Section 3137.81 - What is the function of a participating area?(a) The function of a participating area is to allocate production to each committed tract within a participating area. The BLM will allocate production for royalty purposes to each committed tract within the participating area using the allocation methodology agreed to in the unit agreement (see § 3137.23(g) of this subpart).(b) For exploratory and primary recovery operations, BLM will consider gas cycling and pressure maintenance wells when establishing participating area boundaries.(c) For secondary and tertiary recovery operations, BLM will consider all wells that contribute to production when establishing participating area boundaries. 67 FR 17886 , Apr. 11, 2002, as amended at 73 FR 6444 , Feb. 4, 2008