WELL · 42-383-39890 · DISTRICT 7

Eaglehead C A2 #12LH

Y

Reagan County · Lin (Wolfcamp) field · Producing  · Horizontal

Eaglehead C A2 #12LH (API 42-383-39890) is a horizontal well in Reagan County operated by Sem Operating Company LLC, completed January 17, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued May 30, 2017, permitted to 9,200 ft.

It was permitted by Callon Petroleum Operating CO and has since transferred to Sem Operating Company LLC on the wellbore schedule.

Completion filings report 13 formation tops, including Yates, Seven Rivers, Queen, Grayburg.

Its lease has reported 364K barrels of oil and 1.21M mcf of gas since January 2018, last reporting in July 2026.

Operator of record

Sem Operating Company LLC

Permitted by Callon Petroleum Operating Co; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Apr 4, 2026 · 404 permits on file · (877) 447-2289

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSem Operating Company LLC
Production reportsSem Operating Company LLCthrough Apr 2026
Latest permitCallon Petroleum Operating CoMay 30, 2017

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

9,200
total depth, ft
2
permits on file
May 30, 2017
last permit issued
Jan 17, 2018
completed
364K
cumulative oil, bbl
1.21M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 17, 2018
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

31.380215, -101.719394

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Reagan 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
Eaglehead 'C' A2 O-9-19867Lin (Wolfcamp)Sem Operating Company LLC1364K1.21MJan 2018 – Jul 2026

Gas, mcf lease total

Last 12 months 89,239 · prior 12 83,466(+7%)

05K10K15K202420252026

Oil, barrels lease total

Last 12 months 8,755 · prior 12 10,435(-16%)

01K2K202420252026

Chain of custody

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

  1. 1Callon Petroleum Operating CoJan 2018 → May 2019
  2. 2Sem Operating Company LLCJun 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
826621-98DrillCallon Petroleum Operating CoJun 22, 2017May 30, 2017Aug 9, 20179,200
826621-99DrillCallon Petroleum Operating CoMay 12, 2017May 30, 2017Aug 9, 20179,200

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-19867————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Yates2,045
Seven Rivers2,280
Queen2,920
Grayburg3,360
San AndresSAN ANDRES - SALTWATER FLOW, POS3,545
GlorietaGLORIETTA4,070
Clear ForkCLEARFORK5,645
Spraberry6,480
Dean7,875
Wolfcamp8,045
Ellenburger—
Fusselman—
Strawn—

Perforations

Perforated and open-hole intervals.

FromToType
9,36116,615Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37550617.5450 S
9.6258,14912.251,178 S
5.516,6698.52,966 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
00Jul 10, 2018Jun 5, 2018Yes
00May 7, 2018Apr 3, 2018Yes

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 →

Eaglehead C A342-383-39895

0.0 KM · Callon Petroleum Operating Co · Section with this well →

Yates2,045
Seven Rivers2,280
Queen2,920
Grayburg3,360
San Andres3,545
Clear Fork5,645
Spraberry6,480
Dean7,875

12 TOPS · FIRST 8

Eaglehead 'C' A142-383-39888

0.0 KM · Callon Petroleum Operating Co · Section with this well →

Yates2,045
Seven Rivers2,280
Queen2,920
Grayburg3,360
San Andres3,545
Glorieta4,070
Clear Fork5,645
Spraberry6,480

10 TOPS · FIRST 8

West Hartgrove Unit 142-383-41015

0.5 KM · Earthstone Operating, LLC · Section with this well →

Queen2,898-247
Grayburg3,340-689
San Andres3,562-911
Clear Fork5,582-2,931
Spraberry6,482-3,831
Wolfcamp8,057-5,406
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

West Hartgrove Unit 142-383-41014

0.5 KM · Earthstone Operating, LLC · Section with this well →

Queen2,898-247
Grayburg3,346-695
San Andres3,546-895
Clear Fork5,580-2,929
Spraberry6,485-3,834
Wolfcamp8,055-5,404
Strawn—
Ellenburger—

9 TOPS · FIRST 8

West Hartgrove Unit 142-383-41017

0.5 KM · Earthstone Operating, LLC · Section with this well →

Queen2,893-243
Grayburg3,334-684
San Andres3,549-899
Clear Fork5,577-2,927
Spraberry6,484-3,834
Wolfcamp8,053-5,403
Fusselman—
Strawn—

9 TOPS · FIRST 8

West Hartgrove Unit 142-383-41016

0.5 KM · Earthstone Operating, LLC · Section with this well →

Grayburg2,987-337
Queen3,328-678
San Andres3,540-890
Clear Fork5,570-2,920
Spraberry6,482-3,832
Wolfcamp8,052-5,402
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

West Hartgrove 142-383-40117

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

Grayburg2,780-134
Queen3,295-649
San Andres3,555-909
Clear Fork5,590-2,944
Spraberry6,478-3,832
Wolfcamp8,057-5,411
Strawn—
Ellenburger—

9 TOPS · FIRST 8

West Hartgrove 142-383-40116

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

Grayburg2,780-132
Queen3,295-647
San Andres3,555-907
Clear Fork5,590-2,942
Spraberry6,478-3,830
Wolfcamp8,057-5,409
Fusselman—
Ellenburger—

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

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