42-329-31140
UMCALISTER -B-
MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · MID-MAR EAST (STRAWN)
Permits
2
Max Depth
12,000 ft
First Permit
1983-03-02
Latest Activity
1986-04-15
Lifespan
3 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1986-05-09
Shut-In
—
Plugged
2017-08-01
EWA / Production operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Production: ENDEAVOR ENERGY RESOURCES L.P. (reported 2014-11)
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: PHILLIPS PETROLEUM COMPANY
Resolved via: scheduling → PIONEER NATURAL RES. USA INC.
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
1993-01
Last Production
2021-06
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 (21) Elevation 2,728 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 1,680 ft | +1,048 ft |
| TANSILL | 2,443 ft | +285 ft |
| QUEEN | 3,163 ft | -435 ft |
| GRAYBURG | 3,864 ft | -1,136 ft |
| SAN ANDRES | 4,137 ft | -1,409 ft |
| GLORIETA | 5,143 ft | -2,415 ft |
| CLEAR FORK | 6,468 ft | -3,740 ft |
| CLEARFORK (Clear Fork) | 6,468 ft | -3,740 ft |
| U. SPRABERRY | 7,355 ft | -4,627 ft |
| L. SPRABERRY | 7,870 ft | -5,142 ft |
| WOLFCAMP | 8,250 ft | -5,522 ft |
| DEAN | 8,636 ft | -5,908 ft |
| STRAWN | 10,230 ft | -7,502 ft |
| ATOKA | 10,384 ft | -7,656 ft |
| MISS LIME (Mississippian) | 11,053 ft | -8,325 ft |
| WOODFORD | 11,153 ft | -8,425 ft |
| DEVONIAN | 11,212 ft | -8,484 ft |
| SILURIAN (Silurian (undifferentiated)) | 11,597 ft | -8,869 ft |
| FUSSELMAN | 11,660 ft | -8,932 ft |
| MONTOYA | 11,773 ft | -9,045 ft |
| SIMPSON | 11,890 ft | -9,162 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 ↗
Perforations (3)
| Interval | Type |
|---|---|
| 10,240–10,362 ft | Perforated |
| 11,720–11,724 ft | Perforated |
| 11,724–11,744 ft | Perforated |
Casing (9)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 351 ft | 350 sx |
| 13.375" | 353 ft | 350 sx |
| 9.625" | 4,970 ft | 1,300 sx |
| 9.625" | 4,973 ft | 1,000 sx |
| 9.625" | 4,973 ft | 1,300 sx |
| 2.875" | 11,648 ft | — |
| 5.5" | 12,003 ft | 1,300 sx |
| 5.5" | 12,009 ft | 500 sx |
| 5.5" | 12,009 ft | 1,400 sx |
Permit History (2)
Applications (2)
Records & Logs
4 completion filings on record · 1 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.
No GPS coordinates yet
Well Details
- Well Number
- 3
- Max Depth
- 12,000 ft
- Drill Type
- Vertical
- County
- MIDLAND
- District
- 8
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 1986-05-09
Operator
- Location
- Y SPRING
- P-5 Status
- Active (filed 2025-08-01)
- Cum Oil (all leases)
- 1,771,882,421 bbl
- Cum Gas (all leases)
- 1,763,727,021 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 15,435