WELL · 42-507-33360 · DISTRICT 1

KM South Zav #B 1H

Y

Zavala County · Briscoe Ranch (Eagleford) field · Producing  · Horizontal

KM South Zav #B 1H (API 42-507-33360) is a horizontal well in Zavala County operated by Exco Operating Company LP, completed December 13, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued June 19, 2019, permitted to 7,000 ft.

Completion filings report 5 formation tops, including Escondido, Olmos, Anacacho, Austin Chalk.

Its lease has reported 985K barrels of oil and 513K mcf of gas since May 2013, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Exco Operating Company LP

Dallas, TX · P-5 Y, filed May 4, 2026 · 515 permits on file · (888) 788-3781

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleExco Operating Company LP
Production reportsExco Operating Company, LPthrough Apr 2026
Latest permitExco Operating Company, LPJun 19, 2019
7,000
total depth, ft
2
permits on file
Jun 19, 2019
last permit issued
Dec 13, 2019
completed
985K
cumulative oil, bbl
513K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2013 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 13, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.806636, -99.433529

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Zavala 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; they carry 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
KM South Zav O-1-17123Briscoe Ranch (Eagleford)Exco Operating Company, LP4985K513KMay 2013 – Jul 2026

Oil, barrels lease total

Last 12 months 37,586 · prior 12 47,135(-20%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 18,930 · prior 12 19,700(-4%)

02K4K6K202420252026

Chain of custody

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

  1. 1Exco Operating Company, LPSep 2013 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
854258-98DrillExco Operating Company, LPMay 13, 2020Jun 19, 2019Sep 8, 20197,000
854258-99DrillExco Operating Company, LPJun 17, 2019Jun 19, 2019Sep 9, 20197,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-17123————

Formation tops

As filed on W-2/G-1. Subsea from 639 ft elevation.Download CSV →

FormationMD ftSubsea
EscondidoESCONDIDO - DISPOSAL3,420-2,781
Olmos4,479-3,840
Anacacho5,572-4,933
Austin Chalk5,886-5,247
Eagle Ford6,379-5,740

Perforations

Perforated and open-hole intervals.

FromToType
6,99112,356Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6252,67312.25655 S
5.512,4508.752,435 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00May 15, 2020Jan 29, 2020Yes

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 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.

Open the cross-section →

KM South Zav42-507-33361

0.0 KM · Exco Operating Company, LP · Section with this well →

Escondido3,422-2,783
Olmos4,476-3,837
Anacacho5,556-4,917
Austin Chalk5,870-5,231
Eagle Ford6,385-5,746

KM-Commerce Unit Zav42-507-33363

0.7 KM · Exco Operating Company, LP · Section with this well →

Escondido3,431-2,780
Olmos4,487-3,836
Anacacho5,605-4,954
Austin Chalk5,925-5,274
Eagle Ford6,434-5,783

KM-Commerce Unit Zav42-507-33362

0.7 KM · Exco Operating Company, LP · Section with this well →

Escondido3,433-2,782
Olmos4,504-3,853
Anacacho5,606-4,955
Austin Chalk5,928-5,277
Eagle Ford6,435-5,784

Winterbotham Zav42-507-33351

0.8 KM · Exco Operating Company, LP · Section with this well →

Escondido3,386-2,759
Olmos4,409-3,782
Anacacho5,488-4,861
Austin Chalk5,816-5,189
Eagle Ford6,319-5,692

Commerce Unit Zav B42-507-33367

1.2 KM · Exco Operating Company, LP · Section with this well →

Escondido3,412-2,748
Olmos4,497-3,833
Anacacho5,611-4,947
Austin Chalk5,915-5,251
Eagle Ford6,440-5,776

Bauerle Unit Zav42-507-33304

1.3 KM · Exco Operating Company, LP · Section with this well →

Escondido3,463-2,828
Olmos4,499-3,864
Anacacho5,630-4,995
Austin Chalk5,946-5,311
Eagle Ford6,455-5,820

N Bauerle a Unit42-507-33327

1.3 KM · Ageron Energy, LLC · Section with this well →

Escondido3,498-2,855
Austin Chalk6,000-5,357
Eagle Ford6,474-5,831

N Bauerle a Unit42-507-33329

1.3 KM · Ageron Energy, LLC · Section with this well →

Escondido3,491-2,848
Austin Chalk5,942-5,299
Eagle Ford6,463-5,820

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/50733360, documented in the API reference.