The U.S. is entering the winter heating season with healthy propane inventories—an encouraging signal for weather-driven energy markets. According to the Energy Information Administration, stocks are at about 103 million barrels in mid-October, about 13 million barrels above the five-year average for this time of year. The EIA said propane gas-plant production was up about 5% in the first seven months of 2025 compared with the same period in 2024. Propane spot prices at Mont Belvieu averaged about $0.70 per gallon in late September, roughly…