[The Grim Freeper]

That was the second thing I thought of, after oil, but there is no smell. It is not sewage.

The ground dried a bit and I just went back to look at it again. It seeped back into the ground, but it is still black in those patches where it had oozed up before--just not glistening.

[ErnBatavia]

It seeped back into the ground, but it is still black in those patches where it had oozed up before--just not glistening.

They just need to draw their blinds at night....sounds like they only had an "excitable prowler" who downloaded on his way out.

[expatpat]

It may be from an old buried oil tank.

[pbear8]

it is still black in those patches where it had oozed up before