OPERATORS · RRC 123870 · P-5 STATUS Y
Calk Operating, LLC
Lytle, TX
Watch this operatorCalk 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 OCT 29, 2026
Where
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
Oil, barrels
Last 12 months 754 · prior 12 815(-7%)
Beyond the permit record
RRC wellbore file
Wells of record
- 6
- on the schedule
- 5
- producing
- 0
- shut in
- 0
- injection
- 0
- temp. abandoned
- 1
- plugged
How it got them
- 0
- permitted itself
- 5
- acquired from others
- 0
- permitted, now run by others
Acquired means the well's permit names a different operator than the schedule does today. 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 code Y
- Last filed Jan 4, 2026
- Oil operator
- Address
- PO Box 94
- Lytle, TX 78052
- (512) 922-8428
- 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 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/123870, documented in the API reference.