OPERATORS · RRC 747542 · P-5 STATUS Y
Transco Expl Co
Houston, TX
Watch this operatorTransco Expl CO has filed no drilling permits in the past 12 months; its most recent permit was issued September 30, 1991.
The RRC wellbore file lists 5 wells under its operatorship.
50 drilling permits have been issued to this operator number since 1981; its P-5 organization report was last filed July 7, 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.
- 38%
- spud rate · 19 of 50 mature permits
- 26
- median days permit to spud · middle half 17–100
- 0
- spuds, last 180 days
- 8%
- cancelled · 4 permits
- 27
- expired undrilled
- 5
- permits a year over 11 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 |
|---|---|---|---|---|
| Galveston county → | — | 13 | 0 | Sep 30, 1991 |
| Live Oak county → | — | 9 | 1 | Feb 28, 1989 |
| Nueces county → | — | 7 | 2 | 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 50 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 |
|---|---|---|
| Woodbine | 1 | 0 |
| Buda | 1 | 0 |
| James Lime | 1 | 0 |
| Rodessa | 1 | 0 |
| Pettit | 1 | 0 |
| Wilcox | 1 | 0 |
| Queen City | 1 | 0 |
| Frio | 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
- 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
- 3
- permitted itself
- 2
- acquired from others
- 15
- 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 | 43 |
| Recompletion | 0 | 0 | 7 |
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 | 1 | 0 |
| Agua Dulce (9560)832964 | 1 | 0 |
| Gaus (Nonion Struma)34257500 | 1 | 0 |
| Kendall (9250 Wilcox)48821500 | 1 | 0 |
| Mellon (TM-1 Fba)60357300 | 1 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status code Y
- Last filed Jul 7, 1993
- Address
- 909 Fannin #3250
- Houston, TX 77010
- 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
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 392394 | Sep 30, 1991 | Sep 30, 1991 | Sandefer Petroleum Company | Galveston | Runnels/Armour et AL #1 | 19,973 | 16731206 |
| 392394 | Sep 30, 1991 | Sep 30, 1991 | Sandefer Petroleum Company | Galveston | Runnels/Armour et AL #1 | 19,759 | 16731206 |
| 385413 | Mar 7, 1991 | Mar 7, 1991 | Sandefer Petroleum Company | Galveston | Mitchell Fee #1 | 13,040 | 16731188 |
| 379593 | Oct 16, 1990 | Oct 16, 1990 | Sandefer Petroleum Company | Chambers | Cade et AL #1 | 13,500 | 07131941 |
| 369598 | Feb 16, 1990 | Feb 16, 1990 | Sandefer Petroleum Company | Galveston | Humphrey, G. D. et AL #1 | 10,300 | 16731181 |
| 369598 | Feb 16, 1990 | Feb 16, 1990 | Sandefer Petroleum Company | Galveston | Humphrey, G. D. et AL #1 | 10,300 | 16731181 |
| 356517 | Feb 28, 1989 | Feb 28, 1989 | Sandefer Petroleum Company | Live Oak | Schreiner, K.W. #1 | 10,800 | 29733175 |
| 354562 | Jan 3, 1989 | Jan 3, 1989 | Sandefer Petroleum Company | Anderson | Pierson, S. S. #1 | 10,000 | 00131815 |
| 346549 | May 16, 1988 | May 16, 1988 | Sandefer Petroleum Company | Brazoria | Moore, W. N. et AL #1 | 10,200 | 03932290 |
| 342064 | Feb 2, 1988 | Feb 2, 1988 | Sandefer Petroleum Company | Galveston | State Tract 356 #1 | 18,000 | 16731150 |
| 340527 | Dec 21, 1987 | Dec 21, 1987 | Sandefer Petroleum Company | Anderson | Curry, Addie #1 | 10,700 | 00131815 |
| 337745 | Oct 26, 1987 | Oct 26, 1987 | Sandefer Petroleum Company | Galveston | State Tract 347 #1 | 10,300 | 16731143 |
| 333370 | Jul 27, 1987 | Jul 27, 1987 | Sandefer Petroleum Company | Brazoria | Smith, J. L. #1 | 12,000 | 03932212 |
| 304049 | Jul 11, 1986 | Jul 11, 1986 | Sandefer Petroleum Company | Galveston | State Tract 133-A #1 | 13,500 | 16731116 |
| 304049 | Jul 11, 1986 | Jul 11, 1986 | Sandefer Petroleum Company | Galveston | State Tract 133-A #1 | 14,000 | 16731116 |
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/747542, documented in the API reference.