WELL · 42-317-39605 · DISTRICT 8

Mabee 139 X4 #1028H

N

Martin County · Spraberry (Trend Area) field  · Horizontal

Mabee 139 X4 #1028H (API 42-317-39605) is a horizontal well in Martin County operated by Cog Operating LLC, completed January 30, 2015.

The RRC has issued one drilling permit (amended once), issued August 19, 2014, permitted to 12,500 ft.

Completion filings report 10 formation tops, including Yates, Queen, Grayburg, San Andres.

Its 2 leases have reported 4.51M barrels of oil and 10.2M mcf of gas since April 2008, last reporting in July 2026. The leases carry 125 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

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 permitCOG Operating LLCAug 19, 2014
12,500
total depth, ft
2
permits on file
Aug 19, 2014
last permit issued
Jan 30, 2015
completed
4.51M
cumulative oil, bbl
10.2M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jan 30, 2015
Shut in
—
Plugged
—

Surface location

32.201239, -102.196772

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Martin County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 125 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mabee 139 O-10-38792Spraberry (Trend Area)COG Operating LLC1234.5M10.1MApr 2008 – Jul 2026
Mabee 139 X4 O-10-54674Spraberry (Trend Area)COG Operating LLC210.4K32KJan 2020 – Jul 2026

Oil, barrels lease total

Last 12 months 36,579 · prior 12 66,409(-45%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 107,520 · prior 12 208,060(-48%)

010K20K30K202420252026

Chain of custody

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

  1. 1Reliance Energy, Inc.Apr 2008 → Dec 2010
  2. 2OXY USA Inc.Jan 2011 → Jul 2017
  3. 3COG Operating LLCAug 2017 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
788508-98DrillCOG Operating LLCOct 2, 2020Aug 19, 2014Aug 31, 201412,500
788508-99DrillOXY USA Inc.Jun 3, 2014Aug 19, 2014Aug 31, 201412,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-38792————
—— O-10-54674————
—— O-10-54674————

Formation tops

As filed on W-2/G-1. Subsea from 2,883 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,978-95
Queen4,005-1,122
Grayburg4,706-1,823
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,980-2,097
Spraberry8,253-5,370
Dean9,434-6,551
Wolfcamp9,656-6,773
Cisco——
Pennsylvanian——
Santa Rosa——

Perforations

Perforated and open-hole intervals.

FromToType
10,12511,817Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.751,71514.75930 S
8.6259,01210.625800 S
5.512,0337.875380 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
00Dec 11, 2020Nov 16, 2020—
00Oct 20, 2020Jan 6, 2020—
00Sep 29, 2020Jul 8, 2015Yes
00Jul 24, 2015Jul 8, 2015Yes

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.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Mabee Dda 1708JS42-317-42737

0.5 KM · COG Operating LLC · Section with this well →

Santa Rosa1,2261,661
Yates2,973-86
Queen4,062-1,175
Grayburg4,262-1,375
San Andres4,672-1,785
Spraberry8,238-5,351
Dean—
Wolfcamp—

10 TOPS · FIRST 8

Mabee Dda 1710JS42-317-42736

0.5 KM · COG Operating LLC · Section with this well →

Santa Rosa1,2261,661
Yates2,973-86
Queen4,062-1,175
Grayburg4,262-1,375
San Andres4,672-1,785
Spraberry8,238-5,351
Cisco—
Dean—

10 TOPS · FIRST 8

Mabee Dda 1712JS42-317-42735

0.5 KM · COG Operating LLC · Section with this well →

Santa Rosa1,2271,661
Yates2,974-86
Queen4,063-1,175
Grayburg4,263-1,375
San Andres4,673-1,785
Glorieta5,659-2,771
Clear Fork6,896-4,008
Spraberry8,239-5,351

10 TOPS · FIRST 8

Mabee Dda J1342-317-43062

0.6 KM · COG Operating LLC · Section with this well →

Santa Rosa1,2401,641
Yates3,001-120
Queen3,820-939
Grayburg4,020-1,139
San Andres5,005-2,124
Spraberry8,241-5,360
Pennsylvanian—
Wolfcamp—

10 TOPS · FIRST 8

Mabee Dda J1242-317-43061

0.6 KM · COG Operating LLC · Section with this well →

Santa Rosa1,2401,641
Yates3,001-120
Queen3,820-939
Grayburg4,020-1,139
San Andres5,005-2,124
Spraberry8,241-5,360
Dean—
Wolfcamp—

10 TOPS · FIRST 8

Mabee Dda 1706JS42-317-42738

0.9 KM · COG Operating LLC · Section with this well →

Yates2,969-88
Queen4,058-1,177
Grayburg4,258-1,377
San Andres4,668-1,787
Spraberry8,234-5,353
Cisco—
Wolfcamp—
Strawn—

10 TOPS · FIRST 8

Mabee Dda 1704JS42-317-42739

0.9 KM · COG Operating LLC · Section with this well →

Santa Rosa1,2221,659
Yates2,969-88
Queen4,058-1,177
Grayburg4,258-1,377
San Andres4,668-1,787
Spraberry8,234-5,353
Dean—
Pennsylvanian—

10 TOPS · FIRST 8

Mabee Dda 1703JA42-317-42740

0.9 KM · COG Operating LLC · Section with this well →

Santa Rosa1,2221,659
Yates2,969-88
Queen4,058-1,177
Grayburg4,528-1,647
San Andres4,668-1,787
Spraberry8,234-5,353
Dean9,505-6,624
Wolfcamp9,675-6,794

10 TOPS · FIRST 8

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/31739605, documented in the API reference.