TEXAS · WELLS · UPTON COUNTY · NEAL RANCH "44" Z LEASE · API 42-461-33857 · DISTRICT 6E

Neal Ranch 44 Z #1

Plugged

Upton County · Spraberry (Trend Area) field  · Vertical

Neal Ranch 44 Z #1 (API 42-461-33857) is a plugged well in Upton County, plugged October 4, 2024, last operated by Cog Operating LLC.

The RRC has issued one drilling permit, issued September 11, 1997, permitted to 10,150 ft.

It was permitted by Arco Permian and has since transferred to Cog Operating LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Clear Fork, Spraberry, Dean, Wolfcamp.

Its lease has reported 46.8K barrels of oil and 59.4K mcf of gas since November 1997, last reporting volume in December 2023.

Operator of record

COG Operating LLC

Permitted by Arco Permian; the EWA schedule now lists a different operator.

Based in
Midland, TX
P-5 status
Active – Extension (X)
P-5 last filed
Jun 2, 2026
Permits on file
4,568
Phone
(432) 683-7443

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsCOG Operating LLCthrough Dec 2023
Latest permitArco PermianSep 11, 1997

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

10,150
total depth, ft
1
permits on file
Sep 11, 1997
last permit issued
Nov 5, 1997
completed
46.8K
cumulative oil, bbl
59.4K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 1997 THROUGH Dec 2023

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Nov 5, 1997
Shut in
—
Plugged
Oct 4, 2024

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
Neal Ranch "44" Z O-9-14703Spraberry (Trend Area)COG Operating LLC146.8K59.4KNov 1997 – Dec 2023

Oil, barrels lease total

Last 12 months 0 · prior 12 0

050100202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

050100150202420252026

Chain of custody

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

  1. 1Arco PermianDec 1997 → Dec 2001
  2. 2BP America Production CompanyJan 2002 → Nov 2010
  3. 3Apache CorporationDec 2010 → May 2022
  4. 4COG Operating LLCJun 2022 → Jun 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
467063-99DrillArco PermianSep 3, 1997Sep 11, 1997Sep 24, 199710,150

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 5, 1997Neal Ranch 44 Z O-9-14703Spraberry (Trend Area)COG Operating LLCPlugged—

Formation tops

As filed on W-2/G-1. Subsea from 2,802 ft elevation.Download CSV →

FormationMD ftSubsea
Clear ForkCLEARFORK6,851-4,049
Spraberry7,679-4,877
Dean9,071-6,269
Wolfcamp9,232-6,430

Perforations

Perforated and open-hole intervals.

FromToType
7,7907,810Perforated
8,5308,550Perforated
9,3809,400Perforated
9,7909,810Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7540514.75200 S
8.6254,99511400 S
5.510,0187.875960 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 28, 1998Jan 7, 1998Yes
00Jan 14, 1998——

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.

Find logs withinmiles of this well:List →Map →

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/46133857, documented in the API reference.