks fell 962,000 kL in the week of 24 October, rebuilt 36,000 kL the following week, and have now drawn again. The amplitude of late-autumn stock swings is visibly larger than seasonal norms, reflecting refiners re-balancing between arrival schedules and run plans.

Run rates slipped in parallel. Utilization on operable capacity (BPSD) eased 0.5 percentage point to 83.7%, while utilization on design capacity (BPCD) fell 3.3 points to 73.8% from 77.1%. The much larger drop in BPCD than BPSD indicates some operable CDUs are being throttled rather than idled for maintenance — refiners are actively easing off the throttle on margin and inventory considerations, not being forced offline.

A structural change accompanied this report: PAJ suspended its weekly stock breakdowns for gasoline, jet fuel, kerosene and gasoil, citing changes in petroleum product supply structure. For anyone tracking Japan's product balance, high-frequency visibility has narrowed; the market must now lean on METI monthly statistics and JODI submissions, with a lag of roughly six weeks — a new information cost. With kerosene winter demand ramping, reduced transparency on product stocks is itself worth pricing into risk premia.

Implications for SNSUC. First, softer runs combined with a fast crude drawdown point to a reopening restocking inquiry window for December–January crude and fuel oil stems into Japan. Second, with weekly product detail suspended, demand for third-party high-frequency data rises, lifting the relative value of our data offering on the Japan board. Third, our accessible slate remains LNG/LPG, base oils SN150/SN500, paraffin wax and lubricants; hazardous chemicals are strictly excluded, and all Japan-facing business stays within this perimeter. Risk note: this is a market observation based on public data and does not constitute investment advice.