WELL · 42-443-31308 · DISTRICT 7
Brown Bassett #12
Terrell County · Brown-Bassett (Wolfcamp) field · Producing · Vertical
Brown Bassett #12 (API 42-443-31308) is a well in Terrell County operated by Longfellow Energy LP, completed December 20, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 11, 2008, permitted to 6,400 ft.
It was permitted by Encore Operating, L.P. and has since transferred to Longfellow Energy LP on the wellbore schedule.
Completion filings report 2 formation tops, including Wolfcamp, Base Productive Zone.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Encore Operating, L.P.; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Dec 4, 2025 · 37 permits on file · (405) 306-6169
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Longfellow Energy LP |
| Production reports | Longfellow Energy, LPthrough Dec 2025 |
| Latest permit | Encore Operating, L.P.Oct 11, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,400
- total depth, ft
- 1
- permits on file
- Oct 11, 2008
- last permit issued
- Dec 20, 2008
- completed
- 0
- cumulative oil, bbl
- 281K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 20, 2008
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Brown Bassett G-9-247180 | Brown-Bassett (Wolfcamp) | Longfellow Energy, LP | 1 | 0 | 281K | Dec 2008 – Jul 2026 |
Gas, mcf lease total
Last 12 months 530 · prior 12 503(+5%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Encore Operating, L.P.Dec 2008 → Jun 2009
- 2Mobil Producing TX. & N.M. Inc.Jul 2009 → Dec 2011
- 3XTO Energy Inc.Jan 2012 → May 2020
- 4Longfellow Energy, LPJul 2022 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 672363-99 | Drill | Encore Operating, L.P. | Oct 2, 2008 | Oct 11, 2008 | Dec 3, 2008 | 6,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-247180 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,437 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,487 | 5,493 | Perforated |
| 5,736 | 5,742 | Perforated |
| 6,034 | 6,196 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,486 | 12.25 | 610 S |
| 4.5 | 6,501 | 7.875 | 550 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 10, 2009 | Jan 12, 2009 | Yes |
| 00 | May 21, 2009 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-443-31308 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-443-31308 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/44331308, documented in the API reference.