42-163-34141
PRODUCING HorizontalMONTE LENOSO
FRIO County · District 1 · U.S. ENERGY DEVELOPMENT CORP · BRISCOE RANCH (EAGLEFORD)
Permits
2
Max Depth
6,500 ft
First Permit
2018-10-12
Latest Activity
2018-10-12
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2019-08-05
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
2018-11
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 (10) Elevation 615 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ESCONDIDO | 3,134 ft | -2,519 ft |
| OLMOS | 4,084 ft | -3,469 ft |
| ANACACHO | 4,931 ft | -4,316 ft |
| AUSTIN CHALK - H2S (Austin Chalk) | 5,362 ft | -4,747 ft |
| EAGLE FORD - H2S (Eagle Ford) | 5,810 ft | -5,195 ft |
| BUDA - H2S (Buda) | — | — |
| GEORGETOWN - H2S (Georgetown) | — | — |
| NAVARRO | — | — |
| PEARSALL | — | — |
| QUEEN CITY | — | — |
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 (1)
| Interval | Type |
|---|---|
| 6,369–17,534 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 2,908 ft | 850 sx |
| 5.5" | 17,573 ft | 2,675 sx |
Permit History (2)
Applications (2)
Records & Logs
2 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.
Well Details
- Well Number
- B 4EF
- Max Depth
- 6,500 ft
- Drill Type
- Horizontal
- County
- FRIO
- District
- 1
- Operator
- U.S. ENERGY DEVELOPMENT CORP
- Completed
- 2019-08-05
Operator
- Name
- U.S. ENGY DEV CORP
- Location
- FORT WORTH
- P-5 Status
- Active (filed 2026-02-18)
- Cum Oil (all leases)
- 14,882,303 bbl
- Cum Gas (all leases)
- 30,585,425 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 223