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USGS National and Global Oil and Gas Assessment Project-Permian Basin Province, Midland Basin, Spraberry Formation Assessment Units

June 12, 2018

The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic elements that define the Assessment Unit, such as limits of reservoir rock, geologic structures, source rock, and seal lithologies. The only exceptions to this are Assessment Units that border the Federal-State water boundary. In these cases, the Federal-State water boundary forms part of the Assessment Unit boundary.

Publication Year 2018
Title USGS National and Global Oil and Gas Assessment Project-Permian Basin Province, Midland Basin, Spraberry Formation Assessment Units
DOI 10.5066/F7CR5SKN
Authors Kristen R Marra
Product Type Data Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Central Energy Resources Science Center
Rights This work is marked with CC0 1.0 Universal
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