WELL · 42-317-43697 · DISTRICT 8

Doolittle 12 #301

Y

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

Doolittle 12 #301 (API 42-317-43697) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed January 5, 2022 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued August 16, 2021, permitted to 10,721 ft.

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

Completion filings report 11 formation tops, including Santa Rosa, Yates, Queen, Grayburg.

Its lease has reported 707K barrels of oil and 740K mcf of gas since October 2021, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

Permitted by Lario Oil & Gas Company; 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 Apr 2026
Latest permitLario Oil & Gas CompanyAug 16, 2021

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

10,721
total depth, ft
1
permits on file
Aug 16, 2021
last permit issued
Jan 5, 2022
completed
707K
cumulative oil, bbl
740K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2021 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 5, 2022
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.227271, -101.757068

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; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Doolittle 12 O-10-56342Spraberry (Trend Area)Diamondback E&P LLC2707K740KOct 2021 – Jul 2026

Oil, barrels lease total

Last 12 months 62,701 · prior 12 106,104(-41%)

010K20K202420252026

Gas, mcf lease total

Last 12 months 127,595 · prior 12 181,920(-30%)

010K20K30K202420252026

Chain of custody

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

  1. 1Lario Oil & Gas CompanyJan 2022 → Feb 2023
  2. 2Diamondback E&P LLCMar 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
871399-99DrillLario Oil & Gas CompanyJul 20, 2021Aug 16, 2021Sep 8, 202110,721

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-56342————

Formation tops

As filed on W-2/G-1. Subsea from 2,587 ft elevation.Download CSV →

FormationMD ftSubsea
Santa Rosa8331,754
Yates2,126461
Queen2,968-381
Grayburg3,521-934
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H3,749-1,162
Spraberry6,858-4,271
Dean8,192-5,605
Wolfcamp8,356-5,769
Wolfcamp8,536-5,949
Cisco——
Pennsylvanian——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
9,15619,131Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,54917.5920 S
9.6257,82312.25615 S
5.519,2388.52,490 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
00Apr 27, 2022Mar 21, 2022Yes
00Nov 19, 2021Nov 5, 2021—

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 →

Doolittle 1342-317-43698

0.0 KM · Lario Oil & Gas Company · Section with this well →

Santa Rosa8331,754
Yates2,126461
Queen2,968-381
Grayburg3,521-934
San Andres3,749-1,162
Spraberry6,858-4,271
Dean8,192-5,605
Wolfcamp8,356-5,769

10 TOPS · FIRST 8

Doolittle 1242-317-43699

0.0 KM · Lario Oil & Gas Company · Section with this well →

Santa Rosa8121,775
Yates2,134453
Queen2,983-396
Grayburg3,520-933
San Andres3,724-1,137
Spraberry6,875-4,288
Cisco—
Pennsylvanian—

10 TOPS · FIRST 8

Matchless 2842-317-44351

0.1 KM · Fourpoint Energy, LLC · Section with this well →

Santa Rosa8571,730
Yates2,125462
Queen2,965-378
Grayburg3,526-939
San Andres3,834-1,247
Spraberry6,842-4,255
Ellenburger—
Wolfcamp—

10 TOPS · FIRST 8

Matchless 2842-317-44355

0.1 KM · Fourpoint Energy, LLC · Section with this well →

Santa Rosa8571,730
Yates2,127460
Queen2,960-373
Grayburg3,518-931
San Andres3,829-1,242
Spraberry6,843-4,256
Dean8,156-5,569
Wolfcamp8,347-5,760

10 TOPS · FIRST 8

Matchless 2842-317-44325

0.2 KM · Fourpoint Energy, LLC · Section with this well →

Santa Rosa8551,732
Yates2,124463
Queen2,960-373
Grayburg3,518-931
San Andres3,832-1,245
Spraberry6,825-4,238
Dean8,150-5,563
Wolfcamp8,350-5,763

10 TOPS · FIRST 8

Matchless 2842-317-44324

0.2 KM · Fourpoint Energy, LLC · Section with this well →

Santa Rosa8541,733
Yates2,122465
Queen2,961-374
Grayburg3,525-938
San Andres3,836-1,249
Spraberry6,819-4,232
Cisco—
Wolfcamp—

10 TOPS · FIRST 8

Matchless 2842-317-44349

0.2 KM · Fourpoint Energy, LLC · Section with this well →

Santa Rosa8621,728
Yates2,135455
Queen2,978-388
Grayburg3,536-946
San Andres3,831-1,241
Clear Fork5,558-2,968
Spraberry6,847-4,257
Dean8,165-5,575

10 TOPS · FIRST 8

Matchless 2842-317-44348

0.2 KM · Fourpoint Energy, LLC · Section with this well →

Santa Rosa8641,726
Yates2,138452
Queen2,983-393
Grayburg3,538-948
San Andres3,838-1,248
Clear Fork5,564-2,974
Spraberry6,841-4,251
Dean8,171-5,581

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/31743697, documented in the API reference.