42-461-03905
Final CompletionPEGASUS ELLENBURGER UNIT
UPTON County · District 7 · XTO ENERGY INC. · PEGASUS (ELLENBURGER)
Permits
1
Max Depth
13,200 ft
First Permit
2010-09-09
Latest Activity
2010-09-09
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2002-04-10
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: XTO ENERGY INC. ≠ Production: COG OPERATING LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: XTO ENERGY INC. ≠ Permit: COG OPERATING LLC
Resolved via: production → COG OPERATING 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 (6) Elevation 2,875 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CLEARFORK (Clear Fork) | 6,820 ft | -3,945 ft |
| SPRABERRY | 7,595 ft | -4,720 ft |
| DEAN | 8,865 ft | -5,990 ft |
| WOLFCAMP | 9,025 ft | -6,150 ft |
| LOWER WOLFCAMP (Wolfcamp) | 9,320 ft | -6,445 ft |
| LOWER WOLFCAMP 3 (Wolfcamp) | 9,700 ft | -6,825 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 (1)
| Interval | Type |
|---|---|
| 9,030–9,815 ft | Perforated |
Casing (9)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 453 ft | 450 sx |
| 13.375" | 471 ft | — |
| 13.375" | 472 ft | 450 sx |
| 13.375" | 472 ft | — |
| 9.625" | 4,769 ft | 4,500 sx |
| 9.625" | 4,769 ft | 4,500 sx |
| 7.625" | 9,250 ft | 1,300 sx |
| 7.625" | 9,250 ft | 1,300 sx |
| 5.5" | 13,198 ft | — |
Permit History (1)
Applications (1)
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
- 2301
- Max Depth
- 13,200 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- XTO ENERGY INC.
- Completed
- 2002-04-10
Operator
- Name
- XTO ENGY INC
- Location
- SPRING
- P-5 Status
- X (filed 2026-04-08)
- Cum Oil (all leases)
- 772,419,164 bbl
- Cum Gas (all leases)
- 11,039,899,986 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 16,138