The US Natural Gas Well Head Price [17] has been
considered as dependent (Response) variable where as the
US Crude Oil First Purchase Price [16] and Gold Average
price [18] have been considered as independent (Predictor)
variables. Time Series data (monthly data) for the period
January 1976 to September 2011 constitute the input
parameters for modeling. The abbreviations - US Crude Oil
First Purchase Price - USCOFPP (USD/Barrel), US Natural
Gas Well Head Price- USNGWHP (USD/TCF), and Gold
Average Price - GP (USD/Gram) have been used. USD and
TCF are acronym for United States Dollar and Trillion
Cubic Feet respectively. Barrel is the unit of volume in
which crude oil is measured and one US barrel is 42 US
gallons.