WELL · 42-461-02804 · DISTRICT 7
Pegasus Pennsylvanian Unit #5403
Upton County · Pegasus (Pennsylvanian) field · Vertical
Pegasus Pennsylvanian Unit #5403 (API 42-461-02804) is a well in Upton County operated by Cog Operating LLC, completed December 11, 1992.
The RRC has issued 3 drilling permits between 1978 and 1992, permitted to 10,727 ft.
It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Cog Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Wolfcamp, Strawn, Pennsylvanian.
Its 3 leases have reported 2.29M barrels of oil and 30.1M mcf of gas since January 1993, last reporting in July 2026. The leases carry 146 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Mobil Producing TX. & N.M. Inc.; the EWA schedule now lists a different operator.
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 | Mobil Producing TX. & N.M. Inc.Oct 15, 1992 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,727
- total depth, ft
- 3
- permits on file
- Oct 15, 1992
- last permit issued
- Dec 11, 1992
- completed
- 2.29M
- cumulative oil, bbl
- 30.1M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 11, 1992
- Shut in
- —
- Plugged
- —
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 3 leases this well is completed on; they carry 146 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Pegasus Pennsylvanian Unit O-9-17148 | Pegasus (Consolidated) | COG Operating LLC | 46 | 386K | 11.4M | May 2010 – Jul 2026 |
| Pegasus Pennsylvanian Unit O-9-1178 | Pegasus (Pennsylvanian) | COG Operating LLC | 99 | 1.9M | 18.7M | Jan 1993 – Jul 2010 |
| Holzgraf, Ora "B" O-9-10123 | Pegasus (Wolfcamp) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 0 | Jan 1993 – Mar 1993 |
Gas, mcf lease total
Last 12 months 195,448 · prior 12 272,799(-28%)
Oil, barrels lease total
Last 12 months 5,010 · prior 12 8,187(-39%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Mar 1998
- 2Henry Petroleum Corp.Apr 1998 → Mar 2001
- 3Henry Petroleum LPApr 2001 → Dec 2008
- 4COG Operating LLCJan 2009 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 404589-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Oct 12, 1992 | Oct 15, 1992 | Nov 2, 1992 | 10,710 |
| 186097-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Feb 16, 1983 | Feb 16, 1983 | — | 10,727 |
| 37690-99 | Recompletion | Mobil Oil Corporation | Nov 28, 1978 | Nov 28, 1978 | — | 10,727 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-1178 | — | — | — | — |
| — | — O-9-10123 | — | — | — | — |
| — | — O-9-17148 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,891 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wolfcamp | 9,130 | -6,239 |
| Strawn | 10,100 | -7,209 |
| Pennsylvanian | 10,334 | -7,443 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,805 | 8,386 | Perforated |
| 9,306 | 10,012 | Perforated |
| 10,632 | 10,694 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 476 | — | 400 S |
| 7.625 | 4,710 | — | 2,000 S |
| 7.625 | 4,726 | — | 2,000 S |
| 2.375 | 8,445 | — | — |
| 2.375 | 10,147 | — | — |
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 | Jun 2, 2010 | Jan 13, 1993 | Yes |
| 00 | Feb 24, 1993 | Jan 13, 1993 | Yes |
| 00 | Feb 16, 1993 | — | — |
| 00 | Jan 12, 1984 | Apr 25, 1983 | — |
| 00 | Jan 12, 1984 | Feb 19, 1979 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-461-02804 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-02804 → 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/46102804, documented in the API reference.