42-391-00282
Final CompletionWILLIAMS, MAUDE ETAL -A-
REFUGIO County · District 2 · HILCORP ENERGY COMPANY
Permits
6
Max Depth
6,200 ft
First Permit
2008-05-27
Latest Activity
2022-04-27
Lifespan
14 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
Injection / Disposal
Permitted Volume
15,000 bbl/d
Max Pressure
1,515 psi
Injection Interval
3,130–4,050 ft
Injected (12mo)
1,052,095 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-10-01)
Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (13) Elevation 56 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SURFACE SAND CLAY | 1,500 ft | -1,444 ft |
| LARGARTO (Lagarto) | 2,750 ft | -2,694 ft |
| LARGETO | 2,750 ft | -2,694 ft |
| OAKVILLE | 3,300 ft | -3,244 ft |
| CATAHOULA | 3,673 ft | -3,617 ft |
| CATAHOULA (MIOCENE) (Catahoula) | 4,100 ft | -4,044 ft |
| ANAHUAC (MIOCENE) (Anahuac) | 4,365 ft | -4,309 ft |
| FRIO | 4,367 ft | -4,311 ft |
| FRIO - GRETA (Frio) | 4,785 ft | -4,729 ft |
| FRIO-GRETA (OLIG) (Frio) | 4,785 ft | -4,729 ft |
| MIDDLE FRIO (SINTON) (Frio) | 5,400 ft | -5,344 ft |
| LOWER FRIO (OLIG) (Frio) | 6,200 ft | -6,144 ft |
| JACKSON/YEGUA (Jackson) | — | — |
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 |
|---|---|
| 3,680–3,730 ft | Perforated |
| 3,900–3,950 ft | Perforated |
| 4,418–4,442 ft | Perforated |
| 5,208–5,214 ft | Perforated |
| 5,395–4,501 ft | Perforated |
| 5,643–5,649 ft | Perforated |
| 5,674–5,682 ft | Perforated |
| ?–5,352 ft | Perforated |
| ?–5,747 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,533 ft | 550 sx |
| 5.5" | 5,857 ft | 1,025 sx |
Permit History (6)
WILLIAMS, MAUDE ETAL -A- · 6,200 ft
2022-04-27
Spud 2022-04-11
MAUDE WILLIAMS ET AL 'A' · 6,200 ft
2016-10-26
Spud 2012-09-05
MAUDE WILLIAMS ET AL 'A' · 6,200 ft
2012-08-29
MAUDE WILLIAMS ET AL "A" · 6,200 ft
2010-05-26
MAUDE WILLIAMS ET AL "A" · 6,200 ft
2010-05-26
MAUDE WILLIAMS ET AL "A" · 6,200 ft
2008-05-27
Spud 2008-04-23
Applications (6)
Records & Logs
12 completion filings on record · 1 with log images at RRC.
+6 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 21
- Max Depth
- 6,200 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