** NOTE: The historical data above are from the Weekly Natural Gas Storage database as reported by the EIA (Energy Information Administration). AmericanOilman compares the weekly values of the current year with the same week values of the previous five years. AmericanOilman does not interpolate the values of past years so that the exact day of each week is compared with the exact day of the current year. This way, you get to see the actual value that was reported for a particular week in the past five years. The EIA uses daily linear interpolations of the working gas inventory values between each reported week (constructing an interpolated value for every day of the year). This is why the EIA "year ago" values, and the "average" values do not match with AmericanOilman’s listed values. ***Since the "Week End" report date loses approximately one day for each additional year, the chart will be corrected by shifting the "Week End" date by one week forward every five years. This is done so the the same (approximate) week of the year is compared year to year. This correction week or "Week 0" can be compared to the "before or after" week from the previous year. Years of correction, 2009, 2014, 2019.
11/19/2015NEW CHANGES TO WEEKLY NATURAL GAS STORAGE REPORT
What's Going on?
EIA is dividing the lower 48 states from three regions of storage to five regions of storage.
Due to changes in regional trends in natural gas consumption, production and storage. The original three regions were divided into two consuming regions and one producing region. The new five region has basically taken the two consuming regions and divided them into two parts.
What about the recent revisions, what is that all about?
The threshold for published revisions between working and base gas has been reduced (means more revisions) from 7 BCF to 4 BCF. All changes derive from the re-estimation of the nonsample companies, independent rounding, and previously unpublished revisions that may have fallen below the old 7 Bcf revision threshold. These revisions have been applied to all weeks since January 2010 to present by the EIA.
AmericanOilman has looked at the past year history revisions and has them identifiied by the light red color.
The last two columns on the right show the original values reported and the net change due to the revision.
The historical five year values used by AmericanOilman for reference and averaging remain the same and will be updated to the new revised values used by the EIA beginning new year 2016.