WELL · 42-237-40491 · DISTRICT 9
McMillan A #1
Jack County · Bowie SW. (Marble Falls) field · NO Production · Vertical
Mcmillan A #1 (API 42-237-40491) is a well in Jack County operated by Delfin Operating LLC, completed April 25, 2018 and listed as no production on the RRC schedule.
The RRC has issued one drilling permit, issued November 29, 2017, permitted to 7,000 ft.
Completion filings report 10 formation tops, including Gunsight, Palo Pinto, Weir, Butram.
Its lease has reported 991 barrels of oil and 18.7K mcf of gas since April 2018, last reporting in July 2026.
Operator of record
Dallas, TX · P-5 Y, filed Mar 4, 2026 · 7 permits on file · (214) 926-4266
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Delfin Operating LLC |
| Production reports | Delfin Operating, LLCthrough Nov 2023 |
| Latest permit | Delfin Operating, LLCNov 29, 2017 |
- 7,000
- total depth, ft
- 1
- permits on file
- Nov 29, 2017
- last permit issued
- Apr 25, 2018
- completed
- 991
- cumulative oil, bbl
- 18.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 25, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
33.398138, -98.021028
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Jack 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 |
|---|---|---|---|---|---|---|
| McMillan A O-13-33910 | Bowie, SW. (Marble Falls) | Delfin Operating, LLC | 1 | 991 | 18.7K | Apr 2018 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Delfin Operating, LLCSep 2018 → Nov 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 833565-99 | Drill | Delfin Operating, LLC | Nov 27, 2017 | Nov 29, 2017 | Dec 29, 2017 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-33910 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,142 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,950 | 5,970 | Perforated |
| 6,056 | 6,115 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 444 | 12.25 | 230 S |
| 5.5 | 6,906 | 7.875 | 350 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 29, 2019 | Sep 4, 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 42-237-40491 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-237-40491 → 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 neighbours, subsea-aligned so they line up regardless of surface terrain.
L.E. Catlin42-237-40481
1.0 KM · Delfin Operating, LLC · Section with this well →
| Gunsight | 1,780 | -638 |
| Palo Pinto | 2,770 | -1,628 |
| Butram | 3,438 | -2,296 |
| Strawn | 4,194 | -3,052 |
| Bryson | 4,427 | -3,285 |
| Caddo | 5,520 | -4,378 |
| Atoka | 5,770 | -4,628 |
| Canyon | — |
10 TOPS · FIRST 8
Craft42-237-40486
4.7 KM · G & F Oil, Inc. · Section with this well →
| Gunsight | 910 | 188 |
| Bryson | 3,650 | -2,552 |
| Caddo | 5,404 | -4,306 |
| Canyon | — | |
| Atoka | — | |
| Butram | — | |
| Palo Pinto | — | |
| Strawn | — |
10 TOPS · FIRST 8
Reed Henderson42-237-40574
4.9 KM · HW Operating, LLC · Section with this well →
| Palo Pinto | 2,039 | -865 |
| Bryson | 3,958 | -2,784 |
| Caddo | 5,724 | -4,550 |
| Canyon | — | |
| Gunsight | — | |
| Strawn | — | |
| Village Bend | — | |
| Weir | — |
10 TOPS · FIRST 8
Rydell Lease42-237-40633
5.0 KM · G & F Oil, Inc. · Section with this well →
| Bryson | 3,752 | -2,570 |
| Caddo | 5,720 | -4,538 |
| Weir | — | |
| Atoka | — | |
| Bend | — | |
| Butram | — | |
| Canyon | — | |
| Palo Pinto | — |
10 TOPS · FIRST 8
Morton42-237-39943
5.0 KM · Choice Exploration, Inc. · Section with this well →
| Strawn | 3,752 | -2,655 |
| Caddo | 5,592 | -4,495 |
| Butram | — | |
| Bryson | — | |
| Atoka | — | |
| Weir | — | |
| Village Bend | — | |
| Palo Pinto | — |
10 TOPS · FIRST 8
Craft42-237-40517
5.1 KM · G & F Oil, Inc. · Section with this well →
| Gunsight | 870 | 259 |
| Bryson | 3,576 | -2,447 |
| Caddo | 5,404 | -4,275 |
| Canyon | — | |
| Weir | — | |
| Butram | — | |
| Atoka | — | |
| Strawn | — |
10 TOPS · FIRST 8
Extech Flint42-237-40656
5.4 KM · Extech Operating, LLC · Section with this well →
| Gunsight | 1,260 | -52 |
| Palo Pinto | 2,050 | -842 |
| Weir | 2,500 | -1,292 |
| Butram | 2,750 | -1,542 |
| Canyon | 3,130 | -1,922 |
| Strawn | 3,750 | -2,542 |
| Bryson | 3,990 | -2,782 |
| Caddo | 5,760 | -4,552 |
10 TOPS · FIRST 8
Butts42-237-40510
6.3 KM · Delfin Operating, LLC · Section with this well →
| Gunsight | 1,890 | -800 |
| Palo Pinto | 2,610 | -1,520 |
| Weir | 3,120 | -2,030 |
| Butram | 3,370 | -2,280 |
| Bryson | 3,804 | -2,714 |
| Canyon | 4,740 | -3,650 |
| Village Bend | 4,904 | -3,814 |
| Strawn | 5,030 | -3,940 |
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
Developers: this page as JSON is GET /v1/data/wells/23740491, documented in the API reference.