Manitoba minerals and petroleum represent the province's 2nd largest primary resource industry and the sector is a key contributor to Manitoba's ongoing economic growth. In 2012, the combined value of mineral production for metals ($1.325 billion), industrial minerals ($187.5 million) and petroleum ($1.62 billion) totalled about $3.13 billion. The industries employ an average of 5,700 workers directly, with many more in indirect jobs and generating millions of dollars in spin-off business.