TEXAS · WELLS · SCURRY COUNTY · STATE-STRAIN UNIT LEASE · API 42-415-33022 · DISTRICT 7B

State-Strain Unit #81

On schedule

Scurry County · Sharon Ridge (1700) field · Injection  · Vertical

State-Strain Unit #81 (API 42-415-33022) is a well in Scurry County operated by Schlachter Operating Corporation, completed March 14, 1989 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued January 9, 1989, permitted to 1,797 ft.

It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Schlachter Operating Corporation on the wellbore schedule.

Completion filings report 2 formation tops, including Yates, San Andres.

Its lease has reported 1.18M barrels of oil and 13K mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 94 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 40.5K barrels injected in the 12 months reported through July 2026.

Operator of record

Schlachter Operating Corporation

Permitted by Mobil Producing TX. & N.M. Inc.; the EWA schedule now lists a different operator.

Based in
Dallas, TX
P-5 status
Active – Extension (X)
P-5 last filed
Sep 25, 2026
Permits on file
65
Phone
(214) 692-1567

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSchlachter Operating Corporation
Production reportsSchlachter Operating Corporationthrough Aug 2026
Latest permitMobil Producing TX. & N.M. Inc.Jan 9, 1989

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

1,797
total depth, ft
1
permits on file
Jan 9, 1989
last permit issued
Mar 14, 1989
completed
1.18M
cumulative oil, bbl
13K
cumulative gas, mcf

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

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 14, 1989
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

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 lease this well is completed on; they carry 94 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
State-Strain Unit O-11-5738Sharon Ridge (1700)Schlachter Operating Corporation941.18M13Kby Jan 1993 – Aug 2026

Oil, barrels lease total

Last 12 months 7,047 · prior 12 8,172(-14%)

05001K1.5K202420252026

Wells named State-Strain Unit

Schlachter Operating Corporation's other wells filed under this lease name in Scurry 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. 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
  2. 2Parker & Parsley Development L.PMar 1995 → Aug 1997
  3. 3Pioneer Natural Res. USA, Inc.Sep 1997 → Nov 1997
  4. 4Titan Resources I, Inc.Dec 1997 → May 2000
  5. 5Pure Resources, L.P.Jun 2000 → Apr 2003
  6. 6Big D Energy CompanyMay 2003 → Dec 2018
  7. 7Schlachter Operating CorporationJan 2019 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
354660-99DrillMobil Producing TX. & N.M. Inc.Dec 27, 1988Jan 9, 1989—2,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 14, 1989State-Strain Unit O-11-5738Sharon Ridge (1700)Schlachter Operating CorporationInjection1,797

Formation tops

As filed on W-2/G-1. Subsea from 2,155 ft elevation.Download CSV →

FormationMD ftSubsea
Yates9371,218
San Andres1,360795

Perforations

Perforated and open-hole intervals.

FromToType
1,6241,694Perforated
1,6241,694Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62532912.25250 S
5.51,7977.875680 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
00May 31, 1989Apr 24, 1989Yes
00May 30, 1989May 12, 1989—
00May 3, 1989——

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

40.5K
bbl, last 12 reported months
1.01M
bbl, all reported
Jul 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000071943H-1 InjectionActive2507501,621–1,700

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

Last 12 months 40,496 · prior 12 40,106(+1%)

02K4K20252026

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

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