42-165-33618
Final CompletionROBERTSON /CLEARFORK/ UNIT
GAINES County · District 8 · HILCORP ENERGY COMPANY · ROBERTSON N. (CLEAR FORK 7100)
Permits
1
Max Depth
7,200 ft
First Permit
1987-05-12
Latest Activity
1987-05-12
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1987-11-11
Shut-In
—
Plugged
2011-10-28
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: EXXON CORP.
Resolved via: production → HILCORP ENERGY COMPANY
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 (6) Elevation 3,333 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 1,763 ft | +1,570 ft |
| TANSILL | 2,768 ft | +565 ft |
| SEVEN RIVERS | 3,050 ft | +283 ft |
| SAN ANDRES | 4,370 ft | -1,037 ft |
| U. CLEARFORK | 6,266 ft | -2,933 ft |
| L. CLEARFORK | 7,012 ft | -3,679 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 (4)
| Interval | Type |
|---|---|
| 5,888–6,350 ft | Perforated |
| 6,450–6,765 ft | Perforated |
| 6,875–7,106 ft | Perforated |
| 7,139–7,215 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,767 ft | 950 sx |
| 5.5" | 7,446 ft | 1,560 sx |
Permit History (1)
Applications (1)
Records & Logs
2 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
- 1121
- Max Depth
- 7,200 ft
- Drill Type
- Vertical
- County
- GAINES
- District
- 8
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 1987-11-11
Operator
- Name
- HILCORP ENGY CO
- Location
- HOUSTON
- P-5 Status
- X (filed 2026-03-27)
- Cum Oil (all leases)
- 75,699,281 bbl
- Cum Gas (all leases)
- 1,779,939,645 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,430