Charts and Tables of Petroleum Inventories, Prices and Implied Demand.
Updated October 7, 2026
The following data and charts are an attempt to replace the discontinued "This Week in Petroleum" report that was produced by the U.S. Energy Information Administration (EIA) until November 2025. All of the data in this document is still available on the EIA website but not in a single document; this data is now spread across many files and figures. I did not duplicate the report as it was, but as was useful for me. I also added some long range trends that show the rise of shale oil and the US becoming a net exporter of Petroleum and Petroleum Products. I added trend of the SPR inventory since 1982 that show how we have emptied the SPR. Long term Diesel and Gasoline demand trends that show gasoline and diesel demand peaked in 2007, declined slightly, and has been basically flat since then.
This data was reproduced using the new version of the EIA API. The EIA releases the information Wednesday morning but the API data does not seem to update until after 2:00 PM.
The 5-year range bands on the charts that were part of EIA "This Week in Petroleum" report were distorted because of abnormal demand patterns from the COVID-19 epidemic, the Ukrainian War, and the current Iranian Conflict. I am currently using a 10 year band. The charts are interactive and created with the Plotly Python package. The Plotly toolbar functions are described here Plotly Toolbar Help.
The report was generated via a Jupyter Notebook that is then exported to HTML. I knew the data was available via the EIA API and Jupyter Notebook seemed like a reasonable way to build the report. While I know some Python, Google Gemini, Anthropic Claude and other LLMs were used for most of the coding. This was definitely a vibe coding exercise.
The website name SuperTWIP comes from what Gemini named the Jupyter Notebook. I have created a Substack to announce when the report has been updated. It can be found here: This Week In Petroleum.
Weekly U.S. retail regular gasoline price compared to the prior year (52 weeks prior) and trailing 1-year weekly price trends across all 5 PADDs.
Weekly U.S. on-highway diesel retail price compared to the prior year (52 weeks prior) and trailing 1-year weekly price trends across all 5 PADDs.
Interactive Charts showing a 10-year seasonal range envelope graphs across all TWIP commodities.