Permits
1
Max Depth
1,900 ft
First Permit
1985-09-17
Latest Activity
1985-09-17
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1985-12-01
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: CALK OPERATING LLC ≠ Permit: DURANGO PRODUCTION COMPANY, INC.
Resolved via: production → CALK OPERATING, LLC
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
1993-01
Last Production
2026-07
Operator History
Chain of Custody
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (2) Elevation 670 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LITUOLA | 1,338 ft | -668 ft |
| OLMOS SAND (Olmos) | 1,346 ft | -676 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗
Perforations (1)
| Interval | Type |
|---|---|
| 1,346–1,362 ft | Perforated |
Casing (1)
| Size | Set Depth | Cement |
|---|---|---|
| 4.5" | 1,440 ft | 322 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 13
- Max Depth
- 1,900 ft
- Drill Type
- Vertical
- County
- ATASCOSA
- District
- 1
- Operator
- CALK OPERATING LLC
- Completed
- 1985-12-01
Operator
- Name
- CALK OPERATING, LLC
- Location
- LYTLE
- P-5 Status
- Active (filed 2026-04-02)
- Cum Oil (all leases)
- 11,830 bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/O