WELL · 42-357-30785 · DISTRICT 10

Tarbox -A- #1

Plugged

Ochiltree County · Pan Petro (Cleveland) field  · Vertical

Tarbox -A- #1 (API 42-357-30785) is a plugged well in Ochiltree County, plugged September 12, 2018, last operated by Unit Petroleum Company.

The RRC has issued one drilling permit, issued September 8, 1977, permitted to 7,150 ft.

It was permitted by Horizon Oil & Gas CO. Of Texas and has since transferred to Unit Petroleum Company on the wellbore schedule.

Its 2 leases have reported 11.2K barrels of oil and 39.7K mcf of gas since January 1993, last reporting in January 2023. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

Unit Petroleum Company

Permitted by Horizon Oil & Gas Co. of Texas; the EWA schedule now lists a different operator.

Tulsa, OK · P-5 Y, filed Dec 4, 2025 · 1,100 permits on file · (918) 493-7700

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleUnit Petroleum Company
Production reportsUnit Petroleum Companythrough Aug 2014
Latest permitHorizon Oil & Gas Co. of TexasSep 8, 1977

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

7,150
total depth, ft
1
permits on file
Sep 8, 1977
last permit issued
Sep 27, 1977
completed
11.2K
cumulative oil, bbl
39.7K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jan 2023

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Sep 27, 1977
Shut in
—
Plugged
Sep 12, 2018

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
Tarbox -A- O-14-8314Pan Petro (Cleveland)Unit Petroleum Company1441209May 2011 – Jan 2023
Tarbox -A- O-14-4246Horizon (Cleveland)Noble Energy Inc110.8K39.5KJan 1993 – Jan 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. 1Horizon Oil & Gas Co.Jan 1993 → Dec 1994
  2. 2Sonat Exploration Company-MCRJan 1995 → Oct 1996
  3. 3Horizon Natural Resources, Inc.Nov 1996 → Jul 1999
  4. 4Montgomery Petroleum, Inc.Aug 1999 → Jan 2000
  5. 5Mboe Oil and Gas LPFeb 2000 → May 2001
  6. 6Cordillera Energy Partners, LLCJun 2001 → Sep 2003
  7. 7Patina Oil & Gas CorporationOct 2003 → Apr 2005
  8. 8Noble Energy Production, Inc.Jul 2005 → Jul 2007
  9. 9Noble Energy IncSep 2007 → Aug 2012
  10. 10Unit Petroleum CompanyMar 2013 → Aug 2014

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
7146-99DrillHorizon Oil & Gas Co. of TexasSep 8, 1977Sep 8, 1977Sep 13, 19777,150

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-14-4246————
—— O-14-8314————

Perforations

Perforated and open-hole intervals.

FromToType
6,9827,006Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,513—750 S
2.3757,016——
4.57,142—250 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 15, 2011——
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/35730785, documented in the API reference.