Two leases in Southern California are being combined to form the South Field Unit.

• Lease 1:
   WI: 100% Sun Coast Co.
   RI: 1/7 Michael Black
   1/8 Emma Green
   Acreage contributed: 650 acres
   Estimated net recoverable bbls: 260,000 bbls
• Lease 2:
   WI: 65% Ocean Wave Ltd
   35% Shoreline Inc
   RI: 1/3 Samuel White
   Acreage contributed: 450 acres
   Estimated net recoverable bbls: 300,000 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 40% and the net recoverable barrels weighted 60%.