42-391-04014
Unperfed CompletionWILLIAMS, MAUDE ET AL 'A'
REFUGIO County · District 2 · HILCORP ENERGY COMPANY
Permits
5
Max Depth
5,800 ft
First Permit
1980-07-03
Latest Activity
2017-06-28
Lifespan
37 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
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
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (12) Elevation 54 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LARGARTO (Lagarto) | 1,500 ft | -1,446 ft |
| E-264 | 2,660 ft | -2,606 ft |
| OAKVILLE | 2,750 ft | -2,696 ft |
| CATAHOULA (MIOCENE) (Catahoula) | 3,300 ft | -3,246 ft |
| CATAHOULA | 3,690 ft | -3,636 ft |
| ANAHUAC (MIOCENE) (Anahuac) | 4,100 ft | -4,046 ft |
| FRIO | 4,365 ft | -4,311 ft |
| FRIO-GRETA (OLIGOCENE) (Frio) | 4,365 ft | -4,311 ft |
| MIDDLE FRIO (SINTON) (Frio) | 5,000 ft | -4,946 ft |
| LOWER FRIO (OLIGOCENE) (Frio) | 5,800 ft | -5,746 ft |
| JACKSON/YEGUA (Jackson) | — | — |
| NO CHANGE | — | — |
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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (9)
| Interval | Type |
|---|---|
| 2,774–2,786 ft | Perforated |
| 2,806–2,814 ft | Perforated |
| 4,368–4,374 ft | Perforated |
| 4,379–4,388 ft | Perforated |
| 4,390–4,396 ft | Perforated |
| 4,484–4,489 ft | Perforated |
| 5,162–5,166 ft | Perforated |
| 5,311–5,319 ft | Perforated |
| ?–5,225 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 12.25" | 1,504 ft | 450 sx |
| 8.625" | 1,504 ft | 450 sx |
| 2.375" | 5,168 ft | — |
| 7.875" | 5,789 ft | 1,000 sx |
| 5.5" | 5,789 ft | 1,000 sx |
Permit History (5)
WILLIAMS, MAUDE ET AL 'A' · 5,800 ft
2017-06-28
Spud 2017-06-22
WILLIAMS, MAUDE, ETAL "A" · 5,800 ft
2007-05-25
WILLIAMS, MAUDE ET AL "A" · 5,800 ft
1996-06-28
Spud 1996-07-02
WILLIAMS, MAUDE ET AL "A" · 5,800 ft
1990-03-12
WILLIAMS, MAUDE ET AL "A" · 5,789 ft
1980-07-03
Applications (5)
Records & Logs
8 completion filings on record · 2 with log images at RRC.
+2 more filings
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.
Well Details
- Well Number
- D 40
- Max Depth
- 5,800 ft
- Drill Type
- Vertical
- County
- REFUGIO
- District
- 2
- Operator
- HILCORP ENERGY COMPANY
Operator
- Name
- HILCORP ENGY CO
- Location
- HOUSTON
- P-5 Status
- X (filed 2026-03-27)
- Cum Oil (all leases)
- 75,699,281 bbl
- Cum Gas (all leases)
- 1,779,939,645 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,428