WELL · 42-329-42141 · DISTRICT 7
Windham TXL C4 #5307LH
Midland County · Pegasus (Consolidated) field · Producing · Horizontal
Windham Txl C4 #5307LH (API 42-329-42141) is a horizontal well in Midland County operated by Cog Operating LLC, completed October 17, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued December 11, 2017, permitted to 8,983 ft.
Completion filings report 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 317K barrels of oil and 1.02M mcf of gas since October 2018, last reporting in July 2026.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 4,568
- Phone
- (432) 683-7443
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 LLCDec 11, 2017 |
- 8,983
- total depth, ft
- 2
- permits on file
- Dec 11, 2017
- last permit issued
- Oct 17, 2018
- completed
- 317K
- cumulative oil, bbl
- 1.02M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 17, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
31.711736, -102.119833
Permit surface location from the RRC GIS record, in Midland County.
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 |
|---|---|---|---|---|---|---|
| Windham TXL C4 O-9-20157 | Pegasus (Consolidated) | COG Operating LLC | 1 | 317K | 1.02M | Oct 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 93,029 · prior 12 89,817(+4%)
Oil, barrels lease total
Last 12 months 7,634 · prior 12 13,650(-44%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCOct 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 833696-98 | Drill | COG Operating LLC | Dec 20, 2017 | Dec 11, 2017 | — | 11,000 |
| 833696-99 | Drill | COG Operating LLC | Nov 30, 2017 | Dec 11, 2017 | May 8, 2018 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 17, 2018 | Windham TXL C4 O-9-20157 | Pegasus (Consolidated) | COG Operating LLC | Producing | 8,983 |
Formation tops
As filed on W-2/G-1. Subsea from 2,824 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 950 | 1,874 |
| Yates | 1,250 | 1,574 |
| Seven Rivers | 2,022 | 802 |
| Queen | 3,972 | -1,148 |
| Grayburg | 4,350 | -1,526 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,617 | -1,793 |
| Glorieta | 5,103 | -2,279 |
| Clear ForkCLEARFORK | 6,927 | -4,103 |
| Spraberry | 7,770 | -4,946 |
| SpraberrySPRABERRY UPPER-DEAN | 9,759 | -6,935 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,154 | 16,896 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 500 | 17.5 | 615 S |
| 9.625 | 8,220 | 12.25 | 800 S |
| 5.5 | 17,025 | 8.5 | 1,590 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 14, 2019 | Jan 24, 2019 | 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 42-329-42141 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-42141 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbors, subsea-aligned so they line up regardless of surface terrain.
Windham TXL C542-329-42140
0.0 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 903 | 1,921 |
| Yates | 2,737 | 87 |
| Seven Rivers | 3,001 | -177 |
| Queen | 3,982 | -1,158 |
| Grayburg | 4,350 | -1,526 |
| San Andres | 4,597 | -1,773 |
| Glorieta | 5,218 | -2,394 |
| Clear Fork | 6,933 | -4,109 |
10 TOPS · FIRST 8
Windham TXL C742-329-42142
0.0 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 940 | 1,884 |
| Yates | 1,662 | 1,162 |
| Seven Rivers | 2,022 | 802 |
| Queen | 3,985 | -1,161 |
| Grayburg | 4,350 | -1,526 |
| San Andres | 4,600 | -1,776 |
| Glorieta | 5,223 | -2,399 |
| Clear Fork | 6,935 | -4,111 |
10 TOPS · FIRST 8
Windham TXL C342-329-42143
0.2 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 910 | 1,907 |
| Yates | 2,736 | 81 |
| Seven Rivers | 3,001 | -184 |
| Queen | 3,975 | -1,158 |
| Grayburg | 4,350 | -1,533 |
| San Andres | 4,597 | -1,780 |
| Glorieta | 5,216 | -2,399 |
| Clear Fork | 6,927 | -4,110 |
10 TOPS · FIRST 8
Windham TXL C142-329-42146
0.2 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 903 | 1,914 |
| Yates | 1,662 | 1,155 |
| Seven Rivers | 2,022 | 795 |
| Queen | 3,975 | -1,158 |
| Grayburg | 4,350 | -1,533 |
| San Andres | 4,597 | -1,780 |
| Glorieta | 5,217 | -2,400 |
| Clear Fork | 6,927 | -4,110 |
10 TOPS · FIRST 8
Windham TXL C642-329-42147
0.2 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 910 | 1,907 |
| Yates | 1,325 | 1,492 |
| Seven Rivers | 2,022 | 795 |
| Queen | 3,972 | -1,155 |
| Grayburg | 4,350 | -1,533 |
| San Andres | 4,594 | -1,777 |
| Glorieta | 5,208 | -2,391 |
| Clear Fork | 6,927 | -4,110 |
10 TOPS · FIRST 8
Windham TXL C1242-329-42136
0.3 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 907 | 1,924 |
| Seven Rivers | 2,022 | 809 |
| Yates | 2,737 | 94 |
| Queen | 3,980 | -1,149 |
| Grayburg | 4,350 | -1,519 |
| San Andres | 4,617 | -1,786 |
| Glorieta | 5,272 | -2,441 |
| Clear Fork | 6,933 | -4,102 |
10 TOPS · FIRST 8
Windham TXL C1042-329-42131
0.3 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 903 | 1,928 |
| Yates | 1,662 | 1,169 |
| Seven Rivers | 2,022 | 809 |
| Queen | 3,980 | -1,149 |
| Grayburg | 4,382 | -1,551 |
| San Andres | 4,617 | -1,786 |
| Glorieta | 5,272 | -2,441 |
| Clear Fork | 6,932 | -4,101 |
10 TOPS · FIRST 8
Windham TXL C1142-329-42135
0.3 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 910 | 1,921 |
| Yates | 1,708 | 1,123 |
| Seven Rivers | 2,022 | 809 |
| Queen | 3,980 | -1,149 |
| Grayburg | 4,350 | -1,519 |
| San Andres | 4,617 | -1,786 |
| Glorieta | 5,273 | -2,442 |
| Clear Fork | 6,932 | -4,101 |
10 TOPS · FIRST 8
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
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