A lawsuit filed by the two sons of former Pure Oil worker, George T. Kleepsies, alleges his development of multiple myeloma and subsequent death was caused by exposure to benzene during his time of employment with Pure Oil.

The complaint claims that during his time of employment with Pure Oil, now known as Unocal and Chevron, Kleepsies was exposed to benzene and benzene containing products.

The complaint claims that Kleepsies’ workplace exposure to carcinogenic benzene caused him to develop multiple myeloma and an eventual “painful and terrible death.”

The complaint claims that despite the company’s knowledge of potential dangers associated with benzene exposure, Pure Oil failed to exercise adequate safety precautions to ensure that employees were not exposed to carcinogenic materials.