Texas oil lease
ProducingMCWILLIAMS-SOT-SARTAIN EF
McWilliams-Sot-Sartain Ef is an oil lease in Frio County, Texas, operated by Trailblazer Energy Resources,llc in the Briscoe Ranch (Eagleford) field.
1 well
- Operator
- Trailblazer Energy Resources,llc
- County
- Frio County
- RRC lease
- 01-19731
Is your check right?
Where it sits
This county
- Gas, last 12 months
- 28,613 mcf
- Oil in Jul 2026
- 441 bbl
Production by month
Oil output fell 8% 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 Jul 2026 the lease's gas goes to a processing plant instead of lease fuel
- Processing plant (3)
- Lease fuel (1)
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Processing plant (3)
90% · 28,886 mcf
Lease fuel (1)
10% · 3,224 mcf
Who has run this lease
The operator changed once, most recently in Sep 2023
- Trailblazer Energy Resources,llc Sep 2023 to now
- Virtex Operating Company, Inc. Jan 2020 to Aug 2023
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
1 well on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-163-34180 | 1H | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Shell Trading (Us) Company | Oil | Gathers | 100 | Sep 1, 2023 | – |
| Targa Frio Lasalle Pipeline LP | Casinghead gas | Buys | 60 | Sep 1, 2023 | – |
| Et Gathering & Processing LLC | Casinghead gas | Buys | 40 | Nov 1, 2023 | – |
| Targa Frio Lasalle Pipeline LP | Casinghead gas | Gathers | 60 | Sep 1, 2023 | – |
| Energy Transfer Company | Casinghead gas | Gathers | 40 | Sep 1, 2023 | – |
| Energy Transfer Company | Casinghead gas | Buys | 40 | Sep 1, 2023 | Nov 1, 2023 |
| Faraday Midstream Company | Casinghead gas | Gathers | 100 | Jul 5, 2019 | Sep 1, 2023 |
| Energy Transfer Company | Casinghead gas | Buys | 20 | Jan 1, 2023 | Sep 1, 2023 |
| Targa Midstream Services LLC | Casinghead gas | Buys | 80 | Jan 1, 2023 | Sep 1, 2023 |
| Eastex Crude Company, LLC | Oil | Gathers | 100 | Jan 1, 2023 | Sep 1, 2023 |
| Energy Transfer Company | Casinghead gas | Buys | 30 | Jul 5, 2019 | Jan 1, 2023 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
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 2026Trailblazer Energy | 441 | 360 | 2,431 | 2,059 | 0 | $80.46 | $2.89 |
| Jun 2026Trailblazer Energy | 468 | 665 | 372 | 0 | 0 | $84.81 | $3.15 |
| May 2026Trailblazer Energy | 699 | 497 | 2,463 | 2,091 | 0 | $102.13 | $2.94 |
| Apr 2026Trailblazer Energy | 280 | 334 | 0 | 0 | 0 | $100.32 | $2.77 |
| Mar 2026Trailblazer Energy | 522 | 684 | 3,294 | 2,922 | 0 | $91.38 | $3.04 |
| Feb 2026Trailblazer Energy | 453 | 343 | 2,078 | 1,940 | 0 | $64.51 | $3.62 |
| Jan 2026Trailblazer Energy | 528 | 526 | 3,097 | 2,895 | 0 | $60.04 | $7.72 |
| Dec 2025Trailblazer Energy | 533 | 525 | 3,099 | 2,897 | 0 | $57.97 | $4.26 |
| Nov 2025Trailblazer Energy | 523 | 529 | 2,720 | 2,509 | 0 | $60.06 | $3.79 |
| Oct 2025Trailblazer Energy | 465 | 507 | 2,711 | 2,496 | 0 | $60.89 | $3.19 |
| Sep 2025Trailblazer Energy | 508 | 514 | 3,416 | 3,201 | 0 | $63.96 | $2.97 |
| Aug 2025Trailblazer Energy | 534 | 519 | 2,932 | 2,649 | 0 | $64.86 | $2.91 |
| Jul 2025Trailblazer Energy | 543 | 690 | 3,497 | 3,227 | 0 | $68.39 | $3.20 |
| Jun 2025Trailblazer Energy | 582 | 347 | 3,111 | 2,832 | 0 | $68.17 | $3.02 |
| May 2025Trailblazer Energy | 488 | 503 | 3,038 | 2,845 | 0 | $62.17 | $3.12 |
| Apr 2025Trailblazer Energy | 648 | 688 | 2,814 | 2,589 | 0 | $63.54 | $3.42 |
| Mar 2025Trailblazer Energy | 283 | 328 | 3,066 | 2,832 | 0 | $68.24 | $4.12 |
| Feb 2025Trailblazer Energy | 511 | 526 | 3,380 | 3,164 | 0 | $71.53 | $4.19 |
| Jan 2025Trailblazer Energy | 577 | 517 | 4,207 | 3,686 | 0 | $75.74 | $4.13 |
| Dec 2024Trailblazer Energy | 517 | 512 | 2,854 | 2,333 | 0 | $70.12 | $3.01 |
| Nov 2024Trailblazer Energy | 596 | 692 | 2,117 | 1,960 | 0 | $69.95 | $2.12 |
| Oct 2024Trailblazer Energy | 582 | 512 | 2,360 | 2,050 | 0 | $71.99 | $2.20 |
| Sep 2024Trailblazer Energy | 524 | 521 | 1,901 | 1,654 | 0 | $70.24 | $2.28 |
| Aug 2024Trailblazer Energy | 652 | 665 | 825 | 760 | 0 | $76.68 | $1.99 |
| Jul 2024Trailblazer Energy | 639 | 688 | 670 | 589 | 0 | $81.80 | $2.07 |
| Jun 2024Trailblazer Energy | 680 | 688 | 782 | 688 | 0 | $79.77 | $2.54 |
| May 2024Trailblazer Energy | 631 | 499 | 629 | 562 | 0 | $80.02 | $2.12 |
| Apr 2024Trailblazer Energy | 631 | 688 | 704 | 646 | 0 | $85.35 | $1.60 |
| Mar 2024Trailblazer Energy | 585 | 530 | 543 | 494 | 0 | $81.28 | $1.49 |
| Feb 2024Trailblazer Energy | 540 | 562 | 930 | 930 | 0 | $77.25 | $1.72 |
| Jan 2024Trailblazer Energy | 829 | 742 | 1,695 | 1,425 | 0 | $74.15 | $3.18 |
| Dec 2023Trailblazer Energy | 341 | 566 | 1,860 | 1,739 | 0 | $71.90 | $2.52 |
| Nov 2023Trailblazer Energy | 861 | 733 | 1,221 | 1,069 | 0 | $77.69 | $2.71 |
| Oct 2023Trailblazer Energy | 630 | 544 | 1,209 | 1,056 | 0 | $85.64 | $2.98 |
| Sep 2023Trailblazer Energy | 610 | 749 | 1,144 | 1,024 | 0 | $89.43 | $2.64 |
| Aug 2023Virtex Operating | 770 | 665 | 2,028 | 2,028 | 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
Trailblazer Energy Resources,llc in Frio County
- LOTHRINGER
9,425 bbl
- HARLAN A
6,036 bbl
- MCGINTY SCHICK
7,310 bbl
- HARLAN, R. K.
6,033 bbl
- MCWILLIAMS-O'NEILL EF
4,329 bbl
- MCWILLIAMS HEIRS A
3,268 bbl
- GEORGE R. BROWN
3,127 bbl
- S BEEVER ET AL
1,374 bbl
- LITTLE-DUKES UNIT
1,074 bbl
- CARNES
52,409 mcf
Briscoe Ranch (Eagleford) field
- PILONCILLO
81,247 mcf
- ROGERS DENTONIO 31 UNIT
23,941 mcf
- STANLEY RANCH
111,304 mcf
- BRISCOE CATARINA NORTH
43,588 mcf
- HOWETT UNIT ZAV F
6,948 bbl
- BRISCOE CATARINA NORTH
49,942 mcf
- SANTA CRUZ REALTY, ET AL UNIT
6,859 bbl
- PERSIMMON UNIT
6,693 bbl
- HENRICHSON UNIT G DIM
6,674 bbl
- BRISCOE CHIP EAST RANCH
40,245 mcf
Leases within 10 km
- MCWILLIAMS-O'NEILL EF
4,329 bbl · 0 km
- MCWILLIAMS HEIRS A
3,268 bbl · 0.4 km
- O'NEILL-BIEL UNIT
1,540 bbl · 1.2 km
- MCWILLIAMS HEIRS A
929 bbl · 1.6 km
- SARTAIN ASSETS LTD OIL UNIT
865 bbl · 1.7 km
- CALVERT
2,148 bbl · 1.9 km
- CALVERT, J. H.
0 mcf · 2.5 km
- OPPENHEIMER A
781 bbl · 2.6 km
- CALVERT, J. H.
28,863 mcf · 2.9 km
- KIEFER
0 bbl · 3.1 km
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