WELL · 42-273-31921 · DISTRICT 4

King Ranch Borregos #M43E

Plugged

Kleberg County · Escondido Creek (20-I-1 SW) field · Vertical

King Ranch Borregos #M43E (API 42-273-31921) is a plugged well in Kleberg County, plugged March 17, 2010, last operated by Exxon Mobil Corporation.

The RRC has issued one drilling permit, issued September 4, 1984, permitted to 8,750 ft.

It was permitted by Exxon Corp. and has since transferred to Exxon Mobil Corporation on the wellbore schedule.

Its lease has reported 25.5K barrels of oil and 56.8K mcf of gas since January 1993, last reporting in April 2010.

Operator of record

Exxon Mobil Corporation

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

Based in: Spring, TX
P-5 status: Active (A)
P-5 last filed: Jul 15, 2026
Permits on file: 1,223
Phone: (346) 474-9142

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Exxon Mobil Corporation
Production reports	Exxon Mobil Corporationthrough Mar 2002
Latest permit	Exxon Corp.Sep 4, 1984

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

8,750: total depth, ft
1: permits on file
Sep 4, 1984: last permit issued
Nov 8, 1984: completed
25.5K: cumulative oil, bbl
56.8K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2010

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Nov 8, 1984
Shut in: —
Plugged: Mar 17, 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 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
King Ranch Borregos O-4-10522	Escondido Creek (20-I-1, SW)	Exxon Mobil Corporation	1	25.5K	56.8K	Jan 1993 – Apr 2010

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.

1Exxon Corp.Jan 1993 → Mar 2000
2Exxon Mobil CorporationApr 2000 → Mar 2002

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
250276-99	Drill	Exxon Corp.	Aug 28, 1984	Sep 4, 1984	Oct 19, 1984	8,750

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-4-10522	—	—	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
7,442	7,448	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	1,231	12.25	560 S
2.875	7,746	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	Dec 14, 1984	Nov 28, 1984	—
00	Dec 7, 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 42-273-31921 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-273-31921 → 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/27331921, documented in the API reference.