Texas oil lease · RRC district 05 · Lease 03439
Shut inCASTON
Caston is an oil lease in Navarro County, Texas, operated by Mud Creek Operating, LLC in the Pan Ware (Rodessa) field.
Oil lease dossier · 2 wells
- Operator
- Mud Creek Operating, LLC
- County
- Navarro County
- Field
- Pan Ware (Rodessa)
- RRC lease
- 05-03439
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Where it sits
This county
- Oil in Jul 2026
- 0 bbl
- Reporting to the state
- since Jan 2020
- Wells
- 2
- Data through
- Jul 2026
Production
Month by month, from the state record
No oil produced in the last 12 months
The last month with output was Jul 2025, at 12 bbl.
- Oil (bars, left axis)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, oil lease 03439, district 05. 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 2026
If your statements skip or shrink around a change, ask the new operator's owner relations department whether the month is in suspense.
- Mud Creek Operating, LLC Jan 2026 to now
- Ursus Oil and Gas Jan 2020 to Dec 2025
SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.
Wells
2 wells on this lease
| API number | Well no. | Status | Total depthft |
|---|---|---|---|
| 42-349-33050 | 1 | Shut-in | – |
| 42-349-33777 | 2 | Shut-in | – |
SourceTexas Railroad Commission Wellbore Query, district 05, lease 03439.
Who buys and gathers
Who moves and buys this lease's production
Oil
Eastex Crude Company, LLC gathers it.
100% of it, on the list since Sep 1, 2026
Companies that used to be listed: Plains Marketing, L.p. (gathers it, until Sep 1, 2026).
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
370.40 acres on the newest permit
- Wells on the permits
- 21 not plugged
- Horizontal
- 1
- First completion
- Oct 16, 1992
- Latest permit
- May 26, 1998
A pooling certificate was filed
Your tract may share its production with neighbours in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.
The wells on this lease state different acreage
The permits state between 370.4 and 691.24 acres. Use the acres from your own division order for the well you are paid on.
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-349-33777 | 2 | May 26, 1998 | Nov 18, 1999 | 370.40 |
| 42-349-33050 | 1 | Dec 29, 1992 | Oct 16, 1992 | 691.24 |
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 CASTON 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 2026Mud Creek | 0 | 0 | $80.46 | $2.89 |
| Jun 2026Mud Creek | 0 | 0 | $84.81 | $3.15 |
| May 2026Mud Creek | 0 | 0 | $102.13 | $2.94 |
| Apr 2026Mud Creek | 0 | 0 | $100.32 | $2.77 |
| Mar 2026Mud Creek | 0 | 0 | $91.38 | $3.04 |
| Feb 2026Mud Creek | 0 | 0 | $64.51 | $3.62 |
| Jan 2026Mud Creek | 0 | 0 | $60.04 | $7.72 |
| Dec 2025Ursus Oil | 0 | 0 | $57.97 | $4.26 |
| Nov 2025Ursus Oil | 0 | 0 | $60.06 | $3.79 |
| Oct 2025Ursus Oil | 0 | 0 | $60.89 | $3.19 |
| Sep 2025Ursus Oil | 0 | 0 | $63.96 | $2.97 |
| Aug 2025Ursus Oil | 0 | 0 | $64.86 | $2.91 |
| Jul 2025Ursus Oil | 12 | 0 | $68.39 | $3.20 |
| Jun 2025Ursus Oil | 0 | 0 | $68.17 | $3.02 |
| May 2025Ursus Oil | 0 | 0 | $62.17 | $3.12 |
| Apr 2025Ursus Oil | 4 | 0 | $63.54 | $3.42 |
| Mar 2025Ursus Oil | 0 | 0 | $68.24 | $4.12 |
| Feb 2025Ursus Oil | 8 | 0 | $71.53 | $4.19 |
| Jan 2025Ursus Oil | 0 | 0 | $75.74 | $4.13 |
| Dec 2024Ursus Oil | 7 | 0 | $70.12 | $3.01 |
| Nov 2024Ursus Oil | 0 | 0 | $69.95 | $2.12 |
| Oct 2024Ursus Oil | 0 | 0 | $71.99 | $2.20 |
| Sep 2024Ursus Oil | 6 | 0 | $70.24 | $2.28 |
| Aug 2024Ursus Oil | 0 | 0 | $76.68 | $1.99 |
| Jul 2024Ursus Oil | 11 | 0 | $81.80 | $2.07 |
| Jun 2024Ursus Oil | 0 | 0 | $79.77 | $2.54 |
| May 2024Ursus Oil | 6 | 0 | $80.02 | $2.12 |
| Apr 2024Ursus Oil | 0 | 0 | $85.35 | $1.60 |
| Mar 2024Ursus Oil | 6 | 0 | $81.28 | $1.49 |
| Feb 2024Ursus Oil | 0 | 0 | $77.25 | $1.72 |
| Jan 2024Ursus Oil | 4 | 0 | $74.15 | $3.18 |
| Dec 2023Ursus Oil | 0 | 0 | $71.90 | $2.52 |
| Nov 2023Ursus Oil | 2 | 0 | $77.69 | $2.71 |
| Oct 2023Ursus Oil | 0 | 0 | $85.64 | $2.98 |
| Sep 2023Ursus Oil | 6 | 0 | $89.43 | $2.64 |
| Aug 2023Ursus Oil | 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 CASTON. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Mud Creek Operating, 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
Mud Creek Operating, LLC in Navarro County
No other producing leases from this operator in this county are in our data yet.
Leases within 10 km
Found by the location of their wells.
- MCCASLIN, G. M. GAS UNIT O/A
20,437 mcf last 12 months · 0.6 km away
- WEED
1,297 bbl last 12 months · 0.9 km away
- WEED "A"
0 bbl last 12 months · 1 km away
- HENDERSON, MARVIN
0 bbl last 12 months · 1.3 km away
- MERRITT, THOMAS
1,686 bbl last 12 months · 1.8 km away
Drilling permits within 10 km
FLEMING #3
new drill · Walker Operating Company · Navarro County · 4.7 km away
Permit 0908070 · May 20, 2025
FLEMING #2
new drill · Walker Operating Company · Navarro County · 5 km away
Permit 0908069 · May 20, 2025
FLEMING #1
new drill · Walker Operating Company · Navarro County · 5 km away
Permit 0905746 · Feb 10, 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 03439, district 05, 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.