This is an interesting situation to me. I moved to Reno a little over 20 years ago. I have been active in purchasing oil/gas mineral rights several States for my own account as well as managing properties for clients since 1981. I researched an involvement in purchasing “hard rock” mineral rights in NV, but decided it was too high of a learning curve at the time. OXY will perform an analysis using some type of discounted cashflow rate of return (DCROR) analysis for the project. This will help them determine the terms of any development agreement. NGM has performed a similar analysis since the will have a “Hurdle Rate” for the project. It looks like NGM is related to Barrick and Newmont, so you may want to look at their investor presentations to gain some insight on the value of this property. If they need your property for efficient development (location), then you may be able to work on better terms. You may want to look to UNR and/or Colorado School of Mines for relevant publications. Good luck and be patient.