TEXAS · WELLS · MIDLAND COUNTY · WILLIS "44" LEASE · API 42-329-35099 · DISTRICT 7B

Willis 44 #3

Y

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

Willis 44 #3 (API 42-329-35099) is a well in Midland County operated by Diamondback E&P LLC, completed September 4, 2004 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 2004 and 2017, permitted to 11,150 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 6 formation tops, including Spraberry, U. Wolfcamp Lime, Wolfcamp, Strawn.

Its lease has reported 421K barrels of oil and 1.96M mcf of gas since February 2003, last reporting in July 2026. The lease carries 8 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

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

Based in
Midland, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 4, 2026
Permits on file
5,237
Phone
(432) 221-7400

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.Mar 9, 2017

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

11,150
total depth, ft
2
permits on file
Mar 9, 2017
last permit issued
Sep 4, 2004
completed
421K
cumulative oil, bbl
1.96M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2003 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 4, 2004
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Willis "44" O-10-37065Spraberry (Trend Area)Diamondback E&P LLC8421K1.96MFeb 2003 – Jul 2026

Oil, barrels lease total

Last 12 months 1,863 · prior 12 3,648(-49%)

0200400600202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 33(-100%)

05001K202420252026

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.Feb 2003 → Dec 2024
  2. 2Diamondback E&P LLCJan 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
823823-99RecompletionEndeavor Energy Resources L.P.Feb 28, 2017Mar 9, 2017Aug 24, 200411,150
545139-99DrillEndeavor Energy Resources L.P.Apr 29, 2004Apr 30, 2004Jun 3, 200412,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Sep 4, 2004Willis 44 O-10-37065Spraberry (Trend Area)Diamondback E&P LLCProducing11,150
Sep 4, 2004Willis 44 O-10-37065Spraberry (Trend Area)Diamondback E&P LLCProducing11,150

Formation tops

As filed on W-2/G-1. Subsea from 2,697 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,425-4,728
SpraberryUPPER SPRABERRY7,425-4,728
SpraberryLOWER SPRABERRY7,975-5,278
U. Wolfcamp Lime9,375-6,678
Wolfcamp9,375-6,678
Strawn10,465-7,768
StrawnSTRAWN LIME10,465-7,768
Bend10,675-7,978
Atoka10,825-8,128

Perforations

Perforated and open-hole intervals.

FromToType
8,0219,829Perforated
8,02110,949Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7537417.5450 S
8.6255,12311425 S
4.511,1507.8751,270 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
00Mar 28, 2017Mar 18, 2017—
00Jan 10, 2005Sep 22, 2004Yes
00Nov 9, 2004——

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). 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/32935099, documented in the API reference.