Texas oil lease · RRC district 08 · Lease 22478
ProducingERWIN
Erwin is an oil lease in Mitchell County, Texas, operated by Satanta Oil Company in the Westbrook field. The Railroad Commission shows 74 bbl of oil in the 12 months through Jul 2026.
Oil lease dossier · 4 wells
- Operator
- Satanta Oil Company
- County
- Mitchell County
- Field
- Westbrook
- RRC lease
- 08-22478
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Where it sits
This county
- Oil in Jul 2026
- 22 bbl
- Reporting to the state
- since Jan 2020
- Wells
- 4
- Data through
- Jul 2026
Production
Month by month, from the state record
Oil output fell 37% over the last 12 months
74 bbl in the 12 months through Jul 2026, against 117 bbl in the 12 months before.
- Oil (bars, left axis)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, oil lease 22478, district 08. Reported through Jul 2026. The state revises recent months.
Gas disposition
Where the gas went
No gas disposition reported for this lease
Operator history
Who has run this lease
Satanta Oil Company has reported this lease for the whole period
No change of operator in the months we hold.
- Satanta Oil Company 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 |
|---|---|---|---|
| 42-335-00620 | 2A | Active | – |
| 42-335-00838 | 1D | Active | – |
| 42-335-30120 | 1 | Active | – |
| 42-335-30153 | 3 | Active | – |
SourceTexas Railroad Commission Wellbore Query, district 08, lease 22478.
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 ERWIN 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 | WTI$ per bbl | Henry Hub$ per MMBtu |
|---|---|---|---|---|
| Jul 2026Satanta Oil | 22 | 162 | $80.46 | $2.89 |
| Jun 2026Satanta Oil | 4 | 0 | $84.81 | $3.15 |
| May 2026Satanta Oil | 1 | 0 | $102.13 | $2.94 |
| Apr 2026Satanta Oil | 4 | 0 | $100.32 | $2.77 |
| Mar 2026Satanta Oil | 18 | 0 | $91.38 | $3.04 |
| Feb 2026Satanta Oil | 12 | 0 | $64.51 | $3.62 |
| Jan 2026Satanta Oil | 1 | 0 | $60.04 | $7.72 |
| Dec 2025Satanta Oil | 1 | 0 | $57.97 | $4.26 |
| Nov 2025Satanta Oil | 4 | 0 | $60.06 | $3.79 |
| Oct 2025Satanta Oil | 2 | 0 | $60.89 | $3.19 |
| Sep 2025Satanta Oil | 2 | 0 | $63.96 | $2.97 |
| Aug 2025Satanta Oil | 3 | 0 | $64.86 | $2.91 |
| Jul 2025Satanta Oil | 4 | 0 | $68.39 | $3.20 |
| Jun 2025Satanta Oil | 2 | 145 | $68.17 | $3.02 |
| May 2025Satanta Oil | 1 | 0 | $62.17 | $3.12 |
| Apr 2025Satanta Oil | 0 | 0 | $63.54 | $3.42 |
| Mar 2025Satanta Oil | 5 | 0 | $68.24 | $4.12 |
| Feb 2025Satanta Oil | 68 | 0 | $71.53 | $4.19 |
| Jan 2025Satanta Oil | 26 | 0 | $75.74 | $4.13 |
| Dec 2024Satanta Oil | 2 | 0 | $70.12 | $3.01 |
| Nov 2024Satanta Oil | 2 | 0 | $69.95 | $2.12 |
| Oct 2024Satanta Oil | 2 | 0 | $71.99 | $2.20 |
| Sep 2024Satanta Oil | 3 | 0 | $70.24 | $2.28 |
| Aug 2024Satanta Oil | 2 | 0 | $76.68 | $1.99 |
| Jul 2024Satanta Oil | 8 | 0 | $81.80 | $2.07 |
| Jun 2024Satanta Oil | 7 | 0 | $79.77 | $2.54 |
| May 2024Satanta Oil | 3 | 0 | $80.02 | $2.12 |
| Apr 2024Satanta Oil | 4 | 0 | $85.35 | $1.60 |
| Mar 2024Satanta Oil | 4 | 0 | $81.28 | $1.49 |
| Feb 2024Satanta Oil | 8 | 0 | $77.25 | $1.72 |
| Jan 2024Satanta Oil | 4 | 0 | $74.15 | $3.18 |
| Dec 2023Satanta Oil | 1 | 0 | $71.90 | $2.52 |
| Nov 2023Satanta Oil | 2 | 0 | $77.69 | $2.71 |
| Oct 2023Satanta Oil | 5 | 0 | $85.64 | $2.98 |
| Sep 2023Satanta Oil | 12 | 0 | $89.43 | $2.64 |
| Aug 2023Satanta Oil | 15 | 0 | $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 ERWIN. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Satanta Oil Company.
- 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
Satanta Oil Company in Mitchell County
All Satanta Oil Company leases →Westbrook field
- NORTH WESTBROOK UNIT
507,258 bbl last 12 months
- WESTBROOK SOUTHEAST UNIT
202,036 bbl last 12 months
- WESTBROOK SOUTHWEST UNIT
128,123 bbl last 12 months
- BRENNAND, H. D. -B-
6,959 bbl last 12 months
- BRENNAND, H. D.
1,988 bbl last 12 months
New drilling permits in Mitchell County
We do not have coordinates for this lease, so these are the newest permits in its county.
FOSTER, MARY #22
reclass · Basa Resources, Inc. · Mitchell County
Permit 0918712 · Sep 21, 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 22478, district 08, 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.