📉 EIA Natural Gas Storage Report – Week Ending July 31, 2026

Tony Zelinski
4 minutes ago
3 min read

Working gas in U.S. underground storage increased 33 Bcf for the week ending July 31, 2026, bringing total inventories to 3,117 Bcf. While this level sits 195 Bcf above the five‑year average, it remains 12 Bcf below last year — a subtle but meaningful shift that energy buyers should not ignore.

At PEM, we emphasize that headline totals rarely tell the full story. This week’s report reinforces that principle: regional flows show tightening pockets that could influence basis pricing, procurement timing, and risk exposure across the Mid‑Atlantic and Northeast.

Regional Storage Breakdown: Where the Market Is Tightening

The EIA’s regional data reveals a mixed picture — one that demands attention from commercial and industrial buyers.

East Region

678 Bcf, up 24 Bcf
3.5% above last year
5.3% above the five‑year average

The East region’s build is constructive, but the margin over last year remains modest.

For buyers in Delaware, Maryland, Pennsylvania, and New Jersey, this translates to higher sensitivity to heat-driven demand and potential firmness in regional basis.

Midwest Region

809 Bcf, up 20 Bcf
4.5% above last year
7.0% above the five‑year average

The Midwest continues to outperform other regions in year-over-year growth, offering some stability — but its influence on Mid‑Atlantic pricing remains indirect.

Mountain Region

237 Bcf, down 1 Bcf
4.4% below last year
15.0% above the five‑year average

Mountain region weakness often foreshadows volatility in western flows and can ripple into national sentiment.

Pacific Region

304 Bcf, down 3 Bcf
0.3% below last year
15.2% above the five‑year average

The Pacific draw is notable. Historically, Pacific deficits have been early indicators of winter volatility, especially when paired with LNG export demand and pipeline constraints.

South Central Region

1,090 Bcf, down 6 Bcf
Salt caverns: 292 Bcf, down 11 Bcf
Nonsalt: 798 Bcf, up 5 Bcf
5.0% below last year
3.6% above the five‑year average

The 11 Bcf salt withdrawal is the standout datapoint of the week. Salt storage is the most flexible component of the U.S. system — and draws here often signal short‑term balancing needs or shifts in production flows.

PEM Analysis: What This Means for Energy Buyers

Even with total inventories sitting comfortably within the five‑year range, regional imbalance is the real story.

1. Basis Risk Is Increasing in Select Regions

The East and Pacific regions show signs of tightening relative to last year. For Mid‑Atlantic buyers, this increases the likelihood of basis firmness, especially during heat waves or early cold snaps.

2. Salt Storage Draws Are a Warning Signal

Salt cavern withdrawals in the South Central region often precede short‑term volatility. This week’s 11 Bcf salt draw suggests that balancing needs are emerging despite healthy national totals.

3. Production Economics Are Shifting

With Henry Hub prices hovering near multi‑month lows and rig counts declining, production growth is slowing. Storage builds may remain modest through late summer, increasing the importance of timely procurement.

4. Regional Divergence Will Drive Fall Pricing

As we move into August and September, regional spreads — not national totals — will determine procurement outcomes. Buyers who rely solely on headline storage numbers risk missing early signals of tightening.

PEM Strategic Guidance

PEM advises clients across the Mid‑Atlantic and Northeast to:

Monitor regional spreads weekly, not just national totals
Lock in partial volumes during periods of price softness
Avoid overexposure to short‑term volatility windows
Use structured procurement strategies to balance risk and opportunity
Leverage PEM’s real‑time market intelligence to stay ahead of regional shifts

Our team continues to track storage behavior, production trends, weather models, and pipeline constraints to ensure clients make informed, data‑driven decisions.

Bottom Line

Total U.S. natural gas storage is stable — but stability does not equal predictability. Regional divergence, salt storage withdrawals, and shifting production economics are creating a more complex landscape heading into late summer.

PEM remains committed to delivering clear, actionable intelligence that helps organizations navigate uncertainty with confidence.

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Sources:

Natural Gas Futures