WELL · 42-427-33357 · DISTRICT 4
McGill Bros. #561
Starr County · Kelsey (Frio Consol.) field · Vertical
Mcgill Bros. #561 (API 42-427-33357) is a plugged well in Starr County, plugged October 27, 2010, last operated by Overton Park Oil & Gas LP.
The RRC has issued one drilling permit, issued May 16, 2001, permitted to 8,000 ft.
It was permitted by Exxon Mobil Corporation and has since transferred to Overton Park Oil & Gas LP on the wellbore schedule.
Completion filings report 3 formation tops, including M1, 17a, 21r.
Its 2 leases have reported 100K barrels of oil and 792K mcf of gas since January 2000, last reporting in July 2026. The leases carry 47 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Exxon Mobil Corporation; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Mar 4, 2026 · 27 permits on file · (817) 409-6000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Overton Park Oil & Gas LP |
| Production reports | Overton Park Oil & Gas LPthrough Apr 2026 |
| Latest permit | Exxon Mobil CorporationMay 16, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 1
- permits on file
- May 16, 2001
- last permit issued
- Oct 18, 2002
- completed
- 100K
- cumulative oil, bbl
- 792K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2000 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 18, 2002
- Shut in
- —
- Plugged
- Oct 27, 2010
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 47 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McGill Bros. O-4-12930 | Kelsey (Frio Consol.) | Overton Park Oil & Gas LP | 46 | 100K | 564K | Jan 2000 – Jul 2026 |
| McGill Bros. G-4-191478 | Kelsey (Frio Consol.) | Exxon Mobil Corporation | 1 | 0 | 228K | Aug 2002 – Oct 2010 |
Gas, mcf lease total
Last 12 months 11,862 · prior 12 21,630(-45%)
Oil, barrels lease total
Last 12 months 5,764 · prior 12 12(+47933%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Mobil CorporationJan 2000 → Dec 2007
- 2Overton Park Oil & Gas LPNov 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 508214-99 | Drill | Exxon Mobil Corporation | Apr 25, 2001 | May 16, 2001 | Oct 14, 2001 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-191478 | — | — | — | — |
| — | — O-4-12930 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 248 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| M1 | 4,762 | -4,514 |
| 17A | 5,306 | -5,058 |
| 21R | 6,280 | -6,032 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,308 | 5,314 | Perforated |
| 5,320 | 5,325 | Perforated |
| 5,904 | 5,912 | Perforated |
| 5,960 | 5,966 | Perforated |
| 6,129 | 6,139 | Perforated |
| 6,176 | 6,182 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,547 | 12.25 | 500 S |
| 2.875 | 7,100 | 8.5 | 1,285 S |
| 2.875 | 7,100 | — | — |
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 5, 2010 | Jan 22, 2010 | — |
| 00 | Feb 4, 2010 | Dec 2, 2009 | — |
| 00 | May 5, 2005 | Feb 2, 2005 | — |
| 00 | Apr 18, 2003 | Jan 24, 2003 | — |
| 00 | Feb 5, 2003 | — | — |
| 00 | Dec 30, 2002 | Oct 23, 2002 | Yes |
| 00 | Nov 26, 2002 | — | — |
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 42-427-33357 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-33357 → 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.
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/42733357, documented in the API reference.