42-163-34181
PRODUCING HorizontalMCWILLIAMS-O NEILL EF
FRIO County · District 1 · TRAILBLAZER ENERGY RESOURCES LLC · BRISCOE RANCH (EAGLEFORD)
Permits
1
Max Depth
7,500 ft
First Permit
2019-03-01
Latest Activity
2019-03-01
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2019-07-08
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: TRAILBLAZER ENERGY RESOURCES LLC ≠ Permit: VIRTEX OPERATING COMPANY, INC.
Resolved via: production → TRAILBLAZER ENERGY RESOURCES,LLC
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
2019-07
Last Production
2026-07
Operator History
Chain of Custody
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (10) Elevation 524 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN CITY | 2,020 ft | -1,496 ft |
| NAVARRO | 2,648 ft | -2,124 ft |
| ESCONDIDO | 3,021 ft | -2,497 ft |
| OLMOS | 4,019 ft | -3,495 ft |
| ANACACHO | 5,050 ft | -4,526 ft |
| AUSTIN CHALK - H2S (Austin Chalk) | 5,416 ft | -4,892 ft |
| EAGLE FORD - H2S (Eagle Ford) | 5,768 ft | -5,244 ft |
| BUDA - H2S (Buda) | — | — |
| GEORGETOWN - H2S (Georgetown) | — | — |
| PEARSALL | — | — |
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 |
|---|---|
| 6,274–13,982 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 2,800 ft | 761 sx |
| 4" | 13,992 ft | 260 sx |
| 5.5" | 14,155 ft | 3,007 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing on record · 1 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
- 1H
- Max Depth
- 7,500 ft
- Drill Type
- Horizontal
- County
- FRIO
- District
- 1
- Operator
- TRAILBLAZER ENERGY RESOURCES LLC
- Completed
- 2019-07-08
Operator
- Location
- TULSA
- P-5 Status
- Active (filed 2025-10-16)
- Cum Oil (all leases)
- 2,366,578 bbl
- Cum Gas (all leases)
- 3,279,529 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 28