42-353-01140
Final CompletionCOX E. S.
NOLAN County · District 7 · GRAYROCK ENERGY II LLC · LAKE TRAMMEL (STRAWN REEF)
Permits
1
Max Depth
6,950 ft
First Permit
1992-06-18
Latest Activity
1992-06-18
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1992-06-30
Shut-In
—
Plugged
2012-01-26
EWA / Production operator mismatch
Scheduling: GRAYROCK ENERGY II LLC ≠ Production: BROTHERS OPERATING COMPANY INC. (reported 2001-08)
EWA / Permit operator mismatch
Scheduling: GRAYROCK ENERGY II LLC ≠ Permit: ELDORADO OIL AND GAS, INC.
Resolved via: scheduling → GRAYROCK ENERGY II 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
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 2,515 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| PALO PINTO | 5,885 ft | -3,370 ft |
| UPPER CAPPS | 6,350 ft | -3,835 ft |
| STRAWN REEF (Strawn) | 6,428 ft | -3,913 ft |
| CADDO | 6,893 ft | -4,378 ft |
| MISSISSIPPIAN | 6,952 ft | -4,437 ft |
| ELLENBURGER | 6,970 ft | -4,455 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 (2)
| Interval | Type |
|---|---|
| 6,428–6,448 ft | Perforated |
| ?–6,970 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 429 ft | 375 sx |
| 5.5" | 6,975 ft | 550 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
- 1
- Max Depth
- 6,950 ft
- Drill Type
- Vertical
- County
- NOLAN
- District
- 7
- Operator
- GRAYROCK ENERGY II LLC
- Completed
- 1992-06-30
Operator
- Location
- FORT WORTH
- P-5 Status
- Active (filed 2025-10-16)
- Cum Oil (all leases)
- 1,537,532 bbl
- Cum Gas (all leases)
- 35,084 mcf
- Activities
- OPRS/G, OPRS/O