TEXAS · WELLS · ANDREWS COUNTY · FULLERTON CLEARFORK UNIT LEASE · API 42-003-36202 · DISTRICT 7B

Fullerton Clearfork Unit #5639

Plugged

Andrews County · Fullerton field  · Vertical

Fullerton Clearfork Unit #5639 (API 42-003-36202) is a plugged well in Andrews County, plugged December 1, 2005, last operated by Hilcorp Energy Company.

The RRC has issued 2 drilling permits between 1988 and 1995, permitted to 7,500 ft.

It was permitted by Exxon Corp. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 3 formation tops, including Clear Fork, Tubb, Wichita-Albany.

Its lease has reported 77.4M barrels of oil and 65.6M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 1,406 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Permitted by Exxon Corp.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Mar 27, 2026
Permits on file
3,459
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Aug 2026
Latest permitExxon Corp.Dec 11, 1995

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

7,500
total depth, ft
2
permits on file
Dec 11, 1995
last permit issued
Aug 19, 1995
completed
77.4M
cumulative oil, bbl
65.6M
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
OFF SCHEDULE
Completed
Aug 19, 1995
Shut in
—
Plugged
Dec 1, 2005

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 1,406 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Fullerton Clearfork Unit O-10-1770FullertonHilcorp Energy Company1,40677.4M65.6Mby Jan 1993 – Aug 2026

Oil, barrels lease total

Last 12 months 1,072,836 · prior 12 770,288(+39%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 1,048,238 · prior 12 633,338(+66%)

050K100K150K202420252026

Wells named Fullerton Clearfork Unit

Hilcorp Energy Company's other wells filed under this lease name in Andrews 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. 1Exxon Corp.Jan 1993 → Mar 2000
  2. 2Exxon Mobil CorporationApr 2000 → Dec 2011
  3. 3XTO Energy Inc.Jan 2012 → Mar 2025
  4. 4Hilcorp Energy CompanyApr 2025 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
442613-99RecompletionExxon Corp.Dec 7, 1995Dec 11, 1995—7,500
348709-99DrillExxon Corp.Jul 11, 1988Jul 12, 1988—7,400

Completions

CompletedLeaseFieldOperatorStatusDepth
Aug 19, 1995Fullerton Clearfork Unit O-10-1770FullertonHilcorp Energy CompanyPlugged—

Formation tops

As filed on W-2/G-1. Subsea from 3,325 ft elevation.Download CSV →

FormationMD ftSubsea
Clear ForkUPPER CLEARFORK6,030-2,705
Tubb6,491-3,166
Clear ForkLOWER CLEARFORK6,554-3,229
Wichita-AlbanyWICHITA7,022-3,697

Perforations

Perforated and open-hole intervals.

FromToType
6,0487,300Perforated
6,0907,300Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,71312.25600 S
5.57,3967.8751,411 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 21, 1995Aug 29, 1995—
00Nov 29, 1988Oct 31, 1988Yes
00Nov 8, 1988——

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. The University Lands library has no per-well link: then paste it into its search.

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Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
0
bbl, all reported
Mar 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000084376H-1 InjectionNot activated2,0002,5005,705–7,500

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

Last 12 months 0 · prior 12 0

0120252026

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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