Karen Gay Silkwood was an American chemical technician and labor union activist known for reporting concerns about corporate practices related to health and safety in a nuclear facility.

The Kerr-McGee Corporation, founded in 1929, was an American energy company involved in oil exploration, production of crude oil, natural gas, perchlorate and uranium mining and milling in various countries. On June 23, 2006, Anadarko Petroleum acquired Kerr-McGee in an all-cash transaction totalling $16.5 billion plus $2.6 billion in debt and all operations moved from their base in Oklahoma, United States. As a result of further acquisitions, most of the former Kerr-McGee is now part of Occidental Petroleum.