[Code of Federal Regulations] [Title 25, Volume 1] [Revised as of April 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 25CFR225.23] [Page 616-617] TITLE 25--INDIANS CHAPTER I--BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR PART 225_OIL AND GAS, GEOTHERMAL, AND SOLID MINERALS AGREEMENTS --Table of Contents Subpart B_Minerals Agreements Sec. 225.23 Economic assessments. The Secretary shall prepare or cause to be prepared an economic assessment that shall address, among other things: (a) Whether there are assurances in the minerals agreement that operations shall be conducted with appropriate diligence; (b) Whether the production royalties or other form of return on mineral resources is adequate; and (c) Whether the minerals agreement is likely to provide the Indian mineral owner with a return on the production comparable to what the owner might otherwise obtain through competitive [[Page 617]] bidding, when such a comparison can reasonably be made.