19 – Inventories Index161718192021222324252627 (XLSX:) Download Inventories In EUR mn 2023 2022 Crude oil 585 824 Natural gas 367 936 Other raw materials 639 677 Work in progress 219 231 Finished petroleum products 795 1,112 Other finished products1 923 1,053 Inventories 3,529 4,834 1 The balance of other finished products is mainly attributable to the finished products of the Borealis Group, i.e., polyolefins and base chemicals. (XLSX:) Download Purchases (net of inventory variation) In EUR mn 2023 2022 Costs of goods and materials 20,600 34,811 Inventory changes1 3,550 4,047 Write-downs to net realizable value and write-offs of inventories 479 466 Reversal of inventory write-downs –407 –25 Purchases (net of inventory variation) 24,222 39,298 1 Mainly related to petrochemical products The lines “Write-downs to net realizable value and write-offs of inventories” in 2022 and 2023 and “Reversal of inventory write-downs” in 2023 were mainly related to gas in storage. 18 – Equity-accounted investments20 – Financial assets