OPERATORS · RRC 123566 · P-5 STATUS Y
Cal Oil Co
Missouri City, TX
Watch this operatorCal Oil CO has filed no drilling permits in the past 12 months; its most recent permit was issued July 14, 2017.
The RRC wellbore file lists 2 wells under its operatorship.
16 drilling permits have been issued to this operator number since 2012; its P-5 organization report was last filed July 4, 2026.
- 0
- permits, last 12 months
- —
- vs prior 12 months (0)
- 0
- counties, 12 months
- 0
- producing wells, of 2 of record
- 2
- leases it reports
- —
- horizontal, 12 months
WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026
From permit to spud
FROM THE DATES ON ITS W-1 PERMITS · ALL TIME
A permit is a plan, not a well. These figures count only permits old enough to have spudded, six months and more, and read the spud, cancel, and expiry dates the RRC records on each one.
- 50%
- spud rate · 8 of 16 mature permits
- 30
- median days permit to spud · middle half 18–41
- 0
- spuds, last 180 days
- 0%
- cancelled · 0 permits
- 8
- expired undrilled
- 3
- permits a year over 5 active years
Where
Counties by permits in the last 12 months, with all-time permits and current wells of record there.
| County | 12 mo | All time | Wells | Last |
|---|---|---|---|---|
| Garza county → | — | 8 | 0 | Sep 19, 2013 |
| Medina county → | — | 4 | 0 | Jul 14, 2017 |
| Kent county → | — | 3 | 0 | Jul 9, 2013 |
| Frio county → | — | 1 | 0 | May 8, 2015 |
All 16 permits, searchable → · Leases it reports → · On the map →
Formations in its completed wells
Tops reported on completion filings for wells it operates. RRC wellbore file. About tops →
| Formation | Wells | Permitted last 3 yrs |
|---|---|---|
| Ellenburger | 2 | 0 |
| Strawn | 1 | 0 |
| Fusselman | 1 | 0 |
Production by month
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Barrels on leases where this operator filed the production report. Lease-level by design; the latest months are revised upward as late reports arrive. How production is reported →
- 0
- bbl oil, last 12 reported months
- —
- vs the 12 months before
- 0
- mcf gas incl. casinghead, last 12
- 23.9K
- bbl oil since reporting began
No lease production reported under this operator number in the last three years.
Beyond the permit record
RRC wellbore file
Wells of record
- 2
- on the schedule
- 0
- producing
- 0
- shut in
- 0
- injection
- 0
- temp. abandoned
- 0
- plugged
How it got them
- 0
- permitted itself
- 2
- acquired from others
- 6
- permitted, now run by others
Acquired means the well's permit names a different operator than the schedule does today. Transfers and operator numbers →
Permit types
Last 12 months against the prior 12, and all time. A type opens the permit history filtered to it. What the types mean →
| Type | 12 mo | Prior 12 | All time |
|---|---|---|---|
| Drill | 0 | 0 | 14 |
| Reenter | 0 | 0 | 1 |
| Recompletion | 0 | 0 | 1 |
Fields
RRC regulatory fields with the most wells of record under this operator. The field opens its page; the count opens this operator's wells in it.
| Field | Wells | Producing |
|---|---|---|
| Bear Creek6469001 | 2 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status code Y
- Last filed Jul 4, 2026
- Address
- 2419 Peninsulas Dr
- Missouri City, TX 77459
- (832) 988-8122
- Officers and agents
- YU, Christine Shifeng · President
- Zang, Lei · Vice President
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 828708 | Jul 14, 2017 | Jul 14, 2017 | Cal Oil Company | Medina | Lilly #1 | 2,488 | 32533812 |
| 813529 | Feb 4, 2016 | Feb 4, 2016 | Cal Oil Company | Medina | Darrell B. Murdock #1 | 2,283 | 32532569 |
| 806238 | Jun 12, 2015 | Jun 12, 2015 | Cal Oil Company | Medina | Lilly #1 | 2,300 | 32534189 |
| 806279 | May 8, 2015 | May 8, 2015 | Cal Oil Company | Medina | Lewis #1 | 2,200 | 32534186 |
| 806276 | May 8, 2015 | May 8, 2015 | Cal Oil Company | Frio | Lilly 'C' #1 | 2,500 | 16333943 |
| 769477 | Sep 19, 2013 | Sep 19, 2013 | Cal Oil Company | Garza | Carol Sue Reed #6503 | 1,000 | 16934143 |
| 769477 | Sep 19, 2013 | Sep 19, 2013 | Cal Oil Company | Garza | Carol Sue Reed #6503 | 2,000 | 16934143 |
| 769477 | Sep 19, 2013 | Sep 19, 2013 | Cal Oil Company | Garza | Carol Sue Reed #6503 | 4,000 | 16934143 |
| 765534 | Jul 9, 2013 | Jul 9, 2013 | Cal Oil Company | Garza | Carol Sue Reed #6603 | 7,800 | 16934132 |
| 765533 | Jul 9, 2013 | Jul 9, 2013 | Cal Oil Company | Kent | Carol Sue Reed #5903 | 7,800 | 26332064 |
| 765525 | Jul 9, 2013 | Jul 9, 2013 | Cal Oil Company | Kent | Carol Sue Reed #5901 | 7,800 | 26332063 |
| 752768 | Dec 18, 2012 | Dec 18, 2012 | Cal Oil Company | Kent | Carol Sue Reed #6002 | 8,300 | 26332028 |
| 752766 | Dec 18, 2012 | Dec 18, 2012 | Cal Oil Company | Garza | Carol Sue Reed #6601 | 8,300 | 16934107 |
| 752778 | Dec 17, 2012 | Dec 17, 2012 | Cal Oil Company | Garza | Carol Sue Reed #6502 | 8,300 | 16934110 |
| 752778 | Dec 17, 2012 | Dec 17, 2012 | Cal Oil Company | Garza | Carol Sue Reed #6502 | 8,300 | 16934110 |
About this data
Registration from the RRC P-5 organization report, refreshed weekly. Permits from the OGA049M master and daily daf420 files; wells of record from the EWA wellbore schedule; production from PDQ lease reports at the last vintage; disposal from UIC permits and H-10 reports. Summary figures are rebuilt nightly.
Developers: this page as JSON is GET /v1/data/operators/tx/123566, documented in the API reference.