Texas Mineral Rights · 2025 Tax Roll

Sun Seong Heo and Dong G

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

Estimated Market Value
$481.96
Based on the 2025 tax roll and recent well production
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Veteran-OwnedFulshear, TexasEst. 2019Offers in 2 Business Days
Well Interests
6
2025 county tax roll
Counties
1
Johnson
Producing Wells
6
Matched to RRC records
Owner Location
Richardson
Texas
Where the value sits

Estimated Value by Well

The wells driving the estimated value of Sun Seong Heo and Dong G's mineral portfolio.

Top Wells by Estimated Value
GALLAGHER 6H
Johnson County · UPP OPERATING LLC
$260.21
GALLAGHER 3H
Johnson County · UPP OPERATING LLC
$102.53
GALLAGHER 5H
Johnson County · UPP OPERATING LLC
$46.15
GALLAGHER 2H
Johnson County · UPP OPERATING LLC
$36.86
GALLAGHER 1H
Johnson County · UPP OPERATING LLC
$35.33
GALLAGHER 4H
Johnson County · UPP OPERATING LLC
$0.88

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 Sun Seong Heo and Dong G, 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 Sun Seong Heo and Dong G

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

#PropertyCountyOperatorInterestTypeEst. Value
1GALLAGHER 6H
API 25133702
Johnson County, TXUPP OPERATING LLC0.001143R$260.21
2GALLAGHER 3H
API 25133495
Johnson County, TXUPP OPERATING LLC0.001143R$102.53
3GALLAGHER 5H
API 25133500
Johnson County, TXUPP OPERATING LLC0.001143R$46.15
4GALLAGHER 2H
API 25133477
Johnson County, TXUPP OPERATING LLC0.001143R$36.86
5GALLAGHER 1H
API 25133478
Johnson County, TXUPP OPERATING LLC0.001143R$35.33
6GALLAGHER 4H
API 25133499
Johnson County, TXUPP OPERATING LLC0.001143R$0.88
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