Decisions to develop gas resources in less developed countries require
a careful appraisal of their possible utilization in the various sect
ors of the economy. Not only need major potential consumers such as pe
trochemical or fertilizer industries be taken into account but more di
ffuse phenomena such as the competition with other fuel forms for the
supply of some energy intensive services or the conquest of new market
s have to be considered. We present here a gas planning model based on
the basic ideas of the theory of non-renewable resources which allows
a look at the field development problem while simultaneously taking a
ccount of the impact competition may have on the demand side. The use
of the model is illustrated on a study carried out for the World Bank
on a gas timing development problem that occurred some time ago in Ind
onesia.