42-383-39903
PRODUCING HorizontalROCK HOLLOW D
REAGAN County · District 7 · DISCOVERY NATURAL RESOURCES LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
7,800 ft
First Permit
2017-06-16
Latest Activity
2017-06-16
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2018-04-30
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
2012-05
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 (8) Elevation 2,616 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN | 1,718 ft | +898 ft |
| GRAYBURG | 1,900 ft | +716 ft |
| SAN ANDRES - SALTWATER FLOW, POS (San Andres) | 2,294 ft | +322 ft |
| CLEARFORK (Clear Fork) | 3,501 ft | -885 ft |
| SPRABERRY | 5,116 ft | -2,500 ft |
| ELLENBURGER | — | — |
| FUSSELMAN | — | — |
| STRAWN | — | — |
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 |
|---|---|
| 7,135–16,666 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 837 ft | 800 sx |
| 9.625" | 5,890 ft | 340 sx |
| 5.5" | 16,731 ft | 3,000 sx |
Permit History (1)
Applications (1)
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
- 1851AS
- Max Depth
- 7,800 ft
- Drill Type
- Horizontal
- County
- REAGAN
- District
- 7
- Operator
- DISCOVERY NATURAL RESOURCES LLC
- Completed
- 2018-04-30
Operator
- Location
- DENVER
- P-5 Status
- Active (filed 2026-01-12)
- Cum Oil (all leases)
- 51,732,063 bbl
- Cum Gas (all leases)
- 23,685,198 mcf
- Activities
- G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 430