TEXAS · WELLS · LAVACA COUNTY · API 42-285-31176 · DISTRICT 02

Ziegler Lester #1

Completed

Lavaca County · Hallettsville South (Anderson) field · Vertical

Ziegler Lester #1 (API 42-285-31176) is a well in Lavaca County operated by Mobil Producing TX. & N.M. Inc., completed November 25, 1977.

The RRC has issued one drilling permit, issued August 23, 1977, permitted to 14,000 ft.

It was permitted by General Crude Oil CO. and has since transferred to Mobil Producing TX. & N.M. Inc. on the wellbore schedule.

No lease production has been reported under this well’s leases.

Operator of record

Mobil Producing TX. & N.M. Inc.

Permitted by General Crude Oil Co.; the EWA schedule now lists a different operator.

Based in: Spring, TX
P-5 status: Active (A)
P-5 last filed: Jun 4, 2025
Permits on file: 6,763
Phone: (346) 474-9142

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SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Mobil Producing TX. & N.M. Inc.
Production reports	none
Latest permit	General Crude Oil Co.Aug 23, 1977

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

14,000: total depth, ft
1: permits on file
Aug 23, 1977: last permit issued
Nov 25, 1977: completed
—: cumulative oil, bbl
—: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Nov 25, 1977
Shut in: —
Plugged: —

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 named Ziegler Lester

Mobil Producing TX. & N.M. Inc.'s other wells filed under this lease name in Lavaca 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.

Loading the lease's wells

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
4828-99	Drill	General Crude Oil Co.	Aug 23, 1977	Aug 23, 1977	Sep 3, 1977	14,000

Completions

Completed	Lease	Field	Operator	Status	Depth
Nov 25, 1977	Ziegler Lester G-2-76253	Hallettsville South (Anderson)	Mobil Producing TX. & N.M. Inc.	Not on Schedule	—

Perforations

Perforated and open-hole intervals.

From	To	Type
11,100	11,172	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	2,505	14.75	1,140 S
7.625	9,925	9.875	1,070 S
2.375	11,011	—	—

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 →

Suffix	RRC record date	W-2 / G-1 date	Logs referenced
00	Jan 12, 1984	Mar 9, 1978	—

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 42-285-31176 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-285-31176 → 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/28531176, documented in the API reference.