WELL · 42-173-38164 · DISTRICT 8

Silverback 33 #1

Y

Glasscock County · Spraberry (Trend Area) field · Producing  · Vertical

Silverback 33 #1 (API 42-173-38164) is a well in Glasscock County operated by Oxyrock Operating LLC, completed October 4, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued May 30, 2019, permitted to 12,000 ft.

It was permitted by Crownquest Operating, LLC and has since transferred to Oxyrock Operating LLC on the wellbore schedule.

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

Its lease has reported 65.3K barrels of oil and 345K mcf of gas since October 2019, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Oxyrock Operating LLC

Permitted by Crownquest Operating, LLC; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Apr 22, 2026
Permits on file
392
Phone
(713) 215-7000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOxyrock Operating LLC
Production reportsOxyrock Operating, LLCthrough Apr 2026
Latest permitCrownquest Operating, LLCMay 30, 2019

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

12,000
total depth, ft
1
permits on file
May 30, 2019
last permit issued
Oct 4, 2019
completed
65.3K
cumulative oil, bbl
345K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 4, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

Surface location

31.865631, -101.739221

Google Maps ↗

Permit surface location from the RRC GIS record, in Glasscock 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
Silverback 33 O-10-53687Spraberry (Trend Area)Oxyrock Operating, LLC265.3K345KOct 2019 – Jul 2026

Gas, mcf lease total

Last 12 months 39,069 · prior 12 46,196(-15%)

05K10K15K202420252026

Oil, barrels lease total

Last 12 months 3,206 · prior 12 5,165(-38%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Crownquest Operating, LLCOct 2019 → Jul 2024
  2. 2Oxyrock Operating, LLCAug 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
853555-99DrillCrownquest Operating, LLCMay 28, 2019May 30, 2019Aug 20, 201912,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-53687————

Formation tops

As filed on W-2/G-1. Subsea from 2,625 ft elevation.Download CSV →

FormationMD ftSubsea
Santa Rosa8241,801
Yates2,219406
Grayburg3,833-1,208
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO4,273-1,648
Glorieta4,656-2,031
Clear ForkCLEARFORK5,758-3,133
Spraberry6,901-4,276
Queen——
Seven Rivers——
Wichita-AlbanyWICHITA ALBANY——

Perforations

Perforated and open-hole intervals.

FromToType
8,45611,104Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37535017.5375 S
8.6254,710111,200 S
5.511,1977.8751,400 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, 2020Feb 28, 2020Yes

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). 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 →

Colt 2842-173-37901

0.3 KM · Crownquest Operating, LLC · Section with this well →

Yates2,213389
Grayburg3,833-1,231
San Andres4,262-1,660
Glorieta4,680-2,078
Clear Fork5,727-3,125
Spraberry6,902-4,300
Santa Rosa—
Queen—

10 TOPS · FIRST 8

Silverback 3342-173-38298

0.6 KM · Crownquest Operating, LLC · Section with this well →

Santa Rosa7831,805
Yates2,183405
Grayburg3,803-1,215
San Andres4,251-1,663
Glorieta4,627-2,039
Clear Fork5,736-3,148
Spraberry6,893-4,305
Queen—

10 TOPS · FIRST 8

Wrage 3342-173-37676

0.8 KM · Crownquest Operating, LLC · Section with this well →

Santa Rosa7791,803
Queen3,181-599
Grayburg3,771-1,189
San Andres4,241-1,659
Glorieta4,633-2,051
Clear Fork5,750-3,168
Spraberry6,908-4,326
Yates—

10 TOPS · FIRST 8

Savage 3342-173-37813

0.9 KM · Crownquest Operating, LLC · Section with this well →

Santa Rosa7911,818
Yates2,200409
Seven Rivers2,471138
Queen3,191-582
Grayburg3,796-1,187
San Andres4,258-1,649
Glorieta4,642-2,033
Clear Fork5,700-3,091

11 TOPS · FIRST 8

Colt 2842-173-38297

0.9 KM · Crownquest Operating, LLC · Section with this well →

Santa Rosa8091,793
Yates2,209393
Grayburg3,836-1,234
San Andres4,272-1,670
Glorieta4,718-2,116
Clear Fork5,845-3,243
Spraberry6,933-4,331
Queen—

10 TOPS · FIRST 8

Colt 4542-173-38060

1.2 KM · Crownquest Operating, LLC · Section with this well →

Yates2,124485
Grayburg3,695-1,086
San Andres4,175-1,566
Glorieta4,675-2,066
Clear Fork5,682-3,073
Spraberry7,393-4,784
Santa Rosa—
Queen—

10 TOPS · FIRST 8

Wrage 2842-173-37678

1.2 KM · Crownquest Operating, LLC · Section with this well →

Yates2,150452
Grayburg3,896-1,294
San Andres4,284-1,682
San Andres4,284-1,682
Glorieta4,676-2,074
Clear Fork5,778-3,176
Spraberry6,920-4,318
Wolfcamp8,432-5,830

14 TOPS · FIRST 8

Colt 4542-173-37832

1.2 KM · Crownquest Operating, LLC · Section with this well →

Yates2,124485
Grayburg3,695-1,086
San Andres4,175-1,566
Glorieta4,675-2,066
Clear Fork5,682-3,073
Spraberry7,393-4,784
Queen—
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

Developers: this page as JSON is GET /v1/data/wells/17338164, documented in the API reference.