42-461-01859
Final CompletionPEGASUS ELLENBURGER UNIT
UPTON County · District 7 · XTO ENERGY INC. · PEGASUS (ELLENBURGER)
Permits
1
Max Depth
13,200 ft
First Permit
2000-09-08
Latest Activity
2000-09-08
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: XTO ENERGY INC. ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.
Resolved via: production → XTO ENERGY INC.
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 (4)
CSV| Formation | Top Depth (MD) |
|---|---|
| PENN. (Pennsylvanian) | 10,032 ft |
| FUSSELMAN | 12,134 ft |
| MONTOYA | 12,248 ft |
| SIMPSON | 12,372 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. View filings & logs at RRC ↗
Perforations (2)
| Interval | Type |
|---|---|
| 11,785–11,790 ft | Perforated |
| 11,884–11,944 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 11.75" | 4,702 ft | 3,600 sx |
| 8.625" | 9,220 ft | 950 sx |
| 5.5" | 12,761 ft | 250 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 4401
- Max Depth
- 13,200 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- XTO ENERGY INC.
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