WELL · 42-165-37643 · DISTRICT 8

Foster 1 #4

Y

Gaines County · Spraberry (Trend Area) field · Producing  · Vertical

Foster 1 #4 (API 42-165-37643) is a well in Gaines County operated by Basin Oil & Gas Operating LLC, completed April 21, 2026 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued August 9, 2012, permitted to 11,702 ft.

It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Basin Oil & Gas Operating LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Spraberry, Dean, Wolfcamp, Strawn.

Its lease has reported 145K barrels of oil and 45.9K mcf of gas since August 2011, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.

Operator of record

Basin Oil & Gas Operating LLC

Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.

Based in
Fort Worth, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 21, 2026
Permits on file
150
Phone
(817) 820-8910

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleBasin Oil & Gas Operating LLC
Production reportsBasin Oil & Gas Operating, LLCthrough Apr 2026
Latest permitPioneer Natural Res. USA, Inc.Aug 9, 2012

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

11,702
total depth, ft
1
permits on file
Aug 9, 2012
last permit issued
Apr 21, 2026
completed
145K
cumulative oil, bbl
45.9K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 21, 2026
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Foster "1" O-10-41916Spraberry (Trend Area)Basin Oil & Gas Operating, LLC5145K45.9KAug 2011 – Jul 2026

Oil, barrels lease total

Last 12 months 1,723 · prior 12 2,713(-36%)

0200400600202420252026

Chain of custody

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

  1. 1Pioneer Natural Res. USA, Inc.Aug 2011 → Jan 2014
  2. 2Three Rivers Operating Co II LLCFeb 2014 → Nov 2014
  3. 3OXY USA Inc.Dec 2014 → Dec 2015
  4. 4Thompson, J. CleoJan 2016 → Mar 2020
  5. 5EOG Resources, Inc.Apr 2020 → Feb 2022
  6. 6Basin Oil & Gas Operating, LLCMar 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
745618-99DrillPioneer Natural Res. USA, Inc.Jul 31, 2012Aug 9, 2012Sep 20, 201212,100

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 21, 2026Foster 1 O-10-41916Spraberry (Trend Area)Basin Oil & Gas Operating LLCProducing11,702

Formation tops

As filed on W-2/G-1. Subsea from 3,207 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryTOP UPPER SPRABERRY8,390-5,183
SpraberryUPPER SPRAYBERRY8,390-5,183
SpraberryLOWER SPRAYBERRY8,810-5,603
SpraberryTOP LOWER SPRABERRY8,810-5,603
Dean9,599-6,392
Wolfcamp9,858-6,651
Strawn11,116-7,909

Perforations

Perforated and open-hole intervals.

FromToType
8,4069,467Perforated
8,40611,308Perforated
9,6099,850Perforated
9,99911,083Perforated
11,13511,308Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62546411210 S
5.511,7007.8751,250 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 16, 2026May 20, 2026—
00Jan 14, 2014Mar 12, 2013Yes

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) and the University Lands library. 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/16537643, documented in the API reference.