WELL · 42-317-44665 · DISTRICT 8

Blackjack 16-21 A #201H

N

Martin County · Spraberry (Trend Area) field  · Horizontal

Blackjack 16-21 A #201H (API 42-317-44665) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed December 24, 2022.

The RRC has issued one drilling permit (amended 4 times), issued August 31, 2022, permitted to 9,400 ft.

Completion filings report 12 formation tops, including Santa Rosa, Yates, San Andres, Grayburg.

Its lease has reported 246K barrels of oil and 299K mcf of gas since December 2022, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

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 permitDiamondback E&P LLCAug 31, 2022
9,400
total depth, ft
5
permits on file
Aug 31, 2022
last permit issued
Dec 24, 2022
completed
246K
cumulative oil, bbl
299K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2022 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Dec 24, 2022
Shut in
—
Plugged
—

Surface location

32.108446, -101.924271

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Blackjack 16-21 A O-10-60669Spraberry (Trend Area)Diamondback E&P LLC3246K299KDec 2022 – Jul 2026

Oil, barrels lease total

Last 12 months 245,500 · prior 12 0

050K100K202420252026

Gas, mcf lease total

Last 12 months 299,003 · prior 12 0

050K100K202420252026

Chain of custody

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

  1. 1Diamondback E&P LLCSep 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
883379-95DrillDiamondback E&P LLCFeb 16, 2026Aug 31, 2022Dec 23, 20229,400
883379-96DrillDiamondback E&P LLCAug 19, 2025Aug 31, 2022Dec 23, 20229,400
883379-97DrillPbex Operations, LLCApr 23, 2025Aug 31, 2022Dec 23, 20229,400
883379-98DrillDiamondback E&P LLCOct 12, 2022Aug 31, 2022Dec 23, 20229,400
883379-99DrillDiamondback E&P LLCAug 24, 2022Aug 31, 2022Dec 21, 20229,400

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-60669————
—— O-10-60669————

Formation tops

As filed on W-2/G-1. Subsea from 2,710 ft elevation.Download CSV →

FormationMD ftSubsea
Santa Rosa1,0001,710
Santa Rosa1,742968
Yates2,200510
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H3,500-790
Grayburg3,950-1,240
Queen4,100-1,390
Clear ForkCLEARFORK6,497-3,787
Spraberry7,410-4,700
Jo Mill7,916-5,206
Spraberry7,916-5,206
Cisco——
Dean——
Grayburg——
Pennsylvanian——
Queen——
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H——
Santa Rosa——
Spraberry——
Wolfcamp——
Yates——

Perforations

Perforated and open-hole intervals.

FromToType
9,09618,925Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.751,73114.751,215 S
8.6256,2229.8751,000 S
5.518,9257.8752,240 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
00Jun 4, 2026Jan 7, 2026—
00Sep 4, 2025Aug 7, 2025Yes
00Jun 12, 2025Mar 24, 2025—
00Apr 19, 2024Feb 12, 2024—

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 →

Smith Jalonick 16-21 V42-317-44664

0.0 KM · Pbex Operations, LLC · Section with this well →

Santa Rosa9991,712
Yates2,504207
Queen4,099-1,388
San Andres4,176-1,465
Grayburg4,299-1,588
San Andres4,699-1,988
Clear Fork6,501-3,790
Spraberry6,504-3,793

12 TOPS · FIRST 8

Smith Jalonick 16-21 X42-317-44654

0.0 KM · Pbex Operations, LLC · Section with this well →

Santa Rosa1,742969
Yates2,504207
San Andres4,176-1,465
San Andres4,176-1,465
Clear Fork6,501-3,790
Spraberry7,408-4,697
Wolfcamp—
Queen—

12 TOPS · FIRST 8

Smith Jalonick 16-21 V42-317-44653

0.0 KM · Pbex Operations, LLC · Section with this well →

Santa Rosa1,742969
Yates2,503208
San Andres4,174-1,463
San Andres4,174-1,463
Clear Fork6,499-3,788
Spraberry7,410-4,699
Dean—
Cisco—

13 TOPS · FIRST 8

Blackjack 16-21 A42-317-46793

0.0 KM · Pbex Operations, LLC · Section with this well →

Clear Fork6,503-3,793
Spraberry7,407-4,697
Dean8,714-6,004
Wolfcamp8,923-6,213
Pennsylvanian—
Queen—
San Andres—
Santa Rosa—

11 TOPS · FIRST 8

Smith Jalonick 16-21 R42-317-44155

0.3 KM · Pbex Operations, LLC · Section with this well →

Santa Rosa1,0001,710
Yates2,69911
Queen4,100-1,390
Grayburg4,299-1,589
San Andres4,699-1,989
Clear Fork6,498-3,788
Spraberry7,403-4,693
Dean8,701-5,991

11 TOPS · FIRST 8

Smith Jalonick 16-21 S42-317-44160

0.3 KM · Pbex Operations, LLC · Section with this well →

Santa Rosa9991,712
Yates2,69912
Queen4,099-1,388
Grayburg4,299-1,588
San Andres4,699-1,988
Glorieta5,352-2,641
Spraberry5,352-2,641
Clear Fork6,494-3,783

12 TOPS · FIRST 8

Smith Jalonick 16-21 O42-317-44017

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

Santa Rosa1,742968
Cisco—
Dean—
Grayburg—
Pennsylvanian—
Queen—
San Andres—
Spraberry—

10 TOPS · FIRST 8

Smith Jalonick 16-21 N42-317-44015

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

Santa Rosa1,742968
Cisco—
Spraberry—
San Andres—
Queen—
Pennsylvanian—
Grayburg—
Dean—

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/31744665, documented in the API reference.