TEXAS · WELLS · JOHNSON COUNTY · COOK HILLS LEASE · API 42-251-30869 · DISTRICT 7C

Cook Hills #1H

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Johnson County · Newark East (Barnett Shale) field · Producing  · Horizontal

Cook Hills #1H (API 42-251-30869) is a horizontal well in Johnson County operated by Riverbirch Resources LLC, completed September 27, 2006 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued March 24, 2006, permitted to 10,135 ft.

It was permitted by North Texas Llano Operating Corp and has since transferred to Riverbirch Resources LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Caddo, Atoka, Marble Falls, Barnett.

Its lease has reported 3 barrels of oil and 3.14M mcf of gas since September 2006, last reporting volume in April 2026.

Operator of record

Riverbirch Resources LLC

Permitted by North Texas Llano Operating Corp; the EWA schedule now lists a different operator.

Based in
Tulsa, OK
P-5 status
Active (A)
P-5 last filed
May 7, 2026
Phone
(918) 417-0173

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleRiverbirch Resources LLC
Production reportsRiverbirch Resources, LLCthrough Apr 2026
Latest permitNorth Texas Llano Operating CorpMar 24, 2006

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

10,135
total depth, ft
1
permits on file
Mar 24, 2006
last permit issued
Sep 27, 2006
completed
3
cumulative oil, bbl
3.14M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2006 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 27, 2006
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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cook Hills G-13-231903Newark, East (Barnett Shale)Riverbirch Resources, LLC133.14MSep 2006 – Apr 2026

Gas, mcf lease total

Last 12 months 56,200 · prior 12 43,721(+29%)

05K10K202420252026

Chain of custody

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

  1. 1North Texas Llano Operating CorpSep 2006 → Dec 2008
  2. 2Routh Operating, LLCJan 2009 → Mar 2011
  3. 3Torch Operating LLCApr 2011 → Feb 2013
  4. 4Western Production CompanyMar 2013 → May 2016
  5. 5BRG Lone Star Ltd.Jun 2016 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
616397-99DrillNorth Texas Llano Operating CorpMar 24, 2006Mar 24, 2006Apr 3, 20068,900

Completions

CompletedLeaseFieldOperatorStatusDepth
Sep 27, 2006Cook Hills G-13-231903Newark East (Barnett Shale)Riverbirch Resources LLCProducing10,135

Formation tops

As filed on W-2/G-1. Subsea from 687 ft elevation.Download CSV →

FormationMD ftSubsea
Caddo4,750-4,063
Atoka5,104-4,417
Marble Falls6,998-6,311
BarnettUPPER BARNETT7,332-6,645

Perforations

Perforated and open-hole intervals.

FromToType
8,0108,015Perforated
8,4608,465Perforated
9,3609,365Perforated
10,03510,040Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,76112.25615 S
5.510,1357.875615 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jan 9, 2008Sep 10, 2007Yes
00Dec 31, 2007——

Well logs

3 logs loaded from the RRC's log index, the latest received Oct 9, 2009. Cased hole, Density, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
SURVEYS CASED HOLESpans Atoka, Marble Falls, BarnettTIFF5,700 to 7,994Oct 9, 2009run May 23, 20067.56
COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Caddo, Atoka, Marble Falls, BarnettTIFF1,700 to 7,339Oct 9, 2009run Apr 25, 200627.9
RESISTIVITYSpans Caddo, Atoka, Marble Falls, BarnettTIFF1,772 to 7,339Oct 9, 2009run Apr 25, 200631.6

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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/25130869, documented in the API reference.