There is no account for a meter that is wrong, there would be no reason for either agent to know the meter was faulty, and so the onus would have to fall on the sellers, who would or should have known that the meter was not accurate--or at least should have suspected that it might have been inaccurate.
Fuel in storage is LP gas or oil or wood pellets or even cord wood. (We don't generally charge for cord wood anymore), but you were charged for the oil and did not receive the oil as promised. I would call my Realtor and discuss this with him or her. You and your Realtor should be able to determine about how much oil was actually in the tank, and minus that from what you were charged. Your Realtor may then be able to get the sellers to reimburse you without taking any "legal" steps, but that would be your next method of satisfaction.
One of the documents you both signed at closing states that if any errors were made at the closing, you would work together "in good faith" to correct the error. You will now see why this small document, that meant so little when you signed it, is so important.
That's like saying I just put fertileizer on the lawn too also I paid someone to plow the driveway and planted new shurbs and so on. Or saying yes my car is for sale but you have to payme back for the gas, and oil change, oh and i can give you the old tires that still pass inspection if you don't want to pay me for the new one i just put on . Lets get real you sell your home you shouldn't be reembursed for oil or naything else. Lets face it all the old homes in rochester nh are so over priced to start with and most of the home with under 1400 sq. ft. are also over priced
Oil prorations are a matter between you and the seller, the agent is not responsible because the gage was wrong. I've been using the gage reading in my 28 years of real esaate sales. I do try to have the seller present the l;ast receipt they may have but that is not always possible. You can go after the seller for the money but the transaction is complete so unless the seller feels it's the rioght thing to do you're pretty much on your own. Get that gage fixed, try to find out who manufactured the oil tank and see what you can do because of a faulty gage. Butyv that to may be a long road that's not worth the effort.
Can we figure out when the guage broke?
Was it unkown before the closing?
If the prior owner did not know the guage was broken you lieley have less of a case.
How much money are we talking? a few hundred dollars may not be worth pursuing. A few thousand however might be. That is something only you can decide.