Permits
8
Max Depth
7,563 ft
First Permit
1978-02-21
Latest Activity
2010-12-15
Lifespan
33 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 (15) Elevation 72 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LARGARTO (Lagarto) | 1,500 ft | -1,428 ft |
| LARGARTO (Lagarto) | 2,750 ft | -2,678 ft |
| OAKVILLE | 2,750 ft | -2,678 ft |
| CATAHOULA (MIOCENE) (Catahoula) | 3,300 ft | -3,228 ft |
| OAKVILLE | 3,300 ft | -3,228 ft |
| ANAHUAC (MIOCENE) (Anahuac) | 4,100 ft | -4,028 ft |
| CATAHOULA(MIOCENE) (Catahoula) | 4,100 ft | -4,028 ft |
| ANAHUAC(MIOCENE) (Anahuac) | 4,365 ft | -4,293 ft |
| FRIO-GRETA (Frio) | 4,365 ft | -4,293 ft |
| FRIO-GRETA(OLIG) (Frio) | 4,785 ft | -4,713 ft |
| MIDDLE FRIO (SINTON) (Frio) | 5,000 ft | -4,928 ft |
| MIDDLE FRIO(SINTON) (Frio) | 5,400 ft | -5,328 ft |
| LOWER FRIO (OLIGOCENE) (Frio) | 5,880 ft | -5,808 ft |
| LOWER FRIO (OLIGOCENE) (Frio) | 7,563 ft | -7,491 ft |
| 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 ↗
Perforations (8)
| Interval | Type |
|---|---|
| 5,350–5,355 ft | Perforated |
| 5,504–5,514 ft | Perforated |
| 5,631–5,640 ft | Perforated |
| 5,880–5,884 ft | Perforated |
| 5,918–5,921 ft | Perforated |
| 6,941–? ft | Perforated |
| ?–5,921 ft | Perforated |
| ?–6,945 ft | Perforated |
Casing (8)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,547 ft | 720 sx |
| 9.625" | 1,548 ft | 720 sx |
| 9.625" | 1,548 ft | 720 sx |
| 1.5" | 5,851 ft | — |
| 1.5" | 5,890 ft | — |
| 5.5" | 7,569 ft | 1,670 sx |
| 5.5" | 7,570 ft | 170 sx |
| 5.5" | 7,570 ft | 1,670 sx |
Permit History (8)
MAUDE WILLIAMS ET AL "A" · 7,563 ft
2010-12-15
MAUDE WILLIAMS ET AL "A" · 7,563 ft
2009-09-01
Spud 2009-10-22
WILLIAMS, MAUDE ET AL "A" · 7,563 ft
2007-06-29
Spud 2007-07-06
LAKE PASTURE (FT-569) FIELD UNIT · 7,563 ft
2007-06-29
LAKE PASTURE (FS-550) SAND UNIT · 7,563 ft
1996-09-04
Spud 1996-09-24
WILLIAMS, MAUDE ET AL "A" · 7,563 ft
1985-02-19
WILLIAMS, MAUDE ET AL "A" · 7,563 ft
1981-03-10
WILLIAMS, MAUDE, ET AL "A" · 7,563 ft
1978-02-21
Applications (8)
Records & Logs
13 completion filings on record · 3 with log images at RRC.
+7 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.
No GPS coordinates yet
Well Details
- Well Number
- D 83
- Max Depth
- 7,563 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