WELL · 42-461-36245 · DISTRICT 7

Madeline Kate #4016

Plugged

Upton County · Spraberry (Trend Area) field  · Vertical

Madeline Kate #4016 (API 42-461-36245) is a plugged well in Upton County, plugged June 25, 2025, last operated by Cog Operating LLC.

The RRC has issued one drilling permit, issued December 19, 2008, permitted to 10,800 ft.

It was permitted by Henry Petroleum LP and has since transferred to Cog Operating LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Spraberry, Dean, Wolfcamp, Base Big Lime.

Its lease has reported 1.02M barrels of oil and 2.71M mcf of gas since July 2008, last reporting in July 2026. The lease carries 20 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

Permitted by Henry Petroleum LP; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed May 4, 2026 · 4,568 permits on file · (432) 853-2355

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsCOG Operating LLCthrough Apr 2026
Latest permitHenry Petroleum LPDec 19, 2008

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

10,800
total depth, ft
1
permits on file
Dec 19, 2008
last permit issued
Jun 30, 2010
completed
1.02M
cumulative oil, bbl
2.71M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jun 30, 2010
Shut in
—
Plugged
Jun 25, 2025

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 20 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Madeline Kate O-9-16631Spraberry (Trend Area)COG Operating LLC201.02M2.71MJul 2008 – Jul 2026

Oil, barrels lease total

Last 12 months 6,524 · prior 12 8,928(-27%)

05001K1.5K202420252026

Gas, mcf lease total

Last 12 months 13,522 · prior 12 21,795(-38%)

02K4K202420252026

Chain of custody

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

  1. 1Henry Petroleum LPJul 2008 → Dec 2008
  2. 2COG Operating LLCJan 2009 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
676349-99DrillHenry Petroleum LPDec 15, 2008Dec 19, 2008May 4, 201010,800

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-16631————

Formation tops

As filed on W-2/G-1. Subsea from 2,776 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,280-4,504
Dean8,630-5,854
Wolfcamp8,760-5,984
WolfcampLOWER WOLFCAMP9,095-6,319
Base Big Lime10,385-7,609

Perforations

Perforated and open-hole intervals.

FromToType
8,03510,369Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.62582212.25350 S
5.510,5727.875890 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
00Sep 13, 2010Jul 14, 2010Yes
00Aug 4, 2010——

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) and the University Lands library. 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/46136245, documented in the API reference.