42-435-35053
Final CompletionMAYFIELD 39
SUTTON County · District 7 · ENERVEST OPERATING L.L.C. · SAWYER (CANYON)
Permits
2
Max Depth
8,500 ft
First Permit
2000-01-27
Latest Activity
2013-09-18
Lifespan
14 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2000-03-02
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: ENERVEST OPERATING L.L.C. ≠ Production: UPP OPERATING, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: ENERVEST OPERATING L.L.C. ≠ Permit: HIGHMOUNT EXPL & PROD TEXAS LLC
Resolved via: production → UPP 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
2000-03
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 2,238 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BASE CRETACEOUS (Base Cretaceous (marker)) | 822 ft | +1,416 ft |
| LEONARD | 1,664 ft | +574 ft |
| WOLFCAMP | 3,405 ft | -1,167 ft |
| WOLFCAMP | 3,530 ft | -1,292 ft |
| CANYON | 7,139 ft | -4,901 ft |
| STRAWN | 7,763 ft | -5,525 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 |
|---|---|
| 3,710–4,639 ft | Perforated |
| 6,733–7,074 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,402 ft | 550 sx |
| 4.5" | 7,450 ft | 400 sx |
Permit History (2)
Applications (2)
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
- 15
- Max Depth
- 8,500 ft
- Drill Type
- Vertical
- County
- SUTTON
- District
- 7
- Operator
- ENERVEST OPERATING L.L.C.
- Completed
- 2000-03-02
Operator
- Name
- ENERVEST OPER, L.L.C
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-01-13)
- Cum Oil (all leases)
- 39,678,049 bbl
- Cum Gas (all leases)
- 1,492,558,001 mcf
- Activities
- CSGD/G, G/PUR, GTHS/G, OPRS/G
- Total Permits
- 1,249