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Last update: May 14, 2020, 4:45 EDT
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Natural Gas Inventory Chart shows the level of working gas in the underground storage (inventory) compared with five-year average, maximum and minimum stocks. It also displays our long-term storage forecast (10 weeks / 11 EIA reports - light orange curve). Every Friday, the forecast is extended by one week.

Historical data are available from January 8, 2010.

The chart is interactive. You can click on any series in the legend to hide/show the data. You can also click on the chart and drag out a specific area you wish to zoom. Alternatively, use calendar filter to select a specific data range. Also, to print or download the chart, click on the "menu" button in the top right corner of the chart.

Update: every weekday + Sunday afternoon.

Source: U.S. Energy Information Administration, Bluegold Research estimates and calculations


Rapid variations in demand coupled with slowly varying, non-seasonal production results in huge imbalances (between supply and demand) on short time scales. This mismatch is resolved by natural gas storage

Working inventory should be thought of as the amount of natural gas in storage that is readily available for withdrawal. The key feature of the inventory level is the seasonal response to the supply/demand mismatch, with injection during the summer months in anticipation of withdrawal during the winter.  

Inventory level impacts forward prices and conversely, making the "storage number" one of the most discussed statistics on natural gas trading desks. The important question is how current levels of inventory compare to where one would expect them to be at a particular point of the injection / withdrawal cycle. The most relevant metric is, therefore, where inventory is versus "normal" levels at a particular time of the year.  

As a rule, the bulls want to see small injections and large draws (relative to historical norm), so that the total amount of natural gas in storage remains below 5-year average and trends down. On the contrary, the bears want to see large injections and small draws (relative to historical norm), so that the total amount of natural gas is storage remains above 5-year average and trends up.

Related charts: Storage Flows; Storage Level Deviations

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