42-501-32812
INJECTIONMAHONEY H. O.
YOAKUM County · District 8 · HILCORP ENERGY COMPANY · WASSON 72
Permits
1
Max Depth
8,200 ft
First Permit
1985-03-15
Latest Activity
1985-03-15
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1986-07-18
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.
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
Injection / Disposal
Permitted Volume
2,000 bbl/d
Max Pressure
2,400 psi
Injection Interval
6,300–8,300 ft
Injected (12mo)
76,920 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-09-01)
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 (7) Elevation 3,549 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 3,142 ft | +407 ft |
| SAN ANDRES | 4,580 ft | -1,031 ft |
| GLORIETTA (Glorieta) | 5,950 ft | -2,401 ft |
| UPPER CLEARFORK (Clear Fork) | 6,721 ft | -3,172 ft |
| TUBB | 7,480 ft | -3,931 ft |
| LOWER CLEARFORK (Clear Fork) | 7,598 ft | -4,049 ft |
| WICHITA ALBANY (Wichita-Albany) | 8,003 ft | -4,454 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 |
|---|---|
| 7,661–8,064 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 450 ft | 450 sx |
| 13.375" | 450 ft | — |
| 8.625" | 5,399 ft | 2,400 sx |
| 8.625" | 5,399 ft | — |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 66
- Max Depth
- 8,200 ft
- Drill Type
- Vertical
- County
- YOAKUM
- District
- 8
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 1986-07-18
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
- 3,435