The large volume of shut-in natural gas production in the US Gulf of Mexico following the 2005 hurricane season led some US policymakers to consider whether creating a Natural Gas Strategic Reserve (NGSR) might be beneficial.  This paper uses a system dynamics-based approach to analyze whether a NGSR is needed, and what having one would mean for the US natural gas infrastructure.  Analysis shows that the infrastructure is likely resilient in the face of a more stringent test than the 2005 hurricane season provided.   Moreover, as the infrastructure is essentially a closed system, any replenishment of the NGSR would compete for gas with other users, and depending on the rate of replenishment could cause a disruption as large as that it was created to prevent.