Petrora

TEXAS · WELLS · COOKE COUNTY · API 42-097-02536 · DISTRICT 7C

Walnut Bend Field Unit #21-1W

Plugged

Cooke County · Walnut Bend (Consolidated) field  · Vertical

Permitted field
Walnut Bend (Hudspeth)

Walnut Bend Field Unit #21-1W (API 42-097-02536) is a plugged well in Cooke County, plugged June 18, 2021, last operated by Sydri Operating LLC.

The RRC has issued one drilling permit, issued May 19, 1982, permitted to 4,912 ft.

It was permitted by Arco Oil & Gas CO. and has since transferred to Sydri Operating LLC on the wellbore schedule.

Its 2 leases have reported 6.72M barrels of oil and 1.39M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The leases carry 370 wells, so these are lease totals, not this well alone.

Operator of record

Sydri Operating LLC

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

Based in
Dallas, TX
P-5 status
Active (A)
P-5 last filed
Mar 11, 2026
Permits on file
46
Phone
(214) 373-8626
Create operator alert

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSydri Operating LLC
Production reportsSydri Operating, LLCthrough Apr 2026
Latest permitArco Oil & Gas Co.May 19, 1982

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

4,912
total depth, ft
1
permits on file
May 19, 1982
last permit issued
Nov 1, 1982
completed
6.72M
cumulative oil, bbl
1.39M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026

On this pageLease production3 completionsInjection volumes

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Nov 1, 1982
Shut in
—
Plugged
Jun 18, 2021

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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 370 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Walnut Bend Field Unit O-13-27427Walnut Bend (Consolidated)Sydri Operating, LLC3706.72M1.39Mby Jan 1993 – Aug 2026
— O-13-13266——000—

Oil, barrels lease total

Last 12 months 74,535 · prior 12 84,369(-12%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 22,115 · prior 12 20,565(+8%)

01K2K3K202420252026

Wells named Walnut Bend Field Unit

Sydri Operating LLC's other wells filed under this lease name in Cooke County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

  1. 1Arco Oil & Gas Co.Jan 1993 → Feb 1994
  2. 2Vastar Resources, Inc.Mar 1994 → May 1999
  3. 3Gruy Petroleum Management Co.Jun 1999 → Apr 2006
  4. 4Cimarex Energy Co. of ColoradoMay 2006 → Dec 2012
  5. 5Merit Energy CompanyJan 2013 → Nov 2020
  6. 6Team Operating, L.L.C.Dec 2020 → Jun 2021
  7. 7Sydri Operating, LLCJul 2021 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
161088-99RecompletionArco Oil & Gas Co.May 19, 1982May 19, 1982—4,912

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 1, 1982Walnut Bend Field Unit No. 2 O-13-13266Walnut Bend (Hudspeth)Arco Oil & Gas Co.Plugged—
Nov 1, 1982Walnut Bend Field Unit O-13-27427Walnut Bend (Consolidated)Sydri Operating LLCPlugged—
Oct 13, 1974Walnut Bend Field Unit No. 2 O-13-13264Walnut Bend (Regular)Arco Oil & Gas Co.Plugged—

Perforations

Perforated and open-hole intervals.

FromToType
3,8233,853Perforated
3,8234,069Perforated
4,0544,069Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
1350—100 S
8.6251,034—300 S
5.54,889—400 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Nov 12, 1991Feb 4, 1983—
00May 6, 1986Apr 23, 1986—
00Jan 12, 1984Feb 4, 1983—

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
307K
bbl, all reported
Aug 2021
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000034182H-1 InjectionPlugged Sep 30, 20211,0002,0004,663–4,694
000046019H-1 InjectionPlugged Sep 30, 20211,5001,6003,823–3,853

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

Last 12 months 0 · prior 12 0

0120202021

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.

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