WELL · 42-105-03009 · DISTRICT 7

Shannon Estate -B- #13

Y

Crockett County · Shannon (San Andres) field · Injection  · Vertical

Shannon Estate -B- #13 (API 42-105-03009) is a well in Crockett County operated by Clark Oil CO., completed August 20, 2012 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued September 25, 2012, permitted to 2,180 ft.

It was permitted by Sundown Energy LP and has since transferred to Clark Oil CO. on the wellbore schedule.

Completion filings report one formation top, including San Andres.

Its lease has reported 945K barrels of oil and 22 mcf of gas since January 1993, last reporting in July 2026. The lease carries 57 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 132K barrels injected in the 12 months reported through July 2025.

Operator of record

Clark Oil Co.

Permitted by Sundown Energy LP; the EWA schedule now lists a different operator.

Dallas, TX · P-5 Y, filed Jul 4, 2026 · (432) 290-4220

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleClark Oil Co.
Production reportsClark Oil Co.through Apr 2026
Latest permitSundown Energy LPSep 25, 2012

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

2,180
total depth, ft
1
permits on file
Sep 25, 2012
last permit issued
Aug 20, 2012
completed
945K
cumulative oil, bbl
22
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 20, 2012
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; they carry 57 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Shannon Estate -B- O-9-1277Shannon (San Andres)Clark Oil Co.57945K22Jan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 20,735 · prior 12 25,630(-19%)

01K2K3K202420252026

Chain of custody

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

  1. 1Energy Production CorporationJan 1993 → Nov 2002
  2. 2Zephyr Lone Star Oper Co.,l.l.c.Dec 2002 → Dec 2002
  3. 3Sundown Energy, Inc.Jan 2003 → Jan 2005
  4. 4Sundown Energy LPFeb 2005 → Jun 2017
  5. 5Clark Oil Co.Jul 2017 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
748387-99RecompletionSundown Energy LPSep 17, 2012Sep 25, 2012Jun 22, 20122,180

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-1277————

Formation tops

As filed on W-2/G-1. Subsea from 2,392 ft elevation.Download CSV →

FormationMD ftSubsea
San Andres2,100292

Perforations

Perforated and open-hole intervals.

FromToType
1,9382,056Perforated
2,1002,106Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.7557212.25250 S
10.7557212.5250 S
71,9387.875100 S
71,9388100 S
3.52,020——
4.52,1796.125350 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
00Nov 7, 2013Oct 2, 2012Yes
00Jan 12, 1984Mar 11, 1983Yes

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

132K
bbl, last 12 reported months
1.4M
bbl, all reported
Jul 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000093266H-1 InjectionActive2,9419691,938–2,156

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 132,273 · prior 12 133,328(-1%)

05K10K15K20242025

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/10503009, documented in the API reference.