WELL · 42-485-43140 · DISTRICT 9

Preston #1 #21L

Y

Wichita County · Wichita County Regular field · Injection  · Vertical

Preston #1 #21L (API 42-485-43140) is a well in Wichita County operated by Alfaro Oil & Gas, completed August 12, 1995 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued August 10, 1995, permitted to 1,500 ft.

It was permitted by Landrum West, Inc. and has since transferred to Alfaro Oil & Gas on the wellbore schedule.

Completion filings report one formation top, including Cisco.

Its lease has reported 91.7K barrels of oil and 21 mcf of gas since January 1993, last reporting in July 2026. The lease carries 24 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 815 barrels injected in the 12 months reported through May 2026.

Operator of record

Alfaro Oil & Gas

Permitted by Landrum West, Inc.; the EWA schedule now lists a different operator.

Burkburnett, TX · P-5 Y, filed Sep 4, 2025 · (940) 636-1806

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleAlfaro Oil & Gas
Production reportsAlfaro Oil & Gasthrough Apr 2026
Latest permitLandrum West, Inc.Aug 10, 1995

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

1,500
total depth, ft
1
permits on file
Aug 10, 1995
last permit issued
Aug 12, 1995
completed
91.7K
cumulative oil, bbl
21
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 12, 1995
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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 24 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Preston #1 O-13-27927Wichita County RegularAlfaro Oil & Gas2491.7K21Jan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 1,818 · prior 12 2,410(-25%)

0200400202420252026

Chain of custody

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

  1. 1Landrum West, Inc.Jan 1993 → Nov 1997
  2. 2Henderson, Sam W.Dec 1997 → Jan 1998
  3. 3Alfaro Oil & GasFeb 1998 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
438671-99DrillLandrum West, Inc.Aug 9, 1995Aug 10, 1995Aug 11, 19951,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-13-27927————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
CiscoCISCO WATER SAND264
CiscoCISCO OIL SAND550

Perforations

Perforated and open-hole intervals.

FromToType
550560Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
4.56406.75100 S
4.56436.75100 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
00Jul 6, 2017Jan 19, 2017—
00Nov 1, 1995Sep 5, 1995Yes
00Sep 26, 1995——

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

815
bbl, last 12 reported months
5.44K
bbl, all reported
May 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000114325H-1 InjectionActive300225550–560

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

Last 12 months 815 · prior 12 734(+11%)

05010020252026

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/48543140, documented in the API reference.