As analysts highlighted evidence of potential regional storage constraints heading into the end of the injection season, natural gas futures extended the previous session’s losses in early trading Friday. The September Nymex contract was down 4.4 cents to $2.308/MMBtu at around 8:40 a.m. ET.

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The Energy Information Administration (EIA) on Thursday reported a 43 Bcf injection into storage inventories for the week ending Aug. 14, lifting total working gas in storage to 3,375 Bcf. That is 595 Bcf higher than year-ago levels and 442 Bcf above the five-year average of 2,933 Bcf.

Analysts at Tudor, Pickering, Holt & Co. (TPH) said they’re keeping a close eye on regional stockpiles following some “interesting movements” in the latest EIA report.

“In the South Central...