(Reuters) - Shell said on Thursday it expects its proved oil and gas reserve replacement ratio for last year to be 85%.

The reserve replacement ratio (RRR) measures how much oil and gas a company adds to its reserves compared with what it produces.

A ratio of 100% or more means the company is replacing its reserves at the same rate or faster than it depletes them.

On a three-year basis, Shell said its RRR was expected to be 108%.

The oil major also added that its 2024 reserves are expected to be about 9.6 billion barrels of oil equivalent.