WELL · 42-355-00119 · DISTRICT 4

Estell Mary King #321

N

Nueces County · Richard King field  · Vertical

Estell Mary King #321 (API 42-355-00119) is a permitted well in Nueces County filed by Synergy Oil & Gas, Inc. (A); no completion report is on file yet.

The RRC has issued one drilling permit, issued September 12, 1997, permitted to 6,363 ft.

It was permitted by Synergy Oil & Gas, Inc. (A) and has since transferred to Durango Resources Corp. on the wellbore schedule.

Its 3 leases have reported 918 barrels of oil and 41.9K mcf of gas since January 1993, last reporting in July 2026. The leases carry 6 wells, so these are lease totals, not this well alone.

Operator of record

Durango Resources Corp.

Permitted by Synergy Oil & Gas, Inc. (A); the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Apr 1, 2026
Permits on file
18
Phone
(281) 558-7998

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDurango Resources Corp.
Production reportsDurango Resources Corp.through Apr 2015
Latest permitSynergy Oil & Gas, Inc. (A)Sep 12, 1997

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

6,363
total depth, ft
1
permits on file
Sep 12, 1997
last permit issued
—
completed
918
cumulative oil, bbl
41.9K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

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 3 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Estell, Mary King G-4-165285Richard King (Frio Cons.)Durango Resources Corp.1041.9KSep 1997 – Jul 2026
King, Richard O-4-13497Richard King (Frio Cons.)Durango Resources Corp.200Nov 2008 – Jul 2026
King, Richard O-4-9941Captain Lucey (4950 Sand)Durango Resources Corp.39180Jan 1993 – Feb 2012

No volumes reported on these leases in the last three years.

Chain of custody

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

  1. 1Synergy Oil & Gas, Inc. (A)Oct 1997 → Sep 2000
  2. 2Durango Resources Corp.Dec 2003 → Apr 2015

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
467528-99RecompletionSynergy Oil & Gas, Inc. (A)Sep 12, 1997Sep 12, 1997Sep 27, 19976,363

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-4-165285————
—— O-4-9941————
—— O-4-13497————

Perforations

Perforated and open-hole intervals.

FromToType
3,8923,922Perforated
—5,037Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,014—335 S
5.55,0969.875275 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 14, 2008——
00Jan 20, 1998Nov 7, 1997Yes
00Dec 3, 1997——
00Jan 12, 1984——

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/35500119, documented in the API reference.