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Line 1 - Producer Price Index by Commodity: All Commodities, Nov 1982=100
Line 1
(a) Producer Price Index by Commodity: All Commodities, Index 1982=100, Not Seasonally Adjusted (PPIACO)

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    For example, invert an exchange rate by using formula 1/a, where “a” refers to the first FRED data series added to this line. Or calculate the spread between 2 interest rates, a and b, by using the formula a - b.

    Use the assigned data series variables (a, b, c, etc.) together with operators (+, -, *, /, ^, etc.), parentheses and constants (1, 1.5, 2, etc.) to create your own formula (e.g., 1/a, a-b, (a+b)/2, (a/(a+b+c))*100). As noted above, you may add other data series to this line before entering a formula.

    Finally, you can change the units of your new series.

    Select a date that will equal 100 for your custom index:
        Enter date as YYYY-MM-DD

    Line 1 - Producer Price Index by Commodity: All Commodities, Nov 1982=100
    Line 2
    (a) Spot Crude Oil Price: West Texas Intermediate (WTI), Dollars per Barrel, Not Seasonally Adjusted (WTISPLC)
    This series was created by the Federal Reserve Bank of St. Louis to expand the history of the monthly West Texas Intermediate oil price series in FRED. We simply combined these two FRED series: https://fred.stlouisfed.org/series/OILPRICE and https://fred.stlouisfed.org/series/MCOILWTICO. From January 1946 through July 2013, the series used is OILPRICE. From August 2013 to present, the series used is MCOILWTICO.

    Select a date that will equal 100 for your custom index:
      Enter date as YYYY-MM-DD
    to

    Write a custom formula to transform one or more series or combine two or more series.

    You can begin by adding a series to combine with your existing series.

    Type keywords to search for data

      Now create a custom formula to combine or transform the series.

      For example, invert an exchange rate by using formula 1/a, where “a” refers to the first FRED data series added to this line. Or calculate the spread between 2 interest rates, a and b, by using the formula a - b.

      Use the assigned data series variables (a, b, c, etc.) together with operators (+, -, *, /, ^, etc.), parentheses and constants (1, 1.5, 2, etc.) to create your own formula (e.g., 1/a, a-b, (a+b)/2, (a/(a+b+c))*100). As noted above, you may add other data series to this line before entering a formula.

      Finally, you can change the units of your new series.

      Select a date that will equal 100 for your custom index:
          Enter date as YYYY-MM-DD

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      Line 1
      Producer Price Index by Commodity: All Commodities, Nov 1982=100
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      Line 2
      Spot Crude Oil Price: West Texas Intermediate (WTI), Nov 1982=100
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      Notes

      Producer Price Index by Commodity: All Commodities  (PPIACO)

      Source: U.S. Bureau of Labor Statistics  

      Release: Producer Price Index  

      Units:  Index 1982=100, Not Seasonally Adjusted

      Frequency:  Monthly

      Suggested Citation:

      U.S. Bureau of Labor Statistics, Producer Price Index by Commodity: All Commodities [PPIACO], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/PPIACO, April 3, 2025.

      Spot Crude Oil Price: West Texas Intermediate (WTI)  (WTISPLC)

      Source: Federal Reserve Bank of St. Louis  

      Release: Spliced Oil Price

      Units:  Dollars per Barrel, Not Seasonally Adjusted

      Frequency:  Monthly

      Notes:

      This series was created by the Federal Reserve Bank of St. Louis to expand the history of the monthly West Texas Intermediate oil price series in FRED. We simply combined these two FRED series: https://fred.stlouisfed.org/series/OILPRICE and https://fred.stlouisfed.org/series/MCOILWTICO. From January 1946 through July 2013, the series used is OILPRICE. From August 2013 to present, the series used is MCOILWTICO.

      Suggested Citation:

      Federal Reserve Bank of St. Louis, Spot Crude Oil Price: West Texas Intermediate (WTI) [WTISPLC], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WTISPLC, April 3, 2025.

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      Producer Price Index

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      Commodities Producer Price Index Inflation Price Index Indexes Price Bureau of Labor Statistics Monthly Nation Public Domain: Citation Requested Not Seasonally Adjusted United States of America West Texas Intermediate Crude Oil St. Louis Fed Copyrighted: Citation Required

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