In many unconventional reservoirs, accurately predicting effective fracture height remains one of the biggest challenges.  In thick stacked plays like the Wolfcamp formation in the Delaware Basin, effective fracture height becomes a critical factor in determining the number of stacked laterals required to successfully develop the acreage.  ConocoPhillips recently designed a vertical fracture characterization well to empirically determine and gain critical insight into created fracture height.  The presentation will review the framework, observations, and findings from this project and will offer a comparison to other diagnostics used for characterizing fracture geometry.