42-329-00390
UDORA ROBERTS RANCH UNIT
MIDLAND County · District 8 · OXY USA INC. · WAR-SAN (PENNSYLVANIAN)
Permits
2
Max Depth
13,220 ft
First Permit
1985-10-09
Latest Activity
1986-03-03
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: OXY USA INC. ≠ Production: CONTINENTAL RESOURCES, INC. (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: OXY USA INC. ≠ Permit: CITIES SERVICE OIL & GAS CORP.
Resolved via: production → CONTINENTAL RESOURCES, 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
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
No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.
Perforations (4)
| Interval | Type |
|---|---|
| 12,475–12,527 ft | Perforated |
| 12,926–12,962 ft | Perforated |
| ?–10,396 ft | Perforated |
| ?–13,146 ft | Perforated |
Casing (7)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 308 ft | 265 sx |
| 13.375" | 308 ft | — |
| 9.625" | 4,752 ft | 2,800 sx |
| 9.625" | 4,752 ft | — |
| 5.5" | 13,146 ft | 400 sx |
| 5.5" | 13,146 ft | 400 sx |
| 5.5" | 13,146 ft | — |
Permit History (2)
Applications (2)
Records & Logs
7 completion filings on record.
+1 more filings
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
- 4503
- Max Depth
- 13,220 ft
- Drill Type
- Vertical
- County
- MIDLAND
- District
- 8
- Operator
- OXY USA INC.
Operator
- Name
- OXY USA INC
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-01-26)
- Cum Oil (all leases)
- 277,250,617 bbl
- Cum Gas (all leases)
- 814,544,078 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 3,294