42-435-33747
Final CompletionMAYFIELD 40
SUTTON County · District 7 · AMERICAN EXPLORATION COMPANY · SAWYER (STRAWN)
Permits
3
Max Depth
8,700 ft
First Permit
1991-02-28
Latest Activity
1991-06-14
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1991-04-19
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: AMERICAN EXPLORATION COMPANY ≠ Production: UPP OPERATING, LLC (reported 2026-04)
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
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 2,240 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MARG TOP | 5,250 ft | -3,010 ft |
| FRIO TOP (Frio) | 5,256 ft | -3,016 ft |
| CANYON TOP (Canyon) | 6,150 ft | -3,910 ft |
| CANYON BTM (Canyon) | 7,300 ft | -5,060 ft |
| STRAWN (TOP) (Strawn) | 7,769 ft | -5,529 ft |
| STRAWN (BTM) (Strawn) | 7,948 ft | -5,708 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 (3)
| Interval | Type |
|---|---|
| 5,250–5,253 ft | Perforated |
| 7,108–7,297 ft | Perforated |
| 7,722–7,944 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,545 ft | 885 sx |
| 8.625" | 2,000 ft | 650 sx |
| 5.5" | 5,370 ft | 900 sx |
| 4.5" | 8,132 ft | 615 sx |
| 16" | — | 200 sx |
Permit History (3)
Applications (3)
Records & Logs
5 completion filings on record · 2 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
- 4
- Max Depth
- 8,700 ft
- Drill Type
- Vertical
- County
- SUTTON
- District
- 7
- Operator
- AMERICAN EXPLORATION COMPANY
- Completed
- 1991-04-19
Operator
- Name
- AMERICAN EXPL CO
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 1997-10-08)
- Cum Oil (all leases)
- 5,371,670 bbl
- Cum Gas (all leases)
- 107,561,692 mcf
- Total Permits
- 575