International proved crude oil and natural gas reserves held by 187 publicly traded global exploration and production (E&P) companies declined by 5.6 billion barrels of oil equivalent (BOE) in 2022, or 2%, according to data from the companies’ annual financial reports. In 2020, proved reserves held by these public companies had dropped by 9% due primarily to the economic effects of the COVID-19 pandemic, but in 2021, proved reserves increased by 9% from 2020.