TEXAS · WELLS · UPTON COUNTY · DARBY, B. S. LEASE · API 42-461-31512 · DISTRICT 6E
Darby B. S. #1
Upton County · King Mountain N. (Bend) field · Producing · Vertical
Darby B. S. #1 (API 42-461-31512) is a well in Upton County operated by Xto Energy Inc., completed September 26, 2006 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 1979 and 1980, permitted to 10,326 ft.
It was permitted by Flag-Redfern Oil Company and has since transferred to Xto Energy Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Yates, Leonard, Strawn.
Its lease has reported 19.4K barrels of oil and 560K mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Permitted by Flag-Redfern Oil Company; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 8, 2026
- Permits on file
- 16,156
- Phone
- (346) 502-1572
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | XTO Energy Inc. |
| Production reports | XTO Energy Inc.through Apr 2026 |
| Latest permit | Flag-Redfern Oil CompanyDec 2, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,326
- total depth, ft
- 2
- permits on file
- Dec 2, 1980
- last permit issued
- Sep 26, 2006
- completed
- 19.4K
- cumulative oil, bbl
- 560K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 26, 2006
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Darby, B. S. O-9-8738 | King Mountain, N. (Bend) | XTO Energy Inc. | 1 | 19.4K | 560K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 15,243 · prior 12 16,996(-10%)
Oil, barrels lease total
Last 12 months 236 · prior 12 217(+9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Kerr-McGee CorporationJan 1993 → Nov 1993
- 2Chevron U. S. A. Inc.Dec 1993 → Jul 2004
- 3XTO Energy Inc.Aug 2004 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 100625-99 | Drill | Flag-Redfern Oil Company | Dec 2, 1980 | Dec 2, 1980 | — | 10,500 |
| 64331-99 | Drill | Flag-Redfern Oil Company | Nov 20, 1979 | Nov 20, 1979 | — | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 26, 2006 | Darby B. S. O-9-8738 | King Mountain N. (Bend) | XTO Energy Inc. | Producing | 10,326 |
Formation tops
As filed on W-2/G-1. Subsea from 2,716 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,857 | 9,898 | Perforated |
| 9,857 | 10,268 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 521 | 17.5 | — |
| 11.75 | 521 | — | 450 S |
| 8.625 | 4,080 | 11 | 1,000 S |
| 8.625 | 4,080 | — | 1,000 S |
| 2.375 | 9,665 | — | — |
| 4.5 | 10,324 | 13.4 | 778 S |
| 4.5 | 10,324 | — | 1,275 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 | Mar 29, 2007 | Nov 15, 2006 | — |
| 00 | Jan 12, 1984 | Mar 4, 1981 | — |
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 42-461-31512 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-31512 → 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/46131512, documented in the API reference.