WELL · 42-003-10983 · DISTRICT 8

Holt O.B. Grbg #501

Plugged

Andrews County · Cowden North field  · Vertical

Holt O.B. Grbg #501 (API 42-003-10983) is a plugged well in Andrews County, plugged July 28, 2004, last operated by Olsen Energy Inc..

The RRC has issued one drilling permit, issued February 2, 1979, permitted to 9,110 ft.

It was permitted by Sun Exploration & Production CO. and has since transferred to Olsen Energy Inc. on the wellbore schedule.

Its 2 leases have reported 511K barrels of oil and 114K mcf of gas since January 1993, last reporting in July 2026. The leases carry 107 wells, so these are lease totals, not this well alone.

Operator of record

Olsen Energy Inc.

Permitted by Sun Exploration & Production Co.; the EWA schedule now lists a different operator.

Based in
Boerne, TX
P-5 status
Active (A)
P-5 last filed
May 26, 2026
Permits on file
243
Phone
(210) 496-2466

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOlsen Energy Inc.
Production reportsOlsen Energy Inc.through Apr 2026
Latest permitSun Exploration & Production Co.Feb 2, 1979

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

9,110
total depth, ft
1
permits on file
Feb 2, 1979
last permit issued
Apr 8, 1979
completed
511K
cumulative oil, bbl
114K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Apr 8, 1979
Shut in
—
Plugged
Jul 28, 2004

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 107 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Holt, O.B. Grbg O-10-20398Cowden, NorthOlsen Energy Inc.97386K57.4KJan 1993 – Jul 2026
Holt, O. B. Penn O-10-20407Triple-N (Penn., Upper)Olsen Energy Inc.10125K56.2KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 11,874 · prior 12 13,926(-15%)

05001K1.5K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 6,626(-100%)

05001K202420252026

Chain of custody

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

  1. 1Stephens, Autry C.Jan 1993 → Aug 2000
  2. 2Endeavor Energy Resources L.P.Sep 2000 → Nov 2023
  3. 3Silver Cross Energy Partners LLCDec 2023 → Dec 2024
  4. 4Olsen Energy Inc.Jan 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
41940-99RecompletionSun Exploration & Production Co.Feb 2, 1979Feb 2, 1979—9,110

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 8, 1979Holt O.B. Grbg O-10-20398Cowden NorthOlsen Energy Inc.Plugged—
—Holt O. B. Penn O-10-20407Triple-N (Penn. Upper)Olsen Energy Inc.Plugged—

Perforations

Perforated and open-hole intervals.

FromToType
4,2504,536Perforated
—9,031Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.7532613.5250 S
2.8754,628——
7.6254,7107.6251,500 S
2.8758,879——

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 12, 1984May 10, 1979—
00Jan 12, 1984May 16, 1968—

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) and the University Lands library. 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/00310983, documented in the API reference.