Texas oil lease · RRC district 01 · Lease 16354
ProducingWILHELM-SMITH UNIT A
Wilhelm-Smith Unit A is an oil lease in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field. The Railroad Commission shows 2,287 bbl of oil in the 12 months through Jul 2026.
Oil lease dossier · 4 wells
- Operator
- Marathon Oil Ef LLC
- County
- Atascosa County
- RRC lease
- 01-16354
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Where it sits
This county
- Gas, last 12 months
- 2,041 mcf
- Oil in Jul 2026
- 197 bbl
- Reporting to the state
- since Jan 2020
- Wells
- 4
Production
Month by month, from the state record
Oil output fell 47% over the last 12 months
2,287 bbl in the 12 months through Jul 2026, against 4,333 bbl in the 12 months before.
- Oil (bars, left axis)
- Gas (line, right axis)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, oil lease 16354, district 01. Reported through Jul 2026. The state revises recent months.
Gas disposition
Where the gas went
Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuel
Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not. Flaring peaked at 9.4% of the gas in Mar 2025.
- Processing plant (3)
- Lease fuel (1)
- Flared (4)
SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 16354, district 01. Reported through Jul 2026.
Processing plant (3)
Sent to a gas plant that pulls out natural gas liquids. Your statement should show plant products, and may show processing fees.
Lease fuel (1)
Burned to run equipment on the lease. Not sold, so it pays no royalty. A few percent is normal.
Flared (4)
Burned off or vented, not sold. It pays no royalty. More than 3% in a month is worth watching.
Over the last 12 months, 1.9% of the gas was flared. 17 months went above 3%, which we mark in the ledger below.
Operator history
Who has run this lease
Marathon Oil Ef LLC has reported this lease for the whole period
No change of operator in the months we hold.
- Marathon Oil Ef LLC Jan 2020 to now
SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.
Wells
4 wells on this lease
| API number | Well no. | Status | Total depthft |
|---|---|---|---|
| 42-013-34561 | 1H | Active | – |
| 42-013-34562 | 2H | Active | – |
| 42-013-34563 | 3H | Shut-in | – |
| 42-013-34564 | 4H | Active | – |
SourceTexas Railroad Commission Wellbore Query, district 01, lease 16354.
Who buys and gathers
Who moves and buys this lease's production
Oil
Endeavor Crude, LLC, Enterprise Crude Oil LLC, Genesis Crude Oil, L.p. and Statewide Crude Inc. gather it.
Endeavor Crude, LLC gathers it: 40% of it, on the list since Jan 1, 2024 · Enterprise Crude Oil LLC gathers it: 20% of it, on the list since Jan 1, 2024 · Genesis Crude Oil, L.p. gathers it: 20% of it, on the list since Jan 1, 2024 · Statewide Crude Inc. gathers it: 20% of it, on the list since Jan 1, 2024
Gas from oil wells
Marathon Oil Ef LLC buys and gathers it.
Marathon Oil Ef LLC buys it: 100% of it, on the list since Dec 1, 2012 · Marathon Oil Ef LLC gathers it: 100% of it, on the list since Dec 1, 2012
Companies that used to be listed: Dks Transport LLC (gathers it, until Jan 1, 2024); Pilot Travel Centers LLC (gathers it, until Jan 1, 2024); Reynolds Energy Transport LLC (gathers it, until Jan 1, 2024); Statewide Crude Inc. (gathers it, until Jan 1, 2024); Gulfmark Energy, Inc. (gathers it, until Jul 1, 2022); Statewide Crude Inc. (gathers it, until Jul 1, 2022).
SourceRailroad Commission of Texas, Form P-4 file, dated Sep 24, 2026 (source). A listed company is authorised to move or buy the production; the state does not say what it paid.
Unit and wells
481.99 acres on the newest permit
- Wells on the permits
- 44 not plugged
- Horizontal
- 4
- First completion
- Aug 30, 2012
- Latest permit
- Jul 17, 2012
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-013-34562 | 2H | Jul 17, 2012 | Dec 1, 2012 | 481.99 |
| 42-013-34563 | 3H | Jul 17, 2012 | Nov 30, 2012 | 481.99 |
| 42-013-34564 | 4H | Jul 17, 2012 | Dec 1, 2012 | 481.99 |
| 42-013-34561 | 1H | Jul 14, 2012 | Aug 30, 2012 | 481.99 |
What the operator reported
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 | $25.40 | SEC filing |
SourceConocoPhillips quarterly reports on SEC EDGAR, prices before hedging where the company states both. Read by machine from each filing’s tables; the link opens the filing so you can check the figure.
Estimator
Estimate your royalty for this lease
Estimator
What could your check be?
Your decimal interest is the small number on your division order that says what share of the whole lease (8/8ths) is yours. Type it in and we apply it to what the state says WILHELM-SMITH UNIT A sold each month.
For example 0.00097656, or a fraction like 1/1024.
Dollars per barrel. Your statements show the gap your operator uses. Leave 0 to price oil at WTI.
Your estimate appears here
An estimate, not your check
Ledger
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | Gas producedmcf | Gas soldmcf, codes 2+3 | Flaredmcf, code 4 | WTI$ per bbl | Henry Hub$ per MMBtu |
|---|---|---|---|---|---|---|---|
| Jul 2026Marathon Oil | 197 | 190 | 544 | 400 | 7 | $80.46 | $2.89 |
| Jun 2026Marathon Oil | 0 | 4 | 0 | 0 | 0 | $84.81 | $3.15 |
| May 2026Marathon Oil | 168 | 169 | 369 | 275 | 7 | $102.13 | $2.94 |
| Apr 2026Marathon Oil | 109 | 105 | 17 | 13 | 0 | $100.32 | $2.77 |
| Mar 2026Marathon Oil | 67 | 66 | 10 | 8 | 0 | $91.38 | $3.04 |
| Feb 2026Marathon Oil | 0 | 0 | 0 | 0 | 0 | $64.51 | $3.62 |
| Jan 2026Marathon Oil | 0 | 1 | 0 | 0 | 0 | $60.04 | $7.72 |
| Dec 2025Marathon Oil | 54 | 57 | 5 | 4 | 0 | $57.97 | $4.26 |
| Nov 2025Marathon Oil | 219 | 225 | 30 | 22 | 1 | $60.06 | $3.79 |
| Oct 2025Marathon Oil | 386 | 386 | 139 | 99 | 4 | $60.89 | $3.19 |
| Sep 2025Marathon Oil | 436 | 437 | 432 | 320 | 8 | $63.96 | $2.97 |
| Aug 2025Marathon Oil | 651 | 642 | 495 | 381 | 8 | $64.86 | $2.91 |
| Jul 2025Marathon Oil | 88 | 87 | 12 | 9 | 0 | $68.39 | $3.20 |
| Jun 2025Marathon Oil | 178 | 187 | 45 | 31 | 3 | $68.17 | $3.02 |
| May 2025Marathon Oil | 444 | 446 | 174 | 93 | 5 | $62.17 | $3.12 |
| Apr 2025Marathon Oil | 436 | 428 | 395 | 242 | 22 | $63.54 | $3.42 |
| Mar 2025Marathon Oil | 148 | 150 | 53 | 28 | 5 | $68.24 | $4.12 |
| Feb 2025Marathon Oil | 305 | 306 | 249 | 136 | 13 | $71.53 | $4.19 |
| Jan 2025Marathon Oil | 482 | 483 | 344 | 190 | 19 | $75.74 | $4.13 |
| Dec 2024Marathon Oil | 458 | 459 | 454 | 274 | 11 | $70.12 | $3.01 |
| Nov 2024Marathon Oil | 895 | 892 | 1,009 | 614 | 32 | $69.95 | $2.12 |
| Oct 2024Marathon Oil | 796 | 790 | 886 | 557 | 51 | $71.99 | $2.20 |
| Sep 2024Marathon Oil | 0 | 1 | 0 | 0 | 0 | $70.24 | $2.28 |
| Aug 2024Marathon Oil | 103 | 105 | 17 | 10 | 1 | $76.68 | $1.99 |
| Jul 2024Marathon Oil | 210 | 216 | 1,095 | 758 | 56 | $81.80 | $2.07 |
| Jun 2024Marathon Oil | 721 | 738 | 1,185 | 844 | 49 | $79.77 | $2.54 |
| May 2024Marathon Oil | 1,677 | 1,697 | 1,585 | 1,022 | 61 | $80.02 | $2.12 |
| Apr 2024Marathon Oil | 1,972 | 1,976 | 2,218 | 1,442 | 65 | $85.35 | $1.60 |
| Mar 2024Marathon Oil | 1,883 | 1,862 | 4,539 | 2,906 | 140 | $81.28 | $1.49 |
| Feb 2024Marathon Oil | 1,392 | 1,382 | 1,039 | 881 | 12 | $77.25 | $1.72 |
| Jan 2024Marathon Oil | 1,449 | 1,464 | 995 | 856 | 17 | $74.15 | $3.18 |
| Dec 2023Marathon Oil | 1,586 | 1,579 | 1,424 | 814 | 41 | $71.90 | $2.52 |
| Nov 2023Marathon Oil | 1,239 | 1,235 | 1,473 | 610 | 100 | $77.69 | $2.71 |
| Oct 2023Marathon Oil | 1,477 | 1,493 | 2,247 | 898 | 79 | $85.64 | $2.98 |
| Sep 2023Marathon Oil | 1,791 | 1,790 | 3,911 | 2,268 | 222 | $89.43 | $2.64 |
| Aug 2023Marathon Oil | 1,588 | 1,574 | 5,861 | 3,787 | 326 | $81.39 | $2.58 |
No report filed More than 3% of gas flared
SourceVolumes: Texas Railroad Commission Production Data Query, reported through Jul 2026. Prices: EIA WTI Cushing spot and Henry Hub spot, monthly, through Aug 2026. “Gas sold” is gas sent to a transmission line (code 2) or a plant (code 3).
Check your statements
Do your checks match this lease?
Upload your statements for WILHELM-SMITH UNIT A. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Marathon Oil Ef LLC.
- A month that was never paid
- Your share of the barrels and mcf
- The price against WTI and Henry Hub
- Fees taken on gas
- Late payment interest
Around this lease
Walk the neighborhood
This lease belongs to
Marathon Oil Ef LLC in Atascosa County
- MIDDLE MCCOWEN
3,408,305 bbl last 12 months
- MCS FOUNDATION UNIT
384,325 bbl last 12 months
- GRIFFIN-KRUEGER SA4
182,123 bbl last 12 months
- HIERHOLZER RETZLOFF-MCMAHON SA1
174,826 bbl last 12 months
- GUAJILLO EAST
171,228 bbl last 12 months
Eagleville (Eagle Ford-1) field
- MIDDLE MCCOWEN
3,408,305 bbl last 12 months
- WITHERSPOON
1,127,992 bbl last 12 months
- IRVIN MINERALS NORTH
966,894 bbl last 12 months
- BARNHART (EF)
994,496 bbl last 12 months
- JAMBERS
884,259 bbl last 12 months
Leases within 10 km
Found by the location of their wells.
- HENKE-WILHELM UNIT A
26,444 bbl last 12 months · 0.3 km away
- W. SMITH B-A-MCS PSA
2,881 bbl last 12 months · 0.3 km away
- GIESE UNIT
33,233 bbl last 12 months · 0.6 km away
- WILHELM SMITH UNIT B
26,361 bbl last 12 months · 0.7 km away
- HENKE UNIT A
13,723 bbl last 12 months · 1.3 km away
Drilling permits within 10 km
FOUSHEE-WRIGHT KEATHLEY SA6 #6H
new drill · horizontal · Marathon Oil Ef LLC · Atascosa County · 5.2 km away
Permit 0915293 · May 6, 2026
FOUSHEE-WRIGHT KEATHLEY SA5 #5H
new drill · horizontal · Marathon Oil Ef LLC · Atascosa County · 5.2 km away
Permit 0915292 · May 6, 2026
MAUCH-WRIGHT HENKE SA1 #1H
new drill · horizontal · Marathon Oil Ef LLC · Atascosa County · 5.2 km away
Permit 0915290 · May 4, 2026
MAUCH-WRIGHT HENKE SA2 #2H
new drill · horizontal · Marathon Oil Ef LLC · Atascosa County · 5.2 km away
Permit 0915291 · May 4, 2026
GUERRA-KUNDE USW D #1
new drill · horizontal · Burlington Resources O & G Co LP · Live Oak County · 9 km away
Permit 0913072 · Jan 27, 2026
How to read this page
Questions owners ask
What is a decimal interest?
It is your share of the whole lease, written as a decimal. A 1/4 royalty on 5 net acres in a 1,280-acre unit is 1/4 × 5 ÷ 1,280 = 0.00097656. Your division order states yours.
How do I use this page to check a royalty check?
Take the “Oil sold” volume for the month the check covers and multiply it by your decimal. The answer should match the barrels on your statement. If it does not, upload the statement and we will show where the two differ.
Why is the newest month Jul 2026?
The Railroad Commission publishes production two to three months after the fact and revises recent months. We re-pull the latest three months on every update.
Does this page show what my check should be?
No. It shows what the state recorded. Prices, fees and taxes depend on your lease and on what your operator gets for the oil and gas. The estimator gives a ceiling to compare against.
Sources and method
Where these numbers come from
- Production and disposition by month: Texas Railroad Commission Production Data Query, oil lease 16354, district 01, reported through Jul 2026.
- Wells: Texas Railroad Commission Wellbore Query.
- Prices: U.S. Energy Information Administration, WTI Cushing spot and Henry Hub spot, monthly.
- Page updated Sep 28, 2026.
We show the state’s numbers as filed. Where the state has no report for a month, we say so instead of guessing.