Texas oil lease
Shut inHEARD BOWER CENTRAL WEST
Heard Bower Central West is an oil lease in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Austin Chalk) field.
1 well
- Operator
- Marathon Oil Ef LLC
- County
- Atascosa County
- RRC lease
- 02-11545
Is your check right?
Where it sits
This county
- Oil in Jul 2026
- 0 bbl
- Reporting since
- Jan 2020
Checks stopped on this lease?
- 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
No oil produced in the last 12 months
- Oil (bars)
- Gas (line)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
79% of the gas went to a processing plant in the 4 months reported
- Processing plant (3)
- Lease fuel (1)
- Flared (4)
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Processing plant (3)
79% · 891 mcf
Lease fuel (1)
20% · 224 mcf
Flared (4)
1.2% · 13 mcf
1.2% of the gas flared in the 4 months reported. No month above 3%.
Who has run this lease
The operator changed once, most recently in Nov 2021
- Marathon Oil Ef LLC Nov 2021 to now
- Teal Operating, LLC Jan 2020 to Oct 2021
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
1 well on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-013-35566 | 8AC | Shut-in |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Dcp Operating Company, LP | Oil | Gathers | 20 | Sep 1, 2022 | – |
| Eastex Crude Company, LLC | Oil | Gathers | 20 | Jan 1, 2023 | – |
| Energy Transfer Company | Oil | Gathers | 20 | Sep 1, 2022 | – |
| Pilot Travel Centers LLC | Oil | Gathers | 20 | Sep 1, 2022 | – |
| Shell Trading (Us) Company | Oil | Gathers | 20 | Sep 1, 2022 | – |
| Marathon Oil Ef LLC | Casinghead gas | Buys | 100 | Jul 1, 2022 | – |
| Marathon Oil Ef LLC | Casinghead gas | Gathers | 100 | Jul 1, 2022 | – |
| Eastex Crude Company | Oil | Gathers | 20 | Sep 1, 2022 | Jan 1, 2023 |
| Dcp Operating Company, LP | Oil | Gathers | 25 | Jul 1, 2022 | Sep 1, 2022 |
| Eastex Crude Company | Oil | Gathers | 25 | Nov 30, 2021 | Sep 1, 2022 |
| Shell Trading (Us) Company | Oil | Gathers | 25 | Jul 1, 2022 | Sep 1, 2022 |
| Truth Resources, L.p. | Oil | Gathers | 25 | Jul 1, 2022 | Sep 1, 2022 |
| Dcp Operating Company, LP | Casinghead gas | Gathers | 100 | Nov 30, 2021 | Jul 1, 2022 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
1,112.11 acres on the newest permit
- 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 |
|---|---|---|---|---|
| 42-013-35566 | 8AC | Jan 26, 2018 | Apr 3, 2018 | 1,112.11 |
What ConocoPhillips told investors it received
| Quarter | Oil$ per bbl | Gas$ per mcf | Gas liquids$ per bbl | Filing |
|---|---|---|---|---|
| Q2 2026 | $99.40 | $2.58 | $24.54 | SEC filing |
| Q1 2026 | $73.47 | $4.09 | $20.42 | SEC filing |
| Q3 2025 | $66.13 | $4.28 | $19.20 | SEC filing |
| Q2 2025 | $64.23 | $4.16 | $20.98 | SEC filing |
| Q1 2025 | $71.65 | $5.62 | $25.40 | SEC filing |
SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.
Estimate your royalty
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | Gas producedmcf | Gas soldmcf, codes 2+3 | Flaredmcf | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|---|---|---|
| Jul 2026Marathon Oil | 0 | 0 | 0 | 0 | 0 | $80.46 | $2.89 |
| Jun 2026Marathon Oil | 0 | 0 | 0 | 0 | 0 | $84.81 | $3.15 |
| May 2026Marathon Oil | 0 | 0 | 0 | 0 | 0 | $102.13 | $2.94 |
| Apr 2026Marathon Oil | 0 | 0 | 0 | 0 | 0 | $100.32 | $2.77 |
| Mar 2026Marathon Oil | 0 | 0 | 0 | 0 | 0 | $91.38 | $3.04 |
| Feb 2026Marathon Oil | 0 | 0 | 0 | 0 | 0 | $64.51 | $3.62 |
| Jan 2026Marathon Oil | 0 | 0 | 0 | 0 | 0 | $60.04 | $7.72 |
| Dec 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $57.97 | $4.26 |
| Nov 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $60.06 | $3.79 |
| Oct 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $60.89 | $3.19 |
| Sep 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $63.96 | $2.97 |
| Aug 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $64.86 | $2.91 |
| Jul 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $68.39 | $3.20 |
| Jun 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $68.17 | $3.02 |
| May 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $62.17 | $3.12 |
| Apr 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $63.54 | $3.42 |
| Mar 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $68.24 | $4.12 |
| Feb 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $71.53 | $4.19 |
| Jan 2025Marathon Oil | 0 | 0 | 0 | 0 | 0 | $75.74 | $4.13 |
| Dec 2024Marathon Oil | 0 | 0 | 0 | 0 | 0 | $70.12 | $3.01 |
| Nov 2024Marathon Oil | 0 | 0 | 0 | 0 | 0 | $69.95 | $2.12 |
| Oct 2024Marathon Oil | 0 | 0 | 0 | 0 | 0 | $71.99 | $2.20 |
| Sep 2024Marathon Oil | 0 | 0 | 0 | 0 | 0 | $70.24 | $2.28 |
| Aug 2024Marathon Oil | 0 | 0 | 0 | 0 | 0 | $76.68 | $1.99 |
| Jul 2024Marathon Oil | 0 | 0 | 0 | 0 | 0 | $81.80 | $2.07 |
| Jun 2024Marathon Oil | 0 | 0 | 0 | 0 | 0 | $79.77 | $2.54 |
| May 2024Marathon Oil | 0 | 0 | 447 | 247 | 11 | $80.02 | $2.12 |
| Apr 2024Marathon Oil | 0 | 0 | 0 | 0 | 0 | $85.35 | $1.60 |
| Mar 2024Marathon Oil | 0 | 1 | 0 | 0 | 0 | $81.28 | $1.49 |
| Feb 2024Marathon Oil | 173 | 179 | 88 | 83 | 0 | $77.25 | $1.72 |
| Jan 2024Marathon Oil | 770 | 763 | 231 | 216 | 1 | $74.15 | $3.18 |
| Dec 2023Marathon Oil | 0 | 0 | 0 | 0 | 0 | $71.90 | $2.52 |
| Nov 2023Marathon Oil | 0 | 0 | 0 | 0 | 0 | $77.69 | $2.71 |
| Oct 2023Marathon Oil | 0 | 0 | 0 | 0 | 0 | $85.64 | $2.98 |
| Sep 2023Marathon Oil | 0 | 1 | 0 | 0 | 0 | $89.43 | $2.64 |
| Aug 2023Marathon Oil | 172 | 176 | 362 | 345 | 1 | $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
Marathon Oil Ef LLC in Atascosa County
- HIERHOLZER-HENKE UNIT
696 mcf
- HENKE-WILHELM UNIT B
877 bbl
- FOUSHEE-HENKE UNIT
743 bbl
- HIERHOLZER UNIT
726 bbl
- CHAPMAN-PFEIL 2H PSA
568 bbl
- ESSE-SMITH RANCH UNIT B
287 bbl
- RETZLOFF-MAY UNIT
249 bbl
- MAY-CHAPMAN
127 mcf
- GIESE-HENKE UNIT
178 bbl
- MAY GIRLS-CHAPMAN UNIT
43 bbl
Sugarkane (Austin Chalk) field
- E. BUTLER A AC
1,421 mcf
- KRANER UNIT B AC
3,475 mcf
- CULBERSON-PATTESON UNIT AC
1,684 mcf
- SAN CHRISTOVAL RANCH UNIT G AC
3,118 mcf
- MOBIL UNIT D AC
1,053 mcf
- KOWALIK 228-1R AC
1,523 mcf
- LIEKE-RICHTER
125 bbl
- ESCONDIDO A B USW D
65 bbl
- MAY B UNIT AC
487 mcf
Leases within 10 km
- HEARD BOWER CENTRAL UNIT
7,867 bbl · 0.2 km
- HEARD BOWER WEST UNIT
15,296 bbl · 0.4 km
- GUAJILLO UNIT 13 SOUTH
52,067 bbl · 0.5 km
- HEARD BOWER EAST UNIT
8,104 bbl · 0.7 km
- GUAJILLO UNIT 14 SOUTH
31,277 bbl · 1 km
- GUAJILLO UNIT 15 SOUTH
72,845 bbl · 1.6 km
- GUAJILLO EAST
171,228 bbl · 2.1 km
- GUAJILLO UNIT 9 NORTH
21,269 bbl · 2.1 km
- 74 RANCH-GUAJILLO UNIT D
60,096 bbl · 2.2 km
- GUAJILLO UNIT 9 SOUTH
10,545 bbl · 2.2 km
Drilling permits within 10 km
WHITSETT-TAYLOR-MASS SA A #1
new drill · horizontal · Marathon Oil Ef LLC · Live Oak County · 6.9 km
Permit 0918390 · Sep 21, 2026
WHITSETT-TAYLOR-MASS SA C #1
new drill · horizontal · Marathon Oil Ef LLC · Live Oak County · 6.9 km
Permit 0918398 · Sep 21, 2026
WHITSETT-TAYLOR-MASS SA D #1
new drill · horizontal · Marathon Oil Ef LLC · Live Oak County · 6.9 km
Permit 0918399 · Sep 21, 2026
WHITSETT-TAYLOR-MASS SA B #1
new drill · horizontal · Marathon Oil Ef LLC · Live Oak County · 6.9 km
Permit 0918391 · Sep 21, 2026
RAFTER TWO A-B AW ULW A #6
new drill · horizontal · Burlington Resources O & G Co LP · Live Oak County · 7.7 km
Permit 0912477 · Jan 5, 2026