Due to a gas emanation event in the Gulf of Mexico in 1998, a platform shook for approximately 4 hours. As a result, a desk study and a site characterization program were con-ducted in 2002 to evaluate the geological conditions and mechanical properties of the foundation soils. On the results was found that there are certain areas with shallow gas pockets, and in some of them, it was noted that shallow gas accumulations increase their size and number through time. It also identified some areas where the gas seeps into the water column. It was also observed that the clay was saturated with gas, or some parts of the clay strata contained a high volume of gas, recognizing that the clay could also contain gas. A methodology was developed to try to under-stand how the clay was saturated with gas. This article focuses on the methodology developed to study marine clay with gas and some of its results, in which it is shown that depending on the application of the load and consistency, marine clay may have a slightly higher resistance to higher gas content.