WELL · 42-329-40876 · DISTRICT 7
Windham A #104LH
Midland County · Pegasus (Consolidated) field · Producing · Horizontal
Windham A #104LH (API 42-329-40876) is a horizontal well in Midland County operated by Cog Operating LLC, completed September 17, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 24, 2016, permitted to 12,000 ft.
Completion filings report 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Grayburg.
Its lease has reported 3.62M barrels of oil and 23.7M mcf of gas since April 2011, last reporting in July 2026. The lease carries 10 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed May 4, 2026 · 4,568 permits on file · (432) 853-2355
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | COG Operating LLCthrough Apr 2026 |
| Latest permit | COG Operating LLCMar 24, 2016 |
- 12,000
- total depth, ft
- 1
- permits on file
- Mar 24, 2016
- last permit issued
- Sep 17, 2016
- completed
- 3.62M
- cumulative oil, bbl
- 23.7M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 17, 2016
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 10 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Windham "A" O-9-17547 | Pegasus (Consolidated) | COG Operating LLC | 10 | 3.62M | 23.7M | Apr 2011 – Jul 2026 |
Gas, mcf lease total
Last 12 months 782,086 · prior 12 1,411,112(-45%)
Oil, barrels lease total
Last 12 months 28,333 · prior 12 33,292(-15%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCApr 2011 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 814554-99 | Drill | COG Operating LLC | Mar 23, 2016 | Mar 24, 2016 | May 18, 2016 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-17547 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,837 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 920 | 1,917 |
| Yates | 2,746 | 91 |
| Seven Rivers | 3,138 | -301 |
| Grayburg | 3,985 | -1,148 |
| Queen | 4,045 | -1,208 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,703 | -1,866 |
| Glorieta | 5,396 | -2,559 |
| Clear ForkCLEARFORK | 6,942 | -4,105 |
| Spraberry | 7,772 | -4,935 |
| SpraberrySPRABERRY UPPER-DEAN | 8,276 | -5,439 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,035 | 18,825 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 478 | 17.5 | 600 S |
| 9.625 | 8,248 | 12.25 | 670 S |
| 9.5 | 8,248 | 12.25 | 720 S |
| 5.5 | 18,955 | 8.5 | 3,025 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 | Dec 28, 2016 | Dec 7, 2016 | Yes |
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 42-329-40876 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-40876 → 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/32940876, documented in the API reference.