OPERATORS · RRC 822495 · P-5 STATUS Y
Sto Oper Co
San Antonio, TX
Watch this operatorSto Oper CO has filed no drilling permits in the past 12 months; its most recent permit was issued February 19, 2010.
The RRC wellbore file lists 4 wells under its operatorship.
13 drilling permits have been issued to this operator number since 2007; its P-5 organization report was last filed February 5, 2010.
- 0
- permits, last 12 months
- —
- vs prior 12 months (0)
- 0
- counties, 12 months
- 0
- producing wells, of 4 of record
- 3
- 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.
- 62%
- spud rate · 8 of 13 mature permits
- 11
- median days permit to spud · middle half 10–12
- 0
- spuds, last 180 days
- 0%
- cancelled · 0 permits
- 5
- expired undrilled
- 3
- permits a year over 4 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 |
|---|---|---|---|---|
| Bastrop county → | — | 9 | 0 | Feb 19, 2010 |
| Fayette county → | — | 2 | 0 | Aug 25, 2009 |
| Brazos county → | — | 1 | 0 | Mar 23, 2009 |
| Lee county → | — | 1 | 0 | Feb 2, 2007 |
All 13 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 |
|---|---|---|
| Austin Chalk | 6 | 0 |
| Eagle Ford | 5 | 0 |
| Pecan Gap | 5 | 0 |
| Buda | 4 | 0 |
| Woodbine | 1 | 0 |
| Georgetown | 1 | 0 |
| Wilcox | 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
- 307K
- 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
- 4
- on the schedule
- 0
- producing
- 0
- shut in
- 0
- injection
- 0
- temp. abandoned
- 3
- plugged
How it got them
- 0
- permitted itself
- 4
- acquired from others
- 7
- permitted, now run by others
Acquired means the well's permit names a different operator than the schedule does today. Transfers and operator numbers →
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 0
- active UIC permits of 1
- 0
- permitted bbl/day, active
- 0
- bbl injected, last 12 reported months
- Jun 2025
- reported through
By county
| Frio | 0 active | 0 bbl/d |
Permitted volume is a ceiling, not throughput. How to read it →
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 | 8 |
| Recompletion | 0 | 0 | 4 |
| Reenter | 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 |
|---|---|---|
| C.J.P. (Reef)14297600 | 2 | 0 |
| Big Foot7850001 | 1 | 0 |
| Giddings (Austin Chalk-3)34733500 | 1 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status code Y
- Last filed Feb 5, 2010
- Address
- 300 East Sonterra Blvd Ste 1220
- San Antonio, TX 78258
- Officers and agents
- Psencik, Wayne A. · President
- Toulan, Roy D., Jr · Secretary
- Shaw, Edward Brett · Coo
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 691136 | Feb 19, 2010 | Feb 19, 2010 | Sto Operating Company | Bastrop | Webb Unit #1HH | 7,000 | 02131585 |
| 684280 | Aug 25, 2009 | Aug 25, 2009 | Sto Operating Company | Fayette | Victor Elias #1REH | 7,500 | 14930676 |
| 630726 | Apr 30, 2009 | Apr 30, 2009 | Sto Operating Company | Fayette | Petrich-Lorenz #2 | 5,536 | 14932371 |
| 674903 | Mar 23, 2009 | Mar 23, 2009 | Sto Operating Company | Brazos | Claude Brocksmith Unit #1 | 9,011 | 04131117 |
| 645060 | Aug 9, 2008 | Aug 9, 2008 | Sto Operating Company | Bastrop | Tyra #3HH | 6,960 | 02131588 |
| 654546 | Feb 11, 2008 | Feb 11, 2008 | Sto Operating Company | Bastrop | McPhaul #1 | 7,500 | 02131599 |
| 649006 | Nov 9, 2007 | Nov 9, 2007 | Sto Operating Company | Bastrop | Stoppelberg #2 | 6,960 | 02131592 |
| 647617 | Oct 23, 2007 | Oct 23, 2007 | Sto Operating Company | Bastrop | Stoppelberg #1 | 6,960 | 02131591 |
| 647795 | Oct 18, 2007 | Oct 18, 2007 | Sto Operating Company | Bastrop | Maggie #1REH | 10,000 | 02131535 |
| 645591 | Oct 15, 2007 | Oct 15, 2007 | Sto Operating Company | Bastrop | Wachsmann #1 | 6,960 | 02131590 |
| 645060 | Aug 29, 2007 | Aug 29, 2007 | Sto Operating Company | Bastrop | Tyra #3 | 6,960 | 02131588 |
| 639724 | Jun 4, 2007 | Jun 4, 2007 | Sto Operating Company | Bastrop | Tyra #2 | 7,000 | 02131583 |
| 631755 | Feb 2, 2007 | Feb 2, 2007 | Sto Operating Company | Lee | Noack, R. W. #1 | 4,000 | 28732539 |
| 246404 | Jul 26, 1984 | Jul 26, 1984 | C&C II | Frio | Burns "B" #2 | 3,600 | 16332350 |
| 227001 | Jan 20, 1984 | Jan 20, 1984 | Chase-Mann Petroleum Incorp. | Atascosa | Diamond Head #2 | 2,500 | 01332523 |
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/822495, documented in the API reference.