TEXAS · WELLS · CRANE COUNTY · API 42-103-30278 · DISTRICT 7B

Sand Hills Judkins Unit #39A

Shut in

Crane County · Sand Hills (Wojcik-McElroy) field · Temp Abandoned  · Vertical

Sand Hills Judkins Unit #39A (API 42-103-30278) is a well in Crane County operated by Formentera Operations LLC, completed November 6, 2005 and listed as temp abandoned on the RRC schedule, shut in June 1, 2020.

The RRC has issued 5 drilling permits between 1980 and 2005, permitted to 4,800 ft.

It was permitted by Encore Operating, L.P. and has since transferred to Formentera Operations LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Holt, Clear Fork, Tubb.

Its 3 leases have reported 22.8K barrels of oil and 482K mcf of gas since January 1993, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.

Operator of record

Formentera Operations LLC

Permitted by Encore Operating, L.P.; the EWA schedule now lists a different operator.

Based in
Austin, TX
P-5 status
Active – Extension (X)
P-5 last filed
Jun 11, 2026
Permits on file
90
Phone
(512) 514-5779

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsGrizzly OP of Delaware, LLCthrough May 2020
Latest permitEncore Operating, L.P.Jun 10, 2005
4,800
total depth, ft
5
permits on file
Jun 10, 2005
last permit issued
Nov 6, 2005
completed
22.8K
cumulative oil, bbl
482K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 6, 2005
Shut in
Jun 1, 2020
Plugged
—

Operator's P-5 on the schedule: Active (A)

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 3 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Sand Hills Judkins Unit G-10-212740Sand Hills (Wojcik-McElroy)Formentera Operations LLC10117KNov 2005 – Jul 2026
Sand Hills Judkins Unit O-10-27963Sand Hills (Judkins)Vanguard Operating, LLC422.8K365KJan 1993 – Sep 2015
— G-10-133926——000—

No volumes reported on these leases in the last three years.

Chain of custody

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

  1. 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Oct 1996
  2. 2Titan Resources I, Inc.Nov 1996 → May 2000
  3. 3Pure Resources, L.P.Jun 2000 → Mar 2002
  4. 4Home-Stake Oil & Gas CompanyApr 2002 → Jul 2002
  5. 5Cortez Operating CompanyAug 2002 → Apr 2004
  6. 6Encore Operating, L.P.May 2004 → Aug 2009
  7. 7Encore Energy Partners Oper LLCSep 2009 → Mar 2012
  8. 8Vanguard Permian, LLCApr 2012 → Apr 2015
  9. 9Vanguard Operating, LLCMay 2015 → Aug 2019
  10. 10Grizzly OP of Delaware, LLCSep 2019 → May 2020

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
600621-99RecompletionEncore Operating, L.P.May 13, 2005Jun 10, 2005Oct 26, 20054,800
365787-99RecompletionMobil Producing TX. & N.M. Inc.Oct 30, 1989Nov 29, 1989—4,800
328078-99RecompletionMobil Producing TX. & N.M. Inc.Mar 23, 1987May 11, 1987—4,800
104603-99RecompletionMobil Producing TX. & N.M. Inc.Dec 31, 1980Dec 31, 1980—4,800
91691-99RecompletionMobil Producing TX. & N.M. Inc.Sep 5, 1980Sep 5, 1980—4,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 6, 2005Sand Hills Judkins Unit G-10-212740Sand Hills (Wojcik-McElroy)Formentera Operations LLCTemp Abandoned · shut in Jun 1, 20204,800
May 10, 1990Sand Hills Judkins Unit O-10-27963Sand Hills (Judkins)Vanguard Operating LLCNot on Schedule—
Dec 27, 1989Sand Hills Judkins Unit G-10-133926Sand Hills (Judkins)Mobil Producing TX. & N.M. Inc.Not on Schedule—
Apr 25, 1985Sand Hills Tubb Unit O-10-20865Sand Hills (Tubb)Formentera Operations LLCNot on Schedule—
Aug 28, 1970Sand Hills Tubb Unit O-10-20865Sand Hills (Tubb)Formentera Operations LLCNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,611 ft elevation.Download CSV →

FormationMD ftSubsea
Holt3,980-1,369
Clear ForkCLEARFORK4,217-1,606
Tubb4,518-1,907

Perforations

Perforated and open-hole intervals.

FromToType
2,6082,730Perforated
3,0103,283Open hole
4,5234,768Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62561511400 S
8.62561512.25400 S
8.625615——
2.3754,144——
5.54,8007.875390 S
5.54,800——

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
00Feb 27, 2006Dec 1, 2005Yes
00Dec 16, 2005——
00Jul 31, 1990Jun 12, 1990—
00Jul 6, 1990——
00Apr 12, 1990Feb 1, 1990Yes
00Apr 10, 1990——
00Aug 27, 1986May 9, 1985—
00Jan 12, 1984Jun 9, 1981—
00Jan 12, 1984Sep 16, 1970—

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
2.37K
bbl, all reported
Jun 1991
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000043463UIC PermitCanceled Jul 10, 19923501,5004,523–4,763

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

Last 12 months 0 · prior 12 0

0119901991

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/10330278, documented in the API reference.