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

Lease 1
 WI: 100% Silver State Co.
 RI: 1/8 Betty Grey
 1/10 Mark Green
 Acreage contributed: 550 acres
 Estimated net recoverable bbls: 250,000 bbls

Lease 2
 WI: 70% Mountain Ridge Ltd
 30% High Desert Inc.
 RI: 1/3 Frank Brown
 Acreage contributed: 350 acres
 Estimated net recoverable bbls: 300,000 bbls

Requirement:
 a. Determine the participation factors for each party based on the acreage contributed.
 b. Determine the participation factors for each party based on the net recoverable barrels contributed.
 c. Determine the participation factors for each party based on the acreage contributed weighted 50% and the net recoverable barrels weighted 50%.