WELL · 42-029-38317 · DISTRICT 1

Brown #1

Y

Bexar County · Fairfield field · Producing  · Vertical

Brown #1 (API 42-029-38317) is a well in Bexar County operated by JM Calk Operating LLC, completed July 31, 2014 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued May 12, 2014, permitted to 1,500 ft.

It was permitted by Premier Minerals, Inc. and has since transferred to JM Calk Operating LLC on the wellbore schedule.

Completion filings report 7 formation tops, including Escondido, Olmos, Anacacho, Austin Chalk.

Its lease has reported 11.6K barrels of oil since August 2014, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.

Operator of record

JM Calk Operating LLC

Permitted by Premier Minerals, Inc.; the EWA schedule now lists a different operator.

Lytle, TX · P-5 Y, filed Nov 4, 2025 · 7 permits on file · (210) 617-8101

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleJM Calk Operating LLC
Production reportsJM Calk Operating, LLCthrough Apr 2026
Latest permitPremier Minerals, Inc.May 12, 2014

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
May 12, 2014
last permit issued
Jul 31, 2014
completed
11.6K
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 31, 2014
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 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Brown O-1-17934FairfieldJM Calk Operating, LLC511.6K0Aug 2014 – Jul 2026

Oil, barrels lease total

Last 12 months 552 · prior 12 581(-5%)

050100202420252026

Chain of custody

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

  1. 1Premier Minerals, Inc.Aug 2014 → Apr 2022
  2. 2JM Calk Operating, LLCMay 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
783342-99DrillPremier Minerals, Inc.Mar 27, 2014May 12, 2014May 23, 20141,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-17934————

Formation tops

As filed on W-2/G-1. Subsea from 779 ft elevation.Download CSV →

FormationMD ftSubsea
Escondido425354
Olmos900-121
Anacacho1,251-472
AnacachoANACACHO - H2S, DISPOSAL1,251-472
Austin ChalkAUSTIN CHALK - DISPOSAL——
BudaBUDA - DISPOSAL——
EdwardsEDWARDS - DISPOSAL——
Glen RoseGLEN ROSE - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
1,2511,292Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
4.51,3517.875200 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
00Apr 24, 2015Aug 1, 2014Yes

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/02938317, documented in the API reference.