The dominant Mississippian-age oil producer of the Illinois Basin. Active waterflood production across southeastern Illinois, southwestern Indiana, and Western Kentucky.
Get Your Free Mineral ValuationThe Aux Vases Sandstone is a Late Mississippian-age sandstone formation that is the dominant oil-producing unit across the Illinois Basin. The formation typically sits at depths of 1,500 to 3,000 feet across the basin and supports continuous production from waterflood operations dating back nearly a century. Production from the Aux Vases appears on royalty statements across thousands of mineral interests in southern Illinois, southwestern Indiana, and Western Kentucky.
Age: Late Mississippian (~340 million years)
Depth: Approximately 1,500–3,000 feet TVD across the basin
Lithology: Fine- to medium-grained sandstone with high porosity and good permeability
Stacked context: Underlies the Cypress Sandstone; overlies the Renault Limestone and McClosky
Illinois: White, Wayne, Hamilton, Saline, Gallatin, Marion, Clay, Effingham, Edwards, Richland, Jasper, Wabash, Crawford, Lawrence
Indiana: Posey, Gibson, Knox, Daviess, Pike, Sullivan, Greene, Vigo, Warrick
Kentucky: Henderson, Daviess, Hopkins, Webster, Union, McLean, Ohio, Muhlenberg
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