TEXAS · WELLS · ANDREWS COUNTY · MUSTANG LEASE · API 42-003-44119 · DISTRICT 7B

Mustang #3412

Y

Andrews County · Spraberry (Trend Area) field · Producing  · Vertical

Fields on the latest permit · any of 3
Lowe (Atoka) · Mabee (Strawn) · Spraberry (Trend Area)
Not one formation; the well must be completed in one of them, and no target formation is stated.

Mustang #3412 (API 42-003-44119) is a well in Andrews County operated by Cog Operating LLC, completed October 15, 2012 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued April 25, 2012, permitted to 11,779 ft.

It was permitted by Oxy USA Inc. and has since transferred to Cog Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Spraberry, Wolfcamp, Strawn.

Its lease has reported 774K barrels of oil and 3.19M mcf of gas since November 2009, last reporting volume in April 2026. The lease carries 14 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

Permitted by OXY USA Inc.; 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 Apr 2026
Latest permitOXY USA Inc.Apr 25, 2012

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

11,779
total depth, ft
2
permits on file
Apr 25, 2012
last permit issued
Oct 15, 2012
completed
774K
cumulative oil, bbl
3.19M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2009 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 15, 2012
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; they carry 14 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mustang O-10-39864Spraberry (Trend Area)COG Operating LLC14774K3.19MNov 2009 – Apr 2026

Gas, mcf lease total

Last 12 months 251,974 · prior 12 312,803(-19%)

020K40K202420252026

Oil, barrels lease total

Last 12 months 18,558 · prior 12 32,168(-42%)

05K10K202420252026

Chain of custody

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

  1. 1High Sky Partners LLCNov 2009 → May 2011
  2. 2OXY USA Inc.Jun 2011 → Jul 2017
  3. 3COG Operating LLCAug 2017 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
736191-98DrillOXY USA Inc.Apr 28, 2012Apr 25, 2012Jul 19, 201212,500
736191-99DrillOXY USA Inc.Mar 15, 2012Apr 25, 2012—12,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 15, 2012Mustang O-10-39864Spraberry (Trend Area)COG Operating LLCProducing11,779

Formation tops

As filed on W-2/G-1. Subsea from 2,918 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry8,227-5,309
Wolfcamp9,572-6,654
Strawn10,877-7,959

Perforations

Perforated and open-hole intervals.

FromToType
8,5788,782Perforated
9,0029,214Perforated
9,6949,844Perforated
10,12410,266Perforated
10,75910,934Perforated
11,35611,467Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.751,71214.75940 S
8.6255,73210.625830 S
5.511,7797.8751,000 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
00Apr 8, 2014Aug 7, 2013Yes

Well logs

1 log loaded from the RRC's log index, the latest received Nov 2, 2017. Neutron. 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
NeutronSpans Spraberry, Wolfcamp, StrawnTIFF5,700 to 11,645Nov 2, 20171.84

"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/00344119, documented in the API reference.