TEXAS · WELLS · DENTON COUNTY · LANGLEY "A" UNIT LEASE · API 42-121-32109 · DISTRICT 7C
Langley a Unit #4
Denton County · Newark East (Barnett Shale) field · Producing · Vertical
Langley A Unit #4 (API 42-121-32109) is a well in Denton County operated by Lime Rock Resources IV-A L.P., completed January 19, 2004 and listed as producing on the RRC schedule, shut in August 1, 2026.
The RRC has issued one drilling permit, issued September 24, 2003, permitted to 8,710 ft.
It was permitted by Burlington Resources O & G CO LP and has since transferred to Lime Rock Resources IV-A L.P. on the wellbore schedule.
Completion filings report 3 formation tops, including Caddo, Barnett, Viola.
Its lease has reported 14.3K barrels of oil and 549K mcf of gas since January 2004, last reporting volume in April 2026.
Operator of record
Permitted by Burlington Resources O & G Co LP; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 18, 2025
- Permits on file
- 117
- Phone
- (713) 292-9510
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Lime Rock Resources IV-a L.P. |
| Production reports | Lime Rock Resources IV-a, L.P.through Apr 2026 |
| Latest permit | Burlington Resources O & G Co LPSep 24, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,710
- total depth, ft
- 1
- permits on file
- Sep 24, 2003
- last permit issued
- Jan 19, 2004
- completed
- 14.3K
- cumulative oil, bbl
- 549K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2004 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 19, 2004
- Shut in
- Aug 1, 2026
- 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 |
|---|---|---|---|---|---|---|
| Langley "a" Unit G-13-200625 | Newark, East (Barnett Shale) | Lime Rock Resources IV-a, L.P. | 1 | 14.3K | 549K | Jan 2004 – Apr 2026 |
Gas, mcf lease total
Last 12 months 6,890 · prior 12 7,469(-8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Burlington Resources O & G Co LPJan 2004 → Oct 2018
- 2Lime Rock Resources IV-a, L.P.Nov 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 536744-99 | Drill | Burlington Resources O & G Co LP | Sep 24, 2003 | Sep 24, 2003 | Nov 11, 2003 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 19, 2004 | Langley a Unit G-13-200625 | Newark East (Barnett Shale) | Lime Rock Resources IV-a L.P. | Producing · shut in Aug 1, 2026 | 8,710 |
Formation tops
As filed on W-2/G-1. Subsea from 829 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,760 | 8,592 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,072 | 12.25 | 565 S |
| 5.5 | 8,709 | 7.875 | 395 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 12, 2004 | Mar 8, 2004 | Yes |
| 00 | Apr 29, 2004 | — | — |
Well logs
The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.
Open the RRC's log search for this well ↗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 42-121-32109 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-121-32109 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/12132109, documented in the API reference.