Texas oil lease · RRC district 7C · Lease 16671
Shut inHALFMANN
Halfmann is an oil lease in Tom Green County, Texas, operated by Star Production, Inc. in the Buena Ventura (Cisco) field.
Oil lease dossier · 1 well
- Operator
- Star Production, Inc.
- County
- Tom Green County
- RRC lease
- 7C-16671
Own a share of this lease?
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Upload a check stub or a phone photo. We compare every month with the state numbers on this page.
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Where it sits
This county
- Oil in Jul 2026
- 0 bbl
- Reporting to the state
- since Jan 2020
- Wells
- 1
- Data through
- Jul 2026
Production
Month by month, from the state record
No production to chart
Gas disposition
Where the gas went
No gas disposition reported for this lease
Operator history
Who has run this lease
Star Production, Inc. has reported this lease for the whole period
No change of operator in the months we hold.
- Star Production, Inc. Jan 2020 to now
SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.
Wells
1 well on this lease
| API number | Well no. | Status | Total depthft |
|---|---|---|---|
| 42-451-32592 | 1 | Shut-in | – |
SourceTexas Railroad Commission Wellbore Query, district 7C, lease 16671.
Who buys and gathers
Who moves and buys this lease's production
Oil
Transoil Marketing, LLC gathers it.
100% of it, on the list since Apr 1, 2012
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
227.58 acres on the newest permit
- Wells on the permits
- 11 not plugged
- Horizontal
- 0
- First completion
- Aug 5, 2008
- Latest permit
- Jun 24, 2008
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-451-32592 | 1 | Jun 24, 2008 | Aug 5, 2008 | 227.58 |
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 HALFMANN sold each month.
For example 0.00097656, or a fraction like 1/1024.
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 2026Star Production, | 0 | 0 | $80.46 | $2.89 |
| Jun 2026Star Production, | 0 | 0 | $84.81 | $3.15 |
| May 2026Star Production, | 0 | 0 | $102.13 | $2.94 |
| Apr 2026Star Production, | 0 | 0 | $100.32 | $2.77 |
| Mar 2026Star Production, | 0 | 0 | $91.38 | $3.04 |
| Feb 2026Star Production, | 0 | 0 | $64.51 | $3.62 |
| Jan 2026Star Production, | 0 | 0 | $60.04 | $7.72 |
| Dec 2025Star Production, | 0 | 0 | $57.97 | $4.26 |
| Nov 2025Star Production, | 0 | 0 | $60.06 | $3.79 |
| Oct 2025Star Production, | 0 | 0 | $60.89 | $3.19 |
| Sep 2025Star Production, | 0 | 0 | $63.96 | $2.97 |
| Aug 2025Star Production, | 0 | 0 | $64.86 | $2.91 |
| Jul 2025Star Production, | 0 | 0 | $68.39 | $3.20 |
| Jun 2025Star Production, | 0 | 0 | $68.17 | $3.02 |
| May 2025Star Production, | 0 | 0 | $62.17 | $3.12 |
| Apr 2025Star Production, | 0 | 0 | $63.54 | $3.42 |
| Mar 2025Star Production, | 0 | 0 | $68.24 | $4.12 |
| Feb 2025Star Production, | 0 | 0 | $71.53 | $4.19 |
| Jan 2025Star Production, | 0 | 0 | $75.74 | $4.13 |
| Dec 2024Star Production, | 0 | 0 | $70.12 | $3.01 |
| Nov 2024Star Production, | 0 | 0 | $69.95 | $2.12 |
| Oct 2024Star Production, | 0 | 0 | $71.99 | $2.20 |
| Sep 2024Star Production, | 0 | 0 | $70.24 | $2.28 |
| Aug 2024Star Production, | 0 | 0 | $76.68 | $1.99 |
| Jul 2024Star Production, | 0 | 0 | $81.80 | $2.07 |
| Jun 2024Star Production, | 0 | 0 | $79.77 | $2.54 |
| May 2024Star Production, | 0 | 0 | $80.02 | $2.12 |
| Apr 2024Star Production, | 0 | 0 | $85.35 | $1.60 |
| Mar 2024Star Production, | 0 | 0 | $81.28 | $1.49 |
| Feb 2024Star Production, | 0 | 0 | $77.25 | $1.72 |
| Jan 2024Star Production, | 0 | 0 | $74.15 | $3.18 |
| Dec 2023Star Production, | 0 | 0 | $71.90 | $2.52 |
| Nov 2023Star Production, | 0 | 0 | $77.69 | $2.71 |
| Oct 2023Star Production, | 0 | 0 | $85.64 | $2.98 |
| Sep 2023Star Production, | 0 | 0 | $89.43 | $2.64 |
| Aug 2023Star Production, | 0 | 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 HALFMANN. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Star Production, Inc.
- 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
Star Production, Inc. in Tom Green County
- LEE
5,805 bbl last 12 months
- NIEHEUS UNIT
2,670 bbl last 12 months
- DUSEK
2,351 bbl last 12 months
- POWELL "A"
1,349 bbl last 12 months
- NIEHUES UNIT "A"
1,048 bbl last 12 months
Leases within 10 km
Found by the location of their wells.
- POWELL "A"
1,349 bbl last 12 months · 0.7 km away
- DUSEK
2,351 bbl last 12 months · 2.3 km away
- YAN-KEE (CANYON SAND) FIELD MA
268 bbl last 12 months · 2.6 km away
- KELLERMEIER
0 bbl last 12 months · 3.3 km away
- BUCHANAN UNIT
802 bbl last 12 months · 3.8 km away
New drilling permits in Tom Green County
We do not have coordinates for this lease, so these are the newest permits in its county.
WHITEHEAD #V 1
new drill · Tischer Energy, LLC · Tom Green County
Permit 0915286 · May 4, 2026
CORAL SEA UNIT #1H
new drill · horizontal · Moriah Operating,llc · Tom Green County
Permit 0914541 · Apr 8, 2026
TARAWA UNIT #1H
new drill · horizontal · Moriah Operating,llc · Tom Green County
Permit 0914535 · Apr 8, 2026
WARDLAW A #1H
new drill · horizontal · Hibernia Resources IV, LLC · Tom Green County
Permit 0913648 · Feb 25, 2026
TURNER RANCH WEST #2H
new drill · horizontal · Hibernia Resources IV, LLC · Tom Green County
Permit 0912140 · Dec 18, 2025
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 16671, district 7C, 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.