OPERATORS · TEXAS · P-5 NUMBER 123870
Calk Operating, LLC
- P-5 status
- Active (A)
- P-5 last filed
- Apr 2, 2026
- Based in
- Lytle, TX
Petrora groups this registration with Calk Operating Co., Texas (0 active wells). Calk Operating, LLC across every state →
Calk Operating, LLC has filed no drilling permits in the past 12 months.
The RRC wellbore file lists 6 wells under its operatorship (5 producing).
Lease reports credit it with 754 barrels of oil and 0 mcf of gas in the 12 months reported through April 2026.
- 0
- permits, last 12 months
- —
- vs prior 12 months (0)
- 0
- counties, 12 months
- 5
- producing wells, of 6 of record
- 2
- leases it reports
- —
- horizontal, 12 months
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 5, 2026
Permits issued by month
LAST 60 MONTHS · BY ISSUE DATE
Last 12 months 0 · prior 12 0
Counties
No permits on file under this operator number. Counties of its wells of record, from the RRC wellbore file.
All 0 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 |
|---|---|---|
| No completion tops on file. | ||
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 →
- 754
- bbl oil, last 12 reported months
- —
- vs the 12 months before
- 0
- mcf gas incl. casinghead, last 12
- 11.8K
- bbl oil since reporting began
Last 12 months 754 · prior 12 815(-7%)
Calk Operating, LLC: Oil by month.
Beyond the permit record
RRC wellbore file
Wells of record
How it got them
Each count opens the wells it counts. Acquired means the well's permit names a different operator than the schedule does today; wells it permitted that others now run are in its permit history, marked with who runs them now. Transfers and operator numbers →
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.
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status Active (A)
- Last filed Apr 2, 2026
- Oil operator
- Address
- PO Box 94
- Lytle, TX 78052
- (830) 772-4068
- Officers and agents
- Calk, Roger D. · Manager
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 771760 | Oct 26, 2013 | Oct 26, 2013 | Calk Operating Co. | Atascosa | Goodwyn, A.B. #15 | 2,000 | 01334842 |
| 771758 | Oct 26, 2013 | Oct 26, 2013 | Calk Operating Co. | Atascosa | Goodwyn, A.B. #14 | 2,000 | 01334841 |
| 748293 | Sep 27, 2012 | Sep 27, 2012 | Calk Oil Company | Bexar | Calk, E.W. #12 | 1,600 | 02938286 |
| 748292 | Sep 27, 2012 | Sep 27, 2012 | Calk Oil Company | Bexar | Calk, E.W. #15 | 1,600 | 02938285 |
| 285152 | Sep 17, 1985 | Sep 17, 1985 | Durango Production Company, Inc. | Atascosa | Goodwyn, A. B. #13 | 1,900 | 01333537 |
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 by the operator that filed them, through the statewide reported-through month; disposal from UIC permits and H-10 reports. Summary figures are rebuilt nightly. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/operators/tx/123870, documented in the API reference.