WELL · 42-317-33371 · DISTRICT 8

Cowden Courtney #1

N

Martin County · Greentree North (Strawn) field  · Vertical

Cowden Courtney #1 (API 42-317-33371) is a well in Martin County operated by Endeavor Energy Resources L.P., completed October 16, 1986.

The RRC has issued 2 drilling permits (amended once) between 1986 and 2014, permitted to 13,200 ft.

Completion filings report 16 formation tops, including Santa Rosa, Yates, Queen, Grayburg.

Its 2 leases have reported 101K barrels of oil and 368K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.

Operator of record

Endeavor Energy Resources L.P.

Midland, TX · P-5 Y, filed Apr 4, 2026 · 6,190 permits on file · (855) 247-5920

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleEndeavor Energy Resources L.P.
Production reportsDiamondback E&P LLCthrough Apr 2026
Latest permitEndeavor Energy Resources L.P.Jul 8, 2014

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

13,200
total depth, ft
3
permits on file
Jul 8, 2014
last permit issued
Oct 16, 1986
completed
101K
cumulative oil, bbl
368K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Oct 16, 1986
Shut in
—
Plugged
—

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 2 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Courtney Cowden O-10-47116Spraberry (Trend Area)Diamondback E&P LLC140.6K209KSep 2014 – Jul 2026
Cowden, Courtney O-10-30904Greentree,north (Strawn)Endeavor Energy Resources L.P.260.5K159KJan 1993 – Dec 2015

Oil, barrels lease total

Last 12 months 1,233 · prior 12 1,720(-28%)

0200400202420252026

Gas, mcf lease total

Last 12 months 3,123 · prior 12 7,219(-57%)

05001K202420252026

Chain of custody

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

  1. 1Heritage Resources, Inc.Jan 1993 → Oct 2001
  2. 2Stephens, Autry C.Aug 1999 → Aug 1999
  3. 3Heritage Standard CorporationNov 2001 → Sep 2002
  4. 4Endeavor Energy Resources L.P.Oct 2002 → Jun 2020
  5. 5Diamondback E&P LLCJul 2020 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
785785-98RecompletionEndeavor Energy Resources L.P.Nov 25, 2015Jul 8, 2014Jun 3, 201411,322
785785-99RecompletionEndeavor Energy Resources L.P.Apr 29, 2014Jul 8, 2014—12,000
303871-99DrillHeritage Resources, Inc.Jul 7, 1986Jul 7, 1986Jul 19, 198613,200

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-30904————
—— O-10-47116————

Formation tops

As filed on W-2/G-1. Subsea from 2,866 ft elevation.Download CSV →

FormationMD ftSubsea
Santa Rosa1,0001,866
Yates2,700166
Queen4,100-1,234
Grayburg4,300-1,434
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H5,540-2,674
Spraberry7,962-5,096
Strayberry7,966-5,100
Cisco8,500-5,634
Dean9,291-6,425
Wolfcamp9,377-6,511
Pennsylvanian9,400-6,534
Strawn10,391-7,525
Atoka10,591-7,725
Devonian11,784-8,918
Fusselman12,366-9,500
Ellenburger12,961-10,095

Perforations

Perforated and open-hole intervals.

FromToType
8,77111,209Perforated
10,43810,446Perforated
10,45610,468Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37538017.5400 S
9.6254,71812.252,200 S
5.511,3196550 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 29, 2015Sep 4, 2015Yes
00Nov 4, 1986Oct 21, 1986Yes
00Nov 1, 1986——

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/31733371, documented in the API reference.