WELL · 42-133-32925 · DISTRICT 7

Cantwell W. O. #1

N

Eastland County · Ranger NW (Marble Falls) field  · Vertical

Cantwell W. O. #1 (API 42-133-32925) is a well in Eastland County operated by H. E. F. Oilfield Supply Inc., completed December 29, 1981.

The RRC has issued one drilling permit, issued March 23, 1981, permitted to 3,550 ft.

It was permitted by Show Petroleum Incorporated and has since transferred to H. E. F. Oilfield Supply Inc. on the wellbore schedule.

Completion filings report one formation top, including Marble Falls.

Its 2 leases have reported 10.8K barrels of oil and 18.2K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

H. E. F. Oilfield Supply Inc.

Permitted by Show Petroleum Incorporated; the EWA schedule now lists a different operator.

Olden, TX · P-5 Y, filed Jan 5, 1998 · 8 permits on file

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleH. E. F. Oilfield Supply Inc.
Production reportsEvarado Oil, LLCthrough Mar 2026
Latest permitShow Petroleum IncorporatedMar 23, 1981

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

3,550
total depth, ft
1
permits on file
Mar 23, 1981
last permit issued
Dec 29, 1981
completed
10.8K
cumulative oil, bbl
18.2K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Dec 29, 1981
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cantwell, W. O. O-8-30411Ranger,nw (Marble Falls)Evarado Oil, LLC110.8K80Aug 2009 – Jul 2026
Cantwell, W.O. G-8-121066Ranger,nw (Marble Falls)Evarado Oil Company1018.1KJan 1993 – Aug 2009

Oil, barrels lease total

Last 12 months 6 · prior 12 5(+20%)

01202420252026

Chain of custody

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

  1. 1H. E. F. Oilfield Supply, Inc.Jan 1993 → Jun 1995
  2. 2Evarado Oil CompanyOct 1995 → Aug 2010
  3. 3Evarado Oil, LLCSep 2010 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
112840-99DrillShow Petroleum IncorporatedMar 23, 1981Mar 23, 1981Jun 21, 19813,550

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-8-121066————
—— O-8-30411————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Marble Falls3,350

Perforations

Perforated and open-hole intervals.

FromToType
3,3503,372Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62520812.25100 S
8.62520812.5100 S
2.3753,320——
4.53,8417.87590 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
00Jan 4, 2010Aug 17, 2009—
00Oct 27, 2009——
00Jun 9, 1986Apr 11, 1986—
00May 30, 1986——
00Jan 12, 1984Mar 1, 1982—

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/13332925, documented in the API reference.