Texas oil lease
No report in 6+ monthsCOCKBURN OIL CORP.
Cockburn Oil Corp. is an oil lease in Wharton County, Texas, operated by Mosaic Oil LLC in the Lane City field.
5 wells
- Operator
- Mosaic Oil LLC
- County
- Wharton County
- Field
- Lane City
- RRC lease
- 03-02612
Is your check right?
Where it sits
This county
- Oil in Jan 2023
- 0 bbl
- Reporting since
- Sep 2020
Checks stopped on this lease?
- P-5
The current operator's P-5 registration is listed as delinquent (last P-5 filed Feb 24, 2023).
- Sales
No sales reported for the last 12 months of state data (through Jul 2026).
SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.
See why checks stop on this leaseProduction by month
No oil produced in the last 12 months
- Oil (bars)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
No gas disposition reported for this lease
Who has run this lease
The operator changed once, most recently in Oct 2020
- Mosaic Oil LLC Oct 2020 to now
- Camoil, Inc. Sep 2020 to Sep 2020
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
5 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-481-02644 | 1 | Active |
| 42-481-03234 | 6A | Active |
| 42-481-03705 | 10 | Shut-in |
| 42-481-32395 | 11 | Shut-in |
| 42-481-32778 | 12 | Shut-in |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From |
|---|---|---|---|---|
| Endeavor Tank & Transport LLC | Oil | Gathers | 50 | Apr 1, 2018 |
| Gulfmark Energy, Inc. | Oil | Gathers | 50 | Mar 1, 2015 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
587 acres on the newest permit
- Good to know
9 wells are listed on this lease
Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.
- Worth asking
A Rule 37 case is listed
The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-481-32395 | 11 | Dec 14, 1989 | Jun 17, 1983 | 587 |
| 42-481-32778 | 12 | Oct 14, 1988 | Feb 22, 1985 | 587 |
| 42-481-03705 | 10 | May 7, 1985 | May 27, 1968 | 587 |
| 42-481-02644 | 1 | – | – | – |
| 42-481-02649 | 6 | – | Jan 12, 1984 | – |
| 42-481-02650 | 7 | – | Oct 12, 1967 | – |
| 42-481-02651 | 9 | – | Apr 18, 1966 | – |
| 42-481-03234 | 6A | – | Mar 1, 1987 | – |
| 42-481-81989 | 8 | – | Sep 30, 1961 | – |
Estimate your royalty
29 months, newest first
| Month | Oil producedbbl | Oil soldbbl | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|
| Jan 2023Mosaic Oil | 0 | 0 | $78.12 | $3.27 |
| Dec 2022Mosaic Oil | 0 | 0 | $76.44 | $5.53 |
| Nov 2022Mosaic Oil | 0 | 0 | $84.37 | $5.45 |
| Oct 2022Mosaic Oil | 0 | 0 | $87.55 | $5.66 |
| Sep 2022Mosaic Oil | 0 | 0 | $84.26 | $7.88 |
| Aug 2022Mosaic Oil | 0 | 0 | $93.67 | $8.81 |
| Jul 2022Mosaic Oil | 0 | 0 | $101.62 | $7.28 |
| Jun 2022Mosaic Oil | 0 | 0 | $114.84 | $7.70 |
| May 2022Mosaic Oil | 0 | 0 | $109.55 | $8.14 |
| Apr 2022Mosaic Oil | 0 | 0 | $101.78 | $6.60 |
| Mar 2022Mosaic Oil | 0 | 0 | $108.50 | $4.90 |
| Feb 2022Mosaic Oil | 0 | 0 | $91.64 | $4.69 |
| Jan 2022Mosaic Oil | 0 | 0 | $83.22 | $4.38 |
| Dec 2021Mosaic Oil | 0 | 0 | $71.71 | $3.76 |
| Nov 2021Mosaic Oil | 0 | 0 | $79.15 | $5.05 |
| Oct 2021Mosaic Oil | 0 | 0 | $81.48 | $5.51 |
| Sep 2021Mosaic Oil | 20 | 0 | $71.65 | $5.16 |
| Aug 2021Mosaic Oil | 20 | 0 | $67.73 | $4.07 |
| Jul 2021Mosaic Oil | 20 | 0 | $72.49 | $3.84 |
| Jun 2021Mosaic Oil | 20 | 0 | $71.38 | $3.26 |
| May 2021Mosaic Oil | 20 | 143 | $65.17 | $2.91 |
| Apr 2021Mosaic Oil | 20 | 0 | $61.72 | $2.66 |
| Mar 2021Mosaic Oil | 0 | 0 | $62.33 | $2.62 |
| Feb 2021Mosaic Oil | 0 | 0 | $59.04 | $5.35 |
| Jan 2021Mosaic Oil | 0 | 0 | $52.00 | $2.71 |
| Dec 2020Mosaic Oil | 0 | 0 | $47.02 | $2.58 |
| Nov 2020Mosaic Oil | 0 | 0 | $40.94 | $2.61 |
| Oct 2020Mosaic Oil | 0 | 0 | $39.40 | $2.39 |
| Sep 2020Camoil, Inc. | 0 | 0 | $39.63 | $1.92 |
SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.
How to check your stub against this lease Checks stopped on this lease? See the likely reasonsDo your checks match this lease?
Nearby
This lease belongs to
Mosaic Oil LLC in Wharton County
No other producing leases from this operator in this county are in our data yet.
Lane City field
No other producing leases in this field are in our data yet.
Leases within 10 km
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- COCKBURN DEEP FRIO UNIT NO. 1
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