Austin Chalk

Austin Chalk Play Map

Austin Chalk Horizontal Production


The graphic above presents all Austin Chalk horizontal wells completed in the Eagle Ford Play since 2008.

Typically considered a legacy play, the peak of Austin Chalk development occurred in the 90s. However, horizontal development has seen a slight uptick in recent years, with the majority of modern development being concentrated in the “Karnes Trough”.

This highly fractured chalk reservoir is sourced by the underlying Eagle Ford Shale. The Austin Chalk ranges in thickness from 150’ – 800’ and has many named members, commonly divided into an upper chalk, middle marl, and lower chalk. Productivity relies heavily on interconnected natural fracture networks present in the brittle chalk zones.

Methodology Overview

VSO sourced landing bench and production data from IHS to prepare these maps.

Reservoir & Geologic Studies

VSO has completed extensive analysis of well performance and productivity throughout the Eagle Ford Play. Additional reservoir and geologic capabilities include:

Assessment of Development Potential and Risks

Type Well Analysis

Evaluation of Well Performance and Interference

Midstream/Supply Studies

Audits/Evaluations of Producing Assets

Key Cross-Sections

Reservoir Quality Maps – Porosity, TOC, OOIP

Upside development Reservoir Quantity Maps – Gross and Net Isopachs

Pressure Trends

Maturity & GOR Impacts