Texas oil lease · RRC district 01 · Lease 11563
ProducingSPEARS
Spears is an oil lease in Bexar County, Texas, operated by Calfas Cattle & Oil, LLC in the Somerset field. The Railroad Commission shows 203 bbl of oil in the 12 months through Jul 2026.
Oil lease dossier · 5 wells
- Operator
- Calfas Cattle & Oil, LLC
- County
- Bexar County
- Field
- Somerset
- RRC lease
- 01-11563
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Where it sits
This county
- Oil in Jul 2026
- 17 bbl
- Reporting to the state
- since Jan 2020
- Wells
- 5
- Data through
- Jul 2026
Production
Month by month, from the state record
Oil output fell 15% over the last 12 months
203 bbl in the 12 months through Jul 2026, against 238 bbl in the 12 months before.
- Oil (bars, left axis)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, oil lease 11563, district 01. 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
The operator changed once, most recently in Jan 2023
If your statements skip or shrink around a change, ask the new operator's owner relations department whether the month is in suspense.
- Calfas Cattle & Oil, LLC Jan 2023 to now
- Civron Petroleum Res., LLC Jan 2020 to Dec 2022
SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.
Wells
5 wells on this lease
| API number | Well no. | Status | Total depthft |
|---|---|---|---|
| 42-029-37587 | 1 | Active | – |
| 42-029-37603 | 4 | Active | – |
| 42-029-37604 | 3 | Active | – |
| 42-029-37605 | 2 | Active | – |
| 42-029-37606 | 5 | Active | – |
SourceTexas Railroad Commission Wellbore Query, district 01, lease 11563.
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 SPEARS 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 2026Calfas Cattle | 17 | 0 | $80.46 | $2.89 |
| Jun 2026Calfas Cattle | 21 | 0 | $84.81 | $3.15 |
| May 2026Calfas Cattle | 20 | 0 | $102.13 | $2.94 |
| Apr 2026Calfas Cattle | 36 | 0 | $100.32 | $2.77 |
| Mar 2026Calfas Cattle | 1 | 109 | $91.38 | $3.04 |
| Feb 2026Calfas Cattle | 6 | 0 | $64.51 | $3.62 |
| Jan 2026Calfas Cattle | 8 | 0 | $60.04 | $7.72 |
| Dec 2025Calfas Cattle | 26 | 0 | $57.97 | $4.26 |
| Nov 2025Calfas Cattle | 8 | 0 | $60.06 | $3.79 |
| Oct 2025Calfas Cattle | 22 | 0 | $60.89 | $3.19 |
| Sep 2025Calfas Cattle | 2 | 0 | $63.96 | $2.97 |
| Aug 2025Calfas Cattle | 36 | 0 | $64.86 | $2.91 |
| Jul 2025Calfas Cattle | 21 | 102 | $68.39 | $3.20 |
| Jun 2025Calfas Cattle | 17 | 0 | $68.17 | $3.02 |
| May 2025Calfas Cattle | 20 | 0 | $62.17 | $3.12 |
| Apr 2025Calfas Cattle | 4 | 0 | $63.54 | $3.42 |
| Mar 2025Calfas Cattle | 56 | 113 | $68.24 | $4.12 |
| Feb 2025Calfas Cattle | 30 | 0 | $71.53 | $4.19 |
| Jan 2025Calfas Cattle | 36 | 0 | $75.74 | $4.13 |
| Dec 2024Calfas Cattle | 30 | 106 | $70.12 | $3.01 |
| Nov 2024Calfas Cattle | 4 | 0 | $69.95 | $2.12 |
| Oct 2024Calfas Cattle | 4 | 0 | $71.99 | $2.20 |
| Sep 2024Calfas Cattle | 7 | 0 | $70.24 | $2.28 |
| Aug 2024Calfas Cattle | 9 | 0 | $76.68 | $1.99 |
| Jul 2024Calfas Cattle | 7 | 0 | $81.80 | $2.07 |
| Jun 2024Calfas Cattle | 1 | 0 | $79.77 | $2.54 |
| May 2024Calfas Cattle | 1 | 0 | $80.02 | $2.12 |
| Apr 2024Calfas Cattle | 9 | 0 | $85.35 | $1.60 |
| Mar 2024Calfas Cattle | 7 | 0 | $81.28 | $1.49 |
| Feb 2024Calfas Cattle | 14 | 0 | $77.25 | $1.72 |
| Jan 2024Calfas Cattle | 6 | 0 | $74.15 | $3.18 |
| Dec 2023Calfas Cattle | 1 | 0 | $71.90 | $2.52 |
| Nov 2023Calfas Cattle | 26 | 0 | $77.69 | $2.71 |
| Oct 2023Calfas Cattle | 23 | 116 | $85.64 | $2.98 |
| Sep 2023Calfas Cattle | 2 | 0 | $89.43 | $2.64 |
| Aug 2023Calfas Cattle | 2 | 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 SPEARS. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Calfas Cattle & Oil, 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
Calfas Cattle & Oil, LLC in Bexar County
- KOCH
44 bbl last 12 months
- MEAD, MILTON O.
27 bbl last 12 months
- KURZ#2
10 bbl last 12 months
Somerset field
- LONG
1,128 bbl last 12 months
- HAYES, RICHARD
938 bbl last 12 months
- BAKER
861 bbl last 12 months
- FOWLER
765 bbl last 12 months
- ERNST
741 bbl last 12 months
New drilling permits in Bexar County
We do not have coordinates for this lease, so these are the newest permits in its county.
No recent drilling permits found for this area.
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 11563, 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.