OPERATORS · TEXAS · P-5 NUMBER 747542
Sandefer Petroleum Company
- P-5 status
- Inactive (I)RRC P-5 file of Oct 22, 2026
- P-5 last filed
- Oct 21, 1992
- Based in
- Houston, TX
Petrora groups this registration with Sandefer Petroleum Company, Oklahoma (0 active wells). Sandefer Petroleum Company across every state →
Sandefer Petroleum Company has filed no drilling permits in the past 12 months; its most recent permit was issued September 30, 1991.
The RRC wellbore file lists 6 wells under its operatorship.
47 drilling permits have been issued to this operator number since 1981; its P-5 organization report was last filed October 21, 1992.
- 0
- permits, last 12 months
- —
- vs prior 12 months (0)
- 0
- counties, 12 months
- 0
- producing wells, of 10 of record
- 0
- leases it reports
- —
- horizontal, 12 months
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 13, 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.
- 40%
- spud rate · 19 of 47 mature permits
- 26
- median days permit to spud · middle half 17–100
- 0
- spuds, last 180 days
- 9%
- canceled · 4 permits
- 24
- expired undrilled
- 4
- permits a year over 11 active years
Permits issued by month
LAST 60 MONTHS · BY ISSUE DATE
Last 12 months 0 · prior 12 0
Counties
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 |
|---|---|---|---|---|
| Galveston county → | — | 10 | 0 | Sep 30, 1991 |
| Live Oak county → | — | 9 | 1 | Feb 28, 1989 |
| Nueces county → | — | 7 | 3 | Jul 22, 1982 |
| Orange county → | — | 4 | 0 | Jun 8, 1983 |
| Matagorda county → | — | 3 | 1 | Feb 8, 1982 |
| Anderson county → | — | 2 | 0 | Jan 3, 1989 |
| Brazoria county → | — | 2 | 0 | May 16, 1988 |
| Chambers county → | — | 2 | 0 | Oct 16, 1990 |
| Jefferson county → | — | 2 | 1 | Apr 2, 1984 |
| Atascosa county → | — | 1 | 0 | May 10, 1984 |
| Calhoun county → | — | 1 | 0 | Dec 13, 1982 |
| Howard county → | — | 1 | 0 | Sep 12, 1984 |
| Jackson county → | — | 1 | 0 | Jan 15, 1985 |
| Liberty county → | — | 1 | 0 | Aug 13, 1984 |
| McMullen county → | — | 1 | 0 | Oct 24, 1984 |
All 47 permits, searchable → · Leases it reported on → · On the map →
Formations in wells it permitted
Tops reported on completion filings for wells permitted under this operator number, including wells others run today. RRC wellbore file. About tops →
| Formation | Wells | Permitted last 3 yrs |
|---|---|---|
| Frio | 1 | 0 |
Production by month
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 ten years.
Beyond the permit record
Operator of record and permit operator
A well's operator of record is the RRC's, and its permit operator is the one on its latest drilling permit; neither fills in for the other. Its wellbores of record are counted as its wells, with its live permits; a well it permitted that another operator runs, or that the RRC lists with no operator at all, is not. Each count opens the wells it counts. 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 | 41 |
| Recompletion | 0 | 0 | 6 |
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 |
|---|---|---|
| Agua Dulce (8550)832937 | 2 | 0 |
| Agua Dulce (9560)832964 | 1 | 0 |
| Gaus (Nonion Struma)34257500 | 1 | 0 |
| Mellon (TM-1 Fba)60357300 | 1 | 0 |
| Texam (Wilcox 9380)89052885 | 1 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status Inactive (I)
- RRC P-5 file of Oct 22, 2026
- Last filed Oct 21, 1992
- Address
- 909 Fannin #3250
- Houston, TX 77010
- (713) 651-1551
- Officers and agents
- Sandefer, J.D. III · Chairman/President/Director
- Smith, Stephen F. · Vice President/Director
- Wilhite, Allen · Controller
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
About this data
Registration from the RRC P-5 organization file, loaded when the Commission posts a new one. Permits from the OGA049M master and daily daf420 files; wells of record from the EWA wellbore schedule; production from PDQ lease reports by the operator that filed them, through the statewide reported-through month; disposal from UIC permits and H-10 reports. Oil includes condensate from gas leases and gas includes casinghead gas from oil leases, as the RRC totals them. Summary figures are rebuilt nightly. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/operators/tx/747542, documented in the API reference.