42-329-10017
Final CompletionDORA ROBERTS RANCH UNIT
MIDLAND County · District 8 · OXY USA INC. · DORA ROBERTS (PENNSYLVANIAN)
Permits
1
Max Depth
12,200 ft
First Permit
1984-06-21
Latest Activity
1984-06-21
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1984-10-16
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
Injection / Disposal
MIDLAND County disposal market →Permitted Volume
—
Max Pressure
—
Injection Interval
—
Injected (12mo)
—
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 (8)
CSV| Formation | Top Depth (MD) |
|---|---|
| SPRABERRY | 7,814 ft |
| DEAN | 8,878 ft |
| WOLFCAMP | 8,949 ft |
| STRAWN | 9,887 ft |
| ATOKA | 10,113 ft |
| PENNSYLVANIAN | 10,295 ft |
| MISSISSIPPIAN | 10,700 ft |
| DEVONIAN | 11,362 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. View filings & logs at RRC ↗
Perforations (1)
| Interval | Type |
|---|---|
| 10,295–10,511 ft | Perforated |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 387 ft | 450 sx |
| 13.375" | 387 ft | — |
| 8.625" | 2,100 ft | 2,000 sx |
| 8.625" | 2,100 ft | — |
| 5.5" | 12,197 ft | 450 sx |
| 5.5" | 12,197 ft | — |
Permit History (1)
Applications (1)
Records & Logs
5 completion filings on record.
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
- 503
- Max Depth
- 12,200 ft
- Drill Type
- Vertical
- County
- MIDLAND
- District
- 8
- Operator
- OXY USA INC.
- Completed
- 1984-10-16
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
- 3,279