TEXAS · WELLS · STARR COUNTY · API 42-427-00240 · DISTRICT 04

McGill Bros. #277

Plugged

Starr County · Kelsey (Frio Consol.) field  · Vertical

Mcgill Bros. #277 (API 42-427-00240) is a plugged well in Starr County, plugged May 30, 2006, last operated by Hilcorp Energy Company.

The RRC has issued one drilling permit, issued August 7, 1997, permitted to 5,690 ft.

It was permitted by Exxon Corp. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Its 3 leases have reported 100K barrels of oil and 564K mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 48 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Permitted by Exxon Corp.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Mar 27, 2026
Permits on file
3,458
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsOverton Park Oil & Gas LPthrough Apr 2026
Latest permitExxon Corp.Aug 7, 1997

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

5,690
total depth, ft
1
permits on file
Aug 7, 1997
last permit issued
Mar 29, 1999
completed
100K
cumulative oil, bbl
564K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2000 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Mar 29, 1999
Shut in
—
Plugged
May 30, 2006

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 48 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
McGill Bros. O-4-12930Kelsey (Frio Consol.)Overton Park Oil & Gas LP46100K564KJan 2000 – Apr 2026
McGill Bros. G-4-54971Kelsey, South (Zone 19-H, N)Exxon Corp.100Jan 1993 – —
McGill Bros. O-4-12821Kelsey, South (Zone 18-D, C)Exxon Mobil Corporation100Mar 1999 – —

Gas, mcf lease total

Last 12 months 11,862 · prior 12 21,630(-45%)

010K20K202420252026

Oil, barrels lease total

Last 12 months 5,764 · prior 12 12

05001K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Exxon Mobil CorporationJan 2000 → Dec 2007
  2. 2Overton Park Oil & Gas LPNov 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
465989-99RecompletionExxon Corp.Aug 7, 1997Aug 7, 1997Mar 17, 19985,690

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 29, 1999McGill Bros. O-4-12821Kelsey South (Zone 18-D C)Exxon Mobil CorporationPlugged—
Mar 29, 1999McGill Bros. O-4-12930Kelsey (Frio Consol.)Hilcorp Energy CompanyPlugged—
Mar 18, 1973McGill Bros. G-4-54971Kelsey South (Zone 19-H N)Exxon Corp.Plugged—
—— O-4-7462Kelsey South (Zone 20-J)Exxon Corp.Plugged—
—McGill Bros. O-4-5140Kelsey Deep (Zone 22-A)Exxon Mobil CorporationPlugged—

Perforations

Perforated and open-hole intervals.

FromToType
5,5945,605Perforated
—5,937Perforated
—6,244Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
71,499——
71,509——
2.8756,3806.75315 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jun 2, 2000Apr 14, 1999Yes
00Jul 14, 1999Apr 14, 1999Yes
00May 4, 1999——
00Jan 12, 1984Apr 19, 1973—
00Jan 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.

Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

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/42700240, documented in the API reference.