# Cost basis on sale of mineral interest
**URL:** https://www.mineralrightsforum.com/t/cost-basis-on-sale-of-mineral-interest/40908
**Category:** Accounting and Taxes
**Created:** [January 29, 2019, 9:22pm UTC](https://www.mineralrightsforum.com/t/cost-basis-on-sale-of-mineral-interest/40908 "2019-01-29T21:22:04Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Ln0329](https://www.mineralrightsforum.com/u/Ln0329)
#### Post date: [January 29, 2019, 9:22pm UTC](https://www.mineralrightsforum.com/t/cost-basis-on-sale-of-mineral-interest/40908/1 "2019-01-29T21:22:04Z")
I need to find out what my mineral rights were worth in 1974 since I sold half of them in 2018 and my CPA needs to know for tax purposes. Is there a public record site where I can research the value of minerals in Midland County, Texas?
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### Author:  [@TennisDaze](https://www.mineralrightsforum.com/u/TennisDaze)
#### Post date: [January 29, 2019, 10:30pm UTC](https://www.mineralrightsforum.com/t/cost-basis-on-sale-of-mineral-interest/40908/2 "2019-01-29T22:30:35Z")
Your original cost basis is the price you paid when you purchased. Or it could be the estate value if you inherited. If you received the minerals as a gift, then your basis would be that of the donor. Regardless, you must reduce your original basis by the depletion that you have taken over the years. If your cumulative depletion exceeds the original basis, then your basis at the time of sale would be zero.
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### Author:  [@Ln0329](https://www.mineralrightsforum.com/u/Ln0329)
#### Post date: [February 21, 2019, 5:51pm UTC](https://www.mineralrightsforum.com/t/cost-basis-on-sale-of-mineral-interest/40908/3 "2019-02-21T17:51:30Z")
Thank you for your response. I inherited the mineral rights and the estate had no value on those interests when I inherited them. That’s why I am trying to find out how to determine what their value was in 1974.
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### Author:  [@MRFAdmin\_SV](https://www.mineralrightsforum.com/u/MRFAdmin_SV)
#### Post date: [January 11, 2025, 7:12pm UTC](https://www.mineralrightsforum.com/t/cost-basis-on-sale-of-mineral-interest/40908/4 "2025-01-11T19:12:56Z")