Signing in to an existing Oil Empire account loads the progress associated with that account and may replace the local progress that was previously active.

Logging out clears the account-linked local state and returns the device to guest mode. Successfully synchronized account progress should remain associated with your account.

Guest progress may be lost when the game is deleted, application data is cleared or the device is reset. If the progress was never associated with an account, recovery may not be possible.

Check your internet connection, remain signed in, restart the game and try again. If the problem continues, contact support before deleting or reinstalling the game.

Not as your first troubleshooting step. Reinstalling can remove local guest data. Contact support first if the progress is important.