@wikipediaThe total volume of hydrocarbon reserves expected to be recovered from a reservoir by the end of its producing life.
Based on context may mean either Estimated Ultimate Oil Recovery Factor (EUORF) or Estimated Ultimate Gas Recovery Factor (EUGRF)
The maximum expected volume of Petroleum Hydrocarbons to be recovered is called Estimated Ultimate Recovery (EUR).
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Petroleum Industry / Upstream / Production / Subsurface Production / Estimated Ultimate Recovery (EUR)
[ Estimated Ultimate Oil Recovery (EUOR) ] [ Estimated Ultimate Gas Recovery (EUGR) ]