Permits
2
Max Depth
1,999 ft
First Permit
1983-01-19
Latest Activity
2000-04-28
Lifespan
17 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
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
Injection / Disposal
PECOS County disposal market →Permitted Volume
30,000 bbl/d
Max Pressure
550 psi
Injection Interval
1,102–1,615 ft
Injected (12mo)
2,475,359 bbl
Monthly injected volume (bbl, from H-10 filings through 2026-05-01)
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 (9) Elevation 2,373 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BASE CRETACEOUS (Base Cretaceous (marker)) | 340 ft | +2,033 ft |
| BASE CRETAVEOUS | 340 ft | +2,033 ft |
| SMITH SAND | 539 ft | +1,834 ft |
| YATES (SMITH SAND) (Yates) | 539 ft | +1,834 ft |
| YATES SMITH SAND (Yates) | 539 ft | +1,834 ft |
| SEVEN RIVERS | 631 ft | +1,742 ft |
| QUEEN | 1,082 ft | +1,291 ft |
| GRAYBURG | 1,110 ft | +1,263 ft |
| SAN ANDRES | 1,130 ft | +1,243 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 (7)
| Interval | Type |
|---|---|
| 1,230–1,250 ft | Perforated |
| 1,230–1,350 ft | Perforated |
| 1,260–1,270 ft | Perforated |
| 1,280–1,300 ft | Perforated |
| 1,308–1,328 ft | Perforated |
| 1,333–1,373 ft | Perforated |
| 1,333–1,563 ft | Open hole |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 523 ft | 700 sx |
| 8.625" | 923 ft | 400 sx |
| 2.375" | 1,254 ft | — |
| 7" | 1,333 ft | — |
| 7" | 1,335 ft | 250 sx |
Permit History (2)
Applications (2)
Records & Logs
5 completion filings on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 40D56
- Max Depth
- 1,999 ft
- Drill Type
- Vertical
- County
- PECOS
- District
- 8
- 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