WELL · 42-003-34028 · DISTRICT 8
McMillian #1
Andrews County · Deep Rock (Penn.) field · Vertical
Mcmillian #1 (API 42-003-34028) is a well in Andrews County operated by Legacy Reserves Operating LP, completed June 29, 1984.
The RRC has issued 2 drilling permits between 1984 and 2021, permitted to 9,600 ft.
Completion filings report 6 formation tops, including Yates, San Andres, Glorieta, Wolfcamp.
Its 2 leases have reported 47.7K barrels of oil and 36.2K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Denver, CO · P-5 Y, filed Oct 4, 2025 · 439 permits on file · (720) 498-3026
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Legacy Reserves Operating LP |
| Production reports | Legacy Reserves Operating LPthrough Nov 2021 |
| Latest permit | Legacy Reserves Operating LPJul 23, 2021 |
- 9,600
- total depth, ft
- 2
- permits on file
- Jul 23, 2021
- last permit issued
- Jun 29, 1984
- completed
- 47.7K
- cumulative oil, bbl
- 36.2K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 29, 1984
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McMillian O-10-56138 | Deep Rock (Wolfcamp) | Highmark Energy Operating, LLC | 1 | 493 | 0 | Jun 2021 – Jul 2026 |
| McMillian O-10-29063 | Deep Rock (Penn.) | Legacy Reserves Operating LP | 1 | 47.2K | 36.2K | Jan 1993 – Dec 2021 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Maralo, Inc.Jan 1993 → Dec 1998
- 2Maralo, LLCJan 1999 → Nov 2004
- 3COG Operating LLCDec 2004 → Dec 2012
- 4Legacy Reserves Operating LPJan 2013 → Nov 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 871432-99 | Recompletion | Legacy Reserves Operating LP | Jul 21, 2021 | Jul 23, 2021 | — | 9,550 |
| 230318-99 | Drill | Maralo, Inc. | Feb 22, 1984 | Feb 23, 1984 | May 16, 1984 | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-29063 | — | — | — | — |
| — | — O-10-56138 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,196 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,975 | 221 |
| San Andres | 4,442 | -1,246 |
| Glorieta | 5,917 | -2,721 |
| Wolfcamp | 8,077 | -4,881 |
| WolfcampWOLFCAMP PAY | 8,605 | -5,409 |
| Permian (undifferentiated)BASE PERMIAN | 8,753 | -5,557 |
| PennsylvanianPENN | 8,905 | -5,709 |
| PennsylvanianPENN LS | 8,905 | -5,709 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,240 | 8,690 | Perforated |
| 9,062 | 9,085 | Perforated |
| 9,062 | 9,185 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 370 | 17.25 | 400 sx |
| 8.625 | 6,000 | 10.625 | 1,800 sx |
| 6.5 | 9,550 | 7.875 | 800 sx |
| 5.5 | 9,550 | 7.875 | 800 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 | Sep 27, 2021 | Sep 7, 2021 | — |
| 00 | Jul 25, 1984 | Jul 11, 1984 | — |
| 00 | Jul 24, 1984 | Jul 11, 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 42-003-34028 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-34028 → 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/00334028, documented in the API reference.