WELL · 42-163-33810 · DISTRICT 1

Johnston Ranch #10H

Y

Frio County · Pearsall (Austin Chalk) field · Injection  · Horizontal

Johnston Ranch #10H (API 42-163-33810) is a horizontal well in Frio County operated by Flint Oak Energy LLC, completed October 18, 2024 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued March 10, 2014, permitted to 6,272 ft.

It was permitted by Texas American Resources Company and has since transferred to Flint Oak Energy LLC on the wellbore schedule.

Completion filings report 11 formation tops, including Carrizo, Olmos, Anacacho, Austin Chalk.

Its lease has reported 600K barrels of oil and 33.7K mcf of gas since November 2013, last reporting in July 2026. The lease carries 12 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 187K barrels injected in the 12 months reported through February 2026.

Operator of record

Flint Oak Energy LLC

Permitted by Texas American Resources Company; the EWA schedule now lists a different operator.

Montgomery, TX · P-5 Y, filed Jan 4, 2026 · 14 permits on file · (832) 262-9521

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFlint Oak Energy LLC
Production reportsFlint Oak Energy, LLCthrough Apr 2026
Latest permitTexas American Resources CompanyMar 10, 2014

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

6,272
total depth, ft
2
permits on file
Mar 10, 2014
last permit issued
Oct 18, 2024
completed
600K
cumulative oil, bbl
33.7K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2013 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 18, 2024
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 12 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Johnston Ranch O-1-17738Pearsall (Austin Chalk)Flint Oak Energy, LLC12600K33.7KNov 2013 – Jul 2026

Oil, barrels lease total

Last 12 months 11,562 · prior 12 16,208(-29%)

01K2K202420252026

Chain of custody

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

  1. 1Texas American Resources CompanyNov 2013 → Jan 2018
  2. 2Trinity Operating (Usg), LLCFeb 2018 → Sep 2023
  3. 3Flint Oak Energy, LLCOct 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
779797-98DrillTexas American Resources CompanyMar 11, 2014Mar 10, 2014Apr 23, 20146,272
779797-99DrillTexas American Resources CompanyFeb 13, 2014Mar 10, 2014Apr 23, 20146,272

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-17738————

Formation tops

As filed on W-2/G-1. Subsea from 482 ft elevation.Download CSV →

FormationMD ftSubsea
Carrizo1,110-628
Olmos3,990-3,508
Anacacho5,027-4,545
Austin ChalkAUSTIN CHALK - H2S5,363-4,881
BudaBUDA - H2S——
Eagle FordEAGLE FORD - H2S——
Escondido——
GeorgetownGEORGETOWN - H2S——
Navarro——
Pearsall——
Queen City——

Perforations

Perforated and open-hole intervals.

FromToType
4,0524,202Perforated
5,38010,165Open hole
5,38010,172Open hole
5,38010,779Open hole
5,38010,935Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.7581814.75508 S
75,4148.75599 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
00May 12, 2025Jan 15, 2025—
00Jun 12, 2015Nov 6, 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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

187K
bbl, last 12 reported months
216K
bbl, all reported
Feb 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000126695W-14 DisposalActive15,0002,0214,043–4,210

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

Last 12 months 187,081 · prior 12 29,362(+537%)

010K20K20252026

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/16333810, documented in the API reference.