WELL · 42-003-41770 · DISTRICT 8

UL Digger SWD #311WD

N

Andrews County · Spraberry (Trend Area) field  · Vertical

UL Digger Swd #311WD (API 42-003-41770) is a well in Andrews County operated by Rattler Midstream Operating LLC, completed May 26, 2014.

The RRC has issued 3 drilling permits between 2010 and 2021, permitted to 10,950 ft.

Completion filings report 4 formation tops, including Clear Fork, Spraberry, Wolfcamp, Strawn.

Its 4 leases have reported 666K barrels of oil and 1.01M mcf of gas since December 2009, last reporting in July 2026. The leases carry 18 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 28.2K barrels injected in the 12 months reported through February 2026; TexNet located 0 M2+ earthquakes within 10 km over the last two years.

Operator of record

Rattler Midstream Operating LLC

Midland, TX · P-5 Y, filed Aug 4, 2025 · 14 permits on file · (855) 247-5920

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleRattler Midstream Operating LLC
Production reportsDiamondback E&P LLCthrough Apr 2026
Latest permitRattler Midstream Operating LLCNov 15, 2021

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

10,950
total depth, ft
3
permits on file
Nov 15, 2021
last permit issued
May 26, 2014
completed
666K
cumulative oil, bbl
1.01M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2009 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 26, 2014
Shut in
—
Plugged
—

Surface location

32.254455, -102.441809

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Andrews County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 4 leases this well is completed on; they carry 18 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
UL Digger O-10-39952Spraberry (Trend Area)Diamondback E&P LLC13647K983KDec 2009 – Jul 2026
UL Digger O-10-56395Block 2 (Grayburg)Rattler Midstream Operating LLC100Nov 2021 – Jul 2026
UL Digger SWD O-10-55887Spraberry (Trend Area)Rattler Midstream Operating LLC100Jul 2021 – Dec 2021
UL 3 O-10-40818Spraberry (Trend Area)Diamondback E&P LLC319.2K28.4KNov 2010 – Sep 2013

Oil, barrels lease total

Last 12 months 21,327 · prior 12 24,704(-14%)

01K2K3K202420252026

Gas, mcf lease total

Last 12 months 19,581 · prior 12 47,849(-59%)

05K10K202420252026

Chain of custody

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

  1. 1Windsor Energy Group, L.L.C.Feb 2010 → Feb 2010
  2. 2Windsor Permian LLCMar 2010 → Jun 2012
  3. 3Diamondback E&P LLCJul 2012 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
874422-99RecompletionRattler Midstream Operating LLCNov 10, 2021Nov 15, 2021Aug 11, 201010,288
723566-99RecompletionWindsor Permian LLCSep 1, 2011Sep 7, 2011Aug 12, 201010,288
697605-99DrillWindsor Permian LLCJun 15, 2010Jun 15, 2010Aug 11, 201010,950

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-39952————
—— O-10-39952————
—— O-10-40818————
—— O-10-55887————
—— O-10-56395————

Formation tops

As filed on W-2/G-1. Subsea from 3,079 ft elevation.Download CSV →

FormationMD ftSubsea
Clear ForkCLEARFORK7,062-3,983
Clear ForkCLEARFORK7,265-4,186
SpraberryUPPER SPRABERRY8,030-4,951
Spraberry8,050-4,971
Wolfcamp8,697-5,618
Strawn10,470-7,391

Perforations

Perforated and open-hole intervals.

FromToType
5,0805,500Perforated
8,3808,935Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,72017.51,050 S
8.6255,235111,400 S
5.59,0847.875755 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
00Dec 6, 2021Nov 16, 2021—
00Sep 13, 2021Jul 15, 2014Yes
00Jan 21, 2015Jul 15, 2014Yes
00Aug 12, 2013Dec 14, 2010Yes
00Sep 27, 2011Dec 14, 2010Yes

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 →

McCollum, F. T. & Wiebusch, G.W.42-003-00950

3.6 KM · Zarvona Energy LLC · Section with this well →

Grayburg4,600-4,350
San Andres4,797-4,547
Glorieta5,586-5,336
Clear Fork6,950-6,700
Clear Fork7,245-6,995
Clear Fork7,245-6,995
Dean8,444-8,194
Wolfcamp8,569-8,319

University 1-3 D42-003-47876

4.4 KM · Zarvona Energy LLC · Section with this well →

Yates3,1260
Seven Rivers3,381-255
Grayburg4,615-1,489
San Andres4,951-1,825
Glorieta5,562-2,436
Clear Fork6,890-3,764
Queen—
Permian (undifferentiated)—

10 TOPS · FIRST 8

University 1-3 C42-003-47875

4.4 KM · Zarvona Energy LLC · Section with this well →

Yates3,026101
Seven Rivers3,301-174
Grayburg4,611-1,484
San Andres4,947-1,820
Glorieta5,550-2,423
Clear Fork6,724-3,597
Mississippian10,513-7,386
Permian (undifferentiated)—

11 TOPS · FIRST 8

University 1-3 B42-003-47874

5.1 KM · Zarvona Energy LLC · Section with this well →

Yates3,1262
Seven Rivers3,360-232
Queen4,552-1,424
Clear Fork4,615-1,487
Grayburg4,615-1,487
San Andres4,908-1,780
Glorieta5,484-2,356
Tubb6,891-3,763

10 TOPS · FIRST 8

UL G 1-15 S42-003-47936

5.1 KM · Elevation Resources LLC · Section with this well →

Yates3,125-21
San Andres4,691-1,587
Glorieta5,675-2,571
Clear Fork6,830-3,726
Queen—
Holt—
Grayburg—
Permian (undifferentiated)—

10 TOPS · FIRST 8

UL G 1-15 S42-003-47935

5.1 KM · Elevation Resources LLC · Section with this well →

Yates3,129-25
San Andres4,602-1,498
Glorieta5,672-2,568
Clear Fork6,854-3,750
Tubb—
Seven Rivers—
Holt—
Grayburg—

10 TOPS · FIRST 8

University 1-3 A42-003-47873

5.1 KM · Zarvona Energy LLC · Section with this well →

Yates3,1262
Seven Rivers3,374-246
Grayburg4,611-1,483
San Andres4,947-1,819
Glorieta5,550-2,422
Clear Fork6,890-3,762
Leon7,059-3,931
Wichita-Albany7,420-4,292

14 TOPS · FIRST 8

UL G 1-1542-003-47804

5.3 KM · Elevation Resources LLC · Section with this well →

Yates3,029104
San Andres4,502-1,369
Glorieta5,572-2,439
Clear Fork6,793-3,660
Seven Rivers—
Queen—
Tubb—
Holt—

10 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

28.2K
bbl, last 12 reported months
964K
bbl, all reported
Feb 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000108130H-1 InjectionActive20,0002,5005,000–5,500

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 28,220 · prior 12 59,629(-53%)

05K10K20252026

TexNet catalog via USGS

Seismicity near this well

0
M2+ events within 10 km, last 2 years
—
largest

A proximity count, not an attribution. How to read it →

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/00341770, documented in the API reference.