WELL · 42-227-39936 · DISTRICT 8

Sycamore G #12LS

Y

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

Sycamore G #12LS (API 42-227-39936) is a horizontal well in Howard County operated by Oxyrock Operating LLC, completed September 24, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 21, 2018, permitted to 10,000 ft.

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

Completion filings report 9 formation tops, including Yates, San Andres, Glorieta, Clear Fork.

Its lease has reported 218K barrels of oil and 930K mcf of gas since September 2019, last reporting in July 2026.

Operator of record

Oxyrock Operating LLC

Permitted by Crownquest Operating, LLC; 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 permitCrownquest Operating, LLCDec 21, 2018

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

10,000
total depth, ft
1
permits on file
Dec 21, 2018
last permit issued
Sep 24, 2019
completed
218K
cumulative oil, bbl
930K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 24, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.348766, -101.669038

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Howard 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
Sycamore G O-10-53639Spraberry (Trend Area)Oxyrock Operating, LLC1218K930KSep 2019 – Jul 2026

Gas, mcf lease total

Last 12 months 81,489 · prior 12 62,364(+31%)

010K20K30K202420252026

Oil, barrels lease total

Last 12 months 5,628 · prior 12 8,552(-34%)

05001K1.5K202420252026

Chain of custody

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

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

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
848062-99DrillCrownquest Operating, LLCDec 19, 2018Dec 21, 2018Jan 22, 201910,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-53639————

Formation tops

As filed on W-2/G-1. Subsea from 2,554 ft elevation.Download CSV →

FormationMD ftSubsea
Yates1,952602
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO3,478-924
Glorieta4,340-1,786
Clear ForkCLEARFORK - SEVERE WATER FLOWS4,886-2,332
Spraberry6,649-4,095
SpraberryLOWER SPRABERRY7,140-4,586
Coleman Junction——
Dean——
Leonard——
Seven Rivers——

Perforations

Perforated and open-hole intervals.

FromToType
8,54516,018Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,13517.5875 S
9.6257,86712.25565 S
5.516,1578.51,495 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
00May 29, 2020Nov 22, 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). 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 →

Sycamore F42-227-39941

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

San Andres3,472-920
Glorieta4,341-1,789
Clear Fork4,885-2,333
Spraberry6,640-4,088
Dean7,888-5,336
Wolfcamp8,080-5,528
Coleman Junction—
Yates—

10 TOPS · FIRST 8

Sycamore D42-227-39916

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

Yates1,947605
San Andres3,475-923
Glorieta4,331-1,779
Clear Fork4,882-2,330
Spraberry6,651-4,099
Dean7,912-5,360
Wolfcamp8,074-5,522
Seven Rivers—

10 TOPS · FIRST 8

Sycamore D42-227-39915

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

Yates1,947604
San Andres3,491-940
Glorieta4,331-1,780
Clear Fork4,883-2,332
Spraberry6,641-4,090
Dean7,906-5,355
Wolfcamp8,088-5,537
Coleman Junction—

10 TOPS · FIRST 8

Sycamore E42-227-39935

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

Yates1,990575
San Andres3,510-945
Glorieta4,357-1,792
Clear Fork4,908-2,343
Spraberry6,643-4,078
Spraberry7,127-4,562
Coleman Junction—
Seven Rivers—

10 TOPS · FIRST 8

Sycamore E42-227-39872

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

Yates1,980583
San Andres3,502-939
Glorieta4,359-1,796
Clear Fork4,905-2,342
Spraberry6,650-4,087
Dean7,888-5,325
Wolfcamp8,123-5,560
Seven Rivers—

10 TOPS · FIRST 8

Sycamore E42-227-39865

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

Yates1,980571
San Andres3,504-953
Glorieta4,360-1,809
Clear Fork4,909-2,358
Spraberry6,651-4,100
Dean7,924-5,373
Wolfcamp8,132-5,581
Coleman Junction—

10 TOPS · FIRST 8

Sycamore E42-227-39863

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

Yates1,966597
San Andres3,504-941
Glorieta4,362-1,799
Clear Fork4,920-2,357
Spraberry6,659-4,096
Dean7,937-5,374
Wolfcamp8,128-5,565
Coleman Junction—

10 TOPS · FIRST 8

Sycamore42-227-39871

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

Yates1,992582
San Andres3,548-974
Glorieta4,420-1,846
Clear Fork4,938-2,364
Spraberry6,680-4,106
Dean7,950-5,376
Wolfcamp8,142-5,568
Seven Rivers—

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/22739936, documented in the API reference.