Irving Oil
| Company type | Private | 
|---|---|
| Industry | Oil and petroleum | 
| Founded | Irving filling station: April 1924 Bouctouche, New Brunswick, Canada Irving Oil Company: February 1929 Saint John, New Brunswick, Canada | 
| Founder | K. C. Irving | 
| Headquarters | Irving Oil Home Office Saint John, New Brunswick, Canada | 
| Key people | James K. Irving Arthur Irving John E. Irving | 
| Products | Fuels, Lubricants, Petrochemicals | 
| Parent | Irving Group of Companies | 
| Website | www | 
Irving Oil Ltd. is a Canadian privately owned intergenerational gasoline, oil, and natural gas producing and exporting company, a subsidiary of the parent company Irving Group of Companies, one of the largest "private conglomerates" in North America. Irving Oil was established in 1924 by Canadian oil baron and billionaire, Kenneth "K.C." Irving, whose family fortune when he died in 1992 was estimated by Forbes at USD$5 billion. His son, Arthur, became chairman and president of Irving Oil. Arthur Irving died in 2024.
Irving Oil operates Canada's largest refinery, the Irving Oil Refinery, in Saint John, New Brunswick, and Ireland's only refinery, in Whitegate, County Cork, as well as a network of gasoline stations, fleet of oil tankers, real estate and other related assets. Irving Oil's Home Office is located in Uptown Saint John and was officially opened in 2019.