42-123-32296
PRODUCING HorizontalPICKETT GAS UNIT
DE WITT County · District 2 · MARATHON OIL EF LLC · SAN MARCOS (AUSTIN CHALK)
Permits
2
Max Depth
19,000 ft
First Permit
2009-09-22
Latest Activity
2009-09-22
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2011-02-13
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: production → 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
2010-03
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 (6) Elevation 303 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIDWAY | 10,130 ft | -9,827 ft |
| AUSTIN CHALK - UPPER (Austin Chalk) | 13,525 ft | -13,222 ft |
| AUSTIN CHALK - LOWER (Austin Chalk) | 13,921 ft | -13,618 ft |
| AUSTIN CHALK LOWER (Austin Chalk) | — | — |
| CARRIZO | — | — |
| MIDWAY | — | — |
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 |
|---|---|
| 16,199–17,912 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 2,507 ft | 1,650 sx |
| 7.625" | 14,435 ft | 510 sx |
| 4.5" | 18,096 ft | 615 sx |
Permit History (2)
Applications (2)
Records & Logs
3 completion filings on record · 2 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
- 1
- Max Depth
- 19,000 ft
- Drill Type
- Horizontal
- County
- DE WITT
- District
- 2
- Operator
- MARATHON OIL EF LLC
- Completed
- 2011-02-13
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