External Assurance

ONEOK has received third-party limited assurance from independent registered public accounting firm PricewaterhouseCoopers LLP (PwC) for specific 2019 environmental and safety metrics. Metrics receiving assurance include: Scope 1 and 3 greenhouse gas emissions (as reported to the U.S. Environmental Protection Agency), days away restricted or transferred (DART) incident rate, total OSHA-recordable illness and injury rate (TRIR), preventable vehicle incident rate (PVIR) and employee fatalities. Download the assurance statement here.