Estimated Value by Well
The wells driving the estimated value of Duane Barnes's mineral portfolio.
Estimated values combine recorded decimal interests with recent well production.
Get a firm cash offer for these mineral and royalty interests. We review your production history and respond within two business days.
Production History & Forecast
Combined monthly oil and gas production from the most active wells associated with Duane Barnes, with a 36-month decline-curve forecast.
Source: Railroad Commission of Texas lease production filings. Condensate volumes are reported with gas. The dashed forecast is a decline curve fitted to the production history — an estimate, not a guarantee of future production.
Interests Held By Duane Barnes
Royalty and mineral interests from the 2025 county tax roll, matched to producing oil and gas wells. Sorted by estimated value.
| # | Property | County | Operator | Interest | Type | Est. Value |
|---|---|---|---|---|---|---|
| 1 | GRISWELL-NOWLIN (SA) 2 API 25133379 | Johnson County, TX | FDL OPERATING LLC | 0.016973 | R | $2,684.11 |
| 2 | GRISWELL-NOWLIN (SA) 3 API 25133357 | Johnson County, TX | FDL OPERATING LLC | 0.017223 | R | $1,032.69 |
| 3 | GRISWELL 5 API 25133359 | Johnson County, TX | FDL OPERATING LLC | 0.017538 | R | $873.13 |
| 4 | GRISWELL 4 API 25133358 | Johnson County, TX | FDL OPERATING LLC | 0.017538 | R | $519.16 |
| 5 | GRISWELL-NOWLIN (SA) 1 API 25133324 | Johnson County, TX | FDL OPERATING LLC | 0.016854 | R | $205.22 |
| 6 | PAULINE HARRISON 3 API 25131955 | Johnson County, TX | FDL OPERATING LLC | 0.000741 | R | $51.56 |
How It Works
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Tell us how to reach you and we'll prepare a no-obligation offer for the interests held by Duane Barnes.