WELL · 42-317-36040 · DISTRICT 8

Gilmore #1

Y

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

Gilmore #1 (API 42-317-36040) is a well in Martin County operated by Diamondback E&P LLC, completed May 1, 2021 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 2010 and 2018, permitted to 12,000 ft.

It was permitted by Endeavor Energy Resources L.P. and has since transferred to Diamondback E&P LLC on the wellbore schedule.

Completion filings report 10 formation tops, including Clear Fork, Spraberry, Dean, Wolfcamp.

Its lease has reported 53.3K barrels of oil and 192K mcf of gas since June 2010, last reporting in July 2026.

Operator of record

Diamondback E&P LLC

Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 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 Feb 2025
Latest permitEndeavor Energy Resources L.P.Jul 9, 2018

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

12,000
total depth, ft
2
permits on file
Jul 9, 2018
last permit issued
May 1, 2021
completed
53.3K
cumulative oil, bbl
192K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 1, 2021
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.381664, -101.707444

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 lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Gilmore O-10-40160Spraberry (Trend Area)Diamondback E&P LLC153.3K192KJun 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 0 · prior 12 586(-100%)

05001K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

05001K1.5K202420252026

Chain of custody

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

  1. 1Trilogy Operating, Inc.Jul 2010 → Nov 2015
  2. 2Double Eagle Operating, LLCDec 2015 → Jan 2016
  3. 3DE Operating LLCFeb 2016 → Mar 2017
  4. 4Endeavor Energy Resources L.P.Apr 2017 → Dec 2024
  5. 5Diamondback E&P LLCJan 2025 → Feb 2025

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
840984-99RecompletionEndeavor Energy Resources L.P.Jun 7, 2018Jul 9, 2018—10,807
696589-99DrillTrilogy Operating, Inc.May 26, 2010May 27, 2010Jun 3, 201012,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-40160————

Formation tops

As filed on W-2/G-1. Subsea from 2,585 ft elevation.Download CSV →

FormationMD ftSubsea
Clear ForkCLEARFORK5,055-2,470
Spraberry6,700-4,115
SpraberrySPRAYBERRY6,700-4,115
Dean8,052-5,467
Wolfcamp8,208-5,623
Strawn9,783-7,198
Atoka9,898-7,313
Atoka9,900-7,315
Azalea Atoka9,900-7,315
Mississippian10,380-7,795
Woodford10,643-8,058
Fusselman10,696-8,111

Perforations

Perforated and open-hole intervals.

FromToType
6,4956,510Open hole
6,57210,348Perforated
8,1128,130Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37533817.5340 S
8.6254,412111,015 S
5.510,8057.8751,030 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 18, 2021Aug 5, 2021—
00Jun 15, 2021May 27, 2021—
00Nov 28, 2018Oct 15, 2018—
00Sep 12, 2018Jun 29, 2018—
00Sep 22, 2010Jul 26, 2010Yes
00Sep 17, 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.

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 →

Grantham West 50-48 Unit42-317-44890

0.5 KM · Diamondback E&P LLC · Section with this well →

Yates2,004575
Queen2,747-168
Grayburg3,278-699
San Andres3,882-1,303
Glorieta4,379-1,800
Clear Fork5,011-2,432
Spraberry6,740-4,161
Dean8,027-5,448

10 TOPS · FIRST 8

Grantham West 50-48 Unit42-317-44889

0.5 KM · Diamondback E&P LLC · Section with this well →

Yates1,999580
Queen2,752-173
Grayburg3,283-704
San Andres3,861-1,282
Glorieta4,381-1,802
Clear Fork5,010-2,431
Spraberry6,740-4,161
Santa Rosa—

10 TOPS · FIRST 8

Grantham West 50-48 Unit42-317-44877

0.5 KM · Diamondback E&P LLC · Section with this well →

Yates1,996583
Queen2,750-171
Grayburg3,287-708
San Andres3,863-1,284
Glorieta4,374-1,795
Clear Fork5,003-2,424
Spraberry6,732-4,153
Cisco—

19 TOPS · FIRST 8

Grantham West 50-48 Unit42-317-44876

0.5 KM · Diamondback E&P LLC · Section with this well →

Yates1,995584
Queen2,749-170
San Andres3,862-1,283
Glorieta4,379-1,800
Clear Fork5,000-2,421
Spraberry6,733-4,154
Dean8,021-5,442
Wolfcamp8,139-5,560

10 TOPS · FIRST 8

Grantham West 50-48 Unit42-317-44873

0.5 KM · Diamondback E&P LLC · Section with this well →

Yates1,966614
Queen2,747-167
Grayburg3,277-697
San Andres3,858-1,278
Glorieta4,375-1,795
Clear Fork5,005-2,425
Spraberry6,733-4,153
Dean8,022-5,442

10 TOPS · FIRST 8

Grantham West 50-48 Unit42-317-44870

0.5 KM · Diamondback E&P LLC · Section with this well →

Yates2,006574
Queen2,754-174
Grayburg3,288-708
San Andres3,889-1,309
Glorieta4,384-1,804
Clear Fork5,015-2,435
Spraberry5,747-3,167
Dean—

10 TOPS · FIRST 8

Pritchard '51'42-317-35186

0.5 KM · Endeavor Energy Resources L.P. · Section with this well →

Clear Fork5,050-2,477
Spraberry6,750-4,177
Dean8,000-5,427
Wolfcamp8,350-5,777
Strawn9,725-7,152
Mississippian9,850-7,277
Mississippian10,225-7,652
Atoka—

Grantham West 50-48 Unit42-317-44871

0.8 KM · Diamondback E&P LLC · Section with this well →

Yates2,007579
Queen2,754-168
Grayburg3,272-686
San Andres3,848-1,262
Clear Fork5,024-2,438
Spraberry6,749-4,163
Dean8,050-5,464
Wolfcamp—

12 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/31736040, documented in the API reference.