TEXAS · WELLS · STARR COUNTY · API 42-427-31904 · DISTRICT 04

McGill Bros. #513

Plugged

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

Fields on the latest permit · any of 4: Field 48631821 · Field 48631880 · Kelsey Deep (Zone 26-A) · Kelsey, Deep (Zone 26-B); Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.

Mcgill Bros. #513 (API 42-427-31904) is a plugged well in Starr County, plugged October 28, 2009, last operated by Hilcorp Energy Company.

The RRC has issued one drilling permit, issued June 8, 1984, permitted to 7,800 ft.

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

Its 2 leases have reported 115K barrels of oil and 581K mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The leases carry 47 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 (A)
P-5 last filed: Mar 27, 2026
Permits on file: 3,459
Phone: (713) 209-2400

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SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Hilcorp Energy Company
Production reports	Hilcorp Energy Companythrough Aug 2026
Latest permit	Exxon Corp.Jun 8, 1984

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

7,800: total depth, ft
1: permits on file
Jun 8, 1984: last permit issued
Jul 18, 1984: completed
115K: cumulative oil, bbl
581K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026

On this pageLease production 2 completions

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Jul 18, 1984
Shut in: —
Plugged: Oct 28, 2009

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.

Wells nearby

Withinmiles

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 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.)	Hilcorp Energy Company	46	102K	565K	Jan 2000 – Aug 2026
McGill Bros O-4-10560	Kelsey, Deep (6430)	Exxon Mobil Corporation	1	13.4K	16.1K	by Jan 1993 – Apr 1998

Gas, mcf lease total

Last 12 months 10,622 · prior 12 8,788(+21%)

Oil, barrels lease total

Last 12 months 5,668 · prior 12 1,777(+219%)

Wells named McGill Bros.

Hilcorp Energy Company's other wells filed under this lease name in Starr County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

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Chain of custody

Operator on the lease's P-4

Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.

Operator	From	To
Hilcorp Energy Company	Jul 1, 2026	today
Overton Park Oil & Gas LP	Oct 26, 2018	Jul 1, 2026
Exxon Mobil Corporation	Jan 1, 2000	Oct 26, 2018

Reporting production

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

1Exxon Corp.Jan 1993 → Apr 1998
2Exxon Mobil CorporationJan 2000 → Dec 2007
3Overton Park Oil & Gas LPNov 2022 → Jun 2026
4Hilcorp Energy CompanyJul 2026 → Aug 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
241393-99	Drill	Exxon Corp.	Jun 7, 1984	Jun 8, 1984	Jun 26, 1984	7,800

Completions

Completed	Lease	Field	Operator	Status	Depth
Jul 18, 1984	McGill Bros O-4-10560	Kelsey Deep (6430)	Exxon Mobil Corporation	Plugged	—
Jul 18, 1984	McGill Bros. O-4-12930	Kelsey (Frio Consol.)	Hilcorp Energy Company	Plugged	—

Perforations

Perforated and open-hole intervals.

From	To	Type
6,430	6,436	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.75	1,483	12.25	550 sx
2.875	7,398	7.875	1,165 sx

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 →

RRC record date	W-2 / G-1 date	Logs referenced
Jun 2, 2000	Jul 31, 1984	—
Sep 25, 1984	Jul 31, 1984	—
Sep 5, 1984	Jul 31, 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 42-427-31904 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-427-31904 → scanned completion filings

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/42731904, documented in the API reference.