WELL · 42-317-41598 · DISTRICT 8

Fortress B2 #07BU

Y

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

Fortress B2 #07BU (API 42-317-41598) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed May 9, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued July 12, 2018, permitted to 9,714 ft.

It was permitted by Qep Energy Company and has since transferred to Diamondback E&P LLC on the wellbore schedule.

Completion filings report 10 formation tops, including Santa Rosa, Yates, Queen, Grayburg.

Its lease has reported 234K barrels of oil and 930K mcf of gas since May 2019, last reporting in July 2026.

Operator of record

Diamondback E&P LLC

Permitted by QEP Energy Company; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 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 permitQEP Energy CompanyJul 12, 2018

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

9,714
total depth, ft
2
permits on file
Jul 12, 2018
last permit issued
May 9, 2019
completed
234K
cumulative oil, bbl
930K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 9, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.351864, -101.968532

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Fortress B2 O-10-52385Spraberry (Trend Area)Diamondback E&P LLC1234K930KMay 2019 – Jul 2026

Gas, mcf lease total

Last 12 months 74,977 · prior 12 31,071(+141%)

05K10K15K202420252026

Oil, barrels lease total

Last 12 months 5,911 · prior 12 6,116(-3%)

05001K1.5K202420252026

Chain of custody

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

  1. 1QEP Energy CompanyMay 2019 → Sep 2021
  2. 2Diamondback E&P LLCOct 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
842263-98DrillQEP Energy CompanyJul 29, 2019Jul 12, 2018Aug 13, 20189,714
842263-99DrillQEP Energy CompanyJul 11, 2018Jul 12, 2018Aug 13, 20189,714

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-52385————

Formation tops

As filed on W-2/G-1. Subsea from 2,835 ft elevation.Download CSV →

FormationMD ftSubsea
Santa Rosa1,3381,497
Yates2,675160
Queen3,607-772
Grayburg4,259-1,424
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,403-1,568
Spraberry7,689-4,854
Dean8,987-6,152
Wolfcamp9,261-6,426
Cisco——
Pennsylvanian——

Perforations

Perforated and open-hole intervals.

FromToType
9,73420,017Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,86317.52,050 S
9.6258,85712.251,490 S
5.520,1178.752,620 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
00Nov 4, 2019Aug 14, 2019Yes

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 →

Fortress B442-317-41601

0.0 KM · QEP Energy Company · Section with this well →

Santa Rosa1,3381,497
Yates2,675160
Queen3,607-772
Grayburg4,259-1,424
San Andres4,403-1,568
Spraberry7,680-4,845
Dean8,984-6,149
Wolfcamp9,252-6,417

10 TOPS · FIRST 8

Fortress B342-317-41600

0.0 KM · QEP Energy Company · Section with this well →

Santa Rosa1,3381,497
Yates2,675160
Queen3,607-772
Grayburg4,259-1,424
San Andres4,403-1,568
Spraberry7,684-4,849
Dean—
Wolfcamp—

10 TOPS · FIRST 8

Fortress C142-317-41602

0.0 KM · QEP Energy Company · Section with this well →

Santa Rosa1,3381,498
Yates2,675161
Queen3,607-771
Grayburg4,259-1,423
San Andres4,403-1,567
Spraberry7,681-4,845
Dean8,990-6,154
Wolfcamp—

10 TOPS · FIRST 8

Kingsfield C42-317-41108

0.1 KM · QEP Energy Company · Section with this well →

Santa Rosa1,3381,496
Yates2,675159
Queen3,607-773
Grayburg4,259-1,425
San Andres4,403-1,569
Spraberry7,652-4,818
Cisco—
Dean—

10 TOPS · FIRST 8

Kingsfield B42-317-41104

0.1 KM · QEP Energy Company · Section with this well →

Santa Rosa1,3381,497
Yates2,675160
Queen3,607-772
Grayburg4,259-1,424
San Andres4,403-1,568
Spraberry7,657-4,822
Dean8,993-6,158
Wolfcamp—

10 TOPS · FIRST 8

Kingsfield C42-317-41107

0.1 KM · QEP Energy Company · Section with this well →

Santa Rosa1,3381,496
Yates2,675159
Queen3,607-773
Grayburg4,259-1,425
San Andres4,403-1,569
Spraberry7,660-4,826
Dean8,978-6,144
Wolfcamp9,251-6,417

10 TOPS · FIRST 8

Kingsfield B42-317-41105

0.1 KM · QEP Energy Company · Section with this well →

Queen3,607-773
Grayburg4,259-1,425
San Andres4,403-1,569
Spraberry7,659-4,825
Dean8,993-6,159
Strawn—
Pennsylvanian—
Mississippian—

10 TOPS · FIRST 8

Kingsfield D42-317-41141

0.1 KM · QEP Energy Company · Section with this well →

Santa Rosa1,3381,496
Yates2,675159
Queen3,607-773
Grayburg4,259-1,425
San Andres4,403-1,569
Spraberry7,668-4,834
Dean9,001-6,167
Pennsylvanian—

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/31741598, documented in the API reference.