WELL · 42-067-30051 · DISTRICT 6

Early #1

N

Cass County · Lassater (Cotton Valley) field  · Vertical

Early #1 (API 42-067-30051) is a well in Cass County operated by Marathon Oil Company, completed May 2, 1991.

The RRC has issued 2 drilling permits between 1991 and 1994, permitted to 12,819 ft.

Completion filings report 4 formation tops, including Cotton Valley, Bossier, Cotto Valley Lime, Smackover.

Its 4 leases have reported 22.2K barrels of oil and 1.9K mcf of gas since January 1993, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 693K barrels injected in the 12 months reported through March 2026.

Operator of record

Marathon Oil Company

Houston, TX · P-5 Y, filed Apr 4, 2026 · 3,707 permits on file · (800) 332-9449

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMarathon Oil Company
Production reportsBrown, Tom Inc.through Nov 2004
Latest permitMarathon Oil CompanyOct 14, 1994

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

12,819
total depth, ft
2
permits on file
Oct 14, 1994
last permit issued
May 2, 1991
completed
22.2K
cumulative oil, bbl
1.9K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 2, 1991
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 4 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Early SWD O-6-15602Lake Ferrell (Pettit, Upper)Rose City Resources, LLC200Jun 2016 – Jul 2026
Early SWD O-6-13344Avinger (Pettit)Buffco Production Inc.122.2K121Sep 1994 – Jun 2018
Early G-6-139025Lassater, E. (Cotton Valley)Marathon Oil Company101.78KJan 1993 – Sep 1994
— G-6-60611——000—

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 CompanyFeb 1993 → Jan 2000
  2. 2Matador Operating CompanyFeb 2000 → Jul 2003
  3. 3Brown, Tom Inc.Aug 2003 → Nov 2004

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
429098-99RecompletionMarathon Oil CompanyOct 14, 1994Oct 14, 1994Aug 22, 199412,819
389872-99RecompletionMarathon Oil CompanyJul 15, 1991Jul 19, 1991Apr 18, 199112,819

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-6-60611————
—— G-6-139025————
—— O-6-13344————
—— O-6-15602————

Formation tops

As filed on W-2/G-1. Subsea from 430 ft elevation.Download CSV →

FormationMD ftSubsea
Cotton ValleyCOTTON VALLEY SAND10,370-9,940
Bossier11,115-10,685
Cotton ValleyCOTTON VALLEY LM11,316-10,886
Cotto Valley Lime11,316-10,886
SmackoverSMACKOVER B11,820-11,390

Perforations

Perforated and open-hole intervals.

FromToType
5,0265,056Perforated
5,1545,182Perforated
5,2265,248Perforated
5,2765,308Perforated
7,6137,622Perforated
7,6297,632Perforated
7,6357,638Perforated
10,70910,720Perforated
11,35211,601Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
145916—
1459——
9.6253,86812.251,180 S
9.6253,868——
5.511,7148.75750 S
5.511,714——

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 27, 2018Jan 26, 2005—
00May 9, 2005Jan 26, 2005—
00Feb 1, 1995Oct 10, 1994Yes
00Dec 29, 1994——
00Sep 6, 1991Jul 2, 1991Yes
00Aug 28, 1991——
00Jan 12, 1984Jun 14, 1974—

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

693K
bbl, last 12 reported months
2.15M
bbl, all reported
Mar 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000094689W-14 DisposalActive4,0002,5005,010–5,315

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

Last 12 months 693,000 · prior 12 853,280(-19%)

050K100K150K20252026

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/06730051, documented in the API reference.