@cgendron
Thank you for reaching out ot us.
First, you need to know RICs that can provide this information.
For example, I found that DST-STK-T-EIA represents "EIA STATISTICS US Total Distillate Fuel Oil Stocks Weekly Contract". Then, I can use this RIC with the Refinitiv Data Library for Python to retreive weekly historical data.
rd.get_history(universe="DST-STK-T-EIA",start="2019-01-01",end="2023-11-06", interval='1W')
The output is:
You can contact the Eikon or Refinitiv Workspace support team directly via MyRefinitiv to get those RICs.
Chris G.