42-135-20419
RATLIFF SALLIE -A-
ECTOR County · District 8 · COG OPERATING LLC · HEADLEE N. (DEVONIAN)
Permits
1
Max Depth
5,150 ft
First Permit
1978-01-12
Latest Activity
1978-01-12
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1977-09-24
Shut-In
—
Plugged
2018-10-18
EWA / Permit operator mismatch
Scheduling: COG OPERATING LLC ≠ Permit: FIELDS, BERT, JR.
Resolved via: scheduling → COG OPERATING LLC
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
2019-02
Injection / Disposal
ECTOR County disposal market →Permitted Volume
2,500 bbl/d
Max Pressure
1,500 psi
Injection Interval
5,090–5,153 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2018-10-01)
Operator History
originally filed by FIELDS, BERT, JR. — asset transferred
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (3) Elevation 2,999 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ANHYDRITE | 1,915 ft | +1,084 ft |
| YATES | 3,180 ft | -181 ft |
| SAN ANDRES | 4,752 ft | -1,753 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 |
|---|---|
| 5,090–5,153 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 286 ft | 125 sx |
| 4.5" | 5,090 ft | — |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing 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
- 1-W
- Max Depth
- 5,150 ft
- Drill Type
- Vertical
- County
- ECTOR
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 1977-09-24
Operator
- Name
- COG OPER LLC
- Location
- MIDLAND
- P-5 Status
- X (filed 2026-06-02)
- Cum Oil (all leases)
- 645,285,792 bbl
- Cum Gas (all leases)
- 305,183,488 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 4,550