42-317-42481
PRODUCING HorizontalDARK STAR UNIT 2
MARTIN County · District 8 · XTO ENERGY INC. · SPRABERRY (TREND AREA)
Permits
2
Max Depth
10,000 ft
First Permit
2019-08-22
Latest Activity
2019-08-22
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2021-07-27
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
2019-12
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (18) Elevation 2,592 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 840 ft | +1,752 ft |
| SANTA ROSA | 843 ft | +1,749 ft |
| YATES | 2,067 ft | +525 ft |
| YATES | 2,084 ft | +508 ft |
| QUEEN | 3,167 ft | -575 ft |
| QUEEN | 3,202 ft | -610 ft |
| GRAYBURG | 3,426 ft | -834 ft |
| GRAYBURG | 3,443 ft | -851 ft |
| SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres) | 3,488 ft | -896 ft |
| SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres) | 3,505 ft | -913 ft |
| SPRABERRY | 6,601 ft | -4,009 ft |
| SPRABERRY | 6,605 ft | -4,013 ft |
| DEAN | 8,150 ft | -5,558 ft |
| DEAN | 8,167 ft | -5,575 ft |
| WOLFCAMP | 8,350 ft | -5,758 ft |
| CISCO | — | — |
| PENNSYLVANIAN | — | — |
| WOLFCAMP | — | — |
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 |
|---|---|
| 8,778–19,130 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,120 ft | 910 sx |
| 9.625" | 7,357 ft | 2,131 sx |
| 5.5" | 19,254 ft | 2,942 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 2 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
- 2166DH
- Max Depth
- 10,000 ft
- Drill Type
- Horizontal
- County
- MARTIN
- District
- 8
- Operator
- XTO ENERGY INC.
- Completed
- 2021-07-27
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