TEXAS · WELLS · ANDREWS COUNTY · FULLERTON CLEARFORK UNIT LEASE · API 42-003-35101 · DISTRICT 7B
Fullerton Clearfork Unit #723
Andrews County · Fullerton field · Shut In · Vertical
Fullerton Clearfork Unit #723 (API 42-003-35101) is a well in Andrews County operated by Hilcorp Energy Company, completed March 31, 2021 and listed as shut in on the RRC schedule, shut in June 1, 2020.
The RRC has issued one drilling permit, issued August 21, 1985, permitted to 7,408 ft.
It was permitted by Exxon Corp. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 5 formation tops, including Glorieta, Clear Fork, Tubb, Upper Staining.
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
Permitted by Exxon Corp.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)RRC P-5 file of Oct 22, 2026
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,461
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Aug 2026 |
| Latest permit | Exxon Corp.Aug 21, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,408
- total depth, ft
- 1
- permits on file
- Aug 21, 1985
- last permit issued
- Mar 31, 2021
- 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
- ON SCHEDULE
- Completed
- Mar 31, 2021
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Fullerton Clearfork Unit O-10-1770 | Fullerton | Hilcorp Energy Company | 1,406 | 77.4M | 65.6M | by Jan 1993 – Aug 2026 |
Oil, barrels lease total
Last 12 months 1,072,836 · prior 12 770,288(+39%)
Gas, mcf lease total
Last 12 months 1,048,238 · prior 12 633,338(+66%)
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 wellsChain of custody
Operator on the lease's P-4
Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.
| Operator | From | To |
|---|---|---|
| Hilcorp Energy Company | Apr 1, 2025 | today |
| XTO Energy Inc. | Jan 1, 2012 | Apr 1, 2025 |
| Exxon Mobil Corporation | Apr 1, 2000 | Jan 1, 2012 |
| Exxon Corp. | Apr 1, 1977 | Apr 1, 2000 |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Dec 2011
- 3XTO Energy Inc.Jan 2012 → Mar 2025
- 4Hilcorp Energy CompanyApr 2025 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 283224-99 | Drill | Exxon Corp. | Aug 12, 1985 | Aug 21, 1985 | Oct 4, 1985 | 7,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 31, 2021 | Fullerton Clearfork Unit O-10-1770 | Fullerton | Hilcorp Energy Company | Shut In · shut in Jun 1, 2020 | 7,408 |
Formation tops
As filed on W-2/G-1. Subsea from 3,343 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Glorieta | 5,481 | -2,138 |
| Clear ForkCLEARFORK | 6,022 | -2,679 |
| Tubb | 6,468 | -3,125 |
| Clear ForkLOWER CLEARFORK | 6,552 | -3,209 |
| Upper Staining | 6,624 | -3,281 |
| Wichita-AlbanyWICHITA ALBANY | 7,040 | -3,697 |
| Wichita-AlbanyWICHITA | 7,052 | -3,709 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,001 | 7,100 | Perforated |
| 6,746 | 7,390 | Perforated |
| 6,810 | 7,070 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,700 | 12.25 | 750 S |
| 5.5 | 7,401 | 7.875 | 1,800 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 →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 13, 2021 | Apr 26, 2021 | — |
| 00 | Nov 20, 1997 | Oct 16, 1997 | — |
| 00 | Oct 10, 1990 | Jun 22, 1990 | — |
| 00 | Jan 10, 1986 | Dec 27, 1985 | Yes |
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.
- Wellbore filings for 42-003-35101 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-35101 → scanned completion filings
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.
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/00335101, documented in the API reference.