42-461-03309
UPEGASUS ELLENBURGER UNIT
UPTON County · District 7 · MOBIL PRODUCING TX. & N.M. INC. · PEGASUS (ELLENBURGER)
Permits
1
Max Depth
13,061 ft
First Permit
1988-07-11
Latest Activity
1988-07-11
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2000-03-17
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: MOBIL PRODUCING TX. & N.M. INC. ≠ Production: XTO ENERGY INC. (reported 2026-04)
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
No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.
Perforations (3)
| Interval | Type |
|---|---|
| 12,040–12,111 ft | Perforated |
| 12,636–12,732 ft | Perforated |
| 12,765–12,850 ft | Open hole |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 476 ft | 400 sx |
| 9.625" | 4,293 ft | 3,200 sx |
| 9.625" | 4,923 ft | — |
| 7.625" | 9,235 ft | 1,060 sx |
| 5.5" | 12,763 ft | — |
| 5.5" | 12,765 ft | 508 sx |
Permit History (1)
Applications (1)
Records & Logs
6 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
- 1603
- Max Depth
- 13,061 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- MOBIL PRODUCING TX. & N.M. INC.
- Completed
- 2000-03-17
Operator
- Name
- SUPERIOR OIL CO, THE
- Location
- SPRING
- P-5 Status
- Active (filed 2025-06-04)
- Cum Oil (all leases)
- 181,898,111 bbl
- Cum Gas (all leases)
- 1,950,074,148 mcf
- Activities
- CSGD/G, GTHS/C, GTHS/G
- Total Permits
- 6,763