In the log response modeling phase of this study, elemental analyses of hypothetical gas hydrate accumulations suggest that neutron spectroscopy log-derived carbon/oxygen ratios can be used to calculate gas hydrate saturations in complex reservoir systems. To use downhole log-derived carbon/oxygen data to calculate gas hydrate saturations in complex reservoirs, a "conventional" carbon/oxygen hydrocarbon saturation equation (Eq. 2) was modified into a new equation (Eq. 6) that accounts for the unique carbon and oxygen composition of gas hydrate and also for the presence of clay and organic carbon in the sediment matrix. The modified carbon/oxygen gas hydrate saturation equation (Eq. 6) and carbon/oxygen elemental data from the GLT were used to determine gas hydrate saturations at all three Blake Ridge drill sites (Sites 994, 995, and 997). The carbon/oxygen elemental data from the GLT on the Blake Ridge was severely degraded by poor borehole conditions. In zones of relatively high-quality log data, however, the carbon/oxygen elemental data yield gas hydrate saturations that compared favorably with saturations calculated by other methods.