WELL · 42-367-31319 · DISTRICT 7

Gilbert-Hagler #1

Y

Parker County · Brazos East (Caddo) field · Producing  · Vertical

Gilbert-Hagler #1 (API 42-367-31319) is a well in Parker County operated by Brazos Operating LLC, completed August 27, 1979 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued November 7, 1978, permitted to 4,700 ft.

It was permitted by Arrowhead Energy CO. and has since transferred to Brazos Operating LLC on the wellbore schedule.

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

Operator of record

Brazos Operating LLC

Permitted by Arrowhead Energy Co.; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed Jun 4, 2026 · (817) 371-6410

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleBrazos Operating LLC
Production reportsBrazos Operating LLCthrough May 2023
Latest permitArrowhead Energy Co.Nov 7, 1978

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

4,700
total depth, ft
1
permits on file
Nov 7, 1978
last permit issued
Aug 27, 1979
completed
0
cumulative oil, bbl
51.2K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 27, 1979
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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Gilbert-Hagler G-8-87907Brazos, East (Caddo)Brazos Operating LLC1051.2KJan 1993 – Jul 2026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

051015202420252026

Chain of custody

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

  1. 1JJB Operating Co.Nov 1994 → Dec 1995
  2. 2MKS Consulting CorporationFeb 1996 → Jul 2005
  3. 3MKS Natural Gas CompanyAug 2005 → Mar 2011
  4. 4K & S Oil & Gas Company, LLCApr 2011 → Aug 2013
  5. 5Brazos Operating LLCDec 2022 → May 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
36356-99DrillArrowhead Energy Co.Nov 7, 1978Nov 7, 1978Jul 14, 19794,700

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-8-87907————

Perforations

Perforated and open-hole intervals.

FromToType
3,7993,819Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62521212.25175 S
2.3753,711——
4.54,7607.875300 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
00Jan 12, 1984Jun 6, 1980—

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.

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/36731319, documented in the API reference.