OPERATORS · RRC 520325 · P-5 STATUS Y
Machii-Ross Petro Co
Santa Monica, CA
Watch this operatorMachii-Ross Petro CO has filed no drilling permits in the past 12 months; its most recent permit was issued October 22, 1980.
The RRC wellbore file lists 5 wells under its operatorship.
35 drilling permits have been issued to this operator number since 1978; its P-5 organization report was last filed April 2, 1993.
- 0
- permits, last 12 months
- —
- vs prior 12 months (0)
- 0
- counties, 12 months
- 0
- producing wells, of 5 of record
- 0
- 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.
- 34%
- spud rate · 12 of 35 mature permits
- 32
- median days permit to spud · middle half 12–71
- 0
- spuds, last 180 days
- 23%
- cancelled · 8 permits
- 15
- expired undrilled
- 12
- permits a year over 3 active years
Where
Counties by permits in the last 12 months, with all-time permits and current wells of record there.
All 35 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 →
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
- 0
- 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
- 5
- on the schedule
- 0
- producing
- 0
- shut in
- 0
- injection
- 0
- temp. abandoned
- 5
- plugged
How it got them
- 4
- permitted itself
- 1
- acquired from others
- 5
- 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 | 31 |
| Recompletion | 0 | 0 | 4 |
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 |
|---|---|---|
| Los Cuatros (Lower Cretaceous)54948300 | 5 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status code Y
- Last filed Apr 2, 1993
- Address
- 3420 Ocean Park Blvd., STE.3070
- Santa Monica, CA 90405
- Officers and agents
- Johnston, L. · Texas Resident Agent
- TSK Enterprises (USA), Inc. · Partner (Hisayuki Machii-Preside
- Kar Petroleum Company · Partner (Kenneth A. Ross Jr-Gene
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 490813 | Jan 4, 2000 | Jan 4, 2000 | Camelot Oil and Gas, LLC | Maverick | Leddy #1H | 7,200 | 32331268 |
| 490813 | Jan 4, 2000 | Jan 4, 2000 | Camelot Oil and Gas, LLC | Maverick | Leddy #1H | 7,500 | 32331268 |
| 490813 | Jan 4, 2000 | Jan 4, 2000 | Camelot Oil and Gas, LLC | Maverick | Leddy #1H | 8,020 | 32331268 |
| 475898 | May 13, 1998 | May 13, 1998 | Quemado Energy, L.L.C. | Maverick | Leddy #1 | 7,200 | 32331268 |
| 96326 | Oct 22, 1980 | Oct 22, 1980 | Machii-Ross Petroleum Co. | Maverick | Winn Expl. Co.-Boulware Hume #1 | 3,100 | 32331274 |
| 70162 | Jan 8, 1980 | Jan 8, 1980 | Machii-Ross Petroleum Co. | Maverick | Winn Expl.co.,inc.-Kincaid #1 | 8,500 | 32331256 |
| 61676 | Oct 24, 1979 | Oct 24, 1979 | Machii-Ross Petroleum Co. | Maverick | Winn Expl. Co.,inc,-Leddy, Mabel #2 | 3,000 | 32331307 |
| 45234 | Mar 28, 1979 | Mar 28, 1979 | Machii-Ross Petroleum Co. | Maverick | Winn Expl. Co., Inc.,-Kincaid #6 | 8,500 | 32331362 |
| 44354 | Mar 14, 1979 | Mar 14, 1979 | Machii-Ross Petroleum Co. | Maverick | Cooper, Lahaina #1 #1 | 7,800 | 32331347 |
| 44221 | Mar 14, 1979 | Mar 14, 1979 | Machii-Ross Petroleum Co. | Maverick | Winn Expl.-Starett-Baggett #1 | 7,800 | 32331346 |
| 44087 | Mar 12, 1979 | Mar 12, 1979 | Machii-Ross Petroleum Co. | Maverick | Winn Expl. Co., Inc. - Carson #2 | 8,000 | 32331345 |
| 42999 | Feb 22, 1979 | Feb 22, 1979 | Machii-Ross Petroleum Co. | Maverick | Turney-Winn Exploration Co.,inc. #6 | 8,000 | 32331303 |
| 42996 | Feb 22, 1979 | Feb 22, 1979 | Machii-Ross Petroleum Co. | Maverick | Winn Expl. Co Inc.boulware Hume #1 | 8,000 | 32331274 |
| 42689 | Feb 16, 1979 | Feb 16, 1979 | Machii-Ross Petroleum Co. | Maverick | Winn Exploration Co., Inc. #2 | 8,500 | 32331341 |
| 42687 | Feb 16, 1979 | Feb 16, 1979 | Machii-Ross Petroleum Co. | Maverick | Winn Exploration Co,inc.-Kincaid #5 | 8,500 | 32331340 |
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/520325, documented in the API reference.