Well 1, TUBB ESTATE "21", Winkler County, Texas
API 49531979 — recorded on 4 leases.
Leases
| Lease | Well no. | Operator | Field | Schedule |
|---|---|---|---|---|
| TUBB ESTATE "21" | 1 | HERITAGE RESOURCES, INC. | CRITTENDON (FUSSELMAN) | On |
| TUBB ESTATE 21 | 1 | IMPETRO OPERATING LLC | CRITTENDON (MORROW) | On |
| GRIZZLY A | 1H | MATADOR PRODUCTION COMPANY | PHANTOM (WOLFCAMP) | Off |
| GRIZZLY | 1H | IMPETRO OPERATING LLC | PHANTOM (WOLFCAMP) | On |
The hole
- Total depth
- 12,574 ft
- Casing strings
- 10
- Deepest casing
- 16,917 ft
- Survey
- PSL/COWDEN, C C & L
- Abstract
- 1391
- Block / section
- C23 / 21
- Plugging records
- not filed
- Bottom hole location
- 31.97751, -103.29332
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 |
|---|---|---|---|---|---|
| 819170 | Oct 24 2016 | Recompletionhorizontal | GRIZZLYno. 1H | 12,300 ft | Nov 13 2016 |
| 455141 | Nov 18 1996 | Recompletion | TUBB ESTATE "21"no. 1 | 19,706 ft | Nov 21 1996 |
| 304172 | Jul 16 1986 | Drill | TUBB ESTATE "21"no. 1 | 19,706 ft | not filed |
| 286523 | Oct 4 1985 | Drill | TUBB ESTATE "21"no. 1 | 22,000 ft | Nov 7 1985 |
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.