The strong supply growth that enabled natural gas inventories to build more than average during the April-October injection season forced prices down during 2019 and is expected to limit them to an average $2.52/MMBtu in 2020, according to the Energy Information Administration (EIA).

That price forecast, included in a Short-Term Energy Outlook (STEO) released Tuesday, is down 3 cents from EIA's previous STEO.

"The Henry Hub natural gas spot price averaged $2.56/MMBtu in September, up 34 cents/MMBtu from August, which was the first monthly price increase since March," EIA said. Still, prices are expected to average $2.43/MMBtu in 4Q2019, a decrease of more than $1/MMBtu compared with 4Q2018.

EIA reported a 112 Bcf injection into storage for the week ending Sept. 27, which trimmed the deficit to the five-year average to only 18 Bcf. Total Lower 48 storage stood at 3,317 Bcf, compared with the five-year average of 3,335 Bcf and the year-ago total of 2,852 Bcf. EIA is forecasting storage levels will total 3,792 Bcf by the end of October, which would be 2% above the five-year average and 17% above October 2018 levels.

"Natural gas storage injections in the United States have outpaced the previous five-year average so far during the 2019 injection season as a result of rising natural gas production," EIA said.

Dry natural gas production is expected to remain strong, reaching an average 91.6 Bcf/d for 2019, a 10% increase from the 2018 average. However, production growth has been slowing in the United States, EIA said.

"The year-on-year increase of 7.0 Bcf/d in September is down from the year-on-year increase of 10.8 Bcf/d in January 2019. EIA expects U.S. natural gas production to slow further in the coming quarters as the lagged effect of falling prices through much of 2019 reduces natural gas-directed drilling. EIA forecasts dry natural gas production to be relatively flat from December 2019 through December 2020.”

The front-month natural gas futures contract for delivery at Henry Hub settled at $2.33/MMBtu on Oct. 3, a decrease of 3 cents from Sept. 3.

"Natural gas futures prices increased through the first half of September, reaching the highest level in five months on September 16. In September 2019, total natural gas consumption as well as natural gas consumption for power generation established new monthly records, which provided some support for futures prices. U.S. cooling degree days were 27% higher than normal in September, contributing to the increased natural gas consumption for power generation," EIA said.

The number of futures short positions between Aug. 13 and Sept. 17 that money managers reported holding for New York Mercantile Exchange gas contracts declined by 44%, and money managers held the largest short position on Aug. 13 since Mar. 8, 2016, according to EIA.

"Money managers increased their short positions through the summer concurrently with declining natural gas prices, which reached their lowest level in more than three years on Aug. 5, 2019. Prices then began increasing and rose to their highest level in five months by the middle of September. The higher prices encouraged many money managers to purchase offsetting contracts to get out of their short positions, which may have contributed to some of the increase in futures prices during this time," EIA said.