42-321-00376
Final CompletionOHIO-SUN UNIT
MATAGORDA County · District 3 · MARATHON OIL COMPANY · MARKHAM N.-BAY CITY N. (7550)
Permits
5
Max Depth
8,835 ft
First Permit
1977-12-22
Latest Activity
2008-11-19
Lifespan
31 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: MARATHON OIL COMPANY ≠ Production: ALLEGIANT RESOURCES, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: MARATHON OIL COMPANY ≠ Permit: PREMIER NATURAL RESOURCES, LLC
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 (3) Elevation 59 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIOCEN | 2,500 ft | -2,441 ft |
| ANAHUAC | 5,500 ft | -5,441 ft |
| FRIO | 6,500 ft | -6,441 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 |
|---|---|
| 7,499–7,504 ft | Perforated |
| 7,532–? ft | Perforated |
| 7,764–7,770 ft | Perforated |
| 7,869–7,877 ft | Perforated |
| 8,530–8,534 ft | Perforated |
| 8,536–8,540 ft | Perforated |
Casing (8)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 2,062 ft | 1,350 sx |
| 10.75" | 2,062 ft | 1,350 sx |
| 2.375" | 7,480 ft | — |
| 2.375" | 7,490 ft | — |
| 5.5" | 8,787 ft | 1,000 sx |
| 5.5" | 8,834 ft | 1,000 sx |
| 5.5" | 8,834 ft | 1,000 sx |
| 5.5" | 8,834 ft | 1,000 sx |
Permit History (5)
OHIO-SUN UNIT · 8,835 ft
2008-11-19
Spud 2007-01-20
OHIO SUN UNIT · 8,835 ft
1994-02-22
Spud 1993-11-30
OHIO-SUN UNIT · 8,835 ft
1985-06-27
OHIO - SUN UNIT · 8,835 ft
1983-11-21
OHIO SUN UNIT · 8,835 ft
1977-12-22
Applications (5)
Records & Logs
12 completion filings on record · 2 with log images at RRC.
+6 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
- 5F
- Max Depth
- 8,835 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