42-501-35432
PRODUCINGYOAKUM WASSON CLEARFORK UNIT
YOAKUM County · District 8 · OCCIDENTAL PERMIAN LTD. · WASSON 72
Permits
1
Max Depth
7,100 ft
First Permit
2007-05-18
Latest Activity
2007-05-18
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2023-05-09
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
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 (6) Elevation 3,569 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GRAYBURG | 4,007 ft | -438 ft |
| SAN ANDRES | 4,262 ft | -693 ft |
| GLORIETA | 5,620 ft | -2,051 ft |
| CLEARFORK, UPPER (Clear Fork) | 5,799 ft | -2,230 ft |
| CLEARFORK, MIDDLE (Clear Fork) | 6,097 ft | -2,528 ft |
| TUBB | 6,813 ft | -3,244 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 (4)
| Interval | Type |
|---|---|
| 5,688–5,693 ft | Perforated |
| 5,726–5,788 ft | Perforated |
| 5,820–5,911 ft | Perforated |
| 6,156–6,608 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 16" | 40 ft | 130 sx |
| 16" | 40 ft | 130 sx |
| 8.625" | 2,124 ft | 1,100 sx |
| 5.5" | 6,895 ft | 1,150 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 4521
- Max Depth
- 7,100 ft
- Drill Type
- Vertical
- County
- YOAKUM
- District
- 8
- Operator
- OCCIDENTAL PERMIAN LTD.
- Completed
- 2023-05-09
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
- 6,205