France natural gas working gas stocks change
France natural gas working gas stocks change stood at -18.19 TWh (GCV) in Aug 2026, according to SDES – Service des données et études statistiques (Ministère de la Transition écologique). It is one of the indicators in the Monthly energy balances table (Value · Monthly), with a complete series running from Feb 1995 to Aug 2026. The complete series with an interactive chart, free to download.
This indicator in the Monthly energy balances table
| Indicator | 08-2026 | 07-2026 | 06-2026 | 05-2026 | 04-2026 | 03-2026 | 02-2026 | 01-2026 | 12-2025 | 11-2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Storage | |||||||||||
| Change in working gas stocks | -18.19 | -8.82 | -9.42 | -11.74 | -12.57 | -0.37 | 11.03 | 36.49 | 28.65 | 11.34 | |
| Working stocks at end of month (gas and LNG) | 97.87 | 78.75 | 69.08 | 62.21 | 49.55 | 37.58 | 37.76 | 46.89 | 83.46 | 112.97 |
Understanding france natural gas working gas stocks change
Net inventory movements inside subterranean storage reservoirs track the physical addition or withdrawal of burnable gas volumes over the monthly reporting window, measured in gross calorific value equivalents. This metric isolates the buffer fuel injected during warmer months or extracted during colder periods, separating stored reserves from pipeline flows, production output, and direct end-user off-takes. It excludes cushion gas that remains permanently trapped to maintain structural cavern pressure.
Interpreting storage inventory adjustments requires careful handling of seasonal temperature swings, as withdrawals concentrate heavily in winter while injections dominate summer. Analysts should compare identical months across sequential annual cycles rather than adjacent months to avoid misleading signals driven by weather patterns. Preliminary estimates of stock changes frequently undergo administrative revisions when underground facility operators reconcile metered injection logs with actual physical pressure readings.
Frequently asked questions
- What distinguishes working gas from cushion gas in storage facilities?
- Working gas represents the moveable volume that can be injected and withdrawn for consumption, whereas cushion gas remains permanently locked in the geological formation to maintain baseline pressure.
- Why do inventory adjustments fluctuate so sharply between adjacent months?
- Storage changes follow weather-driven heating demand, leading to heavy withdrawals in winter and substantial injections during summer months.
- Are underground storage figures subject to retroactive revisions?
- Yes, early monthly estimates update once facility operators finalize meter calibrations and reconcile pipeline injection logs.