International relations theories emphasize the stabilizing role hegemons play in world politics. But little scholarship has examined the link connecting hegemony to its potentially positive returns in the security realm: force posture. We correct this deficit by developing and testing an argument about the consequences of different hegemonic force postures under varying threat conditions. We present a typology of force posture options and probe their effects through over-time analysis of how major powers have worked to provide one particularly important public good since 1945: access to Persian Gulf oil. Drawing on field work, we also explore the implications of our framework for current and future US force posture in the region. We conclude that hegemonic stability is a very real phenomenon in the Gulf, but it does not require the massive forward deployment of US forces that has characterized the past twenty years of US presence there.