Over time, these would degrade, and they could discharge the oil into the surrounding grounds.

I was discharged from a bankruptcy (chapter 7) over 2 years ago and have to wait the full 4 years before applying for a conventional loan.

How do I check if the bankruptcy has been discharged?

Property is being auctioned, O&E and Pacer show a BK that is not discharged.

Or if it's discharged in bankruptcy.

At which point, all private liens on the property (mortgages, private liens, etc) are discharged with the exception of government liens like state liens and IRS tax liens, etc.   

In my case it was discharged, which is good however this doesn't mean the case is closed.

There were several other tax sale liens, second mortgages, and a federal lien, and all were paid off/discharged.  

The current principal remaining is ~$310,000In my last discussion with the local bank rep, he said the bank is almost always willing to discharge a property out from under the umbrella if there is an appropriate reduction in loan principal from the sale.

The discharge of the mortgage needs to be recorded at the Registry of Deeds.