Well 4WB, HEIDELBERG 30-31 J, Martin County, Texas
API 31746862 — recorded on 1 lease.
Well API 31746862 is recorded on the HEIDELBERG 30-31 J lease in Martin County, Texas, operated by DIAMONDBACK E&P LLC. The state files a total depth of 8,843 ft, a last completion filed Jan 23 2026, 1 drilling permit and 1 hydraulic fracturing disclosure. The state holds no plugging record for it.
Leases
| Lease | Well no. | Operator | Field | Schedule |
|---|---|---|---|---|
| HEIDELBERG 30-31 J | 4WB | DIAMONDBACK E&P LLC | SPRABERRY (TREND AREA) | Off |
The hole
- Total depth
- 8,843 ft
- Casing strings
- 8
- Deepest casing
- 19,303 ft
- Survey
- T&P RR CO
- Abstract
- 50
- Block / section
- 35 T1N / 19
- Plugging records
- not filed
- Bottom hole location
- 32.20477, -101.78502
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 |
|---|---|---|---|---|---|
| 9086612 records | Jul 17 2025 | Drillhorizontal | HEIDELBERG 30-31 Jno. 4WB | 12,500 ft | Aug 4 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.