Heating oil, propane, bioheat, kerosene, diesel fuel, or gasoline Keyser Energy delivers more than something to keep you warm or fuel your business. Our preventative maintenance plans, stable pricing (sign up anytime), and 24/7 emergency service all add up to provide every customer –Federal Stimulus Energy plan? You can get up to $1500 on new equipment installations and save as much as 30% each year on your energy costs. Thinking about Energy conservation? Think Keyser.