WELL · 42-283-32313 · DISTRICT 1

Cox #1H

Y

LA Salle County · Eagleville (Eagle Ford-1) field · Producing  · Horizontal

Cox #1H (API 42-283-32313) is a horizontal well in La Salle County operated by Silver Hill Energy Operating LLC, completed January 15, 2011 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued July 22, 2010, permitted to 8,500 ft.

It was permitted by Riley Exploration, LLC and has since transferred to Silver Hill Energy Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Anacacho, Austin Chalk, Eagle Ford.

Its lease has reported 112K barrels of oil and 355K mcf of gas since January 2011, last reporting in July 2026.

Operator of record

Silver Hill Energy Operating LLC

Permitted by Riley Exploration, LLC; the EWA schedule now lists a different operator.

Dallas, TX · P-5 Y, filed Jan 5, 2026 · 215 permits on file · (214) 613-3744

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSilver Hill Energy Operating LLC
Production reportsSilver Hill Energy Operating LLCthrough Apr 2026
Latest permitRiley Exploration, LLCJul 22, 2010

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

8,500
total depth, ft
2
permits on file
Jul 22, 2010
last permit issued
Jan 15, 2011
completed
112K
cumulative oil, bbl
355K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 15, 2011
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cox O-1-15496Eagleville (Eagle Ford-1)Silver Hill Energy Operating LLC1112K355KJan 2011 – Jul 2026

Oil, barrels lease total

Last 12 months 1,428 · prior 12 1,022(+40%)

0100200300202420252026

Chain of custody

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

  1. 1Riley Exploration, LLCJan 2011 → Jun 2013
  2. 21776 Energy Operators, LLCJul 2013 → Oct 2025
  3. 3Silver Hill Energy Operating LLCNov 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
699326-98DrillRiley Exploration, LLCNov 29, 2011Jul 22, 2010Aug 1, 20108,500
699326-99DrillRiley Exploration, LLCJul 20, 2010Jul 22, 2010Aug 1, 20108,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-15496————

Formation tops

As filed on W-2/G-1. Subsea from 437 ft elevation.Download CSV →

FormationMD ftSubsea
AnacachoTOP ANACACHO/ PECAN GAP7,168-6,731
AnacachoTOP ANACACHO/PECAN GAP7,168-6,731
Austin ChalkTOP AUSTIN CHALK7,438-7,001
Eagle FordTOP UPPER EAGLE FORD7,819-7,382
Eagle FordTOP EAGLE FORD PAY7,891-7,454

Perforations

Perforated and open-hole intervals.

FromToType
8,34512,409Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6252,56412.25840 S
5.512,7518.51,965 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 3, 2026May 14, 2026—
00Dec 27, 2011Mar 4, 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/28332313, documented in the API reference.