42-317-41846
PRODUCINGRATTLESNAKE
MARTIN County · District 8 · OXYROCK OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
12,000 ft
First Permit
2018-10-17
Latest Activity
2018-10-17
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2019-07-10
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: OXYROCK OPERATING LLC ≠ Permit: CROWNQUEST OPERATING, LLC
Resolved via: production → OXYROCK OPERATING, LLC
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
2018-09
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 (10) Elevation 2,792 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,566 ft | +226 ft |
| GRAYBURG | 4,065 ft | -1,273 ft |
| SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres) | 4,252 ft | -1,460 ft |
| SPRABERRY | 7,496 ft | -4,704 ft |
| DEAN | 8,861 ft | -6,069 ft |
| WOLFCAMP | 9,072 ft | -6,280 ft |
| CISCO | — | — |
| PENNSYLVANIAN | — | — |
| QUEEN | — | — |
| SANTA ROSA | — | — |
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 |
|---|---|
| 8,030–11,408 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 292 ft | 375 sx |
| 8.625" | 5,139 ft | 1,150 sx |
| 5.5" | 11,584 ft | 1,200 sx |
Permit History (1)
Applications (1)
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
- 221
- Max Depth
- 12,000 ft
- Drill Type
- Vertical
- County
- MARTIN
- District
- 8
- Operator
- OXYROCK OPERATING LLC
- Completed
- 2019-07-10
Operator
- Name
- OXYROCK OPER, LLC
- Location
- HOUSTON
- P-5 Status
- X (filed 2026-04-22)
- Cum Oil (all leases)
- 64,850,483 bbl
- Cum Gas (all leases)
- 77,830 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 364