42-173-31237
Unperfed CompletionBLALOCK, LOIS
GLASSCOCK County · District 8 · ROYALTY LAND & DEV. CO., INC.
Permits
4
Max Depth
11,700 ft
First Permit
1981-11-19
Latest Activity
2011-05-24
Lifespan
30 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
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
Injection / Disposal
GLASSCOCK County disposal market →Permitted Volume
500 bbl/d
Max Pressure
2,228 psi
Injection Interval
4,456–4,832 ft
Injected (12mo)
—
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 (11) Elevation 2,527 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SAN ANDRES | 3,530 ft | -1,003 ft |
| GLORIETTA (Glorieta) | 4,946 ft | -2,419 ft |
| CLEARFORK (Clear Fork) | 6,000 ft | -3,473 ft |
| CLEARFORK (Clear Fork) | 6,010 ft | -3,483 ft |
| SPRABERRY | 6,556 ft | -4,029 ft |
| WOLFCAMP | 8,358 ft | -5,831 ft |
| WOLFCAMP | 8,390 ft | -5,863 ft |
| STRAWN | 9,976 ft | -7,449 ft |
| MISS. (Mississippian) | 10,550 ft | -8,023 ft |
| MISSISSIPPIAN | 10,550 ft | -8,023 ft |
| ELLENBURGER | 11,058 ft | -8,531 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 |
|---|---|
| 8,360–8,478 ft | Perforated |
| 9,976–10,002 ft | Perforated |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 351 ft | 350 sx |
| 9.625" | 4,442 ft | 475 sx |
| 5.5" | 4,741 ft | 400 sx |
| 2.375" | 9,960 ft | — |
| 5.5" | 11,139 ft | 1,075 sx |
| 5.5" | — | 575 sx |
Permit History (4)
BLALOCK, LOIS · 11,150 ft
2011-05-24
Spud 2011-05-24
BLALOCK, LOIS · 11,150 ft
2009-04-29
BLALOCK, LOIS · 11,150 ft
1987-04-10
BLALOCK, LOIS · 11,700 ft
1981-11-19
Spud 1981-11-19
Applications (4)
Records & Logs
6 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
- 3
- Max Depth
- 11,700 ft
- Drill Type
- Vertical
- County
- GLASSCOCK
- District
- 8
- Operator
- ROYALTY LAND & DEV. CO., INC.
Operator
- Location
- WOLFFORTH
- P-5 Status
- Active (filed 2025-12-23)
- Cum Oil (all leases)
- 662,038 bbl
- Cum Gas (all leases)
- 976,717 mcf
- Activities
- OPRS/O
- Total Permits
- 32