WELL · 42-185-30384 · DISTRICT 3

Apolonia #1

Plugged

Grimes County  · Horizontal

Apolonia #1 (API 42-185-30384) is a plugged horizontal well in Grimes County, plugged August 12, 1985, last operated by Marathon Oil Company.

The RRC has issued 2 drilling permits (amended once) between 1985 and 1997, permitted to 17,500 ft.

Completion filings report 4 formation tops, including Pecan Gap, Taylor, Tac, Bac.

Operator of record

Marathon Oil Company

Based in
Houston, TX
P-5 status
Delinquent (D)
P-5 last filed
Aug 14, 2025
Permits on file
3,707
Phone
(281) 293-1000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsEnervest Operating, L.L.C.through Sep 2010
Latest permitMarathon Oil CompanyJan 17, 1997
17,500
total depth, ft
3
permits on file
Jan 17, 1997
last permit issued
—
completed
0
cumulative oil, bbl
499K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 1997 THROUGH Jan 2023

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
Aug 12, 1985

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
Apolonia G-3-163579Giddings (Austin Chalk, Gas)Magnolia Oil & Gas Operating LLC10499KMay 1997 – Jan 2023

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. 1Marathon Oil CompanyMay 1997 → Aug 2009
  2. 2Enervest Operating, L.L.C.Sep 2009 → Sep 2010

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
457548-98ReenterMarathon Oil CompanyApr 4, 1997Jan 17, 1997Feb 18, 199717,500
457548-99ReenterMarathon Oil CompanyJan 17, 1997Jan 17, 1997—14,824
277179-99DrillArco Oil & Gas Co.May 20, 1985Jun 7, 1985—16,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-3-163579————

Formation tops

As filed on W-2/G-1. Subsea from 343 ft elevation.Download CSV →

FormationMD ftSubsea
Pecan Gap12,036-11,693
TaylorTAYLOR SHALE12,240-11,897
Tac12,814-12,471
Bac13,109-12,766

Perforations

Perforated and open-hole intervals.

FromToType
13,87417,095Perforated
14,17916,465Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.752,21313.5635 S
7.62513,8749.8751,150 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
00Aug 12, 1997Jun 19, 1997Yes
00Jul 25, 1997——

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/18530384, documented in the API reference.