WELL · 42-501-35500 · DISTRICT 8
Langford 419 #1
Yoakum County · Block D South (Devonian) field · Producing · Vertical
Langford 419 #1 (API 42-501-35500) is a well in Yoakum County operated by Southwest Royalties Inc., completed August 27, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 14, 2008, permitted to 12,500 ft.
It was permitted by Cobra Oil & Gas Corporation and has since transferred to Southwest Royalties Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Wolfcamp, Pennsylvanian, Atoka, Mississippian.
Its lease has reported 643K barrels of oil since August 2008, last reporting in July 2026.
Operator of record
Permitted by Cobra Oil & Gas Corporation; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 6, 2026
- Permits on file
- 497
- Phone
- (432) 685-9038
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Southwest Royalties Inc. |
| Production reports | Southwest Royalties, Inc.through Apr 2026 |
| Latest permit | Cobra Oil & Gas CorporationFeb 14, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,500
- total depth, ft
- 1
- permits on file
- Feb 14, 2008
- last permit issued
- Aug 27, 2008
- completed
- 643K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 27, 2008
- 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 |
|---|---|---|---|---|---|---|
| Langford 419 O-11-69299 | Block D, South (Devonian) | Southwest Royalties, Inc. | 1 | 643K | 0 | Aug 2008 – Jul 2026 |
Oil, barrels lease total
Last 12 months 45,818 · prior 12 51,262(-11%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cobra Oil & Gas CorporationAug 2008 → May 2010
- 2Blue Ridge Resources, LLCJun 2010 → Aug 2013
- 3Desert Production, Inc.Sep 2013 → Sep 2020
- 4Southwest Royalties, Inc.Oct 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 654760-99 | Drill | Cobra Oil & Gas Corporation | Feb 6, 2008 | Feb 14, 2008 | Mar 18, 2008 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-69299 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,763 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wolfcamp | 9,033 | -5,270 |
| PennsylvanianPENN | 10,108 | -6,345 |
| Atoka | 11,039 | -7,276 |
| MississippianMISS | 11,194 | -7,431 |
| Woodford | 11,862 | -8,099 |
| Devonian | 11,932 | -8,169 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,933 | 11,940 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 433 | 17.5 | 570 S |
| 8.625 | 5,690 | 11 | 1,380 S |
| 5.5 | 12,094 | 7.875 | 960 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 | Jan 9, 2009 | Sep 15, 2008 | Yes |
| 00 | Dec 8, 2008 | — | — |
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 42-501-35500 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-35500 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/50135500, documented in the API reference.