TEXAS · WELLS · REEVES COUNTY · CALDWELL STATE 71-5 LEASE · API 42-389-32494 · DISTRICT 7B

Caldwell State 71-5 #1H

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Reeves County · Toyah NW (Shale) field · Producing  · Horizontal

Caldwell State 71-5 #1H (API 42-389-32494) is a horizontal well in Reeves County operated by Permian Resources Operating LLC, completed May 2, 2008 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 11, 2007, permitted to 10,867 ft.

It was permitted by Chesapeake Operating, Inc. and has since transferred to Permian Resources Operating LLC on the wellbore schedule.

Completion filings report 5 formation tops, including Lamar, Bspg, Wolfcamp, Morrow.

Its lease has reported 75 barrels of oil and 2.54M mcf of gas since May 2008, last reporting volume in April 2026.

Operator of record

Permian Resources Operating LLC

Permitted by Chesapeake Operating, Inc.; the EWA schedule now lists a different operator.

Based in
Midland, TX
P-5 status
Active (A)
P-5 last filed
Nov 25, 2025
Permits on file
608
Phone
(432) 695-4222

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePermian Resources Operating LLC
Production reportsPermian Resources Operating, LLCthrough Apr 2026
Latest permitChesapeake Operating, Inc.Oct 11, 2007

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

10,867
total depth, ft
1
permits on file
Oct 11, 2007
last permit issued
May 2, 2008
completed
75
cumulative oil, bbl
2.54M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2008 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 2, 2008
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
Caldwell State 71-5 G-10-246598Toyah, NW (Shale)Permian Resources Operating, LLC1752.54MMay 2008 – Apr 2026

Gas, mcf lease total

Last 12 months 10,805 · prior 12 5,884(+84%)

02K4K202420252026

Chain of custody

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

  1. 1Chesapeake Operating, Inc.May 2008 → Sep 2012
  2. 2Shell Western E&POct 2012 → Dec 2014
  3. 3COG Operating LLCJan 2015 → Dec 2017
  4. 4Luxe Operating LLCJan 2018 → May 2021
  5. 5Colgate Operating, LLCJun 2021 → Dec 2022
  6. 6Permian Resources Operating, LLCApr 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
647349-99DrillChesapeake Operating, Inc.Oct 5, 2007Oct 11, 2007Dec 17, 200716,000

Completions

CompletedLeaseFieldOperatorStatusDepth
May 2, 2008Caldwell State 71-5 G-10-246598Toyah NW (Shale)Permian Resources Operating LLCProducing10,867

Formation tops

As filed on W-2/G-1. Subsea from 3,034 ft elevation.Download CSV →

FormationMD ftSubsea
Lamar3,684-650
Bspg6,605-3,571
WolfcampWFMP8,998-5,964
MorrowMORROW HOT SHALE10,045-7,011
Wdfd11,197-8,163

Perforations

Perforated and open-hole intervals.

FromToType
12,00014,602Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,86917.51,490 S
9.6256,78412.25705 S
5.514,7156.5860 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
00May 18, 2009Jun 11, 2008Yes
00Apr 27, 2009——

Well logs

4 logs loaded from the RRC's log index, the latest received Apr 11, 2011. 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
NEUTRON POROSITYSpans Bspg, Wolfcamp, MorrowTIFF6,782 to 10,680Apr 11, 2011run Jan 12, 20085.15
RESISTIVITYSpans Bspg, Wolfcamp, MorrowTIFF6,782 to 10,680Apr 11, 2011run Jan 12, 20085.59
NEUTRON/DENSITY POROSITYSpans Lamar, BspgTIFF200 to 6,790Apr 11, 2011run Dec 29, 20072.61
RESISTIVITYSpans Lamar, BspgTIFF1,869 to 6,790Apr 11, 2011run Dec 29, 20073.76

"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. The University Lands library has no per-well link: then paste it into its 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/38932494, documented in the API reference.