Texas oil lease
Shut inWELDER, J.F. UNIT
Welder, J.f. Unit is an oil lease in San Patricio County, Texas, operated by Iron Jaw Operating LLC in the Odem (Massive Frio) field.
23 wells
- Operator
- Iron Jaw Operating LLC
- County
- San Patricio County
- Field
- Odem (Massive Frio)
- RRC lease
- 04-12145
Is your check right?
Where it sits
This county
- Oil in Jul 2026
- 0 bbl
- Reporting since
- Jan 2020
Checks stopped on this lease?
- Operator
Operator changed: Iron Jaw Operating LLC took over from 84 Energy LLC in Jul 2026.
- Sales
No sales reported for the last 12 months of state data (through Jul 2026).
SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.
See why checks stop on this leaseProduction by month
Oil output fell 99% over the last 12 months
- Oil (bars)
- Gas (line)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
Since Feb 2025 the lease's gas goes to a transmission line instead of lease fuel
- Transmission line (2)
- Lease fuel (1)
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Transmission line (2)
65% · 16,032 mcf
Lease fuel (1)
35% · 8,605 mcf
Who has run this lease
The operator changed 3 times, most recently in Jul 2026
- Iron Jaw Operating LLC Jul 2026 to now
- 84 Energy LLC Jan 2025 to Jun 2026
- GTG Operating, LLC Aug 2020 to Dec 2024
- Wagner Oil Company Jan 2020 to Jul 2020
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
23 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-409-03761 | B 11 | Active |
| 42-409-03791 | B 8 | Active |
| 42-409-03814 | 13 | Active |
| 42-409-30082 | C 17 | Active |
| 42-409-30083 | C 18 | Active |
| 42-409-30084 | C 16 | Active |
| 42-409-30093 | C 21 | Shut-in |
| 42-409-30094 | C 19 | Shut-in |
| 42-409-30099 | C 22 | Active |
| 42-409-30113 | C 26 | Active |
| 42-409-30115 | C 24 | Active |
| 42-409-30169 | B 22 | Active |
| 42-409-30191 | C 30 | Active |
| 42-409-30204 | C 31 | Active |
| 42-409-30219 | C 32 | Active |
| 42-409-30244 | C 34 | Shut-in |
| 42-409-30327 | C 39 | Active |
| 42-409-30336 | C 41 | Active |
| 42-409-30340 | C 40 | Shut-in |
| 42-409-30343 | C 14 | Active |
| 42-409-30378 | B 18 | Active |
| 42-409-30399 | B 23 | Active |
| 42-409-30462 | C 49 | Shut-in |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Gulfmark Energy, Inc. | Oil | Gathers | 100 | Apr 1, 2020 | – |
| Conocophillips Company | Casinghead gas | Buys | 100 | Aug 1, 2020 | – |
| Tennessee Gas Pipeline Co,l.l.c. | Casinghead gas | Gathers | 100 | Apr 1, 2013 | – |
| Wagner Oil Company | Casinghead gas | Buys | 100 | May 1, 2020 | Aug 1, 2020 |
| Conocophillips Company | Casinghead gas | Buys | 100 | Apr 1, 2020 | May 1, 2020 |
| Wagner Oil Company | Casinghead gas | Buys | 100 | Apr 1, 2014 | Apr 1, 2020 |
| Sunoco Ptnrs. Mktg.&terminals LP | Oil | Gathers | 100 | Dec 1, 2019 | Apr 1, 2020 |
| Flint Hills Resources, LP | Oil | Gathers | 100 | Nov 1, 2016 | Dec 1, 2019 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
3,765 acres on the newest permit
- Good to know
The wells on this lease state different acreage
The permits state between 1,305 and 3,765 acres. Use the acres from your own division order for the well you are paid on.
- Good to know
30 wells are listed on this lease
Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.
- Worth asking
A substandard-acreage flag is in the permit records
The RRC permit records include a substandard-acreage flag. Ask which acreage applies to your well and how it was used in your decimal.
- Worth asking
A Rule 37 case is listed
The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-409-30082 | C 17 | Mar 9, 2005 | Jan 25, 1974 | 3,765 |
| 42-409-30062 | C 15 F | Jan 22, 2002 | Feb 11, 2000 | 2,010 |
| 42-409-30244 | C 34 | Nov 13, 2001 | Mar 11, 2004 | 2,010 |
| 42-409-03814 | 13 | Oct 22, 1997 | Jul 16, 1997 | 3,765 |
| 42-409-03814 | B 13 | Oct 22, 1997 | Oct 14, 1972 | 3,765 |
| 42-409-03814 | B 13A | Oct 22, 1997 | Jul 16, 1997 | 3,765 |
| 42-409-30093 | C 21 | Sep 30, 1997 | Dec 1, 1995 | 1,305 |
| 42-409-30204 | C 31 | Jan 17, 1996 | Aug 25, 1971 | 1,305 |
| 42-409-03791 | B 8 | Oct 3, 1995 | Apr 3, 1995 | 1,305 |
| 42-409-30099 | C 22 | Jul 14, 1995 | Jun 1, 1993 | 3,765 |
| 42-409-30152 | C 27 | Dec 14, 1992 | Nov 24, 1992 | 3,765 |
| 42-409-30111 | C 23 | Nov 12, 1992 | Feb 25, 1984 | 3,765 |
Estimate your royalty
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | Gas producedmcf | Gas soldmcf, codes 2+3 | Flaredmcf | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|---|---|---|
| Jul 2026Iron Jaw | 0 | 0 | 0 | 0 | 0 | $80.46 | $2.89 |
| Jun 202684 Energy | 0 | 0 | 0 | 0 | 0 | $84.81 | $3.15 |
| May 202684 Energy | 0 | 0 | 0 | 0 | 0 | $102.13 | $2.94 |
| Apr 202684 Energy | 0 | 0 | 0 | 0 | 0 | $100.32 | $2.77 |
| Mar 202684 Energy | 0 | 0 | 0 | 0 | 0 | $91.38 | $3.04 |
| Feb 202684 Energy | 0 | 0 | 0 | 0 | 0 | $64.51 | $3.62 |
| Jan 202684 Energy | 0 | 0 | 0 | 0 | 0 | $60.04 | $7.72 |
| Dec 202584 Energy | 0 | 0 | 0 | 0 | 0 | $57.97 | $4.26 |
| Nov 202584 Energy | 0 | 0 | 0 | 0 | 0 | $60.06 | $3.79 |
| Oct 202584 Energy | 0 | 0 | 0 | 0 | 0 | $60.89 | $3.19 |
| Sep 202584 Energy | 0 | 0 | 0 | 0 | 0 | $63.96 | $2.97 |
| Aug 202584 Energy | 20 | 0 | 0 | 0 | 0 | $64.86 | $2.91 |
| Jul 202584 Energy | 0 | 0 | 0 | 0 | 0 | $68.39 | $3.20 |
| Jun 202584 Energy | 55 | 0 | 0 | 0 | 0 | $68.17 | $3.02 |
| May 202584 Energy | 0 | 0 | 0 | 0 | 0 | $62.17 | $3.12 |
| Apr 202584 Energy | 0 | 0 | 0 | 0 | 0 | $63.54 | $3.42 |
| Mar 202584 Energy | 0 | 0 | 0 | 0 | 0 | $68.24 | $4.12 |
| Feb 202584 Energy | 30 | 71 | 1,569 | 1,569 | 0 | $71.53 | $4.19 |
| Jan 202584 Energy | 201 | 1,257 | 2,863 | 0 | 0 | $75.74 | $4.13 |
| Dec 2024GTG Operating, | 226 | 426 | 1,702 | 1,224 | 0 | $70.12 | $3.01 |
| Nov 2024GTG Operating, | 236 | 321 | 2,006 | 1,292 | 0 | $69.95 | $2.12 |
| Oct 2024GTG Operating, | 212 | 211 | 2,115 | 1,264 | 0 | $71.99 | $2.20 |
| Sep 2024GTG Operating, | 248 | 303 | 1,601 | 1,021 | 0 | $70.24 | $2.28 |
| Aug 2024GTG Operating, | 201 | 118 | 2,062 | 1,674 | 0 | $76.68 | $1.99 |
| Jul 2024GTG Operating, | 538 | 286 | 2,827 | 1,435 | 0 | $81.80 | $2.07 |
| Jun 2024GTG Operating, | 238 | 236 | 1,449 | 1,071 | 0 | $79.77 | $2.54 |
| May 2024GTG Operating, | 308 | 233 | 3,248 | 2,554 | 0 | $80.02 | $2.12 |
| Apr 2024GTG Operating, | 296 | 226 | 1,626 | 1,543 | 0 | $85.35 | $1.60 |
| Mar 2024GTG Operating, | 193 | 252 | 1,569 | 1,385 | 0 | $81.28 | $1.49 |
| Feb 2024GTG Operating, | 213 | 227 | 1,748 | 1,207 | 0 | $77.25 | $1.72 |
| Jan 2024GTG Operating, | 214 | 216 | 2,148 | 1,207 | 0 | $74.15 | $3.18 |
| Dec 2023GTG Operating, | 345 | 338 | 2,381 | 1,870 | 0 | $71.90 | $2.52 |
| Nov 2023GTG Operating, | 305 | 235 | 1,619 | 1,041 | 0 | $77.69 | $2.71 |
| Oct 2023GTG Operating, | 316 | 224 | 1,501 | 928 | 0 | $85.64 | $2.98 |
| Sep 2023GTG Operating, | 242 | 342 | 1,952 | 1,125 | 0 | $89.43 | $2.64 |
| Aug 2023GTG Operating, | 228 | 214 | 0 | 0 | 0 | $81.39 | $2.58 |
SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.
How to check your stub against this lease Checks stopped on this lease? See the likely reasonsDo your checks match this lease?
Nearby
This lease belongs to
Iron Jaw Operating LLC in San Patricio County
No other producing leases from this operator in this county are in our data yet.
Odem (Massive Frio) field
No other producing leases in this field are in our data yet.
Leases within 10 km
- WELDER, J.F. UNIT
0 mcf · 0.3 km
- WELDER, J. F., UNIT
20 bbl · 0.6 km
- WELDER, J. F. UNIT
0 mcf · 0.9 km
- WELDER, J. F.
20 bbl · 1 km
- BURROWS, J.C. & J.S.
0 bbl · 1.1 km
- BOMER, E. T.
0 mcf · 1.3 km
- WELDER, J.F. UNIT
20 bbl · 1.4 km
- COX
44 bbl · 1.4 km
- BURROWS, J. C. & J. S.
0 mcf · 1.5 km
- J F WELDER HEIRS
0 mcf · 1.5 km
Drilling permits within 10 km
BARRETT-BERRY #1
re-entry · Aurora Resources Corporation · San Patricio County · 7.6 km
Permit 0917216 · Jul 20, 2026
GULLEY #1
new drill · Ozona CCS LLC · San Patricio County · 5.3 km
Permit 0910790 · Oct 1, 2025
BERRY RANCH #1
new drill · Aurora Resources Corporation · San Patricio County · 7.5 km
Permit 0909764 · Sep 5, 2025
NEY #1
new drill · Paloma Operating, LLC · San Patricio County · 3.6 km
Permit 0909503 · Aug 25, 2025
MILLER UNIT #4U
recompletion · Harris Energy Services, LLC · Nueces County · 6.5 km
Permit 0907748 · May 19, 2025