42-383-34815
PRODUCINGUNIVERSITY F
REAGAN County · District 7 · APACHE CORPORATION · GRIERSON SPRING (STRAWN)
Permits
1
Max Depth
9,500 ft
First Permit
1997-07-18
Latest Activity
1997-07-18
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1997-09-15
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: APACHE CORPORATION ≠ Permit: MARATHON OIL COMPANY
Resolved via: production → APACHE CORPORATION
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
1997-09
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 (6) Elevation 2,909 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 1,930 ft | +979 ft |
| GRAYBURG | 3,077 ft | -168 ft |
| SPRBY | 5,706 ft | -2,797 ft |
| DEAN | 6,930 ft | -4,021 ft |
| STRAWN | 8,695 ft | -5,786 ft |
| DEVONIAN | 8,870 ft | -5,961 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 |
|---|---|
| 8,705–8,711 ft | Perforated |
| 8,768–8,794 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 11.75" | 868 ft | 500 sx |
| 8.625" | 3,165 ft | 740 sx |
| 5.5" | 8,954 ft | 1,135 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
- 4
- Max Depth
- 9,500 ft
- Drill Type
- Vertical
- County
- REAGAN
- District
- 7
- Operator
- APACHE CORPORATION
- Completed
- 1997-09-15
Operator
- Name
- APC OPER PARTNERSHIP
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-12-03)
- Cum Oil (all leases)
- 615,928,793 bbl
- Cum Gas (all leases)
- 2,702,742,169 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 9,664