42-163-32174
Final Completion HorizontalMILLS MARY ALICE
FRIO County · District 1 · THALMANN DAVID VAC SERVICE INC · PEARSALL (AUSTIN CHALK)
Permits
3
Max Depth
7,500 ft
First Permit
1982-05-17
Latest Activity
1989-11-03
Lifespan
7 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1989-12-21
Shut-In
—
Plugged
2011-03-03
EWA / Production operator mismatch
Scheduling: THALMANN DAVID VAC SERVICE INC ≠ Production: CORE E & P CORP. (reported 2002-08)
EWA / Permit operator mismatch
Scheduling: THALMANN DAVID VAC SERVICE INC ≠ Permit: SANTEX ENERGY INC.
Resolved via: scheduling → THALMANN DAVID VAC SERVICE INC
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 520 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ANACACHO | 6,420 ft | -5,900 ft |
| AUSTIN CHALK | 6,672 ft | -6,152 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 (2)
| Interval | Type |
|---|---|
| 6,385–8,048 ft | Perforated |
| 6,648–6,954 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 336 ft | 250 sx |
| 8.625" | 336 ft | — |
| 2.875" | 6,506 ft | — |
| 5.5" | 6,592 ft | 1,250 sx |
Permit History (3)
Applications (3)
Records & Logs
3 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
- 2
- Max Depth
- 7,500 ft
- Drill Type
- Horizontal
- County
- FRIO
- District
- 1
- Operator
- THALMANN DAVID VAC SERVICE INC
- Completed
- 1989-12-21
Operator
- Location
- CARRIZO SPG
- P-5 Status
- Delinquent (filed 2006-09-29)
- Cum Oil (all leases)
- 145,130 bbl
- Cum Gas (all leases)
- 2,787 mcf
- Activities
- GTHS/O
- Total Permits
- 1