Natural Gas +85 Bcf vs +79 Est — Salt Rebuilds 14 Bcf, Shortfall Moves North
Fundamentals · 2026-10-08
Working gas in storage rose 85 Bcf in the week to 2 October against a 79 Bcf consensus, after +64 the week before, unrevised. That is 6 Bcf above the survey but 11 Bcf below the five-year average build of +96, the fifth straight week under the seasonal norm and the smallest shortfall of the run, and 8 Bcf above the year-ago +77. Total stocks 3,500 Bcf: 130 Bcf (-3.6%) below last year, from 138, and 68 Bcf (+2.0%) above the five-year average, from 79. South Central salt injected 14 Bcf after three straight draws, to 227 Bcf, 23.1% below a year ago and 14.0% below its five-year average, from 15.5%. South Central built 28 Bcf against a normal 27; East (+22 vs 28) and Midwest (+26 vs 31) carried the shortfall. Standard error on the net change 0.8 Bcf. Next release 15 October.
What It Changes
- A bearish surprise against consensus, still short of normal. 85 against 79 is a 6 Bcf miss to the loose side. But the five-year average build for this week was 96, so stocks still lost ground against the norm for a fifth week. The surplus is down to 68 Bcf, from 118 three weeks ago.
- The salt story reversed. South Central salt caverns drew for three weeks during injection season. This week they refilled 14 Bcf, slightly more than their normal 12. The fast-cycling storage that was the main tightness signal is still 14.0% below normal, but it is now moving the right way.
- The shortfall moved north. South Central matched its normal build. The East and Midwest were 11 Bcf short between them, which is almost all of the national gap. Those regions are still above their five-year averages, so this is a slower refill where stocks are already comfortable.
- The next two reports carry a hurricane. The Open noted Hurricane Isaias has shut in Gulf of Mexico output ahead of a landfall Friday night or Saturday. This report covers the week to 2 October and doesn't include it.
Impact
- Natural Gas (NG) — Slight bearish — a build 6 Bcf above consensus and salt refilling ease the tightness argument for the day, even with stocks still behind the five-year pace.
- November NG (Yahoo Finance 1-minute bars, delayed) was $3.217 at the 10:29 close, traded $3.206-$3.220 in the release minute on its heaviest volume to that point, and closed it at $3.208. After a bounce to $3.217 at 10:32 it slid to $3.178 by 10:37, below Wednesday's $3.203 close on Yahoo. The market traded it as a loose print.
- The level is a cushion. At 3,500 Bcf, stocks are 68 Bcf above the five-year average and EIA places them "within the five-year historical range". The tightness is in the trajectory, not the total.
- End-of-season arithmetic. Four weeks of injection remain to 30 October. At this week's 85 Bcf pace, stocks end near 3,840 Bcf; at the three-week average of about 67 Bcf, near 3,770. Last week's equivalents were 3,735 and 3,685.
- USD — Neutral — gas storage has no dollar transmission.
- US Indices (ES / NQ / YM / RTY) — Neutral — the exposure runs through utilities and gas-intensive industry, not the index.
Inside The Number
Working gas in underground storage in the Lower 48 rose 85 Bcf in the week ending Friday 2 October, taking total stocks to 3,500 Bcf. Consensus was +79 Bcf (TradingView and The Open), and the prior week's +64 Bcf was unrevised: last week's 3,415 is this week's starting point. EIA's standard error on the national net change is 0.8 Bcf, so the 6 Bcf miss is real, not sampling noise.
The seasonal comparison. EIA's five-year average stock moved from 3,336 Bcf to 3,432 Bcf between the two report dates, which puts the five-year average build for this week at +96 Bcf. Year-ago stocks moved from 3,553 to 3,630, a +77 Bcf build. This week's 85 is 11 Bcf below the five-year norm and 8 above last year. The run of shortfalls against the five-year build is now 12, 29, 23, 16 and 11 Bcf over five weeks, narrowing for three weeks in a row.
Both level comparisons narrowed, in opposite directions. Stocks are 68 Bcf above the five-year average (3,432 Bcf), a 2.0% surplus that narrowed by 11 from 79. They are 130 Bcf below a year ago (3,630 Bcf), a 3.6% deficit that narrowed by 8 from 138. Against the five-year norm the market is tightening; against last year it is loosening. The same split showed up last week.
The regional split shows where the shortfall moved. EIA publishes each region's year-ago and five-year stock in Bcf, so differencing them against last week's report gives each region's normal build for this week:
- East built 22 Bcf against a five-year normal of 28 and a year-ago 28.
- Midwest built 26 against 31, year-ago 29.
- Mountain built 5 against 6, and Pacific 4 against 3.
- South Central built 28 against 27, and inside it salt injected 14 against a normal 12. Nonsalt built 15, exactly normal.
Last week, South Central was 8 Bcf short and the four other regions 10 short. This week, South Central was 1 Bcf ahead and the other four were 11 short, almost all of it in the East and Midwest. Those two regions hold 1,872 Bcf, both above their five-year averages and above last year, so the shortfall has moved to where the cushion is largest.
South Central salt turned after three weeks of draws. It fell 5, 5 and 4 Bcf in the weeks to 11, 18 and 25 September, and this week rose 14 Bcf to 227 Bcf. That leaves it 23.1% below a year ago (295 Bcf) and 14.0% below its five-year average (264 Bcf), from 27.3% and 15.5% last week. The standard error on the salt net change is 0.4 Bcf, so the injection is measured, not noise. EIA reports storage, not end use, so the release doesn't say why salt switched. Last week's brief put the pull on salt down to the Gulf Coast LNG export terminals next to it.
Why salt still matters. Salt caverns can be filled and emptied several times a season, which makes them the system's quick-response capacity for cold snaps. Nonsalt reservoirs hold more and cycle slowly. At 14.0% below normal, salt is still the tightest part of the system going into winter, even after this week's refill.
The rest of the country is comfortable against its own history. East holds 862 Bcf, 3.7% above its five-year average; Midwest 1,010 Bcf, 2.3% above; Mountain 253 Bcf, 5.9% above; Pacific 299 Bcf, 9.1% above. East and Midwest are also above last year; Mountain and Pacific are below. South Central, at 1,076 Bcf, is the only region below its five-year average, at -2.3% (from -2.4%), and it holds about 31% of all working gas.
The Internals
The headline against every benchmark:
Comparison · Value · Gap · Read
This week's build · +85 Bcf · n/a · The print
Consensus · +79 Bcf · +6 Bcf · Larger build than expected
Prior week · +64 Bcf · +21 Bcf · Larger build, prior unrevised
Five-year average build, this week · +96 Bcf · -11 Bcf · Fifth straight week below normal
Same week a year ago · +77 Bcf · +8 Bcf · Above last year
Standard error on the net change · 0.8 Bcf · n/a · A precise print
The shortfall against the five-year build, five weeks:
Week ending · Build · Five-year average build · Shortfall
4 September · +40 Bcf · About +52 Bcf · About 12 Bcf
11 September · +44 Bcf · +73 Bcf · 29 Bcf
18 September · +53 Bcf · +76 Bcf · 23 Bcf
25 September · +64 Bcf · +80 Bcf · 16 Bcf
2 October · +85 Bcf · +96 Bcf · 11 Bcf
Stock levels:
Measure · 2 October · 25 September · Change
Total working gas · 3,500 Bcf · 3,415 Bcf · +85
Year-ago stocks · 3,630 Bcf · 3,553 Bcf · +77
Deficit to last year · -130 Bcf, -3.6% · -138 Bcf, -3.9% · Narrowed 8
Five-year average stocks · 3,432 Bcf · 3,336 Bcf · +96
Surplus to five-year average · +68 Bcf, +2.0% · +79 Bcf, +2.4% · Narrowed 11
Regional detail, Bcf:
Region · 2 Oct · 25 Sep · Net · Year ago · vs year ago · Five-year average · vs five-year
East · 862 · 840 · +22 · 856 · +0.7% · 831 · +3.7%
Midwest · 1,010 · 984 · +26 · 997 · +1.3% · 987 · +2.3%
Mountain · 253 · 248 · +5 · 274 · -7.7% · 239 · +5.9%
Pacific · 299 · 295 · +4 · 304 · -1.6% · 274 · +9.1%
South Central · 1,076 · 1,048 · +28 · 1,199 · -10.3% · 1,101 · -2.3%
South Central salt · 227 · 213 · +14 · 295 · -23.1% · 264 · -14.0%
South Central nonsalt · 849 · 834 · +15 · 904 · -6.1% · 837 · +1.4%
Total Lower 48 · 3,500 · 3,415 · +85 · 3,630 · -3.6% · 3,432 · +2.0%
This week's build against the normal build, by region, derived from EIA's published year-ago and five-year stocks:
Region · Actual build · Five-year build · Gap · Year-ago build
East · +22 · +28 · -6 · +28
Midwest · +26 · +31 · -5 · +29
Mountain · +5 · +6 · -1 · +5
Pacific · +4 · +3 · +1 · +2
South Central · +28 · +27 · +1 · +12
South Central salt · +14 · +12 · +2 · +2
South Central nonsalt · +15 · +15 · 0 · +11
Total Lower 48 · +85 · +96 · -11 · +77
South Central salt, four weeks:
Week ending · Stock · Net · vs year ago · vs five-year
11 September · 222 Bcf · -5 · -24.0% · -8.3%
18 September · 217 Bcf · -5 · -27.2% · -12.5%
25 September · 213 Bcf · -4 · -27.3% · -15.5%
2 October · 227 Bcf · +14 · -23.1% · -14.0%
Where the injection season ends, on flat paces over the four remaining weeks to 30 October:
Weekly pace · Basis · End-October stocks
+85 Bcf · This week · About 3,840 Bcf
+67 Bcf · Three-week average · About 3,770 Bcf
+57 Bcf · Five-week average · About 3,730 Bcf
Sampling variability, this week:
Region · Coefficient of variation for stocks · Standard error on net change
East · 0.6% · 0.3 Bcf
Midwest · 0.9% · 0.4 Bcf
Mountain · 3.1% · 0.2 Bcf
Pacific · 0.0% · 0.0 Bcf
South Central · 0.8% · 0.6 Bcf
South Central salt · 1.1% · 0.4 Bcf
South Central nonsalt · 1.0% · 0.4 Bcf
Total Lower 48 · 0.4% · 0.8 Bcf
Against This Morning's Open
- The Open carried EIA gas storage at +79 Bcf, tagged NG. It printed +85, a 6 Bcf larger build.
- The Open's lead was Hurricane Isaias shutting in Gulf of Mexico output ahead of landfall. This report predates that, so the storm's effect on gas, if any, shows up from the 15 October report onward.
What This Sets Up
- Next EIA storage report — Thursday, 15 October 2026, 10:30 ET, for the week ending 9 October.
- The test is whether salt keeps refilling. Another injection would confirm that the September draws were temporary; a return to draws would put the pull from LNG exports back at the centre of the story.
- The five-year gap. The shortfall has narrowed from 29 to 11 Bcf over three weeks. A build at or above the five-year norm next week would end the run.
- Hurricane Isaias. Production shut-ins reduce supply, while lost power and cooler weather after landfall reduce demand. Which effect is larger decides the sign of the storm's impact on the next two reports.
What Is This?
- What it is: The Energy Information Administration's Weekly Natural Gas Storage Report, released Thursdays at 10:30 ET. It estimates working gas held in underground storage in the Lower 48, by region, for the week ending the previous Friday, from a survey of storage operators. South Central is split into salt caverns and nonsalt reservoirs.
- Why it matters: Storage is the balance between production, LNG exports and domestic use. Injection season runs from April to October, and the level at the end of October sets how much cushion the market has going into winter heating demand.
- How to read it: Compare the net change with consensus, then with the five-year average build and the year-ago build for the same week. A build larger than expected is bearish for NG, smaller is bullish. Read the regions, especially South Central salt, which can be filled and emptied quickly and is the first place tightness shows up. Check the standard error before treating a small miss as meaningful.
Want the full explainer? Economic News Events, Explained breaks down this release and every other one we cover, in plain English.
_For informational purposes only. Not investment advice._