And no lawsuit emerged from that knowledge?

Situation normal. Corps run America including all the means of justice. I'm sure they were involuntary forced into an arbitration agreement by having the oil fall on their land and not putting it back into the pipe.

Yeah the farmers were pretty much forced to sell the land to the pipeline company. There wasn't a practical choice. The best you could do is to hold out for a somewhat better offer than the first one.

Not sure I understand the question. Everyone in the local area knew that pipes like this leak. Hence it leaking is not a surprise.