42-103-32848
Final CompletionTUBB J. B. -C-
CRANE County · District 8 · FORMENTERA OPERATIONS LLC · SAND HILLS (MCKNIGHT)
Permits
1
Max Depth
4,775 ft
First Permit
1982-02-25
Latest Activity
1982-02-25
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1982-09-20
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: FORMENTERA OPERATIONS LLC ≠ Production: APACHE CORPORATION (reported 2019-08)
EWA / Permit operator mismatch
Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: EXXON CORP.
Resolved via: scheduling → FORMENTERA OPERATIONS LLC
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 (4) Elevation 2,600 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| JUDKINS | 2,642 ft | -42 ft |
| MCKNIGHT | 3,040 ft | -440 ft |
| SAN ANGELO | 3,494 ft | -894 ft |
| TUBB | 4,142 ft | -1,542 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 (3)
| Interval | Type |
|---|---|
| 3,050–3,318 ft | Perforated |
| 3,050–4,626 ft | Perforated |
| 4,210–4,626 ft | Perforated |
Casing (7)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 551 ft | 325 sx |
| 1.5" | 3,370 ft | — |
| 2.875" | 3,744 ft | 2,150 sx |
| 2.875" | 3,744 ft | — |
| 2.375" | 4,130 ft | — |
| 4.5" | 4,770 ft | 2,150 sx |
| 4.5" | 4,770 ft | 2,150 sx |
Permit History (1)
Applications (1)
Records & Logs
5 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
- 31
- Max Depth
- 4,775 ft
- Drill Type
- Vertical
- County
- CRANE
- District
- 8
- Operator
- FORMENTERA OPERATIONS LLC
- Completed
- 1982-09-20
Operator
- Location
- AUSTIN
- P-5 Status
- X (filed 2026-06-11)
- Cum Oil (all leases)
- 7,170,117 bbl
- Cum Gas (all leases)
- 53,235,974 mcf
- Activities
- CSGD/P, G/PUR, OPRS/G, OPRS/O
- Total Permits
- 71