WELL · 42-461-36315 · DISTRICT 7

Lone Star 73F #1

Y

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

Lone Star 73f #1 (API 42-461-36315) is a well in Upton County operated by Diamondback E&P LLC, completed August 21, 2009 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits (amended once) between 2009 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 8 formation tops, including Yates, Spraberry, Dean, Wolfcamp.

Its lease has reported 48.8K barrels of oil and 152K mcf of gas since August 2009, 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 · 5,237 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 permitEndeavor Energy Resources L.P.Jun 13, 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
3
permits on file
Jun 13, 2018
last permit issued
Aug 21, 2009
completed
48.8K
cumulative oil, bbl
152K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2009 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 21, 2009
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.444698, -102.065082

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Upton 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
Lone Star "73F" O-9-17076Spraberry (Trend Area)Diamondback E&P LLC148.8K152KAug 2009 – Jul 2026

Oil, barrels lease total

Last 12 months 999 · prior 12 1,214(-18%)

0100200300202420252026

Gas, mcf lease total

Last 12 months 1,189 · prior 12 2,159(-45%)

0200400600202420252026

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.Aug 2009 → Dec 2024
  2. 2Diamondback E&P LLCJan 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
841133-99RecompletionEndeavor Energy Resources L.P.Jun 12, 2018Jun 13, 2018—11,280
681367-98DrillEndeavor Energy Resources L.P.Dec 8, 2009May 20, 2009May 27, 200912,000
681367-99DrillLCX Energy, LLCMay 19, 2009May 20, 2009May 27, 200912,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-17076————

Formation tops

As filed on W-2/G-1. Subsea from 2,791 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,575216
Spraberry7,475-4,684
Dean8,800-6,009
WolfcampWOLFCAMP LIME8,950-6,159
PennsylvanianPENN LIME10,425-7,634
Strawn10,425-7,634
Bend10,808-8,017
Atoka11,225-8,434
AtokaATOKA SHALE11,225-8,434

Perforations

Perforated and open-hole intervals.

FromToType
8,41310,393Perforated
8,41311,140Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37548117.5500 S
8.6255,14511700 S
4.511,2807.8751,166 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
00Jul 25, 2018Jul 20, 2018—
00May 25, 2010Nov 9, 2009Yes
00Feb 25, 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 →

Lone Star '73E'42-461-36150

0.9 KM · LCX Energy, LLC · Section with this well →

Yates2,600189
Spraberry7,525-4,736
Dean8,825-6,036
Wolfcamp8,975-6,186
Strawn10,612-7,823
Bend10,750-7,961
Bend10,810-8,021
Atoka11,200-8,411

Lone Star '73D'42-461-36142

1.5 KM · LCX Energy, LLC · Section with this well →

Clear Fork7,275-4,477
Spraberry7,550-4,752
Dean8,850-6,052
Wolfcamp9,000-6,202
Pennsylvanian10,475-7,677

Cordes42-461-34880

2.5 KM · LCX Energy, LLC · Section with this well →

Yates2,630184
San Andres4,950-2,136
Spraberry8,000-5,186
Dean8,700-5,886
Wolfcamp9,225-6,411
Wolfcamp10,000-7,186
Strawn10,265-7,451

Cordes42-461-34739

2.9 KM · Perenco LLC · Section with this well →

Grayburg4,846-2,032
Clear Fork6,679-3,865
Spraberry7,470-4,656
Strawn10,275-7,461
Atoka—

Last Call Unit42-461-41801

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

Yates2,572208
Grayburg4,583-1,803
San Andres4,695-1,915
Clear Fork6,694-3,914
Spraberry7,512-4,732
Spraberry7,770-4,990
Jo Mill8,118-5,338
Spraberry8,472-5,692

12 TOPS · FIRST 8

Last Call Unit42-461-41802

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

Yates2,571209
Grayburg4,584-1,804
San Andres4,698-1,918
Clear Fork6,690-3,910
Spraberry7,518-4,738
Spraberry7,769-4,989
Spraberry7,769-4,989
Jo Mill8,118-5,338

17 TOPS · FIRST 8

Graf, J.H. NCT-442-461-02982

3.3 KM · Rayden · Section with this well →

Yates2,610188
San Andres4,770-1,972
Spraberry7,578-4,780

Long Shot Unit42-461-41803

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

Yates2,567209
Grayburg4,569-1,793
San Andres4,683-1,907
San Andres4,683-1,907
Clear Fork6,680-3,904
Spraberry7,500-4,724
Spraberry7,500-4,724
Spraberry7,766-4,990

13 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

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