RESTRICTED CASH

6 Months Ended

Oct. 31, 2011

RESTRICTED CASH [Abstract]

RESTRICTED CASH

4. RESTRICTED CASH

Restricted cash includes $1.9 million on deposit with the Saskatchewan Ministry of Energy and Resources as collateral for unfunded liability under the Saskatchewan Oil and Gas Orphan Fund and the Licensee Liability Rating Program.  The restricted cash is in the form of a letter of guarantee maturing April 29, 2012. Restricted cash also includes $0.8 million of contractual payment obligations to employees that are held in escrow for payment in January 2012.