Producer Price Index by Commodity: Inputs to Industries: Net Inputs to Mining and Oil and Gas Field Machinery Manufacturing Industry, Transportation and Warehousing Services (WPUIP33313022)

U.S. Bureau of Labor Statistics, Producer Price Index by Commodity: Inputs to Industries: Net Inputs to Mining and Oil and Gas Field Machinery Manufacturing Industry, Transportation and Warehousing Services [WPUIP33313022], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WPUIP33313022, .