Editing Oil extracted (volume) (section)

== Boundary Conditions ==
Boundary inclusions encompass all crude oil and liquid hydrocarbon volumes extracted from natural reservoirs, including both onshore and offshore production. This includes conventional and unconventional oil sources where volume can be reliably measured or estimated. Boundary exclusions comprise refined petroleum products, natural gas liquids separated post-extraction, and volumes associated with oil extraction waste or byproducts not classified as extracted oil. The signal excludes secondary processing and consumption stages, focusing strictly on the volume removed from reservoirs.