When the PC's left power there was $18B or so in it. Now it is at $19B.
http://finance.alberta.ca/business/ahstf/index.html

When the Alberta PC's left power in 2015 they left:
1) a budget surplus of $1.1B
2) a Heritage fund of $18.8B
3) a budget contingency fund of $6.5B

https://www.alberta.ca/release.cfm?xID=38258BBA68549-0C98-394E-DA64AFEB6AA20967

Some mess. Huge mess now that the NDP has been in 2 years.