Texas Mineral Rights · 2025 Tax Roll

John K Griswell III and Lynn

Mineral and royalty interests on file for this owner of Keene, TX, compiled from public county tax rolls and Railroad Commission of Texas production records.

Estimated Market Value
$4,680.50
Based on the 2025 tax roll and recent well production
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Veteran-OwnedFulshear, TexasEst. 2019Offers in 2 Business Days
Well Interests
11
2025 county tax roll
Counties
1
Johnson
Producing Wells
11
Matched to RRC records
Owner Location
Keene
Texas
Where the value sits

Estimated Value by Well

The wells driving the estimated value of John K Griswell III and Lynn's mineral portfolio.

Top Wells by Estimated Value
GRISWELL-NOWLIN (SA) 2
Johnson County · FDL OPERATING LLC
$2,132.20
GRISWELL-NOWLIN (SA) 3
Johnson County · FDL OPERATING LLC
$820.31
GRISWELL 5
Johnson County · FDL OPERATING LLC
$693.61
GRISWELL 4
Johnson County · FDL OPERATING LLC
$412.42
GRISWELL-NOWLIN (SA) 1
Johnson County · FDL OPERATING LLC
$163.02
DARBY 1H
Johnson County · TEP BARNETT USA LLC
$131.68

Estimated values combine recorded decimal interests with recent well production.

Value by County
Johnson County100.0%
No obligation · Veteran-owned · Fulshear, TX
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Production History & Forecast

Combined monthly oil and gas production from the most active wells associated with John K Griswell III and Lynn, with a 36-month decline-curve forecast.

Oil (barrels)Gas + condensate (MCF)36-month forecast
Loading production history…

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.

Ownership records

Interests Held By John K Griswell III and Lynn

Royalty and mineral interests from the 2025 county tax roll, matched to producing oil and gas wells. Sorted by estimated value.

#PropertyCountyOperatorInterestTypeEst. Value
1GRISWELL-NOWLIN (SA) 2
API 25133379
Johnson County, TXFDL OPERATING LLC0.013483R$2,132.20
2GRISWELL-NOWLIN (SA) 3
API 25133357
Johnson County, TXFDL OPERATING LLC0.013681R$820.31
3GRISWELL 5
API 25133359
Johnson County, TXFDL OPERATING LLC0.013932R$693.61
4GRISWELL 4
API 25133358
Johnson County, TXFDL OPERATING LLC0.013932R$412.42
5GRISWELL-NOWLIN (SA) 1
API 25133324
Johnson County, TXFDL OPERATING LLC0.013388R$163.02
6DARBY 1H
API 25133759
Johnson County, TXTEP BARNETT USA LLC0.000600R$131.68
7DARBY 4H
API 25134201
Johnson County, TXTEP BARNETT USA LLC0.000600R$94.53
8DARBY 2H
API 25134198
Johnson County, TXTEP BARNETT USA LLC0.000600R$92.28
9DARBY 6H
API 25134233
Johnson County, TXTEP BARNETT USA LLC0.000600R$58.79
10DARBY 5H
API 25134202
Johnson County, TXTEP BARNETT USA LLC0.000600R$55.19
11DARBY 3H
API 25134199
Johnson County, TXTEP BARNETT USA LLC0.000600R$26.48
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