XML 108 R21.htm IDEA: XBRL DOCUMENT v3.20.4
Inventories
12 Months Ended
Dec. 31, 2020
Inventories [abstract]  
Disclosure of inventories [text block]

14 Inventories

At 31 December
(in USD million)20202019
Crude oil2,0222,137
Petroleum products443572
Natural gas229277
Other390377
Inventories3,0843,363

Other inventory consists mainly of drilling and well equipment.

The write-down of inventories from cost to net realisable value amounted to an expense of USD 58 million and USD 147 million in 2020 and 2019, respectively.