Reserves  estimation  of  most  oil  fields  is  often 

performed  through  the  Material  Balance  and 

Volumetric  methods.  Alternatively,  a  simple 

Estimation Model and Least Squares Regression 

may  be  useful  or  appropriate.  This  model  used 

alongside with  Linear Regression Analysis in this 

study  gives  improved  estimates  of  the  fields 

considered, hence can,  be used in other Nigerian 

Fields with recent production history