Two leases in Northern Alberta are being combined to form the North Field Unit.

Lease	WI	RI	Acreage Contributed	Estimated Net Recoverable bbls
Lease 1	100% Rocky Oil Co.	1/7 Steve White, 1/8 Susan Brown	1,100 acres	420,000 bbls
Lease 2	75% Mountain Oil Ltd, 25% Prairie Sands Inc	1/3 Nancy Black	900 acres	510,000 bbls

Requirement:
 a. Calculate the participation factors for each party based on the acreage contributed.
 b. Calculate the participation factors for each party based on the net recoverable barrels contributed.
 c. Calculate the participation factors for each party based on the acreage contributed weighted 30% and the net recoverable barrels weighted 70%.