In Mary et al. QEP Energy Company  the question was, given an encroachment of a pipeline onto the property of another, what is the test for determining the good faith, or not, of the party in possession?

Ms. Mary and QED were parties to a Pipeline Servitude Agreement and what appears to be an oil and gas lease (the court could have just called it that). Ms. Mary  et al claimed that QED’s gas pipelines unlawfully extended onto their property by 31 feet and 15 feet and sought disgorgement of the profits derived from the pipelines. The issue was to determine the source of the liability of QED, the encroacher, which would determine damages.   
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