This paper considers the interactions of consumers demanding energy services provided by fossil fuels delivered by a cartel and a synfuel industry (competitive, cartelized or run by a consumer cartel, say International Energy Agency [IEA]). The emphasis of this paper is to account for the necessarily sluggish build up capacities instead of the instantaneous unconstrained availability assumed in the backstop literature and to investigate intertemporal and subgame perfect equilibria (in Markov strategies).