42-165-32846
PRODUCINGWASSON SOUTH CLEARFORK UNIT
GAINES County · District 8 · OCCIDENTAL PERMIAN LTD. · WASSON 72
Permits
1
Max Depth
7,800 ft
First Permit
1984-05-23
Latest Activity
1984-05-23
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1984-09-18
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: OCCIDENTAL PERMIAN LTD. ≠ Permit: SHELL WESTERN E&P INC.
Resolved via: production → OCCIDENTAL PERMIAN LTD.
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
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 (13) Elevation 3,540 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 2,040 ft | +1,500 ft |
| SALADO | 2,087 ft | +1,453 ft |
| TANSIL | 2,776 ft | +764 ft |
| YATES | 2,852 ft | +688 ft |
| SEVEN RIVERS | 3,004 ft | +536 ft |
| QUEEN | 3,333 ft | +207 ft |
| GRAYBURG | 4,018 ft | -478 ft |
| SAN ANDRS | 4,265 ft | -725 ft |
| GLORIETA | 5,674 ft | -2,134 ft |
| U. CLEARFORK | 5,916 ft | -2,376 ft |
| TUBB | 6,988 ft | -3,448 ft |
| L. CLEARFORK | 7,070 ft | -3,530 ft |
| WICHITA (Wichita-Albany) | 7,568 ft | -4,028 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 (1)
| Interval | Type |
|---|---|
| 5,924–7,353 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 388 ft | 400 sx |
| 9.625" | 3,352 ft | 1,250 sx |
| 5.5" | 7,630 ft | 1,800 sx |
Permit History (1)
Applications (2)
Records & Logs
2 completion filings on record.
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.
No GPS coordinates yet
Well Details
- Well Number
- 8520S
- Max Depth
- 7,800 ft
- Drill Type
- Vertical
- County
- GAINES
- District
- 8
- Operator
- OCCIDENTAL PERMIAN LTD.
- Completed
- 1984-09-18
Operator
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-02-02)
- Cum Oil (all leases)
- 1,136,409,534 bbl
- Cum Gas (all leases)
- 442,977,611 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 6,246