WELL · 42-235-36025 · DISTRICT 7

Rock Hollow #1645UB

N

Irion County  · Horizontal

Rock Hollow #1645UB (API 42-235-36025) is a permitted horizontal well in Irion County filed by Discovery Natural Resources LLC; no completion report is on file yet.

The RRC has issued 2 drilling permits (amended once) between 2014 and 2022, permitted to 7,800 ft.

Completion filings report 7 formation tops, including Grayburg, San Andres, Clear Fork, Spraberry.

Its lease has reported 3.04M barrels of oil and 35.2M mcf of gas since September 2011, last reporting in July 2026. The lease carries 60 wells, so these are lease totals, not this well alone.

Operator of record

Discovery Natural Resources LLC

Based in
Denver, CO
P-5 status
Active (A)
P-5 last filed
Jan 12, 2026
Permits on file
451
Phone
(303) 893-5073

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsDiscovery Natural Resources LLCthrough Apr 2026
Latest permitDiscovery Natural Resources LLCMay 5, 2022
7,800
total depth, ft
3
permits on file
May 5, 2022
last permit issued
—
completed
3.04M
cumulative oil, bbl
35.2M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

Surface location

31.223417, -101.238417

Google Maps ↗

Permit surface location from the RRC GIS record, in Irion 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 60 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Rock Hollow O-9-17647Spraberry (Trend Area)Discovery Natural Resources LLC603.04M35.2MSep 2011 – Jul 2026

Gas, mcf lease total

Last 12 months 2,840,796 · prior 12 2,948,244(-4%)

0200K400K202420252026

Oil, barrels lease total

Last 12 months 89,194 · prior 12 121,605(-27%)

010K20K30K202420252026

Chain of custody

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

  1. 1Fiml Natural Resources, LLCSep 2011 → Aug 2014
  2. 2Discovery Natural Resources LLCSep 2014 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
879568-99DrillDiscovery Natural Resources LLCApr 28, 2022May 5, 2022Jun 1, 20227,800
801219-98DrillDiscovery Natural Resources LLCSep 3, 2015Dec 23, 2014—7,800
801219-99DrillDiscovery Natural Resources LLCDec 4, 2014Dec 23, 2014—7,800

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-17647————

Formation tops

As filed on W-2/G-1. Subsea from 2,606 ft elevation.Download CSV →

FormationMD ftSubsea
Grayburg1,674932
San Andres2,036570
Clear ForkCLEARFORK4,124-1,518
Spraberry5,050-2,444
Canyon——
Fusselman——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
7,22415,131Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37577017.5675 S
76,0528.75585 S
4.515,1486.125770 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
00Jan 30, 2023Jan 11, 2023Yes

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 →

Rock Hollow42-235-36027

0.0 KM · Discovery Natural Resources LLC · Section with this well →

Grayburg1,688918
San Andres2,045561
Clear Fork4,116-1,510
Spraberry5,017-2,411
Wolfcamp—
Canyon—
Fusselman—

Rock Hollow42-235-36029

0.0 KM · Discovery Natural Resources LLC · Section with this well →

Grayburg1,757847
San Andres2,126478
Clear Fork4,136-1,532
Spraberry5,066-2,462
Wolfcamp—
Canyon—
Fusselman—

Rock Hollow42-235-36024

0.0 KM · Discovery Natural Resources LLC · Section with this well →

Grayburg1,764841
San Andres2,130475
Clear Fork4,301-1,696
Spraberry5,069-2,464
Wolfcamp—
Fusselman—
Canyon—

Woods 213-216 Alloc 0642-235-36299

2.3 KM · Sable Permian Resources Land,llc · Section with this well →

Grayburg1,761932
San Andres1,961732
Clear Fork3,221-528
Spraberry5,071-2,378
Jo Mill5,922-3,229
Wolfcamp6,552-3,859
Canyon—
Fusselman—

Woods 213-216 Alloc 0542-235-36298

2.3 KM · Sable Permian Resources Land,llc · Section with this well →

Grayburg1,826868
San Andres2,026668
Clear Fork3,753-1,059
Spraberry5,603-2,909
Jo Mill5,923-3,229
Dean6,419-3,725
Wolfcamp6,553-3,859
Fusselman—

9 TOPS · FIRST 8

Woods 213-216 Alloc 0742-235-36300

2.3 KM · Sable Permian Resources, LLC · Section with this well →

Grayburg1,827866
San Andres1,993700
Clear Fork3,223-530
Spraberry5,073-2,380
Jo Mill5,923-3,230
Dean6,413-3,720
Wolfcamp6,553-3,860
Fusselman—

9 TOPS · FIRST 8

Woods 213-216 Alloc 0442-235-36358

2.3 KM · Sable Permian Resources Land,llc · Section with this well →

Wolfcamp—
Canyon—
Clear Fork—
Fusselman—
Grayburg—
San Andres—
Spraberry—

Woods 213-216 Alloc 0842-235-36301

2.3 KM · Sable Permian Resources Land,llc · Section with this well →

Grayburg1,829864
San Andres2,029664
Clear Fork3,216-523
Spraberry5,066-2,373
Jo Mill5,924-3,231
Dean6,418-3,725
Wolfcamp6,556-3,863
Fusselman—

9 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/23536025, documented in the API reference.