TEXAS · WELLS · DUVAL COUNTY · DUVAL RANCH SEC. 57 LEASE · API 42-131-33161 · DISTRICT 04

Duval Ranch Sec. 57 #4D

Plugged

Duval County · Govt. Wells South field  · Vertical

Duval Ranch Sec. 57 #4D (API 42-131-33161) is a plugged well in Duval County, plugged December 30, 2010, last operated by Killam Oil CO. Ltd..

The RRC has issued 2 drilling permits between 1979 and 1980, permitted to 2,600 ft.

It was permitted by Mobil Oil Corporation and has since transferred to Killam Oil CO. Ltd. on the wellbore schedule.

Operator of record

Killam Oil Co. Ltd.

Permitted by Mobil Oil Corporation; the EWA schedule now lists a different operator.

Based in
Laredo, TX
P-5 status
Active (A)
P-5 last filed
Apr 9, 2026
Permits on file
837
Phone
(956) 724-7141

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleKillam Oil Co. Ltd.
Production reportsnone
Latest permitMobil Oil CorporationJan 9, 1980

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

2,600
total depth, ft
2
permits on file
Jan 9, 1980
last permit issued
Jan 10, 1980
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH —

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jan 10, 1980
Shut in
—
Plugged
Dec 30, 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; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Duval Ranch Sec. 57 O-4-9384Govt. Wells, SouthKillam Oil Co., Ltd.200Jan 1993 – —

No volumes reported on these leases in the last three years.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
69139-99RecompletionMobil Oil CorporationJan 9, 1980Jan 9, 1980—1,600
43987-99DrillMobil Oil CorporationMar 9, 1979Mar 9, 1979Jun 21, 19792,600

Completions

CompletedLeaseFieldOperatorStatusDepth
Jan 10, 1980Duval Ranch Sec. 57 O-4-9384Govt. Wells SouthKillam Oil Co. Ltd.Plugged—
Jun 27, 1979Duval Ranch Sec. 57 O-4-9384Govt. Wells SouthKillam Oil Co. Ltd.Plugged—

Perforations

Perforated and open-hole intervals.

FromToType
1,5321,696Perforated
2,1922,210Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62546412.25315 S
2.3752,123——
5.52,6077.875645 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
00Jan 12, 1984Mar 7, 1980—
00Jan 12, 1984Aug 20, 1979—

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
4.41M
bbl, all reported
Nov 2010
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000003948W-14 DisposalPlugged Jan 24, 20118007001,532–1,696

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 0

0120092010

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/13133161, documented in the API reference.