42-321-01606
Final CompletionOHIO-SUN UNIT
MATAGORDA County · District 3 · MARATHON OIL COMPANY · MARKHAM N.-BAY CITY N (6700)
Permits
3
Max Depth
8,064 ft
First Permit
1979-03-07
Latest Activity
2000-03-08
Lifespan
21 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
2009-08-20
EWA / Production operator mismatch
Scheduling: MARATHON OIL COMPANY ≠ Production: ALLEGIANT RESOURCES, LLC (reported 2026-04)
Resolved via: production → ALLEGIANT RESOURCES, LLC
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
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 71 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CAYCE | 7,791 ft | -7,720 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 (6)
| Interval | Type |
|---|---|
| 6,637–6,640 ft | Perforated |
| 6,637–? ft | Perforated |
| 6,696–? ft | Perforated |
| 7,377–7,781 ft | Perforated |
| 7,791–7,797 ft | Perforated |
| ?–6,700 ft | Perforated |
Casing (8)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,547 ft | 15 sx |
| 10.75" | 1,547 ft | 800 sx |
| 10.75" | 1,547 ft | — |
| 2" | 6,601 ft | — |
| 2" | 6,675 ft | — |
| 5.5" | 8,058 ft | 978 sx |
| 5.5" | 8,058 ft | 1,100 sx |
| 5.5" | 8,058 ft | — |
Permit History (3)
Applications (3)
Records & Logs
8 completion filings on record · 1 with log images at RRC.
+2 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
- 3B
- Max Depth
- 8,064 ft
- Drill Type
- Vertical
- County
- MATAGORDA
- District
- 3
- Operator
- MARATHON OIL COMPANY
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