WELL · 42-227-36637 · DISTRICT 8

Guitar 19 #1

Y

Howard County · Spraberry (Trend Area) field · Shut IN  · Vertical

Guitar 19 #1 (API 42-227-36637) is a well in Howard County operated by Oxyrock Operating LLC, completed September 23, 2011 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued April 7, 2011, permitted to 11,000 ft.

It was permitted by Midland Oil And Gas, Inc. and has since transferred to Oxyrock Operating LLC on the wellbore schedule.

Completion filings report 5 formation tops, including Spraberry, Leonard, Dean, Wolfcamp.

Its lease has reported 147K barrels of oil and 595K mcf of gas since September 2011, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Oxyrock Operating LLC

Permitted by Midland Oil and Gas, Inc.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Mar 4, 2026 · 392 permits on file · (713) 215-7000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOxyrock Operating LLC
Production reportsOxyrock Operating, LLCthrough Apr 2026
Latest permitMidland Oil and Gas, Inc.Apr 7, 2011

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

11,000
total depth, ft
2
permits on file
Apr 7, 2011
last permit issued
Sep 23, 2011
completed
147K
cumulative oil, bbl
595K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 23, 2011
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Guitar 19 O-10-42037Spraberry (Trend Area)Oxyrock Operating, LLC4147K595KSep 2011 – Jul 2026

Gas, mcf lease total

Last 12 months 12,945 · prior 12 20,243(-36%)

02K4K202420252026

Oil, barrels lease total

Last 12 months 846 · prior 12 1,566(-46%)

05001K202420252026

Chain of custody

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

  1. 1Midland Oil and Gas, Inc.Oct 2011 → Jul 2015
  2. 2Qstar Operating LLCAug 2015 → Dec 2016
  3. 3SM Energy CompanyJan 2017 → Jun 2017
  4. 4Crownquest Operating, LLCJul 2017 → Jul 2024
  5. 5Oxyrock Operating, LLCAug 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
713429-98DrillMidland Oil and Gas, Inc.Jul 20, 2011Apr 7, 2011Jul 29, 201111,000
713429-99DrillMidland Oil and Gas, Inc.Apr 1, 2011Apr 7, 2011—11,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-42037————

Formation tops

As filed on W-2/G-1. Subsea from 2,580 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryUPPER SPRABERRY6,293-3,713
SpraberryLOWER SPRABERRY6,939-4,359
Leonard7,600-5,020
Dean7,972-5,392
WolfcampLOWER WOLFCAMP8,380-5,800
Cline8,860-6,280

Perforations

Perforated and open-hole intervals.

FromToType
7,6028,717Perforated
8,78910,130Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37524417.5270 S
8.6253,529111,250 S
5.510,1507.875680 S
5.5—7.875830 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
00Dec 7, 2012Oct 12, 2011Yes

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.

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/22736637, documented in the API reference.