The first-ever collaborative field demonstration project conducted by Osage Partners LLC, TIORCO, Chemical Tracers Inc., and the Enhanced Oil Recovery Institute (EORI) was completed in the Bradley Unit of the Osage oil field in October. The purpose of this project was to collect an in situ measurement of residual oil saturation from the reservoir. The single-well chemical tracer test also evaluated the effectiveness of an alkali-surfactant-polymer (ASP) to mobilize stranded oil.