Nat-Gas Prices Retreat as US Weather Forecasts Cool

September Nymex natural gas prices fell 1.20% on Monday, reaching a 3.5-month low, primarily driven by forecasts for cooler US temperatures reducing electricity demand for air conditioning and near-record domestic production. Despite a smaller-than-expected inventory build reported by the EIA, ample US natural gas supplies, indicated by levels 5.9% above the 5-year seasonal average, continue to exert downward pressure, overshadowing some positive demand signals.

Analysis

September Nymex natural gas futures have declined to a 3.5-month low, closing down 1.20% as near-term bearish catalysts overwhelm strong underlying demand fundamentals. The primary driver for the price drop is a forecast for cooler temperatures across the eastern US, which is expected to curb gas demand from electricity providers for air conditioning. This is compounded by a robust supply picture, with Lower-48 dry gas production running at 109.4 bcf/day, a 6.3% year-over-year increase, and the number of active drilling rigs remaining near a two-year high. While several data points signal market tightness—including a smaller-than-expected weekly inventory build of +7 bcf against a +29 bcf five-year average and strong year-over-year demand growth of 8.3%—these have been insufficient to counter the supply-side pressure. Critically, total US gas inventories, despite being down 4.3% year-over-year, are still 5.9% above their five-year seasonal average, indicating adequate supply levels that provide a buffer against short-term demand spikes.

Key Decisions for Investors

• Given the prevailing downward momentum driven by cooling weather forecasts and near-record production, investors should exercise caution with long positions in the near term and monitor weather patterns as a primary price catalyst.
• The market is defined by a conflict between strong supply and strong demand; therefore, closely track the relationship between production growth (+6.3% y/y) and demand growth (+8.3% y/y) as a key indicator of future price direction.
• Consider the European gas storage deficit, currently 72% full versus a 79% five-year average, and rising US LNG export flows (+7.1% w/w) as potential bullish catalysts that could tighten the market if international demand accelerates.