Hall v. Conoco, No. 17-6086 (10th Cir. 2018)Annotate this Case
Samantha Hall was diagnosed with leukemia; she attributed the disease to a ConocoPhillips refinery’s emissions of a chemical known as benzene. Hall lived near ConocoPhillips’s refinery in Ponca City, Oklahoma. Roughly two decades later, she developed a form of leukemia known as “Acute Myeloid Leukemia with Inversion 16.” Liability turned largely on whether benzene emissions had caused Hall’s leukemia. On the issue of causation, the district court excluded testimony from two of Hall’s experts and granted summary judgment to ConocoPhillips. After review, the Tenth Circuit Court of Appeals affirmed because: (1) the district court did not abuse its discretion in excluding the expert testimony; and (2) expert testimony was necessary to create a genuine issue of material fact on causation because of the length of time between the exposure to benzene and the onset of Hall’s disease.