The Energy, Mines and Resources Department says it was sending a presentation and speech to other departments for review when the email was mistakenly forwarded to a local reporter.
It includes recommendations to focus on fracking and oil and gas basins in the territory and has since been publicly released.
The documents outline a government response including a public information campaign and an economic study.
The government says the recommendations do not advise a decision to either allow or disallow fracking and noted that there are no current proposals for shale and gas development.
The documents were drafted for a presentation to Parliament later this month in response to a select committee's report on fracking in the Yukon.