August 1-Nov 12 2014 used 114.4 gallons @ $3/gal $343.20/104 days=1.1 gallons/day
Nov 12-Dec 30 used 132.4 gallons @ $2.59/gallon $342.92/49 days = 2.7 gallons/day.
Dec 31-Feb 6 used 138.7 gallons @ $2.35/gallon $325.95/37 days=3.75 gallons/day
Feb 7-Mar 16 used 140 gallons @ $2.69/gallon $376.60/37 days=3.78/gallons/day
Mar 17-May 18th used 122 gallons @ $2.49/gallon $303.78/62 days=1.96/gallons/day
Spent $1697.45 to date with 2 1/2 months left (no heating months) to the end of our tenancy year, estimating 1.1 gallons/day @ $2.49 (current price), we should use approx. 77 gallons/oil or $191.73, bringing this "year's" total to well under $2000. I was spending more than double that at the former rental! Call it 4167.67/month towards oil for heat/hot water-I remain more than happy, all things considered. This calculation helps me to offset the increase in rent. It's the big, budgetary picture that I keep in mind.