There is no cut-off for gas readings. Cuttings gas analysis in wells is slightly better than crystal ball gazing. As you know, gas shows are a function of a multitude of parameters like penetration rate, organic matter like coal presence, mud weight etc. You don't know what is there until the logs are in and Moby-1 sampled gas on wireline. What is your basis of 10,000ppm being uneconomic?