Texas oil lease
ProducingJ.M. O'BRIEN JLB
J.m. O'Brien JLB is an oil lease in Refugio County, Texas, operated by South Texas Operating Company in the Greta (4400) field.
1 well
- Operator
- South Texas Operating Company
- County
- Refugio County
- Field
- Greta (4400)
- RRC lease
- 02-12584
Is your check right?
Where it sits
This county
- Oil in Jul 2026
- 883 bbl
- Reporting since
- Dec 2022
Production by month
Oil output fell 30% over the last 12 months
- Oil (bars)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
No gas disposition reported for this lease
Who has run this lease
The operator changed once, most recently in Jul 2023
- South Texas Operating Company Jul 2023 to now
- Jura Energy Operating LLC Dec 2022 to Jun 2023
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
1 well on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-391-33276 | 1H | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From |
|---|---|---|---|---|
| Gulfmark Energy, Inc. | Oil | Gathers | 100 | Jul 1, 2023 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
Estimate your royalty
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|
| Jul 2026South Texas | 883 | 778 | $80.46 | $2.89 |
| Jun 2026South Texas | 593 | 626 | $84.81 | $3.15 |
| May 2026South Texas | 839 | 793 | $102.13 | $2.94 |
| Apr 2026South Texas | 132 | 159 | $100.32 | $2.77 |
| Mar 2026South Texas | 687 | 765 | $91.38 | $3.04 |
| Feb 2026South Texas | 851 | 957 | $64.51 | $3.62 |
| Jan 2026South Texas | 716 | 811 | $60.04 | $7.72 |
| Dec 2025South Texas | 864 | 633 | $57.97 | $4.26 |
| Nov 2025South Texas | 910 | 973 | $60.06 | $3.79 |
| Oct 2025South Texas | 870 | 797 | $60.89 | $3.19 |
| Sep 2025South Texas | 857 | 951 | $63.96 | $2.97 |
| Aug 2025South Texas | 691 | 621 | $64.86 | $2.91 |
| Jul 2025South Texas | 600 | 652 | $68.39 | $3.20 |
| Jun 2025South Texas | 1,199 | 1,113 | $68.17 | $3.02 |
| May 2025South Texas | 846 | 785 | $62.17 | $3.12 |
| Apr 2025South Texas | 732 | 943 | $63.54 | $3.42 |
| Mar 2025South Texas | 985 | 824 | $68.24 | $4.12 |
| Feb 2025South Texas | 920 | 975 | $71.53 | $4.19 |
| Jan 2025South Texas | 1,091 | 1,092 | $75.74 | $4.13 |
| Dec 2024South Texas | 1,153 | 1,138 | $70.12 | $3.01 |
| Nov 2024South Texas | 1,161 | 1,267 | $69.95 | $2.12 |
| Oct 2024South Texas | 1,320 | 1,279 | $71.99 | $2.20 |
| Sep 2024South Texas | 1,298 | 1,289 | $70.24 | $2.28 |
| Aug 2024South Texas | 1,476 | 1,604 | $76.68 | $1.99 |
| Jul 2024South Texas | 1,193 | 986 | $81.80 | $2.07 |
| Jun 2024South Texas | 1,045 | 1,110 | $79.77 | $2.54 |
| May 2024South Texas | 954 | 800 | $80.02 | $2.12 |
| Apr 2024South Texas | 88 | 135 | $85.35 | $1.60 |
| Mar 2024South Texas | 1,137 | 1,263 | $81.28 | $1.49 |
| Feb 2024South Texas | 1,018 | 1,289 | $77.25 | $1.72 |
| Jan 2024South Texas | 1,077 | 975 | $74.15 | $3.18 |
| Dec 2023South Texas | 1,342 | 1,447 | $71.90 | $2.52 |
| Nov 2023South Texas | 1,641 | 1,436 | $77.69 | $2.71 |
| Oct 2023South Texas | 2,015 | 1,770 | $85.64 | $2.98 |
| Sep 2023South Texas | 1,821 | 1,747 | $89.43 | $2.64 |
| Aug 2023South Texas | 1,830 | 2,381 | $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
South Texas Operating Company in Refugio County
- OBRIEN, J. M.
5,006 bbl
Greta (4400) field
- HEARD, J. F. B.
13,709 bbl
- HEARD, FANNIE V. W.
9,194 bbl
- HEARD, F. V. W.
6,857 bbl
- O'CONNOR
4,364 bbl
- O'BRIEN, J. M.
4,353 bbl
- HEARD, J. F. B.- TEX
3,066 bbl
- O'CONNOR, THOMAS
2,485 bbl
- J.F.B. HEARD-ARCO
2,232 bbl
- OCONNOR, THOS.
2,063 bbl
Leases within 10 km
- O'BRIEN, J.M. D&E "E"
0 mcf · 0.4 km
- THOMAS O'CONNOR
0 mcf · 0.4 km
- O'BRIEN, J.M. J&L "L"
0 mcf · 0.5 km
- OBRIEN, J. M.
0 bbl · 0.6 km
- O'BRIEN, J. M. "E"
2,669 mcf · 0.6 km
- J. J. O'BRIEN
0 mcf · 0.6 km
- OBRIEN, J. J., -A-
0 bbl · 0.6 km
- OCONNOR, THOMAS
2,991 bbl · 0.6 km
- O'CONNOR, TOM
0 mcf · 0.7 km
- O'CONNOR, TOM
0 mcf · 0.7 km
Drilling permits within 10 km
HEARD, FANNIE V.W. MRS. #14
recompletion · Hilcorp Energy Company · Refugio County · 4.5 km
Permit 0918764 · Sep 25, 2026
OCONNOR THOMAS C #14
recompletion · Hilcorp Energy Company · Refugio County · 5.3 km
Permit 0918533 · Sep 14, 2026
O'CONNOR, THOMAS -C- #4G
recompletion · Hilcorp Energy Company · Refugio County · 4.3 km
Permit 0917064 · Jul 22, 2026
TOM O'CONNOR (5800 SD) FLD. UNIT #125
new drill · Hilcorp Energy Company · Refugio County · 5.9 km
Permit 0915665 · Jun 1, 2026
TOM OCONNOR (5800SD) FLD. UNIT #Q106E
recompletion · Hilcorp Energy Company · Refugio County · 6.8 km
Permit 0910354 · Sep 18, 2025