42-123-33697
PRODUCING HorizontalMATEJEK 01
DE WITT County · District 2 · MARATHON OIL EF LLC · DE WITT (EAGLE FORD SHALE)
Permits
1
Max Depth
21,000 ft
First Permit
2014-09-15
Latest Activity
2014-09-15
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2016-02-17
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: MARATHON OIL EF LLC ≠ Permit: PIONEER NATURAL RES. USA, INC.
Resolved via: scheduling → MARATHON OIL EF 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
2015-05
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 (11) Elevation 387 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| FRIO | 749 ft | -362 ft |
| FRIO | 750 ft | -363 ft |
| VICKSBURG | 1,941 ft | -1,554 ft |
| VICKSBURG | 1,942 ft | -1,555 ft |
| YEGUA | 2,882 ft | -2,495 ft |
| WILCOX | 6,226 ft | -5,839 ft |
| AUSTIN CHALK | 12,833 ft | -12,446 ft |
| EAGLE FORD | 13,335 ft | -12,948 ft |
| EAGLE FORD | 13,336 ft | -12,949 ft |
| CATAHOULA | — | — |
| EDWARDS - H2S (Edwards) | — | — |
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 (1)
| Interval | Type |
|---|---|
| 13,549–18,465 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,155 ft | 1,290 sx |
| 9.625" | 10,088 ft | 2,475 sx |
| 5.5" | 18,608 ft | 1,700 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 can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 06H
- Max Depth
- 21,000 ft
- Drill Type
- Horizontal
- County
- DE WITT
- District
- 2
- Operator
- MARATHON OIL EF LLC
- Completed
- 2016-02-17
Operator
- Name
- MARATHON OIL EF LLC
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-09-26)
- Cum Oil (all leases)
- 409,189,156 bbl
- Cum Gas (all leases)
- 1,029,735,602 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,175