42-303-30816
Final Completion(ANDERSON) BIG ROBBY
LUBBOCK County · District 8 · ZEPHYR PETROLEUM COMPANY · ROBERTSON-ZEPHYR (CLEARFORK)
Permits
1
Max Depth
8,500 ft
First Permit
1982-04-26
Latest Activity
1982-04-26
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1982-08-20
Shut-In
—
Plugged
2020-03-19
EWA / Production operator mismatch
Scheduling: ZEPHYR PETROLEUM COMPANY ≠ Production: TEXLAND PETROLEUM, L.P. (reported 2026-04)
Resolved via: production → TEXLAND PETROLEUM, L.P.
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
Permitted Volume
700 bbl/d
Max Pressure
2,000 psi
Injection Interval
5,020–5,650 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2021-03-01)
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 (5) Elevation 3,258 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UPPER CLEARFORK (Clear Fork) | 4,835 ft | -1,577 ft |
| ROBERTSON-ZEPHYR CF | 5,023 ft | -1,765 ft |
| ROBERTSON-ZEPHYR CLEARFORK | 5,023 ft | -1,765 ft |
| UPPER CLEARFORK (Clear Fork) | 5,835 ft | -2,577 ft |
| WOLFCAMP | 7,308 ft | -4,050 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 |
|---|---|
| 5,020–5,498 ft | Perforated |
| 5,278–5,631 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 350 ft | 500 sx |
| 8.625" | 3,100 ft | 300 sx |
| 2.75" | 5,510 ft | — |
| 4.5" | 8,500 ft | 300 sx |
| 4.5" | — | 725 sx |
Permit History (1)
Applications (1)
Records & Logs
6 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
- 18-9
- Max Depth
- 8,500 ft
- Drill Type
- Vertical
- County
- LUBBOCK
- District
- 8
- Operator
- ZEPHYR PETROLEUM COMPANY
- Completed
- 1982-08-20
Operator
- Name
- ZEPHYR PETRO CO
- Location
- FORT WORTH
- P-5 Status
- Inactive (filed 1991-09-06)
- Total Permits
- 28