42-391-01449
LAMBERT M. F.
REFUGIO County · District 2 · H & D OPERATING COMPANY · TOM OCONNOR (5900 SAND)
Permits
8
Max Depth
6,003 ft
First Permit
1987-06-02
Latest Activity
2022-02-09
Lifespan
35 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1971-08-18
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: H & D OPERATING COMPANY ≠ Production: HILCORP ENERGY COMPANY (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: H & D OPERATING COMPANY ≠ Permit: HILCORP ENERGY COMPANY
Resolved via: production → HILCORP ENERGY COMPANY
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 (17) Elevation 49 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LARGARTO (Lagarto) | 1,500 ft | -1,451 ft |
| LARGARTO (Lagarto) | 2,750 ft | -2,701 ft |
| OAKVILLE | 2,750 ft | -2,701 ft |
| ANAHUAC | 3,300 ft | -3,251 ft |
| CATAHOULA (MIOCENE) (Catahoula) | 3,300 ft | -3,251 ft |
| OAKVILLE | 3,300 ft | -3,251 ft |
| ANAHUAC (MIOCENE) (Anahuac) | 4,100 ft | -4,051 ft |
| ANAHUAC | 4,365 ft | -4,316 ft |
| FRIO-GRETA (Frio) | 4,365 ft | -4,316 ft |
| FRIO-GRETA (OLIGOCENE) (Frio) | 4,365 ft | -4,316 ft |
| 4600 | 4,498 ft | -4,449 ft |
| MIDDLE FRIO (Frio) | 4,785 ft | -4,736 ft |
| MIDDLE FRIO (SINTON) (Frio) | 5,000 ft | -4,951 ft |
| 5500 | 5,516 ft | -5,467 ft |
| 5500 | 5,519 ft | -5,470 ft |
| TOC | 5,590 ft | -5,541 ft |
| LOWER FRIO (OLIGOCENE) (Frio) | 5,880 ft | -5,831 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 ↗
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 (11)
| Interval | Type |
|---|---|
| 4,498–4,503 ft | Perforated |
| 4,642–4,648 ft | Perforated |
| 5,012–5,017 ft | Perforated |
| 5,040–5,046 ft | Perforated |
| 5,049–5,055 ft | Perforated |
| 5,058–5,078 ft | Perforated |
| 5,517–5,519 ft | Perforated |
| 5,594–5,598 ft | Perforated |
| 5,628–5,632 ft | Perforated |
| 5,738–5,745 ft | Perforated |
| 5,868–5,870 ft | Perforated |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 5.5" | 876 ft | — |
| 9.625" | 1,017 ft | 650 sx |
| 9.625" | 1,017 ft | 650 sx |
| 5.5" | 1,893 ft | — |
| 5.5" | 5,207 ft | 428 sx |
| 5.5" | 5,207 ft | 428 sx |
Permit History (8)
LAMBERT, M.F. · 6,000 ft
2022-02-09
LAMBERT, M.F. · 6,000 ft
2022-02-09
Spud 2022-01-26
TOM O'CONNOR (5800 SD) FLD. UNIT · 6,000 ft
2009-08-05
Spud 2009-07-30
LAMBERT, M. F. · 5,210 ft
2003-05-14
Spud 2003-05-02
TOM O'CONNOR(5800 SAND)FLD. UNIT · 6,000 ft
1992-12-18
Spud 1992-12-18
LAMBERT, M. F. · 6,003 ft
1988-11-21
LAMBERT, M. F. · 6,003 ft
1988-02-18
LAMBERT, M. F. · 6,003 ft
1987-06-02
Applications (8)
Records & Logs
15 completion filings on record · 6 with log images at RRC.
+9 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
- H 1G
- Max Depth
- 6,003 ft
- Drill Type
- Vertical
- County
- REFUGIO
- District
- 2
- Operator
- H & D OPERATING COMPANY
- Completed
- 1971-08-18
Operator
- Name
- H & D OPER CO
- Location
- REFUGIO
- P-5 Status
- Inactive (filed 2014-05-21)
- Cum Oil (all leases)
- 3,092,123 bbl
- Cum Gas (all leases)
- 13,380,960 mcf
- Total Permits
- 46