42-461-40772
INJECTIONPEGASUS SPRABERRY UNIT
UPTON County · District 7 · COG OPERATING LLC · PEGASUS (ELLENBURGER)
Permits
2
Max Depth
15,500 ft
First Permit
2018-03-02
Latest Activity
2018-03-02
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2019-02-20
Shut-In
—
Plugged
—
P-5 Org Status: X
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
2018-11
Last Production
2026-07
Injection / Disposal
UPTON County disposal market →Permitted Volume
30,000 bbl/d
Max Pressure
6,550 psi
Injection Interval
13,100–14,600 ft
Injected (12mo)
3,052,813 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-08-01)
Seismicity: 2 earthquakes M2+ within 10 km in the last 24 months (max M2.0) · TexNet catalog
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (9) Elevation 2,842 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,685 ft | +157 ft |
| GRAYBURG | 4,066 ft | -1,224 ft |
| SAN ANDRES - SALTWATER FLOW (San Andres) | 4,785 ft | -1,943 ft |
| SPRABERRY | 7,679 ft | -4,837 ft |
| WOLFCAMP | 9,121 ft | -6,279 ft |
| STRAWN | 10,426 ft | -7,584 ft |
| DEVONIAN | 11,763 ft | -8,921 ft |
| FUSSELMAN | 12,485 ft | -9,643 ft |
| ELLENBURGER | 13,103 ft | -10,261 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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (1)
| Interval | Type |
|---|---|
| 13,290–14,325 ft | Open hole |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,800 ft | 1,450 sx |
| 9.625" | 8,922 ft | 905 sx |
Permit History (2)
Applications (2)
Records & Logs
1 completion filing 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.
Well Details
- Well Number
- 5908D
- Max Depth
- 15,500 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- COG OPERATING LLC
- Completed
- 2019-02-20
Operator
- Name
- COG OPER LLC
- Location
- MIDLAND
- P-5 Status
- X (filed 2026-06-02)
- Cum Oil (all leases)
- 645,285,792 bbl
- Cum Gas (all leases)
- 305,183,488 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 4,538