Texas Mineral Rights · 2025 Tax Roll

John Castleman Jr. & Sonya D.

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

Estimated Market Value
$284.95
Based on the 2025 tax roll and recent well production
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Veteran-OwnedFulshear, TexasEst. 2019Offers in 2 Business Days
Well Interests
13
2025 county tax roll
Counties
1
Johnson
Producing Wells
13
Matched to RRC records
Owner Location
Alvarado
Texas
Where the value sits

Estimated Value by Well

The wells driving the estimated value of John Castleman Jr. & Sonya D.'s mineral portfolio.

Top Wells by Estimated Value
FOWLER 4 H
Johnson County · UPP OPERATING LLC
$45.67
FOWLER UNIT 13H
Johnson County · UPP OPERATING LLC
$39.58
FOWLER 5 H
Johnson County · UPP OPERATING LLC
$38.03
FOWLER UNIT 12H
Johnson County · UPP OPERATING LLC
$37.50
FOWLER UNIT 10H
Johnson County · UPP OPERATING LLC
$28.63
FOWLER UNIT 8H
Johnson County · UPP OPERATING LLC
$20.86

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 Castleman Jr. & Sonya D., 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 Castleman Jr. & Sonya D.

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

#PropertyCountyOperatorInterestTypeEst. Value
1FOWLER 4 H
API 25131461
Johnson County, TXUPP OPERATING LLC0.000197R$45.67
2FOWLER UNIT 13H
API 25133911
Johnson County, TXUPP OPERATING LLC0.000197R$39.58
3FOWLER 5 H
API 25131651
Johnson County, TXUPP OPERATING LLC0.000197R$38.03
4FOWLER UNIT 12H
API 25133910
Johnson County, TXUPP OPERATING LLC0.000197R$37.50
5FOWLER UNIT 10H
API 25133903
Johnson County, TXUPP OPERATING LLC0.000197R$28.63
6FOWLER UNIT 8H
API 25133907
Johnson County, TXUPP OPERATING LLC0.000197R$20.86
7FOWLER UNIT 7H
API 25133899
Johnson County, TXUPP OPERATING LLC0.000197R$20.38
8FOWLER 18H
API 25133621
Johnson County, TXUPP OPERATING LLC0.000197R$15.63
9FOWLER 2 H
API 25131459
Johnson County, TXUPP OPERATING LLC0.000197R$13.15
10FOWLER 3H
API 25131460
Johnson County, TXUPP OPERATING LLC0.000197R$12.94
11FOWLER 1H
API 25131145
Johnson County, TXUPP OPERATING LLC0.000197R$7.66
12FOWLER UNIT 9H
API 25133596
Johnson County, TXUPP OPERATING LLC0.000197R$4.10
13FOWLER UNIT 11H
API 25133909
Johnson County, TXUPP OPERATING LLC0.000197R$0.81
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