30 CFR §1202.555

1. (a)All gas produced from or allocated to your Indian lease is subject to royalty except the following:
   1. (1)Gas that is unavoidably lost.
   2. (2)Gas that is used on, or for the benefit of, the lease.
   3. (3)Gas that is used off-lease for the benefit of the lease when the Bureau of Land Management (BLM) approves such off-lease use.
   4. (4)Gas used as plant fuel as provided in § 1206.179(e).
2. (b)You may use royalty-free only that proportionate share of each lease's production (actual or allocated) necessary to operate the production facility when you use gas for one of the following purposes:
   1. (1)On, or for the benefit of, the lease at a production facility handling production from more than one lease with BLM's approval.
   2. (2)At a production facility handling unitized or communitized production.
3. (c)If the terms of your lease are inconsistent with this subpart, your lease terms will govern to the extent of that inconsistency.