WELL · 42-169-33038 · DISTRICT 8

N. Huntley Unit #T511S

Y

Garza County · Huntley (3400) field · Injection  · Vertical

N. Huntley Unit #T511S (API 42-169-33038) is a well in Garza County operated by Southwest Royalties Inc., completed March 13, 1991 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued February 11, 1991, permitted to 3,700 ft.

It was permitted by Graham Royalty, Ltd. and has since transferred to Southwest Royalties Inc. on the wellbore schedule.

Completion filings report 3 formation tops, including Anhydrite, Yates, San Andres.

Its lease has reported 3.75M barrels of oil and 934K mcf of gas since January 1993, last reporting in July 2026. The lease carries 68 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 43.7K barrels injected in the 12 months reported through May 2025.

Operator of record

Southwest Royalties Inc.

Permitted by Graham Royalty, Ltd.; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed Oct 4, 2025 · 497 permits on file · (432) 770-0615

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSouthwest Royalties Inc.
Production reportsSouthwest Royalties, Inc.through Apr 2026
Latest permitGraham Royalty, Ltd.Feb 11, 1991

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

3,700
total depth, ft
1
permits on file
Feb 11, 1991
last permit issued
Mar 13, 1991
completed
3.75M
cumulative oil, bbl
934K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 13, 1991
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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 lease this well is completed on; they carry 68 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
N. Huntley Unit O-11-65672Huntley (3400)Southwest Royalties, Inc.683.75M934KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 13,040 · prior 12 13,270(-2%)

01K2K3K202420252026

Chain of custody

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

  1. 1Graham Royalty, Ltd.Jan 1993 → Oct 1993
  2. 2Midpar L.P.Nov 1993 → Feb 1995
  3. 3Parker & Parsley Development L.PMar 1995 → Aug 1997
  4. 4Pioneer Natural Res. USA, Inc.Sep 1997 → Jun 1999
  5. 5Prize Operating CompanyJul 1999 → Mar 2002
  6. 6Gruy Petroleum Management Co.Apr 2002 → Apr 2006
  7. 7Cimarex Energy Co. of ColoradoMay 2006 → Jan 2013
  8. 8Merit Energy CompanyFeb 2013 → May 2017
  9. 9Rover Petroleum Operating, LLCJun 2017 → Mar 2022
  10. 10Extex Operating CompanyApr 2022 → Oct 2025
  11. 11Southwest Royalties, Inc.Nov 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
384361-99DrillGraham Royalty, Ltd.Feb 7, 1991Feb 11, 1991Feb 18, 19913,700

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-11-65672————

Formation tops

As filed on W-2/G-1. Subsea from 2,819 ft elevation.Download CSV →

FormationMD ftSubsea
Anhydrite1,1951,624
Yates1,6121,207
San Andres2,644175

Perforations

Perforated and open-hole intervals.

FromToType
3,3103,320Perforated
3,3273,334Perforated
3,3433,347Perforated
3,3493,363Perforated
3,3683,372Perforated
3,3773,387Perforated
3,3933,399Perforated
3,4033,409Perforated
3,4623,468Perforated
3,4813,487Perforated
3,4903,500Perforated
3,5123,516Perforated
3,5603,566Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62525012.25150 S
5.53,6557.875825 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
00Apr 19, 1991Mar 27, 1991Yes
00Apr 4, 1991——

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

43.7K
bbl, last 12 reported months
3.89M
bbl, all reported
May 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000075521H-1 InjectionActive1,0001,6553,310–3,566

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

Last 12 months 43,666 · prior 12 59,569(-27%)

02K4K6K20242025

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/16933038, documented in the API reference.