WELL · 42-495-32221 · DISTRICT 8
Underwood #1
Winkler County · Keystone (Colby) field · Producing · Directional
Underwood #1 (API 42-495-32221) is a well in Winkler County operated by Basin Oil & Gas Operating LLC, completed July 5, 1989 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued November 10, 1988, permitted to 3,470 ft.
It was permitted by Arrington,David H. Oil & Gas,Inc and has since transferred to Basin Oil & Gas Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Tansil, Yates, Queen.
Its lease has reported 226K barrels of oil and 403K mcf of gas since January 1993, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Arrington,david H. Oil & Gas,inc; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 21, 2026
- Permits on file
- 150
- Phone
- (817) 820-8910
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Basin Oil & Gas Operating LLC |
| Production reports | Basin Oil & Gas Operating, LLCthrough Mar 2026 |
| Latest permit | Arrington,david H. Oil & Gas,incNov 10, 1988 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,470
- total depth, ft
- 2
- permits on file
- Nov 10, 1988
- last permit issued
- Jul 5, 1989
- completed
- 226K
- cumulative oil, bbl
- 403K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 5, 1989
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Underwood O-10-32345 | Keystone (Colby) | Basin Oil & Gas Operating, LLC | 3 | 226K | 403K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2,007 · prior 12 2,822(-29%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Arrington,david H. Oil & Gas,incJan 1993 → Mar 1995
- 2Arrington, David H TX & NM IncApr 1995 → Aug 1995
- 3Magnum Hunter Production, Inc.Sep 1995 → May 1997
- 4Gruy Petroleum Management Co.Jun 1997 → Apr 2001
- 5Just Oil & Gas, Inc.May 2001 → Apr 2005
- 6Endeavor Energy Resources L.P.May 2005 → Jan 2021
- 7Oak Prairie Operations, LLCFeb 2021 → Aug 2024
- 8Basin Oil & Gas Operating, LLCSep 2024 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 353216-98 | Drill | Arrington,david H. Oil & Gas,inc | May 24, 1989 | Nov 10, 1988 | May 29, 1989 | 3,500 |
| 353216-99 | Drill | Arrington,david H. Oil & Gas,inc | Nov 10, 1988 | Nov 10, 1988 | — | 3,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 5, 1989 | Underwood O-10-32345 | Keystone (Colby) | Basin Oil & Gas Operating LLC | Producing | 3,470 |
Formation tops
As filed on W-2/G-1. Subsea from 2,849 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,218 | 3,317 | Perforated |
| 3,377 | 3,398 | Perforated |
| 3,400 | 3,412 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,162 | 12.25 | 650 S |
| 5.5 | 3,470 | 7.875 | 300 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 | Nov 5, 1990 | Oct 5, 1990 | — |
| 00 | Oct 6, 1989 | Jul 18, 1989 | Yes |
| 00 | Sep 12, 1989 | — | — |
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 42-495-32221 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-32221 → 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/49532221, documented in the API reference.