42-329-41969
YWILLIS 40B
MIDLAND County · District 8 · OXYROCK OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
12,000 ft
First Permit
2017-09-13
Latest Activity
2017-09-13
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2018-03-22
Shut-In
—
Plugged
—
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
2018-03
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 2,710 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,516 ft | +194 ft |
| GRAYBURG | 4,224 ft | -1,514 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,800 ft | -2,090 ft |
| CANYON-STRAWN (Canyon) | — | — |
| ELLENBURGER | — | — |
| FUSSELMAN | — | — |
| PENNSYLVANIAN | — | — |
| QUEEN | — | — |
| SANTA ROSA | — | — |
| SEVEN RIVERS | — | — |
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 |
|---|---|
| 7,983–10,714 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 368 ft | 350 sx |
| 8.625" | 5,631 ft | 1,250 sx |
| 5.5" | 10,890 ft | 1,500 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 can't be deep-linked — clicking copies the API for you to paste.
Well Details
- Well Number
- 5
- Max Depth
- 12,000 ft
- Drill Type
- Vertical
- County
- MIDLAND
- District
- 8
- Operator
- OXYROCK OPERATING LLC
- Completed
- 2018-03-22
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