42-211-31867
Final CompletionHUMPHREYS L. H.
HEMPHILL County · District 10 · UNIT PETROLEUM COMPANY · FELDMAN (TONKAWA)
Permits
2
Max Depth
11,750 ft
First Permit
1987-07-28
Latest Activity
1987-07-28
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1987-12-06
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: UNIT PETROLEUM COMPANY ≠ Permit: SUN EXPLORATION & PRODUCTION CO.
Resolved via: scheduling → UNIT PETROLEUM 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
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (13) Elevation 2,561 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| DOUGLAS | 6,982 ft | -4,421 ft |
| DOUGLAS SAND (Douglas) | 7,076 ft | -4,515 ft |
| TONKAWA | 7,721 ft | -5,160 ft |
| COTTAGE GROVE | 8,320 ft | -5,759 ft |
| HOGSHOOTER | 8,622 ft | -6,061 ft |
| CHECKERBOARD | 8,817 ft | -6,256 ft |
| UPPER CLEVELAND (Cleveland) | 8,946 ft | -6,385 ft |
| LOWER CLEVELAND (Cleveland) | 9,237 ft | -6,676 ft |
| OSWEGO | 9,454 ft | -6,893 ft |
| GRANITE WASH | 9,950 ft | -7,389 ft |
| ATOKA | 10,950 ft | -8,389 ft |
| MORROW SHALE (Morrow) | 11,226 ft | -8,665 ft |
| MORROW SAND (Morrow) | 11,268 ft | -8,707 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 (1)
| Interval | Type |
|---|---|
| 7,738–7,757 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,984 ft | 1,230 sx |
| 5.5" | 11,200 ft | 715 sx |
Permit History (2)
Applications (2)
Records & Logs
4 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
- 1
- Max Depth
- 11,750 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- UNIT PETROLEUM COMPANY
- Completed
- 1987-12-06
Operator
- Name
- UNIT PETRO CO
- Location
- TULSA
- P-5 Status
- Active (filed 2025-01-13)
- Cum Oil (all leases)
- 8,610,362 bbl
- Cum Gas (all leases)
- 788,031,686 mcf
- Activities
- CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 1,100