WELL · 42-135-42891 · DISTRICT 8

Gardendale 12 #11

Y

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

Gardendale 12 #11 (API 42-135-42891) is a well in Ector County operated by Diamondback E&P LLC, completed August 5, 2015 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued February 21, 2014, permitted to 11,900 ft.

It was permitted by Berry Oil Comp. and has since transferred to Diamondback E&P LLC on the wellbore schedule.

Completion filings report 11 formation tops, including Santa Rosa, Yates, Seven Rivers, San Andres.

Its lease has reported 868K barrels of oil and 3.46M mcf of gas since September 2010, last reporting in July 2026. The lease carries 11 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

Permitted by Berry Oil Comp.; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 permits on file · (855) 247-5920

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDiamondback E&P LLC
Production reportsDiamondback E&P LLCthrough Apr 2026
Latest permitBerry Oil Comp.Feb 21, 2014

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

11,900
total depth, ft
1
permits on file
Feb 21, 2014
last permit issued
Aug 5, 2015
completed
868K
cumulative oil, bbl
3.46M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 5, 2015
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Gardendale 12 O-10-40668Spraberry (Trend Area)Diamondback E&P LLC11868K3.46MSep 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 38,805 · prior 12 12,587(+208%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 125,508 · prior 12 79,972(+57%)

010K20K202420252026

Chain of custody

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

  1. 1Keystone Petroleum GP LLCSep 2010 → Oct 2010
  2. 2Berry Oil Comp.Nov 2010 → Jun 2014
  3. 3Linn Operating, Inc.Jul 2014 → Feb 2015
  4. 4FDL Operating, LLCMar 2015 → Dec 2021
  5. 5Contango Resources, LLCJan 2022 → Nov 2022
  6. 6Slant Operating, LLCDec 2022 → Sep 2025
  7. 7Diamondback E&P LLCOct 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
777534-99DrillBerry Oil Comp.Jan 16, 2014Feb 21, 2014Sep 16, 201411,900

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-40668————

Formation tops

As filed on W-2/G-1. Subsea from 2,977 ft elevation.Download CSV →

FormationMD ftSubsea
Santa RosaSANTA ROSA BASE1,2581,719
Yates3,097-120
Seven Rivers3,373-396
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO4,914-1,937
Glorieta6,082-3,105
Clear ForkCLEARFORK7,195-4,218
Spraberry7,809-4,832
Grayburg——
Holt——
Queen——
Tubb——

Perforations

Perforated and open-hole intervals.

FromToType
7,84810,825Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.751,68314.75940 S
8.6255,500111,470 S
5.511,0277.875828 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
00Aug 8, 2017Aug 3, 2017—
00Sep 21, 2015Aug 24, 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.

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/13542891, documented in the API reference.