TEXAS · WELLS · MARTIN COUNTY · GUNSMOKE 40-1 H LEASE · API 42-317-43648 · DISTRICT 7B

Gunsmoke 40-1 H #8WB

Y

Martin County · Spraberry (Trend Area) field · Producing  · Horizontal

Gunsmoke 40-1 H #8WB (API 42-317-43648) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed May 3, 2022 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 22, 2021, permitted to 9,375 ft.

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

Its lease has reported 265K barrels of oil and 1.18M mcf of gas since August 2021, last reporting in July 2026.

Operator of record

Diamondback E&P LLC

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 permitDiamondback E&P LLCJun 22, 2021
9,375
total depth, ft
1
permits on file
Jun 22, 2021
last permit issued
May 3, 2022
completed
265K
cumulative oil, bbl
1.18M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2021 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 3, 2022
Shut in
—
Plugged
—

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

Surface location

32.278303, -101.928669

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Gunsmoke 40-1 H O-10-56477Spraberry (Trend Area)Diamondback E&P LLC1265K1.18MAug 2021 – Jul 2026

Gas, mcf lease total

Last 12 months 183,280 · prior 12 222,846(-18%)

020K40K60K202420252026

Oil, barrels lease total

Last 12 months 16,899 · prior 12 26,172(-35%)

02K4K6K202420252026

Chain of custody

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

  1. 1Diamondback E&P LLCMay 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
870580-99DrillDiamondback E&P LLCJun 17, 2021Jun 22, 2021Aug 31, 202110,530

Completions

CompletedLeaseFieldOperatorStatusDepth
May 3, 2022Gunsmoke 40-1 H O-10-56477Spraberry (Trend Area)Diamondback E&P LLCProducing9,375

Formation tops

As filed on W-2/G-1. Subsea from 2,811 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,575236
Seven Rivers2,73180
Grayburg3,625-814
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,059-1,248
Clear ForkCLEARFORK6,235-3,424
Spraberry7,504-4,693
Dean8,824-6,013
Wolfcamp9,030-6,219
Cisco——
Pennsylvanian——
Queen——
Santa Rosa——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
9,90220,270Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.751,98615.751,190 S
8.6258,83011780 S
5.520,3307.8753,035 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
00Sep 30, 2022Aug 15, 2022Yes
00Dec 20, 2021Dec 7, 2021Yes

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 neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Gunsmoke 40-1 F42-317-43647

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

Santa Rosa1,4051,406
Yates2,585226
Queen3,516-705
Grayburg3,641-830
San Andres4,323-1,512
Clear Fork6,250-3,439
Spraberry7,503-4,692
Dean—

10 TOPS · FIRST 8

Gunsmoke 40-1 G42-317-43649

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

Santa Rosa1,4051,406
Yates2,585226
Queen3,516-705
Grayburg3,641-830
San Andres4,323-1,512
Clear Fork6,250-3,439
Spraberry7,503-4,692
Dean8,818-6,007

11 TOPS · FIRST 8

Gunsmoke 40-1 I42-317-43646

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

Yates2,599212
Grayburg3,624-813
San Andres4,064-1,253
Clear Fork6,248-3,437
Spraberry7,523-4,712
Santa Rosa—
Wolfcamp—
Cisco—

10 TOPS · FIRST 8

Gunsmoke 40-1 J42-317-43645

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

Yates2,581231
Seven Rivers2,72884
Grayburg3,637-825
San Andres4,054-1,242
Clear Fork6,250-3,438
Spraberry7,509-4,697
Dean8,833-6,021
Wolfcamp9,040-6,228

10 TOPS · FIRST 8

Gunsmoke 40-1 I42-317-43644

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

Yates2,593219
Grayburg3,610-798
San Andres4,054-1,242
Clear Fork6,250-3,438
Spraberry7,508-4,696
Cisco—
Queen—
Dean—

10 TOPS · FIRST 8

Gunsmoke 40-1 K42-317-43643

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

Yates2,595217
Seven Rivers2,72983
Grayburg3,624-812
San Andres4,052-1,240
Clear Fork6,233-3,421
Spraberry7,511-4,699
Dean8,845-6,033
Wolfcamp9,049-6,237

12 TOPS · FIRST 8

Open Range 28-29 A42-317-45004

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

Yates2,576231
San Andres4,057-1,250
Clear Fork6,289-3,482
Spraberry7,526-4,719
JO Mills8,041-5,234
Wolfcamp—
Dean—
Grayburg—

10 TOPS · FIRST 8

Open Range 28-29 A42-317-45006

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

Yates2,590217
Grayburg3,599-792
San Andres4,061-1,254
Clear Fork6,261-3,454
Spraberry7,534-4,727
Dean8,848-6,041
Wolfcamp9,051-6,244
Santa Rosa—

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

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