42-461-01855
Final CompletionPEGASUS ELLENBURGER UNIT
UPTON County · District 7 · XTO ENERGY INC. · PEGASUS (ELLENBURGER)
Permits
1
Max Depth
12,900 ft
First Permit
1997-06-26
Latest Activity
1997-06-26
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 (6) Elevation 2,872 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SPRABERRY | 7,658 ft | -4,786 ft |
| WOLFCAMP | 9,158 ft | -6,286 ft |
| STRAWN | 10,028 ft | -7,156 ft |
| BEND | 10,245 ft | -7,373 ft |
| DEVONIAN | 11,301 ft | -8,429 ft |
| ELLENBURGER | 12,759 ft | -9,887 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 |
|---|---|
| 12,000–12,180 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 448 ft | 450 sx |
| 9.625" | 4,702 ft | 4,400 sx |
| 7.625" | 9,268 ft | 600 sx |
| 5.5" | 12,975 ft | 625 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
- 4403
- Max Depth
- 12,900 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