WELL · 42-329-00411 · DISTRICT 8

Dora Roberts Ranch Unit #502

N

Midland County · Dora Roberts (Strawn) field  · Vertical

Dora Roberts Ranch Unit #502 (API 42-329-00411) is a well in Midland County operated by Oxy USA Inc., completed November 23, 1993.

The RRC has issued 2 drilling permits between 1993 and 2013, permitted to 13,346 ft.

It was permitted by Oxy USA Wtp LP and has since transferred to Oxy USA Inc. on the wellbore schedule.

Completion filings report 3 formation tops, including San Andres, Pean, Ellenburger.

Its 4 leases have reported 9.1M barrels of oil and 45.7M mcf of gas since January 1993, last reporting in July 2026. The leases carry 293 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 777K barrels injected in the 12 months reported through January 2026.

Operator of record

OXY USA Inc.

Permitted by OXY USA WTP LP; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Dec 4, 2025 · 3,316 permits on file · (713) 215-7000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOXY USA Inc.
Production reportsContinental Resources, Inc.through Apr 2026
Latest permitOXY USA WTP LPMay 2, 2013

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

13,346
total depth, ft
2
permits on file
May 2, 2013
last permit issued
Nov 23, 1993
completed
9.1M
cumulative oil, bbl
45.7M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Nov 23, 1993
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 293 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Dora Roberts Ranch Unit O-10-15848Dora Roberts (Ellenburger)Continental Resources, Inc.28809K5.29MJan 1993 – Jul 2026
Dora Roberts Ranch Unit O-10-34635Dora Roberts (Consolidated)Continental Resources, Inc.2448.26M39.5MOct 1995 – Jul 2026
Dora Roberts Ranch Unit O-10-8662Dora Roberts (Strawn)OXY USA Inc.34.96K148Jan 1993 – Sep 1996
Dora Roberts Ranch Unit O-10-15850Dora Roberts (Pennsylvanian)OXY USA Inc.1826.2K837KJan 1993 – Dec 1995

Oil, barrels lease total

Last 12 months 151,922 · prior 12 192,776(-21%)

010K20K30K202420252026

Gas, mcf lease total

Last 12 months 665,627 · prior 12 930,552(-28%)

050K100K150K202420252026

Chain of custody

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

  1. 1OXY USA Inc.Jan 1993 → Dec 2000
  2. 2OXY USA WTP LPJan 2001 → Oct 2023
  3. 3Continental Resources, Inc.Nov 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
761636-99RecompletionOXY USA WTP LPApr 29, 2013May 2, 2013Dec 15, 201013,346
419014-99RecompletionOXY USA Inc.Dec 6, 1993Dec 6, 1993Nov 9, 199313,346

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-8662————
—— O-10-15848————
—— O-10-15848————
—— O-10-15850————
—— O-10-34635————

Formation tops

As filed on W-2/G-1. Subsea from 2,852 ft elevation.Download CSV →

FormationMD ftSubsea
San Andres4,750-1,898
Pean10,300-7,448
Ellenburger13,048-10,196

Perforations

Perforated and open-hole intervals.

FromToType
9,99610,026Perforated
10,28610,315Perforated
13,05313,346Perforated
13,05313,346Open hole
—13,042Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.375273—265 S
13.37529317.5265 S
9.6255,256—2,310 S
9.6255,27712.25180 S
5.513,036—725 S
5.513,037——
5.513,0537.875425 S
5.513,0538.75725 S
9.625—12.252,130 S
5.5—7.875300 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 1, 2024Aug 21, 2023—
00Jun 20, 2013May 7, 2013—
00Oct 17, 1995Dec 8, 1993Yes
00Feb 24, 1994Dec 8, 1993Yes
00Dec 22, 1993Apr 29, 1991—
00Feb 25, 1992Apr 29, 1991—
00Jan 12, 1984Sep 5, 1968—
00Jan 12, 1984Aug 31, 1964—
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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

777K
bbl, last 12 reported months
15.5M
bbl, all reported
Jan 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000012245H-1 InjectionCanceled Jan 21, 19942,50020013,094–13,256
000101212H-1 InjectionActive10,0006,00013,053–13,346

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

Last 12 months 776,515 · prior 12 839,637(-8%)

050K100K20252026

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/32900411, documented in the API reference.