WELL · 42-317-46863 · DISTRICT 8

Heidelberg 30-31 K #5WA

Y

Martin County · Spraberry (Trend Area) field · Shut IN  · Horizontal

Heidelberg 30-31 K #5WA (API 42-317-46863) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed January 31, 2026 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued July 17, 2025, permitted to 12,500 ft.

Completion filings report 12 formation tops, including Yates, Seven Rivers, Queen, Grayburg.

Its lease has reported 155K barrels of oil and 188K mcf of gas since July 2025, 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

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 LLCJul 17, 2025
12,500
total depth, ft
2
permits on file
Jul 17, 2025
last permit issued
Jan 31, 2026
completed
155K
cumulative oil, bbl
188K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2025 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 31, 2026
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.233368, -101.796721

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
Heidelberg 30-31 K O-10-64396Spraberry (Trend Area)Diamondback E&P LLC2155K188KJul 2025 – Jul 2026

Oil, barrels lease total

Last 12 months 155,256 · prior 12 0

020K40K60K202420252026

Gas, mcf lease total

Last 12 months 188,420 · prior 12 0

050K100K202420252026

Chain of custody

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

  1. 1Diamondback E&P LLCJan 2026 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
908662-98DrillDiamondback E&P LLCJul 31, 2025Jul 17, 2025Aug 2, 202512,500
908662-99DrillDiamondback E&P LLCJun 17, 2025Jul 17, 2025Aug 1, 202512,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-64396————

Formation tops

As filed on W-2/G-1. Subsea from 2,653 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,281372
Seven Rivers2,483170
Queen3,148-495
Grayburg3,694-1,041
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H3,992-1,339
Glorieta4,685-2,032
Clear ForkCLEARFORK5,715-3,062
Spraberry6,996-4,343
Dean8,329-5,676
Wolfcamp8,513-5,860
Cisco——
Santa Rosa——

Perforations

Perforated and open-hole intervals.

FromToType
8,96319,007Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.7553414.75405 S
8.6255,5509.875570 S
5.519,0457.8751,890 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, 2026Apr 22, 2026—
00Jan 28, 2026Dec 23, 2025Yes

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 →

Heidelberg 30-31 L42-317-46864

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

Yates2,267386
Seven Rivers2,476177
Queen2,476177
Grayburg3,694-1,041
San Andres3,997-1,344
Glorieta4,685-2,032
Clear Fork5,706-3,053
Spraberry7,003-4,350

12 TOPS · FIRST 8

Heidelberg 30-31 J42-317-46862

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

Yates2,266387
Seven Rivers2,473180
Queen3,139-486
Grayburg3,688-1,035
San Andres4,010-1,357
Glorieta4,678-2,025
Clear Fork5,706-3,053
Spraberry6,991-4,338

12 TOPS · FIRST 8

Heidelberg 30-31 I42-317-46850

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

Yates2,269384
Seven Rivers2,477176
Queen3,138-485
Grayburg3,689-1,036
San Andres4,018-1,365
Glorieta4,680-2,027
Clear Fork5,709-3,056
Spraberry7,003-4,350

15 TOPS · FIRST 8

Heidelberg 30-31 J42-317-46849

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

Yates2,271383
Seven Rivers2,474180
Queen3,142-488
Grayburg3,693-1,039
San Andres3,988-1,334
Glorieta4,752-2,098
Clear Fork5,714-3,060
Spraberry7,001-4,347

12 TOPS · FIRST 8

Heidelberg 30-31 I42-317-46861

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

Yates2,273381
Queen3,133-479
Grayburg3,687-1,033
San Andres4,020-1,366
Spraberry7,000-4,346
Dean—
Pennsylvanian—
Santa Rosa—

11 TOPS · FIRST 8

Heidelberg 30-31 K42-317-46851

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

Clear Fork5,711-3,054
Spraberry6,993-4,336
Jo Mill7,497-4,840
Queen—
Pennsylvanian—
Grayburg—
Dean—
Cisco—

12 TOPS · FIRST 8

Heidelberg 30-31 L42-317-46852

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

Clear Fork5,708-3,051
Spraberry7,001-4,344
Jo Mill7,501-4,844
Santa Rosa—
San Andres—
Queen—
Dean—
Yates—

10 TOPS · FIRST 8

Heidelberg 30-31 M42-317-46865

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

Clear Fork5,708-3,051
Spraberry6,997-4,340
Jo Mill7,497-4,840
Yates—
Dean—
Grayburg—
Queen—
San Andres—

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/31746863, documented in the API reference.