42-417-34221
Final CompletionDAVIS RANCH 42 A
SHACKELFORD County · District 7 · MARATHON OIL COMPANY · SHACKELFORD COUNTY REGULAR
Permits
1
Max Depth
3,700 ft
First Permit
1981-11-30
Latest Activity
1981-11-30
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1982-01-12
Shut-In
—
Plugged
1996-08-05
EWA / Production operator mismatch
Scheduling: MARATHON OIL COMPANY ≠ Production: GRAYROCK ENERGY II, LLC (reported 2025-01)
EWA / Permit operator mismatch
Scheduling: MARATHON OIL COMPANY ≠ Permit: TXO PRODUCTION CORP.
Resolved via: scheduling → MARATHON OIL 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
—
Max Pressure
1,675 psi
Injection Interval
—
Injected (12mo)
—
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 (1) Elevation 1,944 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MORRIS SAND | 3,450 ft | -1,506 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 |
|---|---|
| 3,452–3,464 ft | Perforated |
| 3,452–3,479 ft | Perforated |
| 3,468–3,479 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 222 ft | 180 sx |
| 2.375" | 3,400 ft | — |
| 4.5" | 3,550 ft | 150 sx |
Permit History (1)
Applications (1)
Records & Logs
5 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
- 7
- Max Depth
- 3,700 ft
- Drill Type
- Vertical
- County
- SHACKELFORD
- District
- 7
- Operator
- MARATHON OIL COMPANY
- Completed
- 1982-01-12
Operator
- Name
- MARATHON OIL CO
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-08-14)
- Cum Oil (all leases)
- 183,150,113 bbl
- Cum Gas (all leases)
- 1,013,063,895 mcf
- Activities
- CSGD/P, G/PUR
- Total Permits
- 3,707