Glossary of Terms Continued Term Definition STI Short‑term incentive. t Tonne. TRIR Total Recordable Incident Rate. TSR Total shareholder return. Tullow Tullow Peru Limited Sucursal del Peru or Tullow Oil plc. UN United Nations. unrisked A risk value has not been applied to an estimate of hydrocarbon volume either in place or recoverable. $, US$ or USD United States dollars. Karoon Energy Ltd 138 Annual Report 2021