Permits
1
Max Depth
2,500 ft
First Permit
1985-10-02
Latest Activity
1985-10-02
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 OIL COMPANY ≠ Permit: CAMPBELL, L. W.
Resolved via: production → CALK OIL COMPANY
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 (3)
CSV| Formation | Top Depth (MD) |
|---|---|
| WILCOX | 575 ft |
| LIT | 1,645 ft |
| OLMOS | 1,664 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. View filings & logs at RRC ↗
Perforations (1)
| Interval | Type |
|---|---|
| 1,664–1,676 ft | Perforated |
Casing (1)
| Size | Set Depth | Cement |
|---|---|---|
| 4.5" | 1,712 ft | 115 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record · 1 with log images at RRC.
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
- 20
- Max Depth
- 2,500 ft
- Drill Type
- Vertical
- County
- ATASCOSA
- District
- 1
- Operator
- CALK OIL COMPANY
- Completed
- 1985-12-01
Operator
- Name
- CALK OIL CO
- Location
- LYTLE
- P-5 Status
- Active (filed 2026-06-03)
- Cum Oil (all leases)
- 89,606 bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/O
- Total Permits
- 2