WELL · 42-461-03309 · DISTRICT 7
Pegasus Ellenburger Unit #1603
Upton County · Pegasus (Ellenburger) field · Vertical
Pegasus Ellenburger Unit #1603 (API 42-461-03309) is a well in Upton County operated by Mobil Producing TX. & N.M. Inc., completed March 17, 2000.
The RRC has issued one drilling permit, issued July 11, 1988, permitted to 13,061 ft.
Its 2 leases have reported 3.9M barrels of oil and 37.2M mcf of gas since January 1993, last reporting in July 2026. The leases carry 90 wells, so these are lease totals, not this well alone.
Operator of record
Mobil Producing TX. & N.M. Inc.
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 4, 2025
- Permits on file
- 6,763
- Phone
- (346) 474-9142
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mobil Producing TX. & N.M. Inc. |
| Production reports | XTO Energy Inc.through Apr 2026 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Jul 11, 1988 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,061
- total depth, ft
- 1
- permits on file
- Jul 11, 1988
- last permit issued
- Mar 17, 2000
- completed
- 3.9M
- cumulative oil, bbl
- 37.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 17, 2000
- 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 2 leases this well is completed on; they carry 90 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Pegasus Ellenburger Unit O-9-1175 | Pegasus (Ellenburger) | XTO Energy Inc. | 89 | 3.9M | 36.2M | Jan 1993 – Jul 2026 |
| Pegasus Ellenburger Unit G-9-177356 | Pegasus (Ellenburger) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 1.02M | Mar 2000 – Oct 2001 |
Oil, barrels lease total
Last 12 months 6,622 · prior 12 7,205(-8%)
Gas, mcf lease total
Last 12 months 2,180 · prior 12 2,135(+2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Dec 2011
- 2XTO Energy Inc.Jan 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 348771-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Jul 11, 1988 | Jul 11, 1988 | — | 13,061 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-177356 | — | — | — | — |
| — | — O-9-1175 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,040 | 12,111 | Perforated |
| 12,636 | 12,732 | Perforated |
| 12,765 | 12,850 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 476 | — | 400 S |
| 9.625 | 4,293 | — | 3,200 S |
| 9.625 | 4,923 | — | — |
| 7.625 | 9,235 | — | 1,060 S |
| 5.5 | 12,763 | — | — |
| 5.5 | 12,765 | — | 508 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 | Oct 10, 2001 | Sep 7, 2001 | — |
| 00 | Oct 2, 2000 | May 5, 2000 | — |
| 00 | Jun 28, 2000 | — | — |
| 00 | Nov 3, 1988 | Oct 18, 1988 | Yes |
| 00 | Sep 2, 1986 | Aug 20, 1986 | — |
| 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 42-461-03309 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-03309 → 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/46103309, documented in the API reference.