Changing energy prices will normally have important long range implications for an oil-importing country with a persisting trade deficit. The availability of relatively expensive local energy can complicate the issue further since developing such resources may save foreign exchange but may be inefficient in the long run. This paper describes two nonlinear programming models for energy policy analysis in which foreign trade is considered within a one-sector representation of the economy. A putty-clay technology is assumed as it is more representative of non-mature market economies which have to deal with such problems. The models are capable of addresing energy issues in general as demonstrated by results for Turkey.