OPERATORS · TEXAS · P-5 NUMBER 525398 · DE WITT COUNTY
Marathon Oil EF LLC in De Witt County
One operator, one county: its permits, wells of record, formations, and leases here, with the rest of the county and the rest of the operator one click away.
Marathon Oil Ef LLC has 64 drilling permits on file in De Witt County, the first issued in 2011 and the latest on July 1, 2026.
8 of them came in the last twelve months, 300% more than the year before; 100% horizontal, averaging 17,500 ft.
It is operator of record on 261 wells in the county: 214 producing, 1 shut in, 0 injection.
Its completed wells here most often report Eagle Ford, Austin Chalk, Wilcox.
- 8
- permits, 12 months +300%
- 64
- permits, all time since 2011
- 100%
- horizontal, 12 months
- 17,500
- ft average depth, 12 months
- 261
- wells of record
- 214
- producing · 1 shut in · 0 injection
Permits issued by month
LAST FIVE YEARS · DE WITT ONLY
Last 12 months 8 · prior 12 2(+300%)
Latest permits here
| Issued | Lease / well | Type | Depth |
|---|---|---|---|
| Jul 1, 2026 | Schorlemer Quad SA A #1 916038 | DrillHZ | 17,500 |
| Jun 30, 2026 | Hope-Dwor-Saun B SA A #1 916055 | DrillHZ | 17,500 |
| Jun 30, 2026 | Hope-Dwor-Saun B SA A #1 916055 | DrillHZ | 17,500 |
| Jun 30, 2026 | Hope-Dwor-Saun B SA A #1 916055 | DrillHZ | 17,500 |
| Jun 29, 2026 | Hope-Saunders B SA E #1 916051 | DrillHZ | 17,500 |
| Jun 29, 2026 | Hope-Saunders B SA D #1 916049 | DrillHZ | 17,500 |
| Jun 29, 2026 | Hope-Saunders B SA C #1 916047 | DrillHZ | 17,500 |
| Jun 29, 2026 | Hope-Saunders B SA B #1 916045 | DrillHZ | 17,500 |
| Jun 29, 2026 | Hope-Saunders B SA A #1 916044 | DrillHZ | 17,500 |
| Jun 29, 2026 | Hope-Saunders B SA D #1 916049 | DrillHZ | 17,500 |
All 64 permits in De Witt County, searchable → · Wells of record here →
Permit types and formations
Permit types
- Drill
- 8 / 61
- Field transfer
- 0 / 2
- Recompletion
- 0 / 1
12 MONTHS / ALL TIME
Formations reported
- Eagle Ford
- 217
- Austin Chalk
- 199
- Wilcox
- 177
- Yegua
- 141
- Catahoula
- 141
- Frio
- 141
- Vicksburg
- 141
- Edwards
- 140
- Midway
- 115
- Carrizo
- 41
Leases it reports here
| Lease | Wells | Oil, bbl | Last reported |
|---|---|---|---|
| Dworaczyk 01 | 1 | 825K | Apr 2026 |
| Dworaczyk 01 | 1 | 805K | Apr 2026 |
| Edward Roeder 02 | 1 | 727K | Apr 2026 |
| Dworaczyk 01 | 1 | 721K | Apr 2026 |
| Dworaczyk 01 | 1 | 718K | Apr 2026 |
| Hope 01 | 1 | 616K | Apr 2026 |
| Hope 01 | 1 | 568K | Apr 2026 |
| Hope 01 | 1 | 554K | Apr 2026 |
| Edward Roeder 02 | 1 | 544K | Apr 2026 |
| Bruns 01 | 1 | 540K | Apr 2026 |
| Bruns 01 | 1 | 531K | Apr 2026 |
| Hope 01 | 1 | 530K | Apr 2026 |
| Schroeder 01 | 1 | 529K | Apr 2026 |
| Bruns 01 | 1 | 518K | Apr 2026 |
| Dworaczyk 01 | 1 | 516K | Apr 2026 |
All leases it reports → · Other operators in De Witt County →
About this data
Permits from the RRC OGA049M master and daily daf420 files; wells of record and status from the EWA wellbore schedule, weekly; formations from the dbf900 wellbore file; leases from PDQ lease reports, placed in the county by the wells completed on them.
Developers: this page as JSON is GET /v1/data/operators/tx/525398/counties/de-witt, documented in the API reference.