Well 401H, BIG BERTHA 0310 F, Upton County, Texas
API 46143008 — recorded on 1 lease.
Well API 46143008 is recorded on the BIG BERTHA 0310 F lease in Upton County, Texas, operated by FIREBIRD ENERGY II LLC. The state files a total depth of 9,070 ft, a last completion filed Jan 14 2026, 1 drilling permit and 1 hydraulic fracturing disclosure. The state holds no plugging record for it.
Leases
| Lease | Well no. | Operator | Field | Schedule |
|---|---|---|---|---|
| BIG BERTHA 0310 F | 401H | FIREBIRD ENERGY II LLC | SPRABERRY (TREND AREA) | Off |
The hole
- Total depth
- 9,070 ft
- Casing strings
- 4
- Deepest casing
- 19,895 ft
- Survey
- T&P RR CO/ODESSA RANCH CO
- Abstract
- 1483
- Block / section
- 42 T4S / 46
- Plugging records
- not filed
- Bottom hole location
- 31.54827, -102.26226
Drilling permits
From the Railroad Commission's drilling permit master — the application record, not a record of drilling. A permit is an application the Commission filed and numbered; the spud date is the only field here that says a hole was started. This file carries no approval status, so none is shown.
| Permit | Issued | Type | Lease | Depth | Spud |
|---|---|---|---|---|---|
| 903630 | Oct 30 2024 | Drillhorizontal | BIG BERTHA 0310 Fno. 401H | 9,100 ft | May 16 2025 |
What the lease produced
Texas reports oil and gas by lease, never by wellbore, so this is the whole lease. Values are volume multiplied by the published monthly price, the same arithmetic the lease page shows in full.
Hydraulic fracturing
Disclosed to FracFocus, the registry Texas designates by statute (Natural Resources Code §91.851; 16 TAC §3.29). FracFocus is run by the Ground Water Protection Council and the Interstate Oil and Gas Compact Commission, not by a state agency — but the filing itself is required by Texas rule.