42-371-31805
Final CompletionCHALKLEY
PECOS County · District 8 · OLSEN ENERGY INC. · LEHN-APCO SOUTH (ELLEN)
Permits
2
Max Depth
4,740 ft
First Permit
1991-05-31
Latest Activity
1991-05-31
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1977-01-25
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: OLSEN ENERGY INC. ≠ Permit: PEDCO RESOURCES COMPANY
Resolved via: production → OLSEN ENERGY 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 (3) Elevation 2,466 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN | 1,461 ft | +1,005 ft |
| WICHITA ALBANY (Wichita-Albany) | 4,180 ft | -1,714 ft |
| ELLENBERGER (Ellenburger) | 4,596 ft | -2,130 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 |
|---|---|
| 4,210–4,532 ft | Perforated |
| ?–4,740 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,756 ft | 600 sx |
| 5.5" | 4,690 ft | 450 sx |
Permit History (2)
Applications (2)
Records & Logs
3 completion filings on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 1
- Max Depth
- 4,740 ft
- Drill Type
- Vertical
- County
- PECOS
- District
- 8
- Operator
- OLSEN ENERGY INC.
- Completed
- 1977-01-25
Operator
- Name
- OLSEN ENGY INC
- Location
- BOERNE
- P-5 Status
- X (filed 2026-05-26)
- Cum Oil (all leases)
- 4,690,558 bbl
- Cum Gas (all leases)
- 40,548,531 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 243