Weekly Natural Gas Storage Report

Working gas in underground storage from EIA's Weekly Natural Gas Storage Report, by storage region (East, Midwest, Mountain, Pacific, South Central salt and nonsalt) and the Lower 48 total, in Bcf, from 2010.

One row per
EIA storage series (region x measure) x report week x vintage
Weekly (week ending Friday, released Thursday) cadence
Evidence
Reference data
Stable context used to interpret other datasets
Time basis
Date-labelled records
UTC · event_time

Overview

event_time is the Friday that ends the report week. Net change is the difference between consecutive weeks of the same series. One row per EIA series per period, long format: series is the EIA v2 series id, which already encodes the area and the measure, and duoarea / area_name, product_name and process_name spell it out. value is in units, which differ by series, so never add values from series with different units. Every daily pull is kept as its own source_time vintage while EIA can still restate the period: read the newest source_time per (event_time, series), never several. Published by the U.S. EIA.

Query contract
Preserve one canonical row per (event_time, series, source_time) before aggregating.
Analysis rules
Select the newest source_time per (event_time, series) before reading or aggregating; every vintage of a restated period is kept.Never add values across series with different units.
Interpretation
Working gas is an EIA estimate from a sample survey; regions are EIA storage regions, not electricity markets.Published by the U.S. EIA; attribute it to EIA whenever it is reported.

Access

Download
Query it in SQL, download it, or read it with an API key. Download data
MCP
Connect an MCP client and load the contract with describe_data before calling query_data.ERCOT MCPCAISO MCPNYISO MCPPJM MCPSPP MCPMISO MCPISO-NE MCPBPA MCPAPI reference
HTTP endpoint
POST /api/v1/datasets/eia_ng_storage_weekly/query
Full history
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Schema

14 columns
ColumnType
event_timeDateTime64(6, 'UTC')
seriesLowCardinality(String)
source_timeDateTime64(6, 'UTC')
periodNullable(String)
duoareaNullable(String)
area_nameNullable(String)
productNullable(String)
product_nameNullable(String)
processNullable(String)
process_nameNullable(String)
series_descriptionNullable(String)
valueNullable(Float64)
unitsNullable(String)
ingested_atDateTime64(6, 'UTC')

Sample data

event_timeseriessource_timeperiodduoareaarea_nameproductproduct_nameprocessprocess_nameseries_descriptionvalueunitsingested_at
2026-10-23 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-30 12:45:09.2572242026-10-23R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3724BCF2026-10-30 12:45:10.194566
2026-10-23 00:00:00.000000NW2_EPG0_SWO_R35_BCF2026-10-30 12:45:09.2572242026-10-23R35NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet)297BCF2026-10-30 12:45:10.194566
2026-10-23 00:00:00.000000NW2_EPG0_SWO_R34_BCF2026-10-30 12:45:09.2572242026-10-23R34NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Mountain Region Natural Gas Working Underground Storage (Billion Cubic Feet)258BCF2026-10-30 12:45:10.194566
2026-10-23 00:00:00.000000NW2_EPG0_SWO_R33_BCF2026-10-30 12:45:09.2572242026-10-23R33NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)1168BCF2026-10-30 12:45:10.194566
2026-10-23 00:00:00.000000NW2_EPG0_SWO_R32_BCF2026-10-30 12:45:09.2572242026-10-23R32NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Midwest Region Natural Gas Working Underground Storage (Billion Cubic Feet)1088BCF2026-10-30 12:45:10.194566
2026-10-23 00:00:00.000000NW2_EPG0_SWO_R31_BCF2026-10-30 12:45:09.2572242026-10-23R31NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly East Region Natural Gas Working Underground Storage (Billion Cubic Feet)913BCF2026-10-30 12:45:10.194566
2026-10-23 00:00:00.000000NW2_EPG0_SSO_R33_BCF2026-10-30 12:45:09.2572242026-10-23R33NAEPG0Natural GasSSOSalt Underground Storage - Working GasWeekly Salt Region Natural Gas Working Underground Storage (Billion Cubic Feet)274BCF2026-10-30 12:45:10.194566
2026-10-23 00:00:00.000000NW2_EPG0_SNO_R33_BCF2026-10-30 12:45:09.2572242026-10-23R33NAEPG0Natural GasSNONon-Salt Underground Storage - Working GasWeekly Nonsalt Region Natural Gas Working Underground Storage (Billion Cubic Feet)894BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-30 12:45:09.2572242026-10-16R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3644BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R35_BCF2026-10-30 12:45:09.2572242026-10-16R35NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet)297BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R34_BCF2026-10-30 12:45:09.2572242026-10-16R34NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Mountain Region Natural Gas Working Underground Storage (Billion Cubic Feet)257BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R33_BCF2026-10-30 12:45:09.2572242026-10-16R33NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)1125BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R32_BCF2026-10-30 12:45:09.2572242026-10-16R32NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Midwest Region Natural Gas Working Underground Storage (Billion Cubic Feet)1065BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R31_BCF2026-10-30 12:45:09.2572242026-10-16R31NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly East Region Natural Gas Working Underground Storage (Billion Cubic Feet)900BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SSO_R33_BCF2026-10-30 12:45:09.2572242026-10-16R33NAEPG0Natural GasSSOSalt Underground Storage - Working GasWeekly Salt Region Natural Gas Working Underground Storage (Billion Cubic Feet)251BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SNO_R33_BCF2026-10-30 12:45:09.2572242026-10-16R33NAEPG0Natural GasSNONon-Salt Underground Storage - Working GasWeekly Nonsalt Region Natural Gas Working Underground Storage (Billion Cubic Feet)875BCF2026-10-30 12:45:10.194566
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-29 12:45:06.8116672026-10-16R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3644BCF2026-10-29 12:45:07.904870
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-28 12:45:08.2947282026-10-16R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3644BCF2026-10-28 12:45:09.441779
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-27 12:45:07.5605552026-10-16R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3644BCF2026-10-27 12:45:08.454960
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-26 12:45:05.3555212026-10-16R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3644BCF2026-10-26 12:45:06.483808
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-25 12:45:10.4074752026-10-16R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3644BCF2026-10-25 12:45:11.601458
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-24 12:45:05.7270782026-10-16R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3644BCF2026-10-24 12:45:06.577826
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R48_BCF2026-10-23 12:45:05.4899882026-10-16R48NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)3644BCF2026-10-23 12:45:06.190427
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R35_BCF2026-10-29 12:45:06.8116672026-10-16R35NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet)297BCF2026-10-29 12:45:07.904870
2026-10-16 00:00:00.000000NW2_EPG0_SWO_R35_BCF2026-10-28 12:45:08.2947282026-10-16R35NAEPG0Natural GasSWOUnderground Storage - Working GasWeekly Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet)297BCF2026-10-28 12:45:09.441779

Coverage

Complete
14.3%
Gap days
5,262
Days with data
878
Show coverage history
Coverage: 14.3%Days with data: 878Gaps: 5,262
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