[...] efforts: the estimation of oil and gas reserves, including reserves used in the calculation of depreciation, depletion and amortisation; the recoverable amounts of exploration and production assets, and investments in joint ventures and associates in the Upstream and Integrated Gas (IG) segments; [...]
Shell subsidiaries’ proved reserves of crude oil, natural gas liquids (NGLs), synthetic crude oil and bitumen at the end of the year; their share of the proved reserves of joint ventures and associates at the end of the year; and the changes in such reserves during the year are set out below. [...]
Shell subsidiaries’ proved reserves of natural gas at the end of the year, their share of the proved reserves of joint ventures and associates at the end of the year, and the changes in such reserves during the year are set out below. Significant changes in these proved reserves are discussed [...]
The SEC Form 20-F requires the disclosure of a standardised measure of discounted future net cash flows, relating to proved reserves quantities and based on a 12-month unweighted arithmetic average sales price, calculated on a first-day-of-the-month basis, with cost factors based on those at the [...]
[...] in the debooking of proved oil or gas reserves, if they become uneconomic in this type of price environment. Prolonged periods of low oil and gas prices, or rising costs, can result in projects being delayed or cancelled. In addition, assets have been impaired in the past, and there could be [...]
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Proved reserves