Singapore’s fuel oil inventories rose in early September even as net imports fell sharply, according to a report published on 14 September 2026.

Sources said Enterprise Singapore’s latest data showed residual fuel oil stocks had averaged 7% higher so far in September than they were across August.

The monthly-average change for residual fuel oil was an increase of 1.37 million barrels, taking the average to 20.36 million barrels, the report recorded.

Middle distillate stocks were also higher, the data showed, with an uptick of 40,000 barrels to 8.24.

reports’s headline noted the rise in inventories came despite a sharp decline in net imports for the period; the published account highlighted the contrast between falling inbound volumes and rising on‑hand stocks.

Monthly averages and the reported shifts

Enterprise Singapore’s figures were presented as changes in monthly averages between August and September so far, rather than daily or end‑month snapshots, and the report emphasised those comparative movements.

The data therefore reflects broad average positions for the month to date rather than a specific terminal or single‑day inventory balance.

What the figures show

The principal change documented was in residual fuel oil, where the 1.37 million barrel rise brought the month‑to‑date average to 20.36 million barrels. Middle distillate inventories recorded a much smaller increase, as noted above.

reports framed these movements against a backdrop of falling net imports, underlining that available supplies can increase even when inbound flows are reduced for a given month.

A concise summary of the reported monthly changes was included in the publication’s account:

  • Residual fuel oil stocks up 1.37 million bbls to 20.36 million bbls.
  • Middle distillate stocks up 40,000 bbls to 8.24.

The figures will be watched by market participants in the region, who routinely track Singapore’s stocks as an indicator of regional supply and demand balances for bunker and refinery products.

Further updates to Enterprise Singapore’s data over the remainder of September will determine whether the month‑to‑date averages translate into higher end‑month inventories or reflect short‑term timing effects between shipments and lifts.