OPERATORS · RRC 128546 · P-5 STATUS Y
Calyx Expl & Prod. Corp
Dallas, TX
Watch this operatorCalyx Expl & Prod. Corp has filed no drilling permits in the past 12 months; its most recent permit was issued August 2, 1989.
The RRC wellbore file lists 2 wells under its operatorship.
5 drilling permits have been issued to this operator number since 1987; its P-5 organization report was last filed September 2, 2016.
- 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.
- 0%
- spud rate · 0 of 5 mature permits
- —
- median days permit to spud
- 0
- spuds, last 180 days
- 0%
- cancelled · 0 permits
- 5
- expired undrilled
- 3
- permits a year over 2 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 |
|---|---|---|---|---|
| Cass county → | — | 4 | 2 | Nov 18, 1988 |
| Nacogdoches county → | — | 1 | 0 | Aug 2, 1989 |
All 5 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 |
|---|---|---|
| Rodessa | 2 | 0 |
| Pettit | 1 | 0 |
| Travis Peak | 1 | 0 |
| Massive Anhydrite (marker) | 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
- 2
- on the schedule
- 0
- producing
- 0
- shut in
- 0
- injection
- 0
- temp. abandoned
- 1
- plugged
How it got them
- 2
- permitted itself
- 0
- acquired from others
- 2
- 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 | 5 |
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 |
|---|---|---|
| Rambo North (Rodessa 6100)74399400 | 1 | 0 |
| Wildcat12001 | 1 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status code Y
- Last filed Sep 2, 2016
- Oil operator
- Address
- 5445 la Sierra, Suite 204
- Dallas, TX 75231
- Officers and agents
- Pretus, Robert H. · Texas Resident Agent
- Washington, Timothy · President
- Pretus, Robert H. · Vice President/Secretary/Directo
- Skalnik, Petr · Manager
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 362297 | Aug 2, 1989 | Aug 2, 1989 | Calyx Exploration & Prod. Corp. | Nacogdoches | Hill, R.C. #1 | 3,700 | 34731570 |
| 353449 | Nov 18, 1988 | Nov 18, 1988 | Calyx Exploration & Prod. Corp. | Cass | Penn #1 | 6,700 | 06730602 |
| 348542 | Jul 8, 1988 | Jul 8, 1988 | Calyx Exploration & Prod. Corp. | Cass | Manville #2 | 6,300 | 06730588 |
| 348542 | Jul 8, 1988 | Jul 8, 1988 | Calyx Exploration & Prod. Corp. | Cass | Manville #2 | 6,440 | 06730588 |
| 340424 | Dec 22, 1987 | Dec 22, 1987 | Calyx Exploration & Prod. Corp. | Cass | Manville #1 | 7,000 | 06730570 |
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/128546, documented in the API reference.