42-067-30051
Final CompletionEARLY
CASS County · District 6 · MARATHON OIL COMPANY · LASSATER (COTTON VALLEY)
Permits
2
Max Depth
12,819 ft
First Permit
1991-07-19
Latest Activity
1994-10-14
Lifespan
3 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1991-05-02
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: MARATHON OIL COMPANY ≠ Production: BROWN, TOM INC. (reported 2004-11)
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
4,000 bbl/d
Max Pressure
2,500 psi
Injection Interval
5,010–5,315 ft
Injected (12mo)
906,547 bbl
Monthly injected volume (bbl, from H-10 filings through 2026-03-01)
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 (5) Elevation 430 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| COTTON VALLEY SAND (Cotton Valley) | 10,370 ft | -9,940 ft |
| BOSSIER | 11,115 ft | -10,685 ft |
| COTTON VALLEY LM (Cotton Valley) | 11,316 ft | -10,886 ft |
| COTTO VALLEY LIME | 11,316 ft | -10,886 ft |
| SMACKOVER B (Smackover) | 11,820 ft | -11,390 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 (9)
| Interval | Type |
|---|---|
| 5,026–5,056 ft | Perforated |
| 5,154–5,182 ft | Perforated |
| 5,226–5,248 ft | Perforated |
| 5,276–5,308 ft | Perforated |
| 7,613–7,622 ft | Perforated |
| 7,629–7,632 ft | Perforated |
| 7,635–7,638 ft | Perforated |
| 10,709–10,720 ft | Perforated |
| 11,352–11,601 ft | Perforated |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 14" | 59 ft | — |
| 14" | 59 ft | — |
| 9.625" | 3,868 ft | 1,180 sx |
| 9.625" | 3,868 ft | — |
| 5.5" | 11,714 ft | 750 sx |
| 5.5" | 11,714 ft | — |
Permit History (2)
Applications (2)
Records & Logs
7 completion filings on record · 2 with log images at RRC.
+1 more filings
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
- 12,819 ft
- Drill Type
- Vertical
- County
- CASS
- District
- 6
- Operator
- MARATHON OIL COMPANY
- Completed
- 1991-05-02
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